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Zero gravity looks cool. But what about the thing no one likes to talk about? Yes, that is right: g...
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高中英语《安徽省江南十校2016届高三下学期联考考试试题及答案》真题及答案
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It’sgreatfuntoexplore探索newplaces---itfeelslikeanadventureevenwhenyouknowyou’renotthefirsttohavebeentherE.Butmakesurenottogetlostorwastetimegoingroundincircles.●Dothemapreadingifyou'rebeingdrivensomewherE.It'llbeeasierifyoukeepturningthemapsoitfollowsthedirectionyou'retravelingin.Keeplookingaheadsothatyoucangivethedriverlotsofwarningbeforehavingtomakeaturnoryou'llhavetomovetothebackseat.●Getagroupoffriendstogetherandgoexploring.You'llneedagoodmapacompass指南针araincoatacellphonetocallforhelpincaseyougetlostandabitofsparecashforemergencies应急现金.Tellsomeonewhereyou'regoingbeforeyousetoutandletthemknowwhattimeyouexpecttobeback.Thetestisinnotgettinglostnotinseeinghowfastyoucangosoalwayssticktogetherwaitingforslowerfriendstocatchup.●Seeifyourschooloracluborganizesorienteeringactivitiesinwhichyouneedamapandacompasstofindyourway.ThiscanbedoneasasportwithteamstryingtofindthewayfromA.toB.andB.toCetC.inthefastesttimeorsimplyasaspare-timeactivity.Eitherwayit'snotonlygoodfunbutagreatwaytokeepfit.32.Sittingbesidethedriveryoushould________.A.directthedriverwhennecessaryB.lookaheadtoseewherethere'saturnC.movetothebackseatiffeelinguncomfortableD.keeplookingatthemaptofindaplacetogoto33.Whydoyouneedtotellsomeoneyourexplorationplanbeforesettingout?A.Togetinformationwhenindanger.B.Tobesavedincaseofanaccident.C.Tosharethefunwithhim/herinexploration.D.Totellhim/herwhat'sgoingonwiththegroupmembers.34.Orienteeringactivitiescan________.A.makepeopleworkfastB.helppeoplestayhealthyC.helppeopleorganizeotheractivitiesD.makepeoplegetpreparedforsports35.Thetextmainlytalksabout________.A.thefunofexplorationB.whattobringforexplorationC.thewaytousethemapinexplorationD.howtopreventgettinglostinexploration
RecentlyIspoketosomeofmystudentsaboutwhattheywantedtodoaftertheygraduatedandwhatkindofjobprospectstheythoughttheyhaD.GiventhatIteachstudentswhoaretrainedtobedoctorsIwassurprisedtofindthatmostthoughtthattheywouldnotbeabletogetthejobstheywantedwithoutoutsidehelp.Whatkindofhelpisthat?Iaskedexpectingthemtotellmethattheywouldneedarelativeorfamilyfriendtohelpthemout.SurgeryonereplieD.IwasprettyalarmedbythatresponsE.ItseemsthatthegraduatesoftodayareincreasinglywillingtogoundertheknifetogetaheadofotherswhenitcomestogettingajoB.Onegirltoldmethatshewasconsideringsurgerytoincreaseherheight.Theybreakyourlegsputinspecialextendingscrewsandslowlyexpandthegapbetweenthetwoendsoftheboneasitregrows.Youcangetatleast5cmtaller!AtthatpointIwasshockeD.Iamshort.Ican’tdenythatbutIdon’tthinkIwouldputmyselfthroughmonthsofpainjusttobeafewcentimeterstaller.Idon’tevenbothertowearshoeswiththicksolesasI.’mnottryingtohidethefactthatIamjustnottall!Itseemstomethatthereisatrendtowardwantingperfectionandthatisanidealthatjustdoesnotexistinreality.NooneisbornperfectyetmagazinesTVshowsandmoviespresentimagesofthintallbeautifulpeopleasbeingthenorm.Advertisementsforslimmingaidsbeautytreatmentsandcosmeticsurgery整容外科手术clinicsfillthepagesofnewspapersfurthercreatinganideathatperfectionisarequirementandthatitmustbepurchasednomatterwhatthecost.Inmyopinionskillsratherthanappearanceshoulddeterminehowsuccessfulapersonisinhischosencareer.32.Wecanknowfromthepassagethattheauthorworksas.A.adoctorB.ateacherC.amodeD.areporter33.Manygraduatestodayturntocosmeticsurgeryto.A.getanadvantageoverothersinjob-huntingB.becomeamodelC.marryabetterman/womanD.attractmoreadmirers34.Accordingtothepassagetheauthorbelievesthat.A.everyoneshouldpursueperfectionwhateverthecostB.it’srightforgraduatestoaskforotherstohelpthemoutinhuntingforjobsC.mediaaretoblameformisleadingyoungpeopleintheirseekingforsurgeryD.itisone’sappearanceinsteadofskillsthatreallymattersinone’scareer35.Whatdoestheauthorthinkofhisheight?A.Hehatestobecalledashortman.B.Hetriestoincreasehisheightthroughsurgery.C.Healwayswearsshoeswiththicksolestohidethefact.D.Hejustacceptsitasitis.
Gravitationalwavesaretheripples波纹inthepondofspacetimE.Thegravityoflargeobjectswarpsspaceandtimeorspacetimeasphysicistscallitthewayabowlingballchangestheshapeofatrampoline蹦床asitrollsaroundonit.Smallerobjectswillmovedifferentlyasaresult—likemarblesspiraling盘旋towardabowling-ball-sizeddent凹迹inatrampolineinsteadofsittingonaflatsurfacE.Scientistsannouncedthattheyhavesucceededindetectinggravitationalwavesfromtheviolentmerging兼并oftwoblackholesindeepspacE.Thedetectionwasregardedasavictoryforacontroversialdelicatelycraftedbillion-dollarphysicsexperimentandasconfirmationofakeypredictionofAlbertEinstein'sGeneralTheoryofRelativity.ThereisnoobviousimmediateconsequenceofthisphysicsexperimentbutthescientistssaythisopensanewwindowontheuniversE.Untilnowastronomyhasbeenalmostexclusivelyavisualenterprise:Scientistshavereliedonlightvisibleandotherwisetoobservethecosmos.Butnowgravitationalwavescanbeusedaswell.Theycouldpotentiallytakeacensusofblack-holemergersspotthecollisionsofultra-denseneutronstars中子星probetheinnerdynamicsofexplodingstarsanddiscovertheoreticalcosmicstringsleftoverfromthebigbang.ThesewaveswillbeparticularlyusefulforstudyingblackholestheexistenceofwhichwasfirstimpliedbyEinstein’stheoryandotherdarkobjectsbecausethey’llgivescientistsabrightbeacontosearchforevenwhenobjectsdon’temitactuallight.Mappingtheabundanceofblackholesandfrequencyoftheirmergerscouldgetaloteasier.SincetheypassthroughmatterwithoutinteractingwithitgravitationalwaveswouldcometoEarthcarryingundistortedinformationabouttheirorigin.Theycouldalsoimprovemethodsforestimatingthedistancestoothergalaxies.ItwillalsostartaneweraofastronomyinwhichgravitationalwavesaretoolsforstudyingthemostmysteriousandexoticobjectsintheuniversE.33.Accordingtothepassagewhichofthefollowingistrueabouttheexperimentofgravitationalwaves?A.Itisasuccessandwasapprovedofbyall.B.Itiswelldesignedthoughtimeandmoneyconsuming.C.Itprovesthatblackholesdogiveoutgravitationalwaves.D.ItprovesoneofthekeypredictionsofEinstein’sGeneralTheoryofRelativityright.34.Whyisgravitationalwavesimportant?A.Becausescientistshavereliedonlightvisibleandotherwisetoobservethecosmos.B.Becausetheyhavebeenusedtodiscoverfactsabouttheinnerdynamicsofexplodingstars.C.Becausetheycouldmakeitpossibletoprobeobjectsintotaldarknessevenwhentheydon’tgiveoutlight.D.Becausemappingtheabundanceofblackholesandfrequencyoftheirmergerscouldbeimpossiblewithoutthem.35.Theunderlinedwordundistortedinparagraph6probablymean_______A.UnrelateD.B.Unfamiliar.C.UnchangeD.D.Unreal.
Ifadiversurfaces浮出水面tooquicklyhemaysufferthebends减压病.Nitrogen氮dissolved溶解inhisbloodissuddenlyliberated释放bythereductionofpressurE.Theconsequenceifthebubbles气泡accumulateinajointissharppainandabentbody—thusthenamE.Ifthebubblesforminhislungsorhisbraintheconsequencecanbedeath.Otherair-breathinganimalsalsosufferthisdecompression减压sicknessiftheysurfacetoofast:whalesforexamplE.Andsolongagodidichthyosaurs鱼龙.Thattheseancientseaanimalsgotthebendscanbeseenfromtheirbones.Ifbubblesofnitrogenforminsidethebonetheycancutoffitsbloodsupply.ThiskillsthecellsintheboneandconsequentlyweakensitsometimestothepointofcollapsE.Fossil化石bonesthathavecavedinonthemselvesarethusasignthattheanimaloncehadthebends.BruceRothschildoftheUniversityofKansasknewallthiswhenhebeganastudyofichthyosaurbonestofindouthowwidespreadtheproblemwasinthepast.Whatheparticularlywantedtoinvestigatewashowichthyosaursadaptedtotheproblemofdecompressionoverthe150millionyears.Tothisendheandhiscolleaguestraveledtheworld’snatural-historymuseumslookingathundredsofichthyosaursfromtheTriassic三叠纪periodandfromthelaterJurassic侏罗纪andCretaceous白垩纪periods.Whenhestartedheassumedthatsignsofthebendswouldberarerinyoungerfossilsreflectingtheirgradualevolution进化ofmeasurestodealwithdecompression.InsteadhewasastonishedtodiscovertheoppositE.Morethan15%ofJurassicandCretaceousichthyosaurshadsufferedthebendsbeforetheydiedbutnotasingleTriassicspecimen标本showedevidenceofthatsortofinjury.Ifichthyosaursdidevolveananti-decompressionmeanstheyclearlydidsoquickly—andmoststrangelytheylostitafterwards.ButthatisnotwhatDrRothschildthinkshappeneD.HesuspectsitwasevolutioninotheranimalsthatcausedthechangE.Whalesthatsufferthebendsoftendosobecausetheyhavesurfacedtoescapeapredator捕食动物suchasalargeshark.OneofthefeaturesofJurassicoceanswasanabundanceoflargesharksandcrocodilesbothofwhichwerefondofichthyosaurlunches.Triassicoceansbycontrastweremercifullyshark-andcrocodile-freE.IntheTriassicthenichthyosaursweretopofthefoodchain.IntheJurassicandCretaceoustheywereprey猎物aswellaspredator—andoftenhadtomakeaspeedyexitasaresult.58.Whichofthefollowingisatypicalsymptomofthebends?A.A.twistedbody.B.A.gradualdecreaseinbloodsupply.C.A.suddenreleaseofnitrogeninblooD.D.A.dropinbloodpressurE.59.ThepurposeofRothschild’sstudyistosee______.A.howoftenichthyosaurscaughtthebendsB.howichthyosaursadaptedtodecompressionC.whyichthyosaursbenttheirbodiesD.whenichthyosaursbroketheirbones60.Rothschild’sfindingstatedinParagraph4______.A.confirmedhisassumptionB.speededuphisresearchprocessC.disagreedwithhisassumptionD.changedhisresearchobjectives61.Rothschildmighthaveconcludedthatichthyosaurs______.A.failedtoevolveananti-decompressionmeansB.graduallydevelopedmeasuresagainstthebendsC.diedoutbecauseoflargesharksandcrocodilesD.evolvedananti-decompressionmeansbutsoonlostit
SpeedreadingisanecessaryandvitalskillintheInternetagE.Weskimoverarticlese-mailsandtweets微博totrytograspkeywordsandtheessentialmeaningofthetext.WithsomuchinformationavailablethroughourelectronicdevicesitwouldbeimpossibletogetthrougheverythingifwereadwordbywordlinebylinE.Butanewtrendcallsonpeopletounplug拔掉电源插座andenjoyreadingslowlyonethatclaimstohavebenefitsbeyondintellectualstimulation智力上的刺激byspeedreading.ArecentstoryfromTheWallStreetJournalreportedonabookclubinWellingtonNewZealandwheremembersmeetinacafeandturnofftheirsmartphones.Theysinkintocomfortablechairsandreadinsilenceforanhour.Unliketypical一贯的bookclubsthepointoftheslowreadingclubisn’ttoexchangeideasaboutcertainbooksbuttogetawayfromelectronicdevicesandreadinaquietrelaxedenvironment.AccordingtothestorytheWellingtonbookclubisjustoneexampleofamovementstartedbybookloverswhomissthetraditionalwayofreading.TraditionalreaderslikeMauraKellysayaregularreadinghabitsharpensthemindimprovesconcentrationreducesstresslevelsanddeepenstheabilitytounderstandothers.SomeofthesebenefitshavebeenbackedupbysciencE.Forexampleastudyof300elderlypeoplepublishedbythejournalNeurologylastyearshowedthatmaturepeoplewhotakepartinactivitiesthatusetheirbrainsuchasreadingsufferlessmemorylossastheygetolder.AnotherstudypublishedlastyearinScienceshowedthatreadingnovelsinthetraditionalwayhelpspeopleunderstandothers’mentalstatesandbeliefs—akeyskillinbuildingrelationships.5.SpeedreadingisanecessaryandvitalskillintheInternetagebecausepeople______.A.havetograspthemeaningfasterB.havemuchmoreinformationtoreadC.nolongerreadwordbywordlinebylineD.mustusetheirsmartphonesmorefrequently6.MembersoftheWellingtonbookclubareexpectedto______.A.readpeacefullyforanhourB.makecoffeefortheothermembersC.regularlyswapideasaboutbooksD.turnofftheirsmartphonesforrecharging7.AccordingtotheNeurologystudywhoismostlikelytosuffermemoryloss?A.A.65-year-oldmanwhorarelyreads.B.A.79-year-oldwomanwhoreadsregularly.C.A.17-year-oldmiddleschoolstudentwhoseldomreadsnovels.D.A.healthy24-year-olduniversitygraduatewhooftenplaysgames.8.What’stheauthor’sattitudetowardsthewayofreadingslowly?__________A.DesperateB.NeutralC.PositiveD.Indifferent
WithonlinecoursesanyonecangainknowledgeinanyfieldofinterestforfreE.AllyouneedisacomputerlaptoporSmartphoneinternetconnectionandaself-madeschedulE.YoucanevengetacertificateoncompletingthecoursE.UdemyItsgoalistopromotetheworldofeducationbyenablinganyonetolearnonlinE.Itseekstodramaticallychangeeducationbyinvitingmillionsofexpertsworldwidetoteachandsharewhattheyknow.Whetheryouwanttolearnexcelbusinessacademicstheartshealthmusicortechnologythereisacomprehensivecourseforyou.Seemoreathttps://udemy.comiTunesUIfyou’reastudentwhousesAppledevicesyouwillbehappytoknowthatyouhaveaccesstoiTunesUwhichgivesyouaccesstodifferenteducationalcoursesfromallleadinguniversitiesforfree!DidyoudreamofstudyingatMITOxfordYaleorCambridge?ThisisyourchancetolearnvarioussubjectsfromthebestcollegesanduniversitiesintheworlD.Learnmoreathttps://iTunesU.comSkillfeedIfyouarelookingtolearninganewskillorimprovingonyourskillsinPhotoshoporHTMLitoffersunlimitedaccesstohigh-qualityvideocoursesfromaworldwidecommunityofinstructors.Youhaveamonth’sfreetrialafterwhichyouwillpayamonthlyfeetogainunlimitedaccesstoallcourses.Seemoreathttps://skillfeeD.comAcademicEarthIthaslinkedtoover750onlinecoursesand8500individualonlinelecturesgivingstudentsofallagesaccesstocollegecoursestheymayotherwiseneverexperiencE.Whetherlearningexistingcourseworkorlearningforthesakeoflearninganyonehasthefreedomtolearnattheirownpacefromworld-famousexpertswithoutbeingchargedmorE.Learnmoreathttp://academicearth.comUCBerkeleyItofferscoursesinbioengineeringJapaneselegalstudiesandpublichealth.Sincetheyarerecordingsofactuallecturestheylacklecturenotesandextramaterials.HowevereachcoursehasaudiorecordingsoflecturesviaiTunesorvideorecordingsoflecturesviaYouTubE.Learnmoreathttps://ucberkeley.com21.LearnerswhochooseSkillfeedneedto________.A.equipthemselveswiththeabilitytousethecomputerB.paysomefeeiftheywanttocontinueafteramonthC.havesomeknowledgeofthedesignofwebsiteD.learntouploadtheirownhigh-qualityvideo22.WecanlearnfromthepassagethatAcademicEarth________.A.chargeslearnersnothingforanycourseB.hasmanylecturesgivenby8500lecturersC.providescollegecoursesmainlytoyoungmenD.offerscollegecoursesatthelearners’convenience23.IfyouwanttoimproveyourskillofJapaneselanguageyoucanvisit________.A.https://skillfeeD.comB.https://ucberkeley.comC.https://udemy.comD.https://iTunesU.com
Mars火星appearstobeflowingwithsmallstreamsofsaltywateratleastinthesummerscientistsreportedMonday.Itsuggeststhat.itwouldbepossiblefortheretobelifetodayonMarsNASA'ssciencemissionchiefJohnGrunsfeldsaidatanewsconferenceonSeptember282015.Thestreamsareabout12to15feetwideand300feetormorelongscientistssaiD.Whatwe'redealingwithiswetsoil.thinlayersofwetsoilnotstandingwatersaidAifredMcEwenoftheUniversityofArizonaatTueson!theprincipalscientistfortheMarsReconnaissanceOrbiter'shigh-resolutionimagingexperiment.BecauseliquidwaterisessentialtolifethefindingscouldhavemajorimplicationsforthepossibilityofMartianlifE.Theresearcherssaidfurtherexplorationisneededtodeterminewhethermicroscopiclifeexistsontheplanet.ThepresenceofliquidwatercouldalsomakelifeeasierforastronautsvisitingorlivingonMars.Watercouldbeusedfordrinkingandforcreatingoxygenandrocketfuel.NASA'sgoalistosendhumansthereinthe2030s.Theevidenceofflowingwaterconsistslargelyofdarknarrowstreaks条痕onthesurfacethattendtoappearandgrowduringthewarmestMartianmonthsandfadetherestoftheyear.Marsisextremelycoldeveninsummerandthestreaksareinplaceswherethetemperatureisaslowasminus10degreesFahrenheit.ButsaltcanlowerthefreezingpointofwaterandmelticE.Thesourceofthewaterisamystery.ScientistsnoteditcouldbemeltingicE.Itcouldbeanundergroundaquiferwhichisrockorsandthatcanholdwater.ItispossiblywatervaporfromthethinMartianatmosphereOritmaybeacombinationMichaelMeyerleadscientistforNASA'sMarsexplorationprogramsaidtheonlydefinitivewayfornowtodeterminewhetherthere'slifeonMarsistocollectrocksandsoilforanalysisonEarth-somethingaU.S.landersetforlift-offin2020willdo.28.Whatwouldbethebesttitleforthetext?'A.StreamsofWaterSpottedonMarsB.AstronautswillLandonMarsC.NASA'sMarsExplorationProgramD.A.BreakthroughintheExplorationofMars29.AccordingtoJohnGrunsfeldthereseemstobeonMars.A.saltywaterB.standingwaterC.rocketfuelD.humanbeings30.ScientistsareuncertainabouttheofthewateronMars.A.stateB.sourceC.temperatureD.taste31.WhatmatterstotheexistenceofliquidwateronMars?A.Thedistancefromthesun.B.ThefavorableclimatE.C.ThegravityoftheearthD.Thesaltinit.
Beforethegrasshasthickenedontheroadsideverges边缘andleaveshavestartedgrowingonthetreesisaperfecttimetolookaroundandseejusthowdirtyBritainhasbecomE.Thepavementsarestained污染withchewinggumthathasbeenspatoutandthegutters排水沟arefullofdiscardedfastfoodcartons纸板箱.YearsagoIremembertravellingabroadandbeingsaddenedbytheplasticbagsdiscardedbottlesandsoilednappiesattheedgeofeveryroaD.NowadaysBritainseemstolookatleastasbaD.Whathasgonewrong?TheproblemisthattherubbishcreatedbyourincreasinglymobileliveslastsalotlongerthanbeforE.Ifitisnotclearedupandproperlythrownawayitstaysintheundergrowthforyears;asemi-permanent半永久性的reminderofwhatatatty不整洁的littlecountrywehavenow.Firstlyitisestimatedthat10billionplasticbagshavebeengiventoshoppers.Thesewilltakeanythingfrom100to1000yearstorot.Howeveritisnotasifthereisnosolutiontothis.A.fewyearsagotheIrishgovernmentintroducedataxonnon-recyclablecarrierbagsandinthreemonthsreducedtheiruseby90%.WhenhewasaministerMichaelMeacherattemptedtointroduceasimilararrangementinBritain.TheplasticsindustryprotestedofcoursE.Howevertheyneednothavebothered;theideawaskilledbeforeitcoulddrawbreathleavingsupermarketsfreetogiveawayplasticbags.Whatisclearlynecessaryrightnowissomesortofcombinedinitiative首创精神bothindividualandcollective集体beforeitistoolatE.Thealternativeistocontinueslidingdownhilluntilwehaveacountrythatlookslikeavastmunicipalrubbishtip.Wemaywellbeatthetippingpoint.Yetweknowthatpeoplerespondtotheirenvironment.Ifthingsaroundthemarecleanandtidypeoplebehavecleanlyandtidily.Iftheyaresurroundedbysqualor肮脏的theybehavesqualidly.NowmuchofBritainlooksprettysqualid卑劣的.Whatwillitlooklikeinfiveyears?12.Accordingtothewriterthingsusedtobe.A.badabroaD.B.goodabroaD.C.betterabroaD.D.worsebutnowthingsarebetterabroaD.13.WhenMichaelMeacherwasaministerhe.A.followedtheIrishexamplewithataxonplasticbags.B.triedtofollowtheIrishexamplewithataxonplasticbags.C.madenoattempttofollowtheIrishexamplewithataxonplasticbags.D.hadproblemswiththeplasticsindustrywhoweren'tbotheredaboutthetax.14.Thewriterthinks.A.itistoolatetodoanythingtosolvetheproblem.B.weareatthetippingpointtosolvetheproblem.C.thereisnoalternativetosolvetheproblem.D.weneedtoworktogethertosolvetheproblem.15.Whatcanbeinferredfromthewriter’sopinion?A.peoplearesqualidandtheybehavesqualidly.B.peoplebehaveaccordingtowhattheyseearoundthem.C.peoplearecleanandtidyandbehavecleanlyandtidily.D.peoplearelikeavastmunicipalrubbishtip.
Atelescope望远镜calledGaiaisbeingdesignedbyastronomersinEuropeanditcouldn’tbemoredifferentfromPan-STARRSwhichisanothertelescopebeingdesigneD.WhilePan-STARRSwillbelookingforasteroids小行星andcometsheadedforEarthGaiawillbelookingatourentiregalaxy银河系.GaiaisdesignedtodrawamapoftheMilkyWayourhomegalaxy.JustasamapofyourtowngivesyouapictureofwherethingsarelocatedGaia’smapofthegalaxywilltellastronomerswherethestarsarE.OverfiveyearsGaiawillobserve观察aboutabillionstarsandotherobjectsinourgalaxy.Eachobjectwillbeobservedabout70times.Gaiawillbesentintospaceconnectedtoarocket.Itcontainstwotelescopeseachfocusedatadifferentangle角度.ThesetwotelescopesactlikeGaia’seyes.Thereasonwhyhumanscanseethingsin3Disthatwehavetwoeyesfocusedonthesameobjectatslightlydifferentangles.ByusingtwotelescopeslikeeyesGaiacanproducethefirst3Dmapofthepositionsofthestarsitviews.Gaiawhichistobesentintospacein2011willbeapowerfultelescopE.IfyouweretouseitonEarthforexampleyoucouldstand600milesawayfromyourbestfriendsandstillgetaclearpictureoftheirhair.Gaiaisoneofmorethanadozentelescopesbeingdesignedbyscientistsrightnow.Thenextgenerationoftelescopeswillrevealnewpartsofouruniversethatwillseemsurprising.Theuniversewithallitsplanetsstarsandotherstrangeobjectsisapuzzlewithpiecesthatwecanseebyusingpowerfultelescopes.28.HowmanydifferentanglescanGaiafocusateachtime?A.2.B.3.C.4.D.5.29.ThemaptobedrawnbyGaia______.A.canshoweverybuildingonEarthB.canshowyouwhereyourtownisC.willjustshowthestarsaroundEarthD.willshowwherethestarsareinourhomegalaxy30.What’sParagraph4mainlyabout?A.WhatGaiawilldoinspacE.B.WhenGaiawillstarttowork.C.HowpowerfulGaiawillbE.D.WhatGaiawilldotoEarth.31.Theunderlinedsentenceinthelastparagraphsuggeststhatthenextgenerationoftelescopes_______.A.seemverysurprisingtoscientistsB.willnotbeputintouseinashorttimeC.willjustlookatnewthingsinuniverseD.willbemorepowerfulthantheoldgenerations
WalkthroughtheAmazonrainforesttodayandyouwillfinditsteamywarmdampandthick.Butifyouhadbeentherearound15000yearsagoduringthelasticeagewouldithavebeenthesame?Formorethan30yearsscientistshavebeenarguingabouthowrainforestsmighthavereactedtothecolddryclimateoftheiceagesbuttillnownoonehasreachedasatisfyinganswer.RainforestsliketheAmazonareimportantformoppingupCO2fromtheatmosphereandhelpingtosolveglobalwarming.CurrentlythetreesintheAmazontakeinaround500milliontonsofCO2eachyear:equaltothetotalamountofCO2givenoffintheUKeachyear.ButhowwilltheAmazonreacttothefutureclimatechange?IfitgetsdrierwillitsurviveandcontinuetodrawdownCO2?Scientistshopethattheywillbeabletolearninadvancehowtherainforestwillmanageinthefuturebyunderstandinghowrainforestsreactedtoclimatechangeinthepast.Unfortunatelycollectinginformationisincrediblydifficult.Tostudythepastclimatescientistsneedtolookatfossilizedpollen花粉keptinlakemudGoingbacktothelasticeagemeansdrillingdownintolakesediments沉淀物whichrequiresspecializedequipmentandheavymachinery.Thereareveryfewroadsandpathsorplacestolandhelicoptersandaeroplanes.Riverstendtobetheeasiestwaytoentertheforestbutthisstillleavesvastareasbetweentheriverscompletelyunsampled未取样.SofaronlyahandfulofcoreshavebeendrilledthatgobacktothelasticeageandnoneofthemprovideenoughinformationtoprovehowtheAmazonforestreactstoclimatechangE.25.Howdoscientistsstudythepastclimatechange?A.BypredictingtheclimatechangeinthefuturE.B.Bydrillingdowndeepintolandsediments.C.ByanalyzingfossilizedpolleninlakemuD.D.BytakingsamplesfromriversintheAmazon.26.Whyisitdifficulttocollectinformationaboutthepastclimatechange?A.Becausescientistscan'tfindproperequipmentandmachinery.B.Becauseitisverydifficulttoobtaincompletesamples.C.BecausehelicoptersandaeroplaneshavenoplacetolanD.D.Becausenoneofthecoresprovideanyinformation.27.Whereisthepassagemostprobablytakenfrom?A.A.medicaljournal.B.A.newsreportC.A.travelbrochurE.D.A.sciencemagazinE.28.Thebesttitleforthetextmaybe.A.SecretsoftheRainforestB.ClimatesoftheAmazonC.TheHistoryoftheRainforestD.ChangesoftheRainforest
Thenumberofpeoplehidingtheiridentitywhilesurfingthewebhasriseninthepastyear.ResearchshowsthatthelevelofencryptedinternetactivityhasrisendramaticallyacrosstheworldsuggestingthatmillionsofpeoplehavebeguntousesoftwarethathideswhotheyarewhileaccessingtheweB.AccordingtoSandvinethetechnologynetworkingcompanyhiddeninternettrafficinpeakhoursinEuropehasbeenupto6.1percentofallwebactivitiescomparedwithabout1.5percentayearearlier.InNorthAmericaencryptedtrafficwentupto3.8percentfrom2.3percentayearearlierwhileinLatinAmericaitjumpedtoalmost10.4percentfrom1.8percent.Expertssaidthatthechangesinonlinebehaviorweretheresultofexposure曝光aboutwidespreadinternetspyingbyintelligenceagenciessuchasthatexposedbyEdwardSnowdentheUSNationalSecurityAgencywhistleblower.ItwillbeinterestingtoseehowthesetrendsdevelopsaidErnestoVanderSarthepen-nameusedbytheeditor-in-chiefofTorrentfreak.comthewebsitethatfirstreportedthefigures.Inanycaseit’sclearthatinternetservicesandtheirusersarebecomingmoreawareoftheirprivacyonlinewhichisgenerallyagooddevelopment.LastweekSirTimBerners-LeetheBritishinventorofthewebdefendedtherightofagenciestospyontheinternetforlawenforcement强制实施.HesaidWehavetofigureouthowtobalancethatagainstrights.28.ThewordencryptedinParagraphTwohastheclosestmeaningwith______.A.falseB.hiddenC.cheatingD.changed29.Whichareahasseenthelargestriseinencryptedinternetactivity?A.EuropE.B.NorthAmericA.C.LatinAmericA.D.EasternAsiA.30.Whydomorepeoplehidetheiridentitywhilesurfingtheweb?A.Tocheatothers.B.Tohavemorefun.C.Tofollowthefashion.D.Topreventtheirprivacybeingspiedon.31.What’sSirTimBerners-Lee’sopiniononsomeagencies’spyingontheinternet?A.It’sillegal.B.It’stotallyright.C.It’sagainsthumanrights.D.It’sacceptabletosomedegreE.
Mostcellphonecompaniesdesignmodelsespeciallyforkids.Butparentsareusuallytheonesbuyingthephones.AccordingtoaJuly2012study56%ofparentsofchildrenaged8to12havegiventheirchildrenacellphonE.ThenumbergoesupwithagE.Thestudyjustproveswhatmanypeoplealreadyguessed:manykidsifnotmosthavetheirowncellphones.Accordingtoarecentsurvey12isthemagicnumber.ItisthemostcommonageforkidstogettheirfirstcellphonE.But13%ofchildrenaged6to10alreadyhaveonE.Peoplewhoareforkids’usingcellphonesincludingmanyparentsnoticethatcellphoneshelpkidskeepintouchwiththeirfriendsandfamilies.Theybelievethatcellphonesareanimportanttoolinadangeroussituation.Kidscanreachtheirparentsatalltimes.Andsomepeoplesayhavingacellphonehelpsteachkidstoberesponsible.Somecellphonesdesignedforkidscanbesettoonlyworkwhenparentsapprove同意.What’stheharminthat?Butotherpeopleareworriedaboutthehealthandsafetyeffectsofkids’cellphones.TheybelievethatkidswithcellphoneswillspendlesstimeplayingoutsidewithfriendsandthatsendingtextmessagesormakingphonecallswhiledoinghomeworkmakesitdifficultforkidstoconcentratE.Theysaythatkidsarespendingtoomuchtimetextinginsteadoftalkingtoeachother.OurbrainsdevelopedtocommunicatefacetofacesaysGarySmallateacherattheUCLASchoolofMedicineinCaliforniA.Alotofthisislostwithtexting.Anotherworryiscyberbullying网络欺凌whichisontheriseasmorekidsusee-mailandtextmessagestocommunicatE.Andsomeexpertsareworriedaboutpossiblehealthrisks.TheyworrythatenergywavesproducedbycellphonescouldbeharmfultoyoungpeoplE.TobesafeparentsshouldnotletthemtalklongonthephonE.16.Bymentioningtheresultsofarecentstudytheauthorwantstoshowthat.A.notallcellphonesmeetkids’needsB.manykidshavetheirowncellphonesC.notallparentsbuytheirkidscellphonesD.kidswhoareoldenoughshouldhavecellphones17.Paragraph3mainlytalksabout.A.howtomakekidsbecomeresponsibleB.thepopularityofcellphonesamongkidsC.howkidscanreachtheirfriendsandfamiliesD.supporters’opinionsonkids’usingcellphones18.Cellphonescanbebadforkidsbecause.A.kidsreducepersonalcommunicationB.kidsspendtoomuchtimeplayinggamesC.kidsdon’twanttodotheirhomeworkathomeD.cellphoneshaveabadinfluenceonkids’brains19.What’sGarySmall’sattitudetowardstexting?A.Heisuncertainaboutit.B.Heknowslittleaboutit.C.Heisagainstit.D.Heisfondofit.20.Wecanlearnfromthetextthat.A.there’recellphonesspeciallydesignedforkidsonthemarketB.kidsaged6to10havemorecellphonesthankidsatotheragesC.kidswhohavecellphoneshavefewerfriendsthanthosewhodon’tD.cellphoneshelpkidsimprovetheirrelationshipswithfriendsandfamilies
About97%oftheworld’swaterissaltyandisfoundinouroceansandseas.Butaswecan’tdrinkseawaterhowcanitbeimportant?Everypartofourseasandoceanscontainsanamazingnumberofanimalsandfishthatliveatdifferentoceandepths.MostofthedifferentspeciesofanimalsandfishdependonsimpleplantsfortheirfooD.Thesesimpleplantscalledalgae海藻driftnearthesurfaceoftheoceanandusesunlighttoturncarbondioxideandwaterintofoodandoxygen.InfactalgaeproduceoverhalfoftheoxygenpeoplebreathE.Howimportantseawateris!Eachplantoranimalinourseasandoceansisanimportantlinkinafoodchain.Thealgaeareeateninlargeamountsbymicroscopicanimalswhichareinturnconsumedbylargeranimals.ThesefoodchainsaredelicatelybalanceD.Thebadnewsaboutthefoodchainsintheoceansisthattheyareunderthreatbecauseofman.Peopleoncethoughtthattheoceansweresobigthatitdidn’tmatterifwedumpedrubbishintothemorcaughthugequantitiesoffishandwhalesforfooD.Butwenowknowthisisnottrueandfishstocksintheoceanshavestartedtodrop.Thankfullytheworldistakingstepstoprotectthefutureofouroceansbyintroducinginternationalagreementstoprotectmarine海的海产的habitats.Mostcountrieshaveintroducedfishingrestrictions限制约束toprotectfishstocksintheoceansandnewtechniquesarebeingpioneeredtocopewithpollution.FinallytheimportanceofprotectingoceansisbeingmadeknowntomorepeoplE.ThisisjustthebeginningofalongprocesstoprotecttheoceansforourfuturE.Wedependontheoceansforfishwhichareanimportantpartofthehumandiet.Howimportantseawateris!31.Whichofthefollowingistheproperorderofthefoodchain?A.smallanimals→algae→microscopicanimals→largeanimals→manB.algae→microscopicanimals→largeanimals→largeranimals→manC.smallanimals→algae→largeanimals→microscopicanimals→manD.microscopicanimals→algae→largeanimals→largeranimals→man32.Peopleusedtothinkthattherubbishthrownintothesea________.A.wouldn’tharmthefishintheseaB.wouldchangethebalanceofthefoodchainC.wouldbebrokendownintheseaD.wouldn’tdomuchharmtothesea33.Fromthepassagewelearnthat_________.A.mostfishandseaanimalsliveatthesurfaceoftheseasB.itisverydifficulttobreakthebalanceofafoodchainC.excessivefishinghascausedthedecreaseinfishstockD.itwon’tbelongbeforetheproblemsconcerningoceanswillbesolved34.WhichofthefollowingisNOTawaybeingusedtoprotectoceans?A.Theuseofinternationalagreements.B.Forbiddingfishingtoprotectfishstocks.C.Theuseofnewtechniques.D.Raisingpeople’sawarenessoftheneedtoprotectoceans.35.Whatwouldbethebesttitleofthepassage?A.Theimportanceofseawater.B.Lifeintheoceans.C.Howtoprotectfoodchains.D.Howtodealwithseawaterpollution.
Wecertainlyknowthatouruniverseexistsbutthisknowledgealonehasnotsatisfiedhuman’slongsearchforfurtherunderstanding.Ourcuriosityhasledustoquestionourplaceinthisuniverseandeventheplaceoftheuniverseitself.Throughout贯穿timewehaveaskedourselvesthesequestions:Howdidouruniversebegin?Howoldisouruniverse?Howdidmattercometoexist?Obviouslythesearenotsimplequestions.Throughoutourbriefhistoryonthisplanetmuchtimeandefforthasbeenspentlookingforsomeclue线索.Yetafterallthisenergyhasbeenusedupmuchofwhatweknowisstillonlyspeculation推测.HoweverwehavecomealongwayfromthebeginningsofthestudyofcosmologyandtheoriginsoftheuniversE.Throughtheunderstandingsofmodernsciencewehavebeenabletoprovidefirmtheoriesforsomeoftheanswersthatweoncecalledspeculation.Truetothenatureofsciencemostoftheseanswershaveonlyledtomoreinterestingandcomplex复杂的questions.Itwillbeimpossibletodealwithallofthequestionsaboutthecreationofeverythingthatweknowasrealityinthisshortpassagebutanattemptwillbemadetodealwithcertainbasicquestionsofourbeing.Itwillbeimportanttokeepinmindthatallofthisinformationisoftenbeingquestionedandreevaluated再评估inordertounderstandtheuniversemoreclearly.ForourpurposesthroughanexaminationofwhatisknownabouttheBigBangitselfandtheageoftheuniversewebelievethatwecanbegintoanswerseveralofthesekeyquestions.54.Wecaninferfromthefirstparagraphthat________.A.humanbeingsneedn’thavetriedtoknowabouttheuniverseB.humanbeingshavenoabilitytoknowabouttheuniverseatallC.CuriosityhashelpedhumanbeingstoknowtheuniversewellD.Itisdifficultforhumanbeingstoknowtheuniverseverywell55.Accordingtothepassage________helpspeopleanswersomecomplexquestions.A.curiosityB.scienceC.speculationD.history56.AccordingtothepassagewhichofthefollowingstatementsisNOTtrue?A.Wewillfindtheanswerstoallthequestionsabouttheuniversesoon.B.MuchworkneedstobedonetoknowmoreabouttheuniversE.C.SomeofthespeculationsabouttheuniversehaveprovedtruE.D.TheBigBangisaveryimportanttheorytoknowabouttheuniversE.
GettingmorefollowersissomethingweusuallyassociatewithsocialmediaormicromessagingappsButsoonwecouldallhaveanewtypeoffollower-aroboticonE.DozensofrobotsandtechnologyfansgatheredinBostonUSearlierthismonthfortheRoboBusinessconferencE.ThelatestdevelopmentsintheworldofroboticswereshowntothepublicandthistimethetrendwasrobotsfollowingpeoplE.Perhapsthemostexcitingdevelopmentonshowwastheabilityofdrones无人机tofollowyoufromtheairactingasyourownpersonalcameramanorphotographer.Oneexampleis3-DRobotics’Iris+dronedevelopedbyaUS-basedcompany.Thedroneisfittedwithcamerasandhasafollowmefunction.ItconnectswithyourGPS-enabledAndroiddevice设备likeamobilephonE.Thenitfliesandfollowsyouaroundshootingactionfootage影片ofyoufromabovE.Thesoft-wareinthedronemakessurethatyou’realwaysinthecenteroftheframE.Itcankeepworkingfor15minutesaslongastherearen’ttoomanytreesforittocrashinto.Thiscouldbeexcitingforanyonewholovesactionsportsorwantstobethestaroftheirownshortfilm.Butwhatifyouwanttobeoneofthosecelebritieswhohavehelperscarryingalltheirbagsanddoingalltheirchores?A.robotcalledBudgeecanhelp.Budgeemadeby5ElementsRoboticsisliterallyabasketonwheels.ItismainlydesignedtohelpelderlyanddisabledpeoplE.Itisalsoagoodchoiceforanyonewhodoesn’thaveenougharmsforgrocerybagWiredmagazinereporteD.Itcancarryupto22.7kgofitems.TomakeBudgeefollowthemitsownerwillhavetowearasmalldeviceanduseanapptosetthedistancebetweenthemselvesandtherobot.Budgeeevensendsatextmessagewhenitcan’tkeepupwithitsowner.Iwantyoutolookattherobotlikehe’syourbuddyhe’syourfrienD.There’sarelationshipyoudevelopwiththerobotWendyRobertsCEOof5ElementsRoboticstoldgigaom.com.Itmightnotbequitethesameasroboticassistantswe’veseeninmoviessuchasDisney’sWall-Ewhererobotscaterfor满足oureveryneedbutthatideadoesn’tseemquitesofar-fetched不着边际的now.33.ThedronedevelopedbyaUS-basedcompanycan.A.decidewhotoputinthecenteroftheframeB.flyaroundyouandtakevideosfromaboveC.beusedtotakepicturesandmakephonecallsD.keepworkingfor15minutesinanyconditions34.AccordingtothearticleBudgeeismostlikelytobetargetedat.A.staffinsupermarketsB.elderlyanddisabledpeopleC.thosewholoveactionsportsD.celebritieswhoneedaclosebuddy35.Themainpurposeofthearticleisto.A.urgepeopletobuythedroneandBudgeeB.tellthereaderabouttwonewtypesofrobotsC.callonpeopletodeveloprelationshipswithrobotsD.analyzewhythetwotypesofrobotscanleadatrend
OneanimalwhichisstillalivebuthasalmostdisappearedfromtheworldistheChineseriverdolphinorbaiji.ThebaijiisabeautifulanimalwithagracefulbodyandalongnosE.Itisblue-greywithawhiteundersideweighsbetween100and160kilogrammesandcangrowuptoeightfeetlong.ItlivesinthemiddleandlowerpartsoftheYangtzeRiver.Mostdolphinsliveintheseasothebaijiisveryunusual.ItisoneofonlyfivekindsofriverdolphinsintheworlD.Inthepastthereweremanystoriesaboutthebaiji.Onestorysaidthatthedolphinwasreallyabeautifulprincesswhohaddrownedintheriver.Anothersaiditwasakindofhorsethatcouldgallop急速行进acrosswatercarryingGodonitsback.Sadlythesituationtodayisverydifferent.ManymillionsofpeopleliveintheYangtzeRiverBasinandtheriverisbusynoisyandpolluteD.Thebaijiisalmostblindandmovesaroundusingsounds.WithsomanyboatsandpeopleusingtherivertheanimalscannotfindtheirwayarounD.Theyareunabletofindfoodorfindeachother.Yearbyyearthenumberofbaijiintheriverbecomessmallerandsmaller.Alotofworkisbeingdonetohelpthebaiji.OnesectionoftheriverhasbeenmadeintoakindofnatureparkwherethebajijcanbesafE.FishermenworktogetherwithscientistsandtellthemwhentheyseeabajijoriftheyfindaninjuredonE.Injuredanimalsaretakentoaresearchcenterandnursedbacktobehealthy.Howeverinspiteofthesemeasuresscientistsestimate估计thatthemumberofthebajijstillaliveintherivermaybelessthan100.Ifthingscontinueastheyarethelovelycreaturewilldisappearinthenext25years.33.WhichdescriptionaboutthebaijiisWRONG?A.IthasalreadydiedoutfromtheworlD.B.Itisblue-greywithawhiteundersidE.C.ItlivesinthemiddleandlowerpartsoftheYangtzeRiver.D.Itisoneofonly5kindsofriverdolphinsintheworlD.34.ThereasonswhythebaijiisdisappearingarethefollowingEXCEPT.A.manymillionsofpeopleliveintheYangtzeRiverBasinmakingtherenoisyandpollutedB.thebaijiisblindbecauseofthepollutionandcan’tfindthewayaroundC.theboatsandpeoplearenoisymakingtheanimalscannotfindtheirwayaroundbysoundsD.theyareunabletofindfoodorfindeachotherbysoundssincetheriverisnoisy35.Whatcanwelearnfromthepassage?A.PeopleliketoliveintheYangtzeRiverBasinwithanimalsswimmingintheriver.B.Theanimalsdyingoutarebeinghuntedbyhumanbeings.C.Peoplecantakesomemeasurestosavetheanimalsdyingout.D.Therearemorebajijlivinginanatureparknow.
Whoknowsaboutsleep?Astronauts宇航员.Theyhaveto.Theirbodiesarecutofffromtheoutsideworldthatreminds提醒uswhattimeitis.Butactuallyit'sevenworsethanthat.AnastronautreportedinhisdiarythathewaslikelytomakemistakesondaysfollowinganunusuallylatebedtimE.SoNASAstarteddoingsomeseriousresearch.Theyquicklyrealizedthatwe'reaslavetotheoutsideworlD.Withoutlightanddarknesswe'reunabletoregulate管理sleeptimes.Becauseofmoderntechnologywe'realllivingmorelikeastronautsnow.Lightisnolongerafunction功能ofthesunbutofalways-onindoorlightsTVandcomputerscreens.Temperaturenolongerfollowsacycleofcoolingatnightandwarmingduringtheday.IsitanywonderthatathirdofAmericanshavesleepproblems?Maybeyouthinkthisdoesn'taffectyou—oratleastnotmuch.You'rewrong.Researchdoneonnon-astronautshasshownthesamething.Aftertwoweeksofsixhoursofsleepanight;you'redrunk.Bytheendoftwoweeksthesix-hoursleepersbehavedasbadlyasthosewhohadn'tsleptfor24hours.Butwhatdidtheysaywhenaskedhowtheyfelt?It'snotaffectingmE.SoifyouareperformingpoorlybecauseofsleepproblemsyoumayhavenoideA.Thisisarealproblem.SowhatanswersdidNASAcomeupwith?TakeanhourtocalmdownbeforebeD.Yesyou'rebusy.Butyourtimeisnotmorevaluablethananastronaut's.KeepyourbedroomdarkcoolandfreefromnoisE.Evenifyouthinkthelightdoesn'taffectyouorthenoiseisn'tthatbaditcanstillaffectsleepquality.Anotheradvice:forgetthealarmclock闹钟inthemorning;setanalarmtoremindyoutogotobedatnight.Whenitgoesofffinishupanyworkonthecomputerandturnoffanyunnecessarylights.Thispreventsyoufromcheatingyourselfonsleepandallowsyoutowakeupnaturally.32.WhatdidNASAfindaboutpeople’ssleep?A.Ittakesalongtimetodevelopregularsleeptimes.B.It’sstronglyinfluencedbytheoutsideworlD.C.Itremainsuntouchedbyoutsideinfluences.D.It’shardtochangeone’ssleephabits.33.Thebiggestproblemofthosewhohaven’tenoughsleepliesinthefactthat.A.theycan’tfallasleepwithoutthelightsonB.theydon’tknowwhethertheysleepwellC.theyrefusetoregulatetheirsleeptimesD.theygettoodrunktosleepwell34.Whatdoestheunderlinedsentenceinthetextmean?A.YoushouldmakefulluseofyourtimE.B.Youcanfindthetimetogetreadytosleep.C.Youcansleeplatertofinishyourworkfirst.D.Youshouldlearnfromastronauts’wayofsleep.35.What’stheadviceonthealarmclock?A.Useittoremindyoutosleep.B.PutitfarawayfromyourbeD.C.Getupimmediatelywhenitrings.D.Paynoattentiontoitwhenitrings.
TheUNweatheragencywarnedonTuesdaytherewasagoodchanceofanElNinoclimatephenomenoninthePacificOceanthisyearbringingdroughts干旱andheavyrainfalltotherestoftheworldTheWorldMeteorological气象的OrganizationWMOsaiditsmodelingsuggestedafairlylargepotentialforanElNinomostlikelybytheendofthesecondquarterof2016.TheElNinophenomenonoccurseverytwotosevenyearswhenthetradewindsthatcirculatesurfacewaterinthetropical熟带的Pacificstarttoweaken.WMOpointedoutTuesdaythatsincelastDecembertradewindshadweakenedandtherehadbeenasignificantwarmingofthewatersbelowthesurfaceinthecentralPacifiC.WhilethereisnoguaranteethissituationwillleadtoanElNinoeventthelongerthetradewindsremainweakenedandsubsurfacetemperaturesstaysignificantlywarmerthanaveragethehigherchancesareitsaiD.TwothirdsofclimatemodelspredictedthatthephenomenonwouldbeginsometimebetweenJuneandAugustwithone-fifthsuggestingitcouldstartasearlyasMayandtheremainingpredictingnoElNinothisyearitsaiD.ItisoftenfollowedbyareturnswingofLaNinawhichischaracterizedbyunusuallycooloceansurfacetemperaturesinthecentralandeasterntropicalPacifiC.ElNinohasanimportantwarmingeffectonglobalaveragetemperaturesJarraudcautionedstressingthatcombinedwithwarmingfromgreenhousegasessucheventshadthepotentialtocauseasharpriseinglobalaveragetemperature.33.Itcanbeinferredfromthefirsttwoparagraphsthat-'A.aweatheragencywarnedanElNinowouldappearonTuesdayB.WMOshowedanElNinowouldprobablyhappenbyJunein2016C.anElNinowouldbringheavyrainfalltothePacificOceanD.ThephenomenonofElNinohappenseverysevenyears34.WhatdoestheunderlinedphrasethissituationinParagraph4referto?A.CooloceansurfacetemperaturesinthecentralandeasterntropicalPacifiC.B.A.significantwarmingofthewatersbelowthesurfaceinthecentralPacifiC.C.TradewindsthatcirculatesurfacewaterinthePacifiC.D.HeavyrainfallindifferentareasallovertheworlD.35.AccordingtothetextwhatmightbethepercentageofnoElNinothisyear?A.13%.B.20%.C.67%.D.87%.
SeeacellphonecoverthatyoulikeonTaobao?Forgetaboutplacinganorderpayingthebillonlineandwaitingfordaysforittobedeliveredtoyou.Inthenearfutureyou'llbeabletogetitinminutesjustbyhittingprintonyourcomputer.YoumightfindithardtobelievethatyoucouldactuallyprintanobjectlikeyouwouldapicturE.Butitisnotthathardtounderstandhowitwouldwork.Justasatraditionalprinterspraysinkontopaperlinebylinemodern3DprintersspreadmaterialontoasurfacelayerbylayerfromthebottomtothetopgraduallybuildingupashapE.Insteadofinkthematerialsthe3Dprinterusesaremainlyplasticresinandcertainmetals.Thethinnereachlayeris—fromamillimetretolessthanthewidthofahair—thesmootherandfinertheobjectwillbE.Thismaysoundlikeacompletelynewtechnologybutthetruthisthat3Dprintinghasbeenaroundsincethelate1980s.Backthenitwasbarelyaffordableformostpeoplesofewknewaboutit.Lastyearthoughsawabigchangeinthe3Dprintingindustry—printersbecamemuchcheaper.Forexample10yearsagoadesktop3Dprintermighthavecost￡20000whilenowtheycostonlyabout￡1000accordingtotheBBC.Takenoutofthefactoryandintroducedtomorediverseandcommonuses3Dprintingcancreatejustaboutanythingyoucanthinkof—flutesbikinisjewelryaircraftpartsandevenhumanorgans.InfactscientistsfromCornellUniversityinNewYorkhavejustmadeanartificialearusinga3DprinteraccordingtoScienceDaily.ThefakeearlooksandactsexactlylikeanaturalonE.Howeveras3Dprintingbecomesmorecommonitmaybringaboutcertainproblems—suchaspiracy.Onceyoucandownloadacoffeemakerorprintoutanewsetofkitchenutensilsonyourpersonal3Dprinterwhowillvisitaretailstoreagainanexpertin3DprintingtoldForbesNews.Evenmorefrighteningwhatifanyoneintheworldcouldusea3Dprintertoprintoutafullyfunctioninggun?8.Accordingtothearticleinthefuturethe3Dprintingtechnologywill_______.A.enablepeopletomakebetterpurchasesonlineB.changethewaywemakemanyproductsC.beappliedaswidelyinourdailylifeascomputersD.shortenthetimeittakesforpeopletogetwhattheybuyonline9.Whathappenedinthe3Dprintingindustrylastyear?A.The3Dprintingtechnologywastakenoutofthefactory.B.The3Dprintingtechnologybegantobeusedinvariousfields.C.The3DprinterwasusedformedicaltreatmentforthefirsttimE.D.The3Dprinterbecamemoreaffordableforconsumers.10.Howisthelastparagraphdeveloped?A.Bygivingexamples.B.Bymakingcomparisons.C.Byanalyzingthecauseandeffect.D.Bypresentingresearchfindings.11.Whatisthebesttitleofthepassage?A.GreatDemandfor3DPrintersB.TechnologyintheFutureC.OnlineShoppingDisappearingD.PrintingoutEverything
Areyousometimesalittletiredandsleepyintheearlyafternoon?Manypeoplefeelthiswayafterlunch.Theymaythinkthateatinglunchisthecauseofthesleepiness.Orinsummertheymaythinkitistheheat.Howevertherealreasonliesinsidetheirbodies.Atthattime—abouteighthoursafteryouwakeup—yourbodytemperaturegoesdown.Thisiswhatmakesyouslowdownandfeelsleepy.Scientistshavetestedsleephabitsinexperimentswheretherewasnonightorday.Thepeopleintheseexperimentsalmostalwaysfollowedasimilarsleepingpattern.Theysleptforonelongperiodandthenforoneshortperiodabouteighthourslater.Inmanypartsoftheworldpeopletakenapsinthemiddleoftheday.Thisisespeciallytrueinwarmerclimateswheretheheatmakesworkdifficultintheearlyafternoon.Researchersarenowsayingthatnapsaregoodforeveryoneinanyclimate.Adailynapgivesoneamorerestedbodyandmindandthereforeisgoodforhealthingeneral.Incountrieswherenapsaretraditionalpeopleoftensufferlessfromproblemssuchasheartdisease.Manyworkingpeopleunfortunatelyhavenotimetotakenaps.Thoughdoctorsmayadvisetakingnapsemployersdonotallowit!Ifyoudohavethechancehoweverhereareafewtipsaboutmakingthemostofyournap.Rememberthatthebesttimetotakeanapisabouteighthoursafteryougetup.AshortsleeptoolateinthedaymayonlymakeyoufeelmoretiredandsleepyafterwarD.Thiscanalsohappenifyousleepfortoolong.Ifyoudonothaveenoughtimetryashortnap—eventenminutesofsleepcanbehelpful.33.Whydoyousometimesfeelsleepyintheearlyafternoon?A.Becauseyoueattoomuchforlunch.B.Becauseit’shotinsummer.C.Becauseyourbodytemperaturegoesdownatthattime.D.Becauseyoudidn’thaveagoodsleeplastnight.34.Whatcanwelearnaboutnapsaccordingtothelastparagraph?A.Allthepeopleinwarmerclimatestakenapsinthemiddleoftheday.B.Doctorsneedtotakenapswhileemployersdon’t.C.Ifyoutakenapseverydayyou’11neversufferfromheartdisease.D.Takingnapsregularlyisbeneficialtopeople’shealth.35.Whatcanweinferfromthepassage?A.Ifyougetupat630amyou’dbettertakeanapatabout130pm.B.Takinganapwheneveryouwantwilldogoodtoyourhealth.C.Youwillfeellesssleepyifyousleepforalongtime.D.You’11feelsleepyatregularintervals间隔.
Doyouknowwhatcouch-potatomeans?WellinAmericathewordisnowoftenuseD.YouseeinAmericamanypeopleoftenspendtheirfreetimesittingonasofawatchingTV.Astherearemanychannels频道tochoosetheTVcanbequiteinterestingandveryaddictive使人上瘾的.OnemaysitandwatchTVforhoursandhourswithoutstop!WellthesepeoplewhodonothingalldayexceptwatchTVarecalledcouch-potatoes.InAmericawhilewatchingTVmostoftensittingstillwitheyeslookingrightintotheTVset.AlsobecausethesepeopleareaddictivetoTVtheydon’ttakeexerciseandusuallygetveryfat.Soinmanywaysthesepeoplelooklikerealpotatoes!WellbecausetheylookfatandwatchTVonacouchtheyareallcalledcouch-potatoes.Nowyouknowwhatacouch-potatomeans.ThenexttimeifyouseesomeonewatchingTVtoolongjustsayWhatacouch-potato!21.Thewordcouch-potatoisoftenusedin______.A.ChinaB.AmericaC.FranceD.Germany22.Ifapersoniscalledacouch-potatoheorshe______.A.doesnothingalldayB.mustbeveryfatC.oftenwatchesTVinhisfreetimeD.oftenlistenstomusic23.Thepassagemainly主要tellsus______.A.howtowatchTVB.whatcouch-potatomeansC.whycouch-potatoesareveryfatD.whereyoucanfindcouch-potatoes24.Whichofthefollowingsdoyouthinkmaybethewriter’ssuggestion?A.NeverwatchTV.B.Don’tsitonacouch.C.Don’twatchTVtoomuchD.Don’teattoomuch
Hoverboardsarequiteconvientforpeopletocarryorrideonthebusystreetespeciallyincollegecampsmoreandmorestudentschoosetorideahoverboardtoclass.Sohoverboards电动滑板wereamongthemostpopularChristmasgiftsof2015.Theymayhavealsobeenmostdangerousgiftsof2015.Atruehoverboardlookslikeaskateboardwithoutwheels.Tohovermeanstofloatintheairwithoutmovingmuchinanydirection.Thepopularityofhoverboardsbeganinthe1980swiththeBacktotheFuturemovies.Charactersinthesecondandthirdfilmsusedhoverboardsastransportation.Thisyear’spopularhoverboardshoweverdonotactuallyhover.Theyhavewheels.And?asitturnsouttheyarenoteasytousE.Adultsandchildrenaroundtheworldsufferedhoverboard-relatedinjuriesovertheweekenD.ManypostedpicturesofthedamageonsocialmediA.TwitteruserDavidDouglaspostedaphotoofbothhimandayounggirlwiththebrokenarmstheysufferedonChristmasDay.AndanotheruserErinRaffertyuploadedavideoofhermotherfallingoffahoverboardwiththecaptionWholetmomonthehoverboard?Fallingisnottheonlyriskwithsomehoverboards.Theyarealsoafirerisk.AtonestoreinTexasanemployeetriedtofixahoverboardacustomerbroughtin.ThehoverboardthencaughtfirE.Studiessuggestthatsomehoverboardbrandshavedefectivebatteriesorplugs.Manymajorairlinesworldwidehavebannedhoverboardsbecauseofthefirerisk.Butsomepassengersdidnothearthenews.AustralianactorRussellCrowesaidonMondayabouthisdisappointmentthatVirginAustraliaAirlinesdidnotpermithischildrentotaketheirhoverboardsontheplanE.Majorretailers零售商arealsotakingstepstoimprovethesafetyofthehoverboardstheysell.AmazonintheUnitedStatesnowonlysellshoverboardsfrombrandsthathavesubmittedsafetystandarddocuments.TheUK’sAmazonnolongersellshoverboards.Ithasalsoadvisedcustomerswhoboughtunsafebrandsofhoverboardstothrowthemaway.12.What’stheproblemwiththisyear’shoverboards?A.Theydon’thavewheels.B.TheyaredifficulttohandlE.C.Theycatchfireinthesun.D.Theycan’tmoveinanydirection.13.Wecaninferfromthepassagethat___________.A.hoverboardsarestillenjoyingequalpopularityasbeforE.B.hoverboardsarestillsoldonAmazonintheUnitedStates.C.passengersareforbiddentogetonplaneswithhoverboards.D.thenumberofhoverboard-relatedinjuriesisdeclining.14.Theunderlinedworddefectiveinthesixthparagraphprobablymeans_____.A.deadB.faultyC.dryD.spare15.Wecanprobablyreadthispassageina___________.A.sciencefictionB.magazineC.newspaperD.moviereview
Withthepressofabuttonapersonwithseverespinalcord脊柱injuryisabletowalkagainthankstotheWalkingAssistiveExoskeletonRobotWAER.Poweredsuitsthatcouldhelpparalyzed瘫痪peoplewalkandothersliftandcarryheavyloadswitheasehavebeenadreamsincelate19thcentury.Buttheycanrealizetheirdreamsinthe21stcentury.The20-kilogramrobothasfourbattery-poweredmotorsthatcanrunforuptothreehours.InventorWuChenghuafromTaiwan’sIndustrialTechnologyResearchInstitutesaysithassuccessfullybeenintestson12patients.Wehavelearnedfromourresearchprocessthatpatientswhoseinjuriesarebelowthefourthchestjoint关节areabletouseourrobottostandwalkandsitdownhesaiD.SincewalkingcontributestomuscleexerciseWusayspatientsreceivesomeadditionalbenefits.Intheclinicalprocesswewouldchecktheirbonemineraldensity密度andwefoundthatthebonemineraldensitiesofthesepatientshadbeenimproveD.hesaiD.Wusayshisexoskeletonmaybeavailableforconsumersby2018.MeanwhilebaggagehandlersatTokyo’sHanedaAirportwillsoonstarttestingasimilarrobotdevelopedbytheJapanesefirmCyberdynE.Thebattery-poweredrobotweighsonly3kilogramsanditcanliftaheavyobjectthemachinemonitorsthemovementsaysYoshiyukiSankaithedeveloperandCEOofCyberdynE.Thisrobotsuitmonitorsthesignalfromthehumannerve神经systemtosupportthewaist’smovementSankaisaiD.Itself-adjuststhelevelsupporttoreducetheloadonthehumanwaistlightandsmart.WebelievethatitwillchangethelifeofparalyzedpeopleinmanywaysandhaveapromisingfuturE.32.WiththehelpofWAERpatientswillprobably.A.improvetheirbonemineraldensityB.walkasfastasnormalpeopleC.monitortheirwaist’smovementD.recoverfromspinalcordinjury33.WhatcanwelearnabouttheinventionofWuChenghuafromthepassage?A.ItwillsoongettestedatTokyo’sHanedaAirport.B.Itmaybeputintouseforconsumersbytheyear2028.C.Itcanbeusedbypatientswithinjuriesbelowthefourthchestjoint.D.Itweighs3kilogramsandcanrunforuptothreehours.34.HowdoesSankaifeelaboutthefutureoftherobotsuits?A.WorrieD.B.Doubtful.C.PuzzleD.D.OptimistiC.35.What’sthemainideaofthepassage?A.ThedreamtocureparalyzedpeoplebyrobothasbeenrealizeD.B.Poweredrobotsuitswillsoonreplacebaggagehandlersatairports.C.TwosimilarrobotsuitshavebeendevelopedtohelppeoplE.D.WAERismoreadvancedthantherobotdevelopedbyCyberdynE.
MotherNaturecanbefierceandsomeofthegreatestpowersheusescomesintheformofsandstorms.Theycanbefoundacrosstheglobeandmuchliketornadoes龙卷风littleisknownaboutthem.SandandduststormscanbedeadlywiththeirsuffocatingwindsfullofsanD.Afunnythingaboutsandandduststormsisthattheyhardlyevergiveanywarning.Theycanbedetectedlikeatornadobutonlyafterithasformedadustwhirl回旋.Onaradarscreentheyappeartobeanyothermassofbadweather.Howevertheyaremuchworsethanathunderstorm.NotonlydosandstormsproducetornadoescalledsandwhirlsbuttheyinvadeeverycornertheyfinD.Ifyoucangetoutofthepathdoso.HowtosurviveasandstormwhenyoucannotrunawaySandstormscomequicklyleavingvalleylikebeachesintheirwaythatcancoveranentirehousE.Ifyouhavetostaywhereyouaregetready.Closeallwindowsanddoorsandthencoverthemwithplasticclothorcurtainswhichhavetobenailedtothewalls.Thatwillhelpkeepthemillionsoftinybitsfromenteringyourthroatandlungs.CoveralltheholesthatleadtotheoutsidE.A.basementisnotnecessarilythebestplaceasthecloudsofdustwillsinkthroughthefloors.CoveryourentirefaceandeyesifpossiblE.Bandannas头巾willworkindanger.Hunker蹲downinasealedareaboxcontainerorroomthatisinnodangerofbeingrippedawaybythefiercewinds.Ifnothingelseisavailablelayyourselfonplasticclothorsomethingmadeofanairtightmaterialandthenrollyourselfupinit.Thesmallestcrackwillletinmoresandanddustthanyourlungscanhandleforanylengthoftimeandtheseforcesofnatureusuallyhangaroundforhourscoveringeverything.Breathingthroughwetclothlikeinafiresituationwillalsohelponcethecloudsofdustarebeginningtocomein.Thewetclothstopsthedustandprovidesmoistureinadifficultsituation.8.TheunderlinedwordsuffocatinginParagraph1probablymeans________.A.lettingoutastrangenoiseB.beingfrighteningordangerousC.destroyingeverythingonthewayD.causingdifficultyinbreathing9.Whatdoweknowfromthepassage?A.Therearesandstormsonlyindeserts.B.Sandstormsoftenarrivewithoutanysign.C.Sandstormsarequitedifferentfromtornadoes.D.Thunderstormsareworsethansandstorms.10.Whatisbestforpeopletodoifasandstormcomes?A.Getoutofitswayquickly.B.Coveryourselfwithwetcloth.C.CoveryourheadwithabandannA.D.Enterabasementifyoucan.11.Whyshouldpeoplehunkerdowninasealedareaboxorcontainer?A.Becausetheywon’tbeblownawaybysandstorms.B.Becausetheycan’tberippedawaybythewinD.C.Becausetheycanstopsandordustfromcomingin.D.BecausetheycanstopthedustandprovidemoisturE.
Honey蜂蜜fromtheAfricanforestisnotonlyakindofnaturalsugaritisalsodelicious.Mostpeopleandmanyanimalslikeeatingit.Howevertheonlywayforthemtogetthathoneyistofindawildbees’nest巢andtakethehoneyfromit.Oftenthesenestsarehighupintreesanditisdifficulttofindthem.InpartsofAfricathoughpeopleandanimalslookingforhoneyhaveastrangeandunexpectedhelper—alittlebirdcalledahoneyguidE.Thehoneyguidedoesnotactuallylikehoneybutitdoeslikethewax蜂蜡inthebeehives蜂房.Thelittlebirdcannotreachthiswaxwhichisdeepinsidethebees’nest.Sowhenitfindsasuitablenestitlooksforsomeonetohelpit.ThehoneyguidegivesaloudcrythatattractstheattentionofbothpassinganimalsandpeoplE.Onceithastheirattentionitfliesthroughtheforestwaitingfromtimetotimeforthecuriousanimalorpersonasitleadsthemtothenest.Whentheyfinallyarriveatthenestthefollowerreachesintogetthedelicioushoneyasthebirdpatientlywaitsandwatches.SomeofthehoneyandthewaxalwaysfallstothegroundandthisiswhenthehoneyguidetakesitssharE.Scientistsdonotknowwhythehoneyguidelikeseatingthewaxbutitisverydeterminedinitseffortstogetit.Thebirdsseemtobeabletosmellwaxfromalongdistanceaway.Theywillquicklyarrivewheneverabeekeeperistakinghoneyfromhisbeehivesandwillevenenterchurcheswhenbeeswaxcandlesarebeinglit.33.Whyisitdifficulttofindawildbees’nest?A.It’ssmallinsizE.B.It’shiddenintrees.C.It’scoveredwithwax.D.It’shardtorecognizE.34.WhatdothewordsthefollowerinParagraph2referto?A.AbeE.B.A.birD.C.A.honeyseeker.D.A.beekeeper.35.Whatcanbethebesttitleforthetext?A.WildBeesB.WaxandHoneyC.BeekeepinginAfricaD.Honey-Lover’sHelper
Doeshappinesshaveascent?Whensomeoneishappycanyousmellit?Youcanusuallytellwhensomeoneishappybasedonseeingthemsmilehearingthemlaughorperhapsfromreceivingabighug.Butcanyoualsosmelltheirhappiness?SurprisingnewresearchsuggeststhathappinessdoesindeedhaveascentandthattheexperienceofhappinesscanbetransmittedthroughsmellreportsPhys.org.Forthestudy12youngmenwereshownvideosmeanttobringaboutavarietyofemotionswhileresearchersgatheredsweatsamplesfromthem.AllofthemenwerehealthyandnoneofthemweredrugusersorsmokersandallwereaskedtoabstainfromdrinkingoreatingsmellyfoodsduringthestudyperioD.Thosesweatsampleswerethengivento36equallyhealthyyoungwomentosmellwhileresearchersmonitoredtheirreactions.Onlywomenwereselectedtosmellthesamplesapparentlybecausepreviousresearchhasshownthatwomenhaveabettersenseofsmellthanmenandarealsomoresensitivetoemotionalsignaling—thoughit'sunclearwhyonlymenwerechosentoproducethescents.Researchersfoundthatthebehaviorofthewomenaftersmellingthescents—particularlytheirfacialexpressions—indicatedarelationshipbetweentheemotionalstatesofthemenwhoproducedthesweatandthewomenwhosniffedthem.Humansweatproducedwhenapersonishappybringsaboutastatesimilartohappinessinsomebodywhobreathesthissmellsaidstudyco-authorGunSeminaprofessoratKocUniversityinTurkey.Thisisafascinatingfindingbecauseitnotonlymeansthathappinessdoeshaveascentbutthatthescentiscapableoftransmittingtheemotiontoothers.Thestudyalsofoundthatotheremotionssuchasfearseemtocarryascenttoo.Thisensurespreviousresearchsuggestingthatsomenegativeemotionshaveasmellbutitisthefirsttimethishasprovedtobetrueofpositivefeelings.Researchershaveyettoisolate分离exactlywhatthechemicalcompoundforthehappinesssmellisbutyoumightimaginewhatthepotentialapplicationsforsuchafindingcouldbE.HappinessperfumesforinstancecouldbeinventeD.Scenttherapies香味疗法couldalsobedevelopedtohelppeoplethroughdepressionoranxiety.Perhapsthemostsurprisingresultofthestudyhoweverisourbroadenedunderstandingofhowemotionsgetcommunicatedandalsohowourownemotionsarepotentiallymanagedthroughoursocialcontextandtheemotionalstatesofthosearoundus.5.Whatisthemainfindingofthenewresearch?A.Pleasantfeelingscanbesmeltout.B.Negativeemotionshaveasmell.C.Menproducemoresweats.D.Womenhaveabettersenseofsmell.6.TheunderlinedpartabstainfrominParagraph3probablymeans_________.A.continueB.practiceC.avoidD.try7.Whatistheapplicationvalueofthenewresearch?A.Perfumescouldhelppeopleunderstandeachother.B.SomesmellscouldbecreatedtoimproveourappearancE.C.Perfumescouldbeproducedtocurephysicaldiseases.D.SomesmellscouldbedevelopedtobetterourmooD.8.Wecanlearnfromthelastparagraphthat.A.happinesscomesfromascentofsweatB.socialsurroundingscaninfluenceouremotionsC.peopleneedmoreemotionalcommunicationD.positiveenergycandeepenunderstanding
AnenvironmentalgroupcalledtheFoodCommissionisunhappyanddisappointedbecauseofthesalesofbottledwaterfromJapan.Thewateritangrilyarguesinpublichastraveled10000foodmilesbeforeitreachedWesterncustomers.TransportingwaterhalfwayacrosstheworldissurelytheextremelystupiduseoffuelwhenthereisplentyofwaterintheUK.ItisalsoworryingthatwewerewastingourfuelbybuyingprawnsfromIndonesia7000foodmilesandcarrotsfromSouthAfrica5900foodmiles.Countingthenumberofmilestraveleddonebyaproductisastrangewayoftryingtotellthetruesituationoftheenvironmentaldamageduetoindustry.Mostfoodistransportedaroundtheworldoncontainershipsthatareextremelyenergyefficient.Itshouldbenoticedthatatonofbuttertransported25milesinatrucktoafarmers’marketdoesn’tnecessarilyuselessfuelonitsjourneythanasimilarproducttransportedhundredsofmilesbyseA.Besidestheideaoffoodmilesignorestheamountoffuelusedintheproduction.ItispossibletocutdownyourfoodmilesbybuyingtomatoesgrowninBritainratherthanthosegrowninGhanA.ThedifferenceisthattheBritishoneswillhavebeenraisedinheatedgreenhouseandtheGhanaianonesintheopensun.WhatistheideaoffoodmilesdoesprovidehoweveristhechancetocutoutThirdWorldcountriesfromFirstWorldfoodmarkets.ThenumberofmilestraveledbyourfoodshouldasIseeitberegardedasasignofthesuccessoftheglobaltradesystemnotasignofdamagetotheenvironment.32.TheFoodCommissionisangrybecauseitthinksthat________.A.UKwastesalotofmoneyimportingfoodproductsB.someimportedgoodscausesenvironmentaldamageC.growingcertainvegetablescausesenvironmentaldamageD.peoplewastedenergybuyingfoodfromothercountries33.Thephrasefoodmilesinthepassagereferstothedistance________.A.thatafoodproducttravelstoamarketB.thatafoodproducttravelsfromonemarkettoanotherC.betweenUKandotherfoodproducingcountriesD.betweenaThirdWorldcountryandaFirstWorldfoodmarket34.BycomparingtomatoesraisedinBritainandinGhanatheauthortriestoexplainthat________.A.BritishtomatoesarehealthierthanGhanaianonesB.GhanaiantomatoestastebetterthantomatoesonesC.cuttingdownfoodmilesmaynotnecessarilysavefuelD.protectingtheenvironmentmaycostalotofmoney35.Fromthepassageweknowthattheauthorismostprobably________.A.asupporteroffreeglobaltradeB.amemberofaFoodCommissionC.asupporterofFirstWorldfoodmarketsD.amemberofanenergydevelopmentgroup
A.newphoneappusesshakingfromsmartphonestowarnpeopleaboutearthquakes.ThenewappiscalledMyShakewhichistheworkoffourresearchersattheUniversityofCaliforniaBerkeley.Smartphonesareequippedwithaccelerometers加速器.MyShakeusesphoneaccelerometerstomeasureseismic地震的activity.Ithasbeenprogrammedtoknowthedifferencebetweennormalactivityandearthquakemovement.Thesoftwaredeveloperssaytheirappisright93percentofthetimE.A.smartphonesendsseismicinformationtotheappdevelopers.Ifthedevelopersreceiveseveralwarningsfromoneareaitrecognizesthatanearthquakemaybetakingplaceorwilltakeplacesoon.Usinginformationsentfromtheappthenetworkthenjudgesthelocationwhereearthquakes*havehappenedandstrengthofthequakeinrealtimE.MyShakecanrecord5.0earthquakesatdistancesof10kilometersorless.MyShakeusesverylittlepoweraccordingtoitsdevelopers.Onlywhenseismicactivityissensedbytheappdoesitbecomeactiveandsendsdatatothenetwork.TheappworksbestwhenyourphoneisrestingonaflatsurfacelikeatablE.ThedevelopershopethatMyShakecanaddtoinformationcollectedbytheU.S.GeologicalSurvey.ThatU.S.agencyhascreatedtheEarthquakeEarlyWarningSystemalsoknownastheEEW.TheEEWhasusedsensorsformeasuringquakesinmanyareas.InplaceswherenosuchequipmentexistsMyShakemaybetheonlymethodofearlyquakedetection发现.TheappalsoshowswaystostaysaferduringanearthquakE.Thedeveloperssayitwillbecomemoreeffectiveasmorepeopleuseit.Thedeveloperssay.theyhopetoaddafeaturethatwillwarnpeopleaboutapossibletsunami海啸afteranearthquake:32.Thenewapp_'A.isakindofaccelerometerB.feelsearthquakesthroughsmartphonesC.isdevelopedbytheU.S.GeologicalSurveyD.predictspossibletsunamiafteranearthquake33.Whatisthesecondparagraphmainlytalkingabout?A.HowMyshakeworks.B.Whatseismicactivityis.C.WhyMyshakeisdevelopeD.D.Whenaccelerometersrecordearthquakes.34.WecaninferthatMyshake____.A.doesnotworkwhenthesmartphoneisinthepocketB.sleepswhilethereisnoshakingoftheearth'ssurfaceC.guidespeoplehowtosurvivewhenmanypeople.useitatthesametimeD.recognizesanearthquakewhenitreceivestheinformationfromothersensors35.Thenewappdevelopershopeto____.A.usetheinformationbytheU.S.GeologicalSurveytobetterMyshakeB.unitetheU.S.GeologicalSurveytocombinetheEEWandMyshakeC.helptheEEWdetectearthquakessomewhereD.improvetheEEW
Youuseherasashouldertocryon.Shetextsyoubackwithcasualjokes.ButsheXiaoiceisonlyavirtualchatbot.XiaoiceMicrosoft'slatestartificialintelligencerobotwasbrieflyreleasedin2014andreturnedtoWeChatin2015whereshebecameabighit.MillionsofyoungChinesenowexchangemessageswithherdailyTheNewYorkTimesreporteD.OnWeChatXiaoiceisanofficialaccount.Afterfollowingituserscanstarttext-basedconversationswithXiaoicE.HerincrediblelearningabilitywaswhypeoplelovedtotalkwithXiaoiceLiuJinchangaresearcheratHigh-techResearchandDevelopmentCenterundertheMinistryofScienceandTechnologytoldChinaDaily.Apartfromherabilitytoidentifyphotosandsendemojis表情符号inconversationsXiaoicegains45percentofherknowledgefrominteractingwithusersChinaDailyreporteD.Chatbotprogramsfirstappearedinthemid-1960sintheUS.Drivenbytoptechcompaniestheyarebecomingsmarterandmorecommon.ForinstanceIBM'slatestartificialintelligenceprogramservedasanacademicconsultantatAustralia'sDeakinUniversityansweringstudents'questionsaboutcourseschedulesandfinancialaiD.Apple'sSiriandAmazon'sAlexahavebeenusedasvoiceassistantswhocanreadnewsplaymusicandevenmakejokesfortheirusers.TheseprogramsareexpectedtomovebeyondsmartphonesintotelevisionscarsandlivingroomsTheNewYorkTimespointedout.HoweveritmaytakedecadesbeforescientistsdevelopaSamanthatheadvancedchatbotseeninthefictionfilmHer.InthefilmSamanthasparksaromanticrelationshipwithheruserplayedbyUSactorJoaquinPhoenix.Manyviewerswereenthusiasticaboutthisfantasyofvirtualsoulmates.28.Whatdoestheunderlinedpartinparagraphtwomean?A.Shebecameverypopular.B.Shebecameverypowerful.C.Shebecameamoneymaker.D.Shebecameabestseller.29.WhichofthefollowingcanXiaoicedo?A.Dohousework.B.Spreadmessages.C.Readnewstoitsusers.D.Identifyvariousphotos.30.Whichcompany'schatbotprogramcanactasanacademicconsultant?A.Microsoft.B.IBM.C.ApplE.D.Amazon.31.Whatcanbelearnedfromthelastparagraph?A.Chatbotsmainlyrunonsmartphonesnow.B.It'lltakedecadestoapplychatbotstocars.C.SamanthaisplayedbyaUSactorinthefilm.D.ThefilmHerdoesn'tinterestmanyaudiencE.
Analysisofthecompositionofquicksandshowsthattherearefourkeyingredients—sandobviouslywaterclayandsalt.Togetherthesematerialsformastructureresemblingahouseofcardswithlargewater-filledgapsbetweenthesandparticleswhicharelooselygluedinplacebytheclay.Aslongasit’sleftalonethestructureremainsstablE.Butassoonasit’sdisturbedbysteppingonittheclaychangesfromajelly-likeconsistencytoarunnyliquiD.Theeffectisthesameasstirringapotofyoghurt.Liquefying溶解theclaymakesthequicksandaboutonemilliontimesrunnierandthewholehouseofcardscomestumblingdownwithyouinsideit.Veryquicklythesandsinkstothebottomandthewaterfloatstothetop.Thisiswherethesaltcomesin.Whenthere’senoughsaltpresentassoonastheclayparticlesliquefyelectricalchargesmakethembegintosticktogethertoformbiggerparticlesandthesealsosettlewiththesanD.QuicksandisamixturewhichlookslikesolidbutbehavesmorelikealiquiD.Despiteitsmurderousreputationquicksanddoesnotsuchpeopleunderandswallowthemalthoughitcanholdapersoninfirmgrip.Thehumanbodyismorebuoyant有浮力inquicksandthaninwaterandsoonerorlateranyonetrappedinitwillfloat.Unlikemostliquidsquicksand’sviscosityorrunninesscansuddenlychangeifitcomesunderpressureforexampleunderahumanfoot.Thesurfacegiveswayandthevictimquicklysinksinuptothekneessurroundedbyanareaofdirtythingsthatturnssemi-solidarounditsvictim.Escapingfromthequicksand’sgrip紧握requiresalargeamountofforcE.Withoutsomethingsolidtopullatpeopleoftenfindtheyarestuckfast.Pullingatonelegsimplymakestheotheronesinkfurther.Sohowdoyouescapefromquicksand’scontrol?Staystillandcallforhelp.Stayingstillstopsyousinkinganyfurtheruntil--withluck--helparrivesonthescenE.IfnooneappearsandyouneedtodrawyourselfoutgentlyliedownonyourbackuntilyourbodyisfloatingonthesanD.NextrolloverontoyourstomachandpullyourselfforwardswithyourhandssothatyougraduallyswimtowardsfirmergrounD.Itisaslowanddirtybusinessbutitworks.Thistechniquehasonebarrier:itgoesagainstaverypowerfulhumannaturE.Facedwithdangerintheopennineoutoftenstayontheirfeetsothattheycanrunawayinwhichcaseitcanworsenthesituation.32.Whichingredientofthequicksandmakesomeonetrappedinitstuckandstuckfast?A.SandB.ClayC.WaterD.Salt33.Fromthepassagewecanlearnthat________A.aslongasyouarestrongenoughyoucanpullyourselfupfromquicksandonyourownB.claygluessandparticleslooselywhichmakesquicksandstableunlessitisdisturbedC.becauseanyonetrappedinquicksandwillfloatthereislittlepossibilityofhimdyingD.lookinglikesolidgroundquicksandisactuallyliquid34.Ifsomeoneistrappedinquicksandwhatshouldhedo?A.RemaincalmandwaveforhelpB.StandinquicksandandgetreadytorunawayasquicklyaspossibleC.SwimmingisoneofthebestchoiceshecanusetoescapeD.Onceinquicksandliedownonhisstomachimmediatelyandswimslowlytosafety35.Whatmightbethebesttitleofthepassage?A.A.humankiller--quicksandB.HowtoescapefromdangerC.AnawfulexperienceinquicksandD.Whattodoiftrappedinquicksand
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