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Some plants get so hungry that they eat flies, spiders, and even small frogs. What’s more amazing i...
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高中英语《湖北省武汉外国语学校2016-2017学年高二3月月考英语试题 Word版含答案》真题及答案
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Plantsareveryimportantlivingthings.Lifecouldnotgoi
Someplantsgetsohungrythattheyeatfliesandevensmallf
阅读短文根据短文内容按要求答题Canplantseatpeople?Probablynotbutth
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Stuttering口吃isacommunicationdisorder疾病generallycharacterizedbyunconsciousrepetitionsorpausesintheflowofspeech.Theserepetitionsandpausescanbakemanyformssuchasrepetitionsofpartsofwordsli-li-likethis.Sometimestherearemomentswhenasoundoraperiodofsilenceislengthenedllllikethisorl-ikethis.Stutteringcanbeclassifiedintoanumberorcommunicationdisorders:neurogenic神经性的stutteringandpsychogenicstutteringareassociatedwithsuddenonset发作andastheirnamesimplywithaspecificknowncause—eitheraprobleminthemakeupofthebrainoragreatpsychologicalchallengE.Thesedisordersarecomparativelyrareanddifferintermsofcausessymptomsandtreatmentfromdevelopmentalstuttering.Developmentalstutteringtypicallystartsbetweentheagesoftwoandahalfandfour.Theonsetofthedisorderwhichcanbegradualorrelativelysuddengenerallyoccursduringtheperiodofrapiddevelopmentinachild’slanguageskillsmotorskillscharacterandsocialinteraction.Thecauseofdevelopmentalstutteringarenotwellunderstoodandvarioustheorieshavebeenofferedthroughoutthehistoryofspeech-languagepathologythestudyofthecausesandeffectsofillnesses.Therootsofstutteringhavebeenbelievedtorelatetoanumberofcauses:emotionalproblemsneurologicalproblemsimproperreactionsfromcaregiversandfamilymemberslanguageplanningandspeechmotordifficultiesamongothers.Thesetheorieshaveshownthepromiseofexplainingsomecharacteristicsofstutteringbutnosingletheoryhasthoroughlydescribedtheexperiencesofpeoplewhostutter.Youngchildrenwhohavestutteredforonlyashorttimehaveahighrateofnaturalrecoverythoughitisimpossibletodeterminewhichchildrenaremostlikelytorecoverandwhicharelikelytocontinuestuttering.Mostexpertsrecommendearlyevaluationandtreatmentaimedatpreventingthedevelopmentofachronic慢性的communicationdisorder.Speech-languagepathologistsdisagreeaboutwhichapproachisbestforolderchildrenandadults.Treatmentoptionsincludetrainingtochangespeechpatternsturningtodoctorstominimizenegativereactionsdrugsandelectronictoolsthatimprovefluency.Self-helpandsupportgroupsalsoplayanimportantroleinrecoveryformanypeoplewhostutter.Manypeoplewhohavetakenstutteringtreatmentprogramsareabletomakepositivechangesintheirspeechskillsandcommunicationabilitiessotheycancommunicatefreely.9.Ifasmallchildbeginstostutterhisorherparentsshould________.A.givetheirfamilymoretimeB.consultadoctorimmediatelyC.waitforthechildtorecovernaturallyD.encouragethechildtospeakfluently10.Whatcanwesayabouttheapproachestotreatmentofstuttering?A.Theyprovetobeuselessforchildren.B.TheyareattheexperimentalstagE.C.Theyproducepositiveeffects.D.Theyworkagainsteachother.11.Themainpurposeofthetextisto________.A.describerecentresearchonstutteringB.showustheclassificationofstutteringC.explainthedifferentformsofstutteringD.offersomebasicknowledgeofstuttering
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TheWomen’sInstituteisurgingsupermarketstodomoretohelpconsumersreducetheirhomefoodwasteafterasurveyofitsownmembershipshowedwidespreadconfusionaboutbestbeforeandusebylabeling标签onpackaging.Itsnewanalysisofproductsonsupermarketshelvesfoundthatonce-openedinstructionswereoftencontradictoryandoftenfailedtomakeclearwhethertheywereaguidetofoodsafetyorquality.Only45%of5000WImemberssurveyedunderstoodthatbest-beforedateswereasignoffoodqualitywhile26%didnotunderstandthatthemoreimportantuse-bydateswereadecisiveguidetofoodsafety.InitsreportonfoodwastetheWIsaidsupermarketswerepotentiallycontributingtohomefoodwastebyleadingcustomerstobuymorefoodthantheyneedandgivingconflictingandconfusingon-packinformationthatleavescustomersunsureabouthowlongaproductremainssafetoeatinthehomesetting.The42-pagereportispartoftheWI’songoingcampaigntoreducefoodwastE.Tounderlinethepointaboutconflictinginformationitcites引用acanofSainsbury’sown-brandsweetcornadvisingconsumerstoeatitwithinonedayofopeningwhileasimilartinfromWaitrosegaveconsumerstwodaystofinishit.GreenGiantsweetcornhoweverhasnospecifieddateforeatingonceopeneD.MarylynHainesEvanschairoftheWomen’sInstitute’spublicaffairssaid:WImembersaresomeofthemoreinformedmembersofsocietyaboutfoodandcookerybuttheyarestillconfusedaboutfoodlabellingand‘once-opened’information.Sowewouldlikesupermarketstoextendtheamountoftimethatconsumershavetouseaproductintheirhomesbymakingalloftheironce-openedinstructionsonproductpackagingconsistentandcompletelyremoveonce-openedinstructionsonproductswherefoodsafetyisnotanissuE.32.WhatmainlyleadstofoodwasteaccordingtoWI?A.PoorqualityoffoodB.AttractivepackagingofproductsC.CompetitionamongsupermarketsD.Consumers’confusionabouton-packinformation33.Whichofthefollowingcaninformyouoffoodsafety?34.WhyarethethreesupermarketsmentionedinParagraph3?A.ToattractmoreconsumersB.TocomparetheirproductsC.TocommentontheirserviceD.TomakeWI’sreportconvincing35.WhatdoesEvanssuggestsupermarketsdoaboutreducingfoodwaste?A.ExtendlifeofaproductB.Turntowell-informedWImembersC.Giveconsistentonce-openedinstructionsD.Removeinstructionsonproductpackaging
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YourNewYear’splantomovemoreisoneofthetoughesttosticktoandagroupofscientistsworkingwithobese过度肥胖的micethinkthey’restartingtounderstandwhyRatherthanoursedentary久坐的livescausingweightgainsaysAlexxaiKraviztheNationalInstitutesofHealthneuroscientistwholedthestudychangesinbrainchemistryafterwestartgainingweightaffectourcapacitytomovE.ObsesmicecanmovejustfinedaysKravitzwhopublishedtheworkwithhisteaminCellMetabolismTheyjustdon’t.WhatKravitz’steamfoundisthattheactivityofaparticulardopamine多巴胺receptorlinkedtomovementgoesdownasmicegainweightonahigh-fatdiet.Sotheniceslowdownandtheymoveless.Andwhentheresearchersrestoredtheactivityofthatdopaminereceptor—DR2—themicestartedmovingmoreeventhoughtheywerestillobesE.TheteamalsosawthatleanmicemissingtheDR2receptoractedlikeobesemicE.ThisisthetargetsaysKravitz—restoringthatdopaminereceptorfunction.Manbe20or30yearsdowntheroadwecoulddothatinpeoplehesays.Andthereisonemorething:ThescientistsfednormalmiceandthemicelackingDR2thesamehigh-fatdiet.BothsetsofmicegainedweightatthesameratE.KravitzsaysthisisimportantbecausemicelackingDR2movelessfromtheget-gowhereasanormalmousetakesalittletimetostartseeingthatdopaminereceptor-relatedlossofexercisE.Theabilitytoexerciseseemstobedisconnectedfromweightgainhesays.Exerciseisahealthythingtodobutitsimpactonweightlosshasbeenexaggeratedhesays.Wehavetoberealisticaboutthesizeoftheeffectofexerciseonweightasopposedtohealthbenefits.StillbeforeyouabandonyourNewYear’sexerciseplankeepinmindthatthisstudywasdoneusingahigh-fatdietandnotthenormalcalorierestrictionthatpeoplemaintainwhentheydiet.That’sabigdrawbacktotheworksaysVickiVieira-PotteraUniversityofMissouriphysiologistnotinvolvedinthestudyTheyfeedthemicewithhigh-fatdietitdamagesthereceptorandthatdecreasesactivity.Thosewhoplantolostweightshouldrememberhigh-fatdietisanicewaytocauseobesityinthelabbutit’snotthesameasthenormalsituationofobesityshesys.Sinealsosaysthatalotoftheweightgaininthemicecameaftertheystoppedmovingaroundwhichindicatesthatthelossofmovementdidimpactobesity.41.AlexxaiKravitzislikelytoagreethat______.A.high-fatfoodleadstothelackofDR2B.lessmovementresultsfromweightgainC.thelackofDR2resultsinlessmovementD.weightgainleadstotheinactivityofDR2.42.Whatcanweinferfromtheresearchmentionedinthepassage?A.High-fatdietisboundtocauseobesity.B.TheresearchteamaimtodealwithhumanobesityC.High-fatdiethaslittleinfluenceontherateofweightgainD.Obesemice’sabilitytomoveisaffectedbytheinactivityofDR243.TheunderlinedwordexaggeratedinParagraph7canbereplacedby______A.underestimatedB.excludedC.overlookedD.overemphasized44.AccordingtoVickiVicki-Vieira-Potter______.A.besidesdietotherfactorsbehindobesityshouldn’tbeignoredindailylifeB.thetotallossofmovementcandoharmtothefunctionofDR2C.AlexxaiKravitz’steammisreadtheresultsoftheresearchD.obesityismainlycausedbyhigh-fatdietpeopletakE.
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Thereareseveralreasonswhycatsclimbtreesmostlytodowithdefensivepurposes.Catsaspredators捕食者liketounderstandtheirenvironmentwell.Catsclimbtreestogetabetterviewortheirsurroundingstohelpthemseeanypotentialdangersorpotentialprey被掠食者.Whilecatsarepredatorstheycanalsobeeasilyattackedbylargeranimals.A.treeoftenprovidesasafehidingplacE.Inthewildcatsclimbuptreestogivethemarestingplacethatisoutofpredators’rangE.Italsohelpsdisguisetheirpresencewhichcanpreventanypreyfromnoticingthatthereisacatnearby.Sometimessomecatsmayclimbtreesforfunorpossiblytoworkonimprovingtheirclimbingabilities.Kittensfrequentlytestouttheirclawskillsbytryingtoclimbupeverythingfrombookcasestotreestoaperson’sleg.Climbingpracticeisgoodforcats;itcanimprovetheirstrengthandflexibilityandteachthemanimportantdefensiveskill.Topreventthemfrompracticingindoorclimbingofyourfurniturehoweverownersmaywishtobuyacarpetedcattreeforclimbing.Ifacathasgottenupatreeandcannotgetdowntheownermaywonderwhyitsremarkableclimbingabilitiesonlyworkinonedirection.A.cat’sclawscurve弯曲inwardallowingittotakeholdofsurfaceswhilegoingupheadfirst.Unfortunatelythisusefulclimbingcurvedoesnothingtohelptheanimalgetbackdownagain.Eventuallymosttrappedkittenswilleitherjumpoutofthetreeorrealizethattheycangetdownbygoingtailfirst.Eitherwayacatupatreeisusuallynothingtopanicaboutunlessitisinjured;theyareintelligentanimalsandwillfindouthowtogetdownsoonerorlater.29.InmostcasescatsclimbtreesinordertoA.havefunB.seekfoodC.defendthemselvesD.pleasetheirowners30.WhatdoestheunderlinedworddisguiseinParagraph2mean?A.FindoutB.FocusonC.MakeclearD.Coverup31.WhydopeoplewanttobuycarpetedcattreesA.Totraintheircatsinclimbing.B.TohelpprotecttheirfurniturE.C.Toimprovetheircats'clawskills.D.Tokeeptheircatswarminwinter.32.SeeingyourcatupatreeyouaresupposedtoA.justtakeiteasyB.leaditdownslowlyC.feedsomefoodtoitatonceD.keepaneyeonitallthetime
AugustoEsquivelisasculptorwhoinhisownwordsiscrazywithcomparisonsofrealityandpotentialandthebalancebetweenthem.Perhapsthebestexampleofwhathe’stalkingaboutarehismostfamouscreations:thesuspended悬挂的buttonsculptures.MadeentirelyfrombuttonshangingonvariouslengthsofstringEsquivel’ssculpturesaremadetolooklikecommonobjects:apianoagumballmachineandevenatoilet.Ifitwasn’tfortheclearstringhangingabovetheseobjectsthesesculptureswouldlooksolidyetyoucanputyourhandsrightthroughthem.Theprocessstartswithhimdecidingonasubjectandsettingtheacrylic丙烯酸树脂fromwherethebuttonsarebeingsuspendeD.Hebuysbuttonsofdifferentshapesandsizespaintsthemwithspraypaintandcarefullyhangsthem.Afterthatit’samannerofhangingeachindividualbuttonwhichtakesalotoftimE.Forhispianoforexampleheindividuallyhungover60poundsworthoftinybuttons.Esquivel’ssculptureswhilemostlyhousedinsideartgalleriesperfectlycaptureoneofthemainprinciplesofstreetart:somethingthatiseye-catchingandsomethingthatinvitesinteraction.Oftenthebestsculpturesoutsidetheartgalleriesaren’ttheonesbehindguardsandfencingbuttheonespeoplecangorightuptoandtouch.InVancouveraseriesoflaughingoldmenareattractingpeopleforpicturesandtojustgenerallyhangaroundbutthepeoplewhosimplywalkbyandseethesculpturesalmostalwaysleavewithasmileontheirfacE.That’sgoodstreetart:itdrawstheviewerinratherthanrelyingonagallerytodrawinanaudienceandpointthemtocertainpieces.Esquivel’sartisnotonlyapresentationoftalentsomethingthatmentionslargerphilosophicalquestionsliketheoneshestatedabovebutalsojusttherightcombinationofinterestingideaandpainstakingwork.Onecanlookathisworkinacriticalwayorsimplyappreciatehisideaandexecution艺术品的制作.13.WhatareEsquivel’ssculpturesmainlymadeof?A.Clay.B.Iron.C.Gum.D.Buttons.14.WhichstatementisWRONGaccordingtoParagraph3?A.SomeofEsquivel’ssculpturesaredisplayedoutsideartgalleries.B.Esquivel’sartisgoodstreetart.C.Peoplecan’ttouchEsquivel’ssculpturesinvolveinteraction.D.Esquivel’ssculpturescancatchpeople’seyeandinvolveinteraction.15.WhichofthefollowinginNOTwhatEsquivel’sartwantstopresent?A.Talent.B.Idealism.C.Philosophicalquestions.D.Painstakingwork.
Idon’teverwanttotalkaboutbeingawomanscientistagain.Therewasatimeinmylifewhenpeoplekeptaskingmestoriesaboutwhatit’sliketoworkinafieldunderthecontrolofmen.IwasneververygoodattellingthosestoriesbecausetruthfullyIneverfoundtheminteresting.WhatIdofindinterestingistheexistenceoftheuniversetheshapeofspacetimeandthenatureofblackholes.At19whenIbeganstudyingastrophysics天体物理学itdidnotbothermeintheleasttobetheonlywomanintheclassroom.ButwhileearningmyPh.D.atMITandthenasapost-doctordoingspaceresearchtheproblemstartedtobothermE.Myeveryachievement—jobsresearchpapersawards—wasviewedfromtheangleofgender性别politics.Soweremyfailures.Thenonedayafewyearsagooutofmymouthcameasentencethatwouldfinallybecomemyreplytoanyandallprovocations挑衅:Idon’ttalkaboutthatanymorE.Ittookme10yearstogetbacktheconfidenceIhadat19andtorealizethatIdidn’twanttodealwithgenderproblems.Whyshouldremovingsexismbeyetanotherterribleburdenoneveryfemalescientist?AfterallIdon’tstudysociologyorpoliticaltheory.TodayIresearchandteachatBarnardawomen’scollegeinNewYorkCity.Recentlysomeoneaskedmehowmanyofthe45studentsinmyclasswerewomen.Youcannotimaginemysatisfactionatbeingabletoanswer45.Iknowsomeofmystudentsworryhowtheywillmanagetheirscientificresearchandadesireforchildren.AndIdon’ttakenonoticeofthoseconcerns.StillIdon’ttellthemwarstories.InsteadIhavegiventhemthis:thesceneoftheirphysicsprofessorheavilypregnant怀孕doingphysicsexperiments.Andinturntheyhavegivenmetheimageof45womendrivenbyaloveofsciencE.Andthat’sasightworthtalkingabout.5.Whydoesn’ttheauthorwanttotalkaboutbeingawomanscientistagain?A.ShefeelsunhappyworkinginthescientificfielD.B.Shefindsspaceresearchmoreimportant.C.SheisnotgoodattellingstoriesofthekinD.D.SheistiredofthesexisminscientificfielD.6.FromParagraph2wecaninferthatpeoplewouldthinktheauthor’sfailuresweredueto__.A.herover-confidenceasafemaleastrophysicistB.herinvolvementingenderpoliticsC.theveryfactthatsheisawomanD.theburdenshebearsinamale-leadingsociety7.Whydoestheauthorfeelgreatsatisfactionwhentalkingaboutherclass?A.Femalestudentsnolongerhavetobotheraboutgenderissues.B.Herstudents’performancehasbroughtbackherconfidencE.C.MorefemalestudentsaregoinginforsciencethanbeforE.D.Herfemalestudentscandojustaswellasmalestudents.8.Whatdoestheimage形象thattheauthorpresentstoherstudentssuggest?A.Womencanbalanceacareerinscienceandhavingafamily.B.Womenhavemorebarriersontheirwaytoacademicsuccess.C.Womenstudentsneedn’thavetheconcernsofhergeneration.D.Womennowhavefewerproblemsgoinginforasciencecareer.
Inthedeadofwinterwedon'ttypicallythinkaboutspendingtimeoutdoorsbutaccordingtomanyphysiciansweshoulD.Thesunisourgreatestsourceofavitaminthatisessentialforgoodhealth—VitaminD.Thisimportantvitaminstrengthensbonesandteethandislinkedtothepreventionofheartdiseasecancerandmanyotherlife-threateningdiseases.Therecommendeddailyrequirementis400-600InternationalUnitsIU.Insummerpeoplewithdarkbrowneyesanddarkerskinturnsunlightfromjust15minutesoutsidewithoutsunscreenintoadequateamountsofVitaminD.Evenduringwinterjusta10-minutewalkmiddaycankeepthebody'sVitaminD.athealthylevels.DuringbriefwinterwalkswereceivethegreatestbenefitswhenwewearnosunscreenandexposeasmuchskintothesunaspossiblE.VitaminD.canalsobeobtainedfromfoods.SalmonisoneofthebestsourcesoftheVitamin.Eggyolks蛋黄cheesemushroomsandsomeanimalsorganscontainsmallerquantitiesofit.ToattractconsumersfoodcompaniesaddVitaminD.tosomeoftheirmilkproducts.ThepracticeofputtingtheVitaminintomilkbeganinthe1930s.AtthattimemanychildrenweresufferingfromricketsanillnessthatiscausedbyaVitaminD.deficiency不足.Itmadethechildren'sbonessoftandweak.AddingVitaminD.tomilkhelpedtosolvetheproblemandithasbeenavailableeversincE.ForpeoplewhostillneedmoreVitaminDthereisanotheroption:takeVitaminD.supplements补充.Theseproductsarewidelysoldinstores.Howeveranyoneconsideringtakingsupplementsshouldconsultaphysicianfirst.28.Duringthewintermonthspeople.A.aren'tabletomeettheirdeadlinesB.oftendon'tdresswarmlyenoughC.generallyliketoremainindoorsD.leavelotsofworkforotherstodo29.AccordingtothetextVitaminD.A.canbeobtainedbybeingexposedtothesunB.canbeusedtocurelife-threateningdiseasesC.canbemainlyfoundinsomemilkproductsD.canmakethechildren'sbonessoftandweak30.Whyissalmonmentionedinthisarticle?A.It'sseldompreparedin.thecorrectway.B.It'sausefuladditiontoaperson'sdiet.C.Ithasahugeimpactontheenvironment.D.ItsadvantageshavebeenexaggerateD.31.Themainpurposeofthisarticleis.A.tointroduceavaluablenutrientB.toadvertiseVitaminD.supplementsC.tonoterisksassociatedwithanutrientD.toexplainhowanutrientwasdiscovered
ShynessisthecauseofmuchunhappinessforagreatmanypeoplE.Shypeopleareanxiousandself-conscious;thatistheyareexcessivelyconcernedwiththeirownappearanceandactions.Worrisomethoughtsareconstantlyoccurringintheirminds:whatkindofimpressionamImaking?Dotheylikeme?DoIsoundstupid?AmIwearingunattractiveclothes?ItisobviousthatsuchuncomfortablefeelingsmustnegativelyaffectpeoplE.A.person'sconceptionofhimselforherselfisreflectedinthewayheorshebehavesandthewayapersonbehavesaffectsotherpeople'sreactions.Ingeneralthewaypeoplethinkaboutthemselveshasaprofoundeffectonallareasoftheirlives.Shypeoplehavinglowself-esteemarelikelytobepassiveandeasilyinfluencedbyothers.Theyneedreassurancethattheyaredoingtherightthing.Shypeopleareverysensitivetocriticism;theyfeelitconfirmstheirfeelingsofinferiority.TheyalsofinditdifficulttobepleasedbycomplimentwithastatementlikethisoneYou'rejustsayingthattomakemefeelgooD.Iknowit'snottruE.Itisclearthatwhileself-awarenessisahealthyqualityoverdoingitisharmful.Canshynessbecompletelyeliminatedoratleastreduced?Fortunatelypeoplecanovercomeshynesswithdeterminedandpatienteffortsinbuildingself-confidencE.Sinceshynessgoeshandinhandwithalackofself-esteemitisimportantforpeopletoaccepttheirweaknessesaswellastheirstrengths.Eachoneofusisauniqueworthwhileindividualinterestedinourownpersonalways.Thebetterweunderstandourselvestheeasieritbecomestoliveuptoourfullpotential.Let'snotallowshynesstoblockourchancesforarichandfulfillinglifE.1.Thefirstparagraphismainlyabout_______.A.thecauseofshynessB.thefeelingofshypeopleC.theeffectofshynessonpeopleD.thequestioninthemindsofshypeople2.Accordingtothewriterself-awarenessis__________.A.harmfultopeopleB.ahealthyqualityC.thecauseofunhappinessD.aweakpointofshypeople3.Whatistheshypeople’sreactiontopraise?A.Theyarepleasedbyit.B.Theyfeeltheyareworthyofit.C.Theyareverysensitivetoit.D.TheyfeelitisnottruE.4.Whatcanlearnfromthepassagethatshynesscan_______.A.beovercomewithdeterminationB.helpustoliveuptoourfulldevelopmentC.enableustounderstandourselvesbetterD.havenothingtodowithlackofself-respect
ScientistshavefoundthathumaneyesaremorelikelytobedamagedbyUVrayswhileskiinginthesnow-coveredareasthansittingonthebeachaccordingtoareportbytheUKnewspaper.TheresearchersatKanazawaMedicalUniversityJapanandAmericancompanyJohnson&Johnsonconductedthestudytogether.TheylookedattheeffectsoflightreflectiononnewlyfallensnowonaskitrailinIshikawaDistrictnorthernJapan.TheycomparedtheresultswiththelevelsofUVraysonasandbeachinsouthernJapan'sOkinawaDistrict.Theyfoundthatonthebeacheyesareexposedtoadaily260kilojoules千焦耳ofUVasquaremetercomparedto658kilojoulesinsnow-coveredareas.ThefindingsaresupportedbytheJapanMeteorological气象的Agency.AccordingtotheagencythereflectionrateofUVlightonbeachesisoftenbetween10and25percentcomparedto80percentinthenewsnowareas.Theamountoflightincreased4percentwitha300-meterriseinheight.MostofusknowthatUVrayscanharmtheskin.That'swhywewearsunscreenonourskinbeforewegetoutinthesun.ButmanyofusmaynotrealizethatUVraysarealsoharmfultotheeyes.IfyoureyesareexposedtolargeamountsofUVradiationoverashortperiodoftimeyoumayexperienceakindofsunburnoftheeyewhichisharmful.Youreyeswillbecomeredandfeelastrangefeeling.Theymaybesensitivetolight.Fortunatelythisisusuallytemporaryandseldomcausespermanentdamagetotheeyes.Long-termexposuretoUVradiationhowevercanbemoreserious.ScientificstudiesandresearcheshaveshownthatexposuretosmallamountsofUVradiationoveraperiodofmanyyearsincreasesthechanceofeyedamagewhichcouldleadtototalblindness.12.Youwouldmostlikelyfindthearticlein.A.adoctor'sdiaryB.atraveljournalC.amedicalmagazineD.aphysicstextbook13.WhichofthefollowingstatementsisTRUEaccordingtothepassage?A.ToomucheyeexposuretoUVraysmaycausetotalblindness.B.Short-timeexposureoftheeyestoUVraysdoesn'tharmthematall.C.MostpeopleknowthatUVraysharmtheeyesaswellastheskin.D.ThestudywasconductedbyresearchersfromJapantheUSAandtheUK.14.HumaneyesaremorelikelytobedamagedbyUVrayswhileskiinginthesnow-coveredareasthansittingonthebeachbecause.A.SnowproducesmoreUVlightthanwater.B.Peopledon’twearsunscreenwhileskiingastheydowhilesittingonthebeach.C.ThereflectionrateofUVlightinsnow-coveredareasismuchhigherthanthatonthebeach.D.HumaneyesareexposedlongertoUVlightinthesnow-coveredareasthanonthebeach.15.Whatwillthepassagemostprobablytalkaboutnext?A.NeverskionnewlyfallensnowinJapan.B.GotohospitaltohaveyoureyesexamineD.C.Wearingahatcanprovideprotectionwhileskiinginnewsnowareas.D.Takesomemeasurestoprotectyoureyeswhileskiinginnewsnowareas.
Asunflowerisasunflower.A.mobilephoneisamobilephonE.Butcanyoucombinethetwotodosomethingforyourlocalenvironment?AsearlyasnextyearitmaywellbepossiblE.Whenyouhavefinishedwithyourmobilephoneyouwillbeabletoburyitinthegardenoraplantpotandwaitforittoflower.Abiodegradable生物可降解的mobilephonewasthismonthintroducedbyscientists.ItishopedthatthenewtypeofphonewillencourageconsumerstorecyclE.Scientistshavecomeupwithanewmaterialoverthelastfiveyears.Itlookslikeanyotherplasticbutovertimeitcanbreakdownintothesoilwithoutgivingoutanypoisonouschemicals.BritishresearchersusedthenewmaterialtodevelopaphonecoverthatcontainsasunflowerseeD.Whenthiscoverturnsintowasteitformsnitrates硝酸盐.Thesefeedtheseedandhelptheflowergrow.We’veonlyputsunflowerseedsintothecoversofar.Butweareworkingwithplantexpertstofindoutwhichflowerswillperformbest.MaybewecouldputrosesinnexttimE.saidonescientist.Asphonetechnologyisdevelopingsoquicklypeopleareconstantlythrowingtheirmobilesaway.Thismeansproducersareunderpressuretofindwaysofrecyclingthem.Some650millionmobilephoneshavebeensoldthisyear.Mostofthemwillbethrownawaywithintwoyearsaddingplasticheavymetalandchemicalwastetotheenvironment.A.biodegradablecovercanoffersomerelieffornatureaccordingtothescientists.Theseedisreleasedandtheflowergrowsinthepotsoyoudon’thavetoconcernyourselfwiththephonewhenyouhavefinishedusingitsaidKerryKirwantheleaderoftheresearchteam.25.Afteryouhavefinishedusingthenewtypeofmobilephone_______.A.thesunflowerseedwillcomeoutandflowerinthepotB.thephonecoverwillbreakdownverysooninthesoilC.itwillberecycledbytheproducersD.itcanchargeitselfwithelectricityinagreenway26.Thistypeofresearchisdonebecause________.A.thetechnologyofmakingphonesischangingrapidlyB.toomanywastemobilephonesmayleadtoenvironmentalproblemsC.nobodyhaseverthoughtofrecyclingmobilephonesD.producingmobilephonesusesalotofenergy27.Wecaninferfromthestory________.A.thenewtypeofmobilephonesisalreadyonthemarketB.thenewtypeofmobilephoneswillsellextremelywellC.thematerialofthenewtypeofphonesisharmfulD.otherflowersmaybeusedinthenewtypeofmobilephones
Theelephantwaslyingheavilyonitssidefastasleep.A.fewdogsstartedbarkingatit.Theelephantwokeupinaterribleanger:itchasedthedogsintothevillagewheretheyranforsafety.Thatdidn'tstoptheelephant.ItdestroyedadozenhousesandinjuredseveralpeoplE.Thevillagerswerescaredandangry.ThensomeonesuggestedcallingParbatitheelephantprincess.ParbatiBarua'sfatherwasahunteroftigersandanelephanttamer.HetaughtParbatitorideanelephantbeforeshecouldevenwalk.Healsotaughtherthedangerousartoftheelephantround-up--howtocatchwildelephants.Parbatihasn'talwayslivedinthejunglE.Afterahappychildhoodhuntingwithherfathershewassenttoboardingschoolinthecity.ButParbatinevergotusedtobeingthereandmanyyearslatershewentbacktoheroldlifE.Lifeinthecityistoodull.Catchingelephantsisanadventureandtheexcitementlastsfordaysafterthechaseshesays.ButParbatidoesn'tcatchelephantsjustforfun.Myworkshesaysistorescuemanfromtheelephantsandtokeeptheelephantssafefromman.AndthisisexactlywhatParbatihasbeendoingformanyyears.IncreasinglytheIndianelephantisangry:formanyyearsillegalhuntershaveattackeditanditshomeinthejunglehasbeenreducedtosmallpiecesoflanD.Itisnowfightingback.WheneverwildelephantsenterateagardenoravillageParbatiiscalledtoguidetheanimalsbacktothejunglebeforetheycankill.Theworkofanelephanttameralsoinvolvesloveanddevotion.A.goodelephanttamerwillspendhoursadaysinginglovesongstoanewlycapturedelephant.Eventuallytheygrowtolovetheirtamersandneverforgetthem.Theyarealsomoreloyalthanhumansshesaidassheclimbeduponeofherelephantsandsatonthegianthappyanimal.Anelephantprincessindeed!21.ForParbaticatchingelephantsismainlyto___________.A.getlonglastingexcitementB.keepbothmanandelephantssafeC.sendthembacktothejungleD.maketheangryelephantstame22.BeforeParbatistudiedinaboardingschool__________.A.shespenthertimehuntingwithherfatherB.shelearnedhowtosinglovesongsC.shehadalreadybeencalledanelephantprincessD.shewastaughthowtohunttigers23.Indianelephantsaregettingincreasinglyangryandtheyrevengebecause_____.A.theyarecaughtandsentforheavyworkB.illegalhunterscapturethemandkillthemC.theyareattackedandtheirlandgetslimitedD.dogsoftenbarkatthemandchasethem24.ThepassagestartswithanelephantstoryinordertoexplainthatinIndia_____.A.peopleeasilyfallvictimtoelephants'attacksB.theman-elephantrelationshipisgettingworseC.elephanttamersareinshortsupplyD.dogsareaspowerfulaselephants
TheTaklimakanDesertinwesternChinahasoneoftheworld'smostdifficultenvironments.Withnowaterfiercewindsandterriblesandstormsthetemperaturesgetashighas40℃insummerandaslowas-20℃inwinter.YeteventhoughitwassuchadifficultenvironmentmanypeopleinhistoryhavetraveledthroughtheTaklimakanDesert.Whywouldanyonewanttodothis?CuttingthroughthisdesertwasthefamousSilkRoadthemaintradingroutebetweenChinaandEuropE.InChinatheSilkRoadranthroughtheancientcityofKashgarinXinjiangthennorth-eastovertheTaklimakanDeserttoDunhuang.FromDunhuangtheSilkRoadwentsouth-eastthroughancientGansuandtheneasttoXi'an.Thebest-knownproducttradedalongtheSilkRoadwasofcoursesilk.ChinesesilkwastransportedtoEuropeanswholikeditbecauseitwassoft.OthergoodstransportedalongtheSilkRoadincludedgoldivoryglassfurandceramics.TheSilkRoadcouldbequitedangerous:apartfromthedifficultyoftravelingthroughthedesertrobbingwasaconstantproblem.ManymerchantstraveledwithguardstoprotectthemselvesandthegoodstheycarrieD.ToWesternersthemostfamoustraveleralongtheSilkRoadwastheItalianmerchantMarcoPoloAD1254-1324.HoweverMarcoPolowasbynomeansthefirstpersontotravelalongtheSilkRoadandtellothersaboutit.Infactin139BCand119BCtheChineseexplorerZhangQianwassentbyEmperorWutovisitthewest.ZhangQian'sjourneyhelpedbringChinesepeopleagreaterknowledgeofthewesternlands.29.WhatisthebiggesttemperaturegapintheTaklimakanDesert?A.20℃.B.40℃.C.60℃.D.80℃.30.SomeofthegoodstransportedalongtheSilkRoadincluded.A.goldandsilverB.glassandfurC.animalsandfurD.ivoryandpaper31.WhichofthefollowingisNOTtrueaccordingtothepassage?A.ZhangQianwassenttovisitthewesttwicE.B.ThemainproducttradedalongtheSilkRoadwassilk.C.MarcoPolowasnotthefirstpersontotravelalongtheSilkRoaD.D.TheTaklimakanDeserthastheworld'shottestweather.
It’sacommonphenomenonthatmodernpeoplenowhavedifficultysleeping.Drinkingmilkisthoughttobehelpful.A.warmdrinkofmilkbeforebedhaslongbeenthebestchoiceforthosewantingagoodnight’ssleep.Butnowastudyhasfounditreallydoeshelppeoplenodoff—ifitismilkedfromacowatnight.Researchershavediscoveredthatnightmilkcontainsmoremelatonin褪黑激素whichhasbeenproventohelppeoplefeelsleepyandreduceanxiety.ThestudybyresearchersfromSeoulSouthKoreainvolvedmicebeingfedwithdriedmilkpowdermadefromcowsmilkedbothduringthedayandatnight.Thosegivennightmilkwhichcontained10timestheamountofmelatoninwerelessactiveandlessanxiousthanthosefedwiththemilkcollectedduringdaytimeaccordingtothestudypublishedinTheJournalofMedicinalFooD.Nightmilkquickenedthestartofsleepandcausedthemicetosleeplonger.Whiletheeffectofcows’milkharvestedatdifferenttimehasnotbeentestedonhumansuptonowtakingmelatonindrugshasbeensuggestedtothosewhoarestrugglingtofallasleepatnight.Previousstudieshavealsoindicatedthatmilkcanbeexcellentforhelpingsleepbecauseofthecalciumcontentwhichhelpspeopletorelax.Milkisalsosugar-freeandadditive-freewithnutritionistsrecommendingskimmedmilkasthebestchoicebeforebedasitistheleastfattening.Themorefatyoutakeinbeforebedtimethegreaterburdenyouwillputonyourbodyatnight.29.Accordingtothetextthemicefedwithdaytimemilk_________.A.startedsleepmoreeasilyB.weremoreanxiousC.werelessactiveD.sleeplonger30.Whichofthefollowingistrueofmelatoninaccordingtothetext?A.It’sbeentestedonmicefortentimesB.ItcanmakepeoplemoreenergeticC.ItexistsinmilkingreatamountD.It’susedinsleepingdrugs31.Whatcanbeasuitabletitleforthetext?A.NightMilkandSleepB.MilkandMelatoninC.LittleFatinMilkD.MilkDrinkingandHealth32.Howdoestheauthorsupportthethemeofthetext?A.BygivingexamplesB.BystatingargumentsC.ByexplainingstatisticaldataD.Byprovidingresearchresults
ResearcherswiththeUniversityofCambridgesaytheyhavethefirstrealevidenceofanewstateofmattersome40yearsafteritwasfirsttheorizeD.Knownasquantumspinliquid量子旋转水thematterstatecausesnormallyunbreakableelectronstobreakintopiecescalledMajoranafermions.Thesefermionsareanimportantdiscovery.Physicistsbelievethematerialisvitaltofurtherdevelopquantumcomputing.ComputersemployingMajoranafemuonswouldbeabletocarryoutcalculationsbeyondthescaleofmoderncomputersquicklytheysay.Quantumspinliquidexplainssomeoftheeccentricbehaviorsinsidemagnetic磁性的materials.InthesematerialstheelectronsshouldbehavelikesmallbarmagnetsalladjustingtowardsmagneticnorthwhenamaterialiscooleD.Butnotallmagneticmaterialsdothis-ifthematerialcontainsquantumspinliquidtheelectronsdon’talllineupandbecomeinvolveD.Untilrecentlywedidn’tevenknowwhattheexperimentalfingerprintsofaquantumspinliquidwouldlooklikeresearcherDr.DmitryKovrizhinsays.Thatcreatedachallengefortheresearcherssotheydecidedtoemployneutronscattering神经扫描techniquestolookforevidenceofbreak.Whattheyfoundsurprisedthem.ThefeaturesmatchednearlyexactlywithquantumspinliquidmodelstheorizedbyphysicistPhilAndersonin1973.TheresultsoftheirbreakthroughwerethenpublishedinthescientificjournalNatureMaterialsonMonday.Don’tgettooexcitedjustyetonitsapplicationsthough.Kovirzhin’sworkisonlythebeginningandaswe’veseenwithquantumcomputingthereisalotofworktobedonE.Butit’sstillexcitingregardless.It’sanimportantstepforourunderstandingofquantummatterKovrizhinsays.It’sfuntohaveanothernewquantumstatethatwe’veneverseenbefore-itpresentsuswithnewpossibilitiestotrynewthings.12.WhatcanwelearnaboutMajoranafermionaccordingtoParagraph2?A.Itisanimportantdiscovery40yearsago.B.ItisasurprisingtheoryraisedbyPhilAnderson.C.Itisakeypieceindevelopingquantumcomputer.D.Itisanunbreakableelectronsemployingcomputer.13.WhichofthefollowingcanbestreplacetheunderlinedwordeccentricinParagraph3?A.StrangE.B.Complex.C.Permanent.D.Obvious.14.Howdidtheresearchersmakethebreakthrough?A.Byadjustingmagneticmaterials.B.Byusingneutronscatteringtechniques.C.Byrepeatingmathscalculations.D.BychangingelectronicstructurE.15.Whatistheauthor’stoneaboutthefutureofquantummatter?A.NegativE.B.Doubtful.C.Indifferent.D.OptimistiC.
FromlosingweighttoquittingsmokingeachDecemberpeoplearoundtheworldmakeaNewYear'sresolution决心.Butstudieshaveshownthatdespitetheirbesteffortmostwillfail.ProfessorPeterHermanapsychologylecturerattheUniversityofTorontosaysthatthereasonswhyresolutionsfailareclear.Theyarenotrealisticinsomeorallofthefollowingrespects:peoplethinkthattheycanchangethemselvesmorequickly;theythinkthattheycanchangemuchmorethananyoneelse;ortheythinktheycanchangeeverythingmoreeasily.ProfessorHermansuggeststhattheissuemaybeacycleoffailureandrenewedeffort.whichhecallsthefalse-hopesyndrome虚妄期盼综合征.Thecyclebeginswithadifficultself-changetask.suchasovereatingorsmoking-commonyetrarelysuccessfulchanges.Whilepeoplemaymakesomeinitialprogressinthetaskeventuallytheyfailtoachievetheirgoal.HavingfailedtheyinterprettheirfailuretoconvincethemselvesthatwithafewadjustmentstheywillsucceeD.Finallytheybegintoembarkonanotherattemptandthecyclerepeats.InhispaperonthetopicProfessorHermanandhisco-authorJanetPolivywritePeopletendtomakethesameresolutionsyearafteryearvowingonaveragel0timestogetridofaparticularvice恶习.Obviouslyeveryrenewedvowrepresentsacertainfailure;otherwisetherewouldbenoneedforyetanotherattempt.Equallyobviouslyunsuccessfulattemptsdonotdecreasethechanceofmakingfuturepallsforself-changE.Eventhosewhoarefinallysuccessfulatstickingtotheirresolutionsmaketheattemptfiveorsixtimesonaveragebeforesucceeding.ExpectingtomakeabreakthroughisnotagoodwaysoProfessorHermansaysthatthebestwayofstickingtoyourresolutionistoexpectthechangeslittlebylittleratherthanamajortransformation.HetoldMailOnlineOftenthismeansscalingback缩减yourresolutiontosomethingthatisactuallymanageablE.28.WhydomostpeoplefailintheirNewYear'sresolutionsaccordingtoProfessorHerman?A.Theydoesn'tdotheirbestatall.B.Theymakeunrealisticresolutions.C.TheywanttostayunchangeD.D.Theychangethemfrequently.29.WhatdoestheunderlinedpartembarkoninParagraph3probablymean?A.UndertakE.B.Abandon.C.WelcomE.D.Represent.30.HowcanyouachieveyourNewYear'sresolutionsinProfessorHerman'sopinion?A.Setabigresolution.B.Makeabreakthrough.C.Expectgradualchanges.D.Believeinyourself.31.Whatmaybethebesttitleforthetext?A.ActionsSpeakLouderThanWordsB.ThinkTwiceBeforeYouDoC.A.BargainIsaBargainD.GoodPlanIsHalfDone
WhatDoestheLengthofYourFingersSayAboutYou?Areyouthepeace-lovingtypeortheambitiousgo-getter?YourfingerlengthmightbeacluE.Takealookatyourfingers.WouldyoubelievemeifItoldyouthatthelengthofyourfingersinrelationtooneanothercanpredictyourpersonality?IknowthatitsoundslikeoneofthosesillytestsyouseeonFacebookbutIhavetoadmitthatitisexactlycorrectformE.Here'showitworks.LookatyourthreemiddlefingersofyourhanD.Isyourindexfingerlongerthanyourringfinger?Isyourringfingerlongerthanyourindexfinger?Orarethetwoofthesamelength?Findthesituationthatbestmatchesyourhandandseeifwhatfollowsisanaccuratedescriptionofyourpersonality.●Longerringfinger:TheSweetTalkerIfyourringfingerislongerthanyourindexfingerresearchshowsthatyou'relikelyacharmingtypeandyoucanprobablytalkyourselfoutofanysituation.Othersoftenfindthispersonalitytypeirresistibleandwillgotogreatlengthstohelpyou.You'remorelikelytotakerisksandyou'regoodatproblem-solving.Peopleinthiscategorymakegreatengineerssoldiersandcrossword-puzzlesolvers.●Longerindexfinger:TheOverConfidentOneIfyourindexfingerislongerthanyourringfingerchancesareyouarefullofconfidence—possiblyeventothepointofbeingover-confidentandprouD.Youarenotnecessarilyintroverted内向的butyoudoenjoytimetoyourselfespeciallywhenyou'retryingtocompleteaproject.Youareadreampursuerwhocanmakethingshappenbutyoumaybeshywhenitcomestotakingthefirststepinarelationship.Youarealsoprobablyhappywithwhatyouhavebutyou'realwayswishingformorE.●Indexandringfingerareofthesamelength:ThePeacemakerIfyourindexfingerandringfingerareroughlyofthesamelengthyouarelikelytoavoidconflictatallcostsandseektokeepthepeaceinyourrelationships.Youarewell-organizedfaithfulandsympathetiC.Butdeepdownunderallofthatcaringandpeace-lovingyoualsohaveahot-temperedsidethatcanappearunexpectedlywhenyou'repushedtoofar.Youwilltryyourhardesttoavoidafight.Howwelldothesedescriptionsmatchyourpersonality?IwassurprisedattheaccuracyinmycasebutI'mnotgoingtotellyouwhichoneitwas!39.Whichofthefollowinghandcouldbeanengineer'shand?A.B.C.D.40.Wecanlearnfromthepassagethattheauthor________.A.isverycharmingandhelpfulB.alwaystrieshardtoavoidafightC.oftentakessillytestsonFacebookD.thinksthedescriptionssuithimwell41.Whatdoesthepassageintendtotellus?A.Howaccuratethedescriptionofthetestis.B.Thelengthoffingerscanrevealpersonality.C.Whyyourfingersarenotofthesamelength.D.Personalityisdeterminedbyyourfingerlength.42.Wherecanyouprobablyfindthetext?A.A.popularmagazinE.B.Anofficialreport.C.A.publicadvertisement.D.A.biologytextbook.
Lifemayhaveevolvedonatleastthreeplanetswithinanewlydiscoveredsolarsystem39lightyearsfromEarth.AstronomersattheNASAhavediscoverednolessthansevenroughlyEarth-sizedworldsorbitingadwarfstarinthesystem.ScientistshadpreviouslyidentifiedatinynumberofexoplanetswhicharebelievedtohavethequalitiesneededtosupportlifE.Howeverthenewsystemcontainsanunprecedented前所未有numberofEarth-sizedprobablyrockyplanetsandisbeingacknowledgedasanacceleratedleapforwardinthesearchforextraterrestrial外星球的lifE.Threeofthenewplanetsaresaidtobeparticularlypromisingbecausetheremightexistoceans.ThomasZurbuchenassociateadministratorofNASAtoldapressconferenceinWashington:ThisgivesusahintthatfindingasecondEarthisnotamatterof'if'but'when'.TheplanetswerediscoveredusingNASA'sSpitzerSpaceTelescopewhichwasabletotrackhowfasteachoftheplanetscrossedthestarTrappist-landcompletedanorbit.FromthistheresearchteamcalculatedhowfartheplanetswerefromtheirstarandthereforehowlikelytheyaretobehabitablE.NASA'sHubbleSpaceTelescopeisalreadybeingusedtosearchforatmospheresaroundtheplanets.FuturetelescopesincludingtheproposedEuropeanExtremelyLargeTelescopeandtheJamesWebbSpaceTelescopemaybepowerfulenoughtodiscovermarkersoflifesuchasoxygenintheatmospheresofexoplanets.Astronomersbelievetherecouldbeasmanyas40billionpotentiallyhabitableworldsinourgalaxytheMilkyWay.ProfZurbuchensaidthatnowwasagold-rushphaseinthesearchfortheseexoplanets.9.Whatmakesthenewdiscoverysignificant?A.AmplemarkersoflifeB.ThepotentialtosupportlifE.C.GreatdistancefromEarth.D.ThesearchforextraterrestriallifE.10.Whathelpsexploreatmospheresaroundtheexoplanets?A.SpitzerSpaceTelescopE.B.HubbleSpaceTelescopE.C.EuropeanExtremelyLargeTelescopE.D.JamesWebbSpaceTelescopE.11.Whatmaybethebesttitleforthetext7A.NewSolarSystemFoundB.SecondEarthDiscoveredC.WhytoExploreOuterSpaceD.Gold-RushStagetoCome
EveryAustralianchildisbroughtuponVegemite维吉米特黑酱!Yesthisdarkcoloredfoodpastemadefromyeastextract酵母膏isputonfreshbreadandtoastasasnackbreakfastlunchontherunorwhenthere'sbasicallynothingelseleftinthehousetoeat.Ittakestimetoadapttoitforthosenotusedtoit.SimplywatchoverseasvisitorsmakefaceswhentastingitforthefirsttimefoundineveryindigenousAustralianhome!Infactitisconsideredanationalfoodandculturalsign.Vegemitehasaninterestinghistory.MorethanninetyyearsagoaleadingAustralianfoodtechnologistwasgiventhechallengeofcreatingafooditemfromaby-productofthebeermanufacturingprocess.Thisby-productwasdevelopedintoapurevegetableextractspreadforuseonbreadandtoast.IthassincefounditswayintomanyAustralianhomes.BeforeWorldWarIIitwasconfirmedbytheBritishMedicalAssociationforitsmedicinalbenefitsasanutritionallybalancedfoodforpatients.ItbecameveryimportantduringWorldWarII.Asaresultoftheheavydemandbythearmedforcesthesuppliestocivilianswererationed限量withthefollowingmessagegivenbythegovernmentVegemitefightswiththemenupnorth!Ifyouareoneofthosewhodon'tneedVegemitemedicinallythenthousandsoftheinjuredareaskingyoutodenyyourselfofitforthetimebeing.AfterthewarwithmanybabiesbornVegemitewasconfirmedasanecessarysourceofVitaminB1B2forbabies.9.WhatdoestheunderlinedwordindigenousinParagraph1mean?A.Rich.B.NativE.C.RemotE.D.New.10.What'sthepurposeofthemessagegivenbythegovernment?A.ToencourageAustralianstofightfortheirnation.B.TotellpeopleVegemitehashighnutritionalvaluE.C.TosuggestthatpeopleleaveVegemitetothearmy.D.ToinformVegemitehasmedicalfunctions.11.TheauthoristryingtoshowusthefactthatVegemite________.A.hasbeenapartofAustralianhistoryB.isakindofpopularfoodforbabiesonlyC.ispopularineveryEnglish-speakingcountryD.hasbecomeafavoritefoodforoverseasvisitors
Plantsareveryimportantlivingthings.Lifecouldnotgooniftherewerenoplants.Thisisbecauseplantscanmakefoodfromairwaterandsunlight.Animalsandmancannotmakefoodfromairwaterandsunlight.Animalsgettheirfoodbyeatingplantsandotheranimals.ThereforeanimalsandmanneedplantsinordertolivE.Thisiswhywefindthattherearesomanyplantsaroundus.Ifyoulookcarefullyattheplantsaroundyouyouwillfindthattherearetwokindsofplantsfloweringplantsandnon-floweringplants.Floweringplantscanmakeseeds.Theseedsareprotectedbythefruits.Somefruitshaveoneseedsomehavetwothreeorfourandsomehavemanyseeds.Butafewfruitshavenoseedsatall.Anexampleofafruitwithoutseedsisthebananafruit.Mostnon-floweringplantsdonotgrowfromseeds.Theygrowfromspores胚芽Sporesareverysmall.Somesporesaresosmallandlightthattheycanfloatintheair.Wemaysaythatsporesarequitethesameasseeds.Whenthesesporesareallonwetandshadyplacestheyusuallygrowintonewplants.62.9.Themainideaofthefirstparagraphisthat______.A.plantsareimportantforlifeB.plantscannotgrowwithoutairC.therearemanyplantsintheworldD.wecannotlivewithoutwater63.10.Whatcanweinfer推断fromthepassageA.Ofalllivingthingsanimalsaremost.B.Sporesareseeds.C.Allfruitsoffloweringplantshaveseeds.D.Withoutplantsmanwilldieout.64.11.Whatisthemeaningoftheunderlinedword?A.Kept.B.GuardeD.C.PreventeD.D.Surrounded65.12.Thispassagemaybetakenfrom______.A.amedicinebookB.anovelC.asciencemagazineD.anexperimentreport
Scientiststhisweekannouncedthatlightningcantravelmuchfartherandlastmuchlongerthanpreviouslythought.TheconclusionisbasedonobservationsofastorminOklahomahatproducedalightningbolt霹雳nearly200mileslong.nearlyhalfthewidthofthestatE.Thelongest-lastingflashwasobservedinsouthernFrancE.whereasingleflashin2012lastedfor7.74seconds.Mostlightningboltslastlessthanasecondandtravelonlyafewmiles.Weshouldbemoreawareoflightningifwccanhavelightninghatcantravel200miles.saidRandyCervenythespokesmanonweatherandclimateextremesfortheWorldMeteorologicalOrganizationwhichaddeD.forthefirsttimelightningtoitslistofextremeweatherevents.Thislistincludesrecordsforheatcoldwindspeedrainfallandotherevents.ScientistssaidthattheOklahomalightningboltshotfromTulsaOklA.westwardnearlytotheTexasborder.Ittouchedthegroundinseveralplaces.ThelightningcanstarttensorhundredsofmilesawayandthencomebacktowherewearE.That'swhywehavetobecarefulofwherethelightningiscomingtogroundeventhoughthestormispast.OfcoursenotallstormshaveextremelightninglikethatobservedinOklahomanandFrenchstorms.TheOklahomaboltcameinthemidstofaparticularlybadpatchofweatherearlyonJune202007.Mostlightningwillstrikewithinthe30-30rulesaidDr.Cerveny.The30-30ruleisonethatwestillwanttostressandmakesurepeopleareawareof...butitdoesconfirmthatlightningcanhitfarfromwherethestormactuallyis.The30-30rulestipulates规定thatifthunderfollowslightningwithin30secondspeopleshouldgoinsidefor30minutes.Ifitlakeslongerit'ssafetostayoutsidE.Studyinglightningisimportantbecauseitcanbefatalwhenitstrikes.Thisyear35deathshavebeenblamedonlightningstrikeraccordingtodatafromtheNationalOceanicandAtmosphericAdministration.That'sthehighestdeathtollrelatedtolightningstrikesinanysingleyearsince2007reportsTheWeatherChannel-Thoughthunderisjustthesoundoflighteningtherumble隆隆声arrivesafterthelightflashduringastorm»becauselighttravelsmuchfasterthansounD.Theboomingsoundisashockwavecausedbytherapidexpansionofairsuddenlyheatedbythelightningholt.61.Accordingtotheauthoritieslightningmay.A.causeasgreatharmasasevereearthquakeB.parallelhurricanesintheirharmtohumansC.impactonpeopleinalargerareathanrainsD.befarmoredifficulttoforecastthanstorms62.The30-30ruleisestablishedloshow.A.whenwecancarryoutobservationsonlightningboltsB.whattherelationshipisbetweenlightningandastormC.wherelightningmaypossiblyreachandcausedamageD.howwemightkeepourselvessafefromalightningbolt63.Wecanconcludefromthepassagethat.A.thelongerdistanceaboltcoversthemoredangerousitmaybeB.lightningboltstendtotakeplaceinextremelyhotsummerdaysC.wemustn'tstopcaringabouttheboltsuntilIheycometoanendD.wherethereisnostorm.thereisnodangerfromlightning64.Thepassagetellsusabout.A.anapplicationinlightningB.anupdateonlightningC.anexperimentonlightningD.ananalysisoflightning
It’swellestablishedthatpeoplewithloweconomicstatusarethehardesthitbythecurrentobesitypandemic肥胖症aswellasrelatedhealthproblemssuchasdiabetes.PoorhealthcarestressunhealthylifestylesandalotofcheapjunkfoodareallthoughttoplayarolE.Butanewstudysuggeststhere’sasubconscious潜意识componenttoo.Whenresearchersmerelyledstudyvolunteerstoconsiderthemselveslow-classtheyweremorelikelytopreferchooseandeatlargeramountsoffoodaswellashigher-caloriefoods.ThefindingspublishedintheProceedingsoftheNationalAcademyofSciencesreflectwhat’sbeenseeninavarietyofanimals.Thustheauthorsassumethatthementalproblemmaybeanevolutionaryholdover遗贸物intendedtoimprovesurvivalbycompensatingforalackofsocialandmaterialresources.Moreimportantforhumansthefindingssuggestthatwemayno!beabletodealwithobesitybyjustimprovingaccesstohealthierfoodsandpromotingexercisE.ForthestudypsychologyresearchersatNanyangTechnologicalUniversityinSingaporedraftednearly500healthyparticipantsfortwoexperiments.Inthefirsttheteamhad101participantscompleteataskinwhichtheywereshownaladderwithtenstepsandtoldtoselectwhichsteptheywereonrelativetoeitherawealthywell-educatedpowerfulpersonorapooruneducatedunimportantperson.Nexttheparticipantsgottopickfoodsfromanimaginedbuffet.Takingintoaccountthingslikeeachparticipant'snormaleatingpatternhungerandgendertheresearchersfoundthatthosewhorankedtheirsocialstatuslowerchosemorefoodandmorehigh-caloriefoodsthanthosethatrankedthemselvesashavingahighersocialstatus.Intheotherexperimentresearchersgave167participantsthesamesocioeconomicrankingtaskthenaskedthemtomatchhighcaloriefoodspizzahamburgersfriedchickenandlowcaloriesfoodsvegetablesandfruitswitheitherpleasantorunpleasantdescriptorssuchastastyornasty.Againthosewholandedlowerontheladderhadatendencytopreferthehigh-calorieThesefindingssuggestthatthethoughtoflowsocialstandingmaybecriticallylinkedtoobesityriskviaincreasedintakeofcaloriestheauthorsconcludE.Assuchthesubjectiveexperienceoflowsocialstandingmaybeanotherbarriertoimprovinghealth.62.Whatdoestheauthorwanttorevealinthefirstparagraph?A.Moreandmorepeopletendtosufferfromdiabetes.B.UnhealthylifestylescontributetoobesitypandemiC.C.SubconsciousplaysapartincausingobesitypandemiC.D.low-classpeoplearelesslikelytobeaffectedbydiabetes.63.Whatisthepossiblelinkbetweenlow-classpeopleandanimals?A.Consumptionoflargeramountsoffoodresultsfromdesireforsurvival.B.Low-classpeopleandanimalsareeasilyaffectedbymentaldisabilities.C.Creaturesconsuminghigher-caloriefoodsconsiderthemselveslow-class.D.humansandanimalshavebothconsumedmuchfoodduringevolution.64.Howcanhumansdealwithobesitycompletelyaccordingtothefindings?A.Bycarryingoutthetwoexperiments.B.Byadoptingcomprehensiveapproaches.C.Byaccessinglargeamountsofhealthyfoods.C.BygettinginvolvedinlotsofphysicalexercisE.65.Thepassagemainlyintendstoinformusthat.A.findingsremaintobeprovedB.obesitypandemicrepresentsrisksC.lowsocialstandingruinsdignityD.positivethoughtshelpstayinshape
ResearcherssaycurrentexerciseguidelinesareunrealisticandarguethatdoctorsshouldsometimesadvisesmallincreasesinactivityinsteaD.Theywarnthe150-minuteweeklytargetisbeyondthereachofsomepeople-particularlyolderindividuals.AndstrivingtoreachthesegoalscouldmeanthebenefitsoflighterexerciseareoverlookeD.ButpublichealthofficialssaycurrentrecommendationshaveprovenbenefitsinloweringtheriskofheartdiseasE.ThereisincreasingevidencethatinactivityislinkedtoheartdiseaseType2diabetes糖尿病andsometypesofcancer.UKguidelinesforadultsrecommendatleasttwo-and-a-halfhoursofmoderateactivityaweekinshortperiodsof10minutesormorE.ButintwoseparatearticlesintheBMJexpertsarguethemessageneedstochangewithgreateremphasisonmakinginactivepeoplemovemorE.ProfPhilipedeSoutoBarretoattheUniversityHospitalofToulouseadvisespeoplewhoaresedentary久坐的tomakesmallincrementalincreasesintheiractivitylevels-ratherthanpushingtoachievecurrentgoals.Hepointstopreviousstudieswhichshowevenshortperiodsofwalkingorjust20minutesofvigorousactivityafewtimesamonthcanreducetheriskofdeathcomparedtopeoplewhodonoexercisE.InthesecondarticleProfPhillipSparkingoftheGeorgiaInstituteofTechnologysaysdoctorsshouldtailortheiradvice---particularlyforolderpatients.HesuggestsusingGPvisitsforpeopleover60todiscussrealisticoptionstoincreaseactivity---suchasgettingpeopletostandupandmoveduringTVcommercialbreaks.ProfKevinFentonatPublicHealthEnglandsays:Everyoneneedstobeactiveeveryday–--shortperiodsof10ormoreminutesofphysicalactivityhaveprovenhealthbenefitsbutgetting150minutesormoreofmoderateactivityeveryweekistheamountweneedtopositivelyimpactonawiderangeofhealthconditions.Thisincludesreducingtheriskofheartdiseaseandtype2diabetes.12.Whatisthecurrentexercisegoalmentionedinthepassage?A.10-minuteexerciseB.20-minuteexerciseC.60-minuteexerciseD.150-minuteexercise13.Whatcanwelearnfromthesecondparagraph?A.A.10-minuteexercisehaslittleeffectonthehealth.B.Heartdiseaseshappeneasilytotheoldinactivity.C.Two-and-a-halfhoursofexerciseisnotnecessary.D.Inactivityeasilybringsaboutmanyseriousdiseases.14.WhatisthesuggestionofProf.PhilipedeSoutoBarretoaccordingtothethirdparagraph?A.PeopleshouldspendlesstimeonexercisE.B.Peopleshouldlowertheiractivitylevels.C.Peopleshouldincreaseexerciseproperly.D.Peopleshouldachievetheircurrentgoals.15.WhichofthefollowingisTRUEaboutcurrentexerciseguidelines?A.Theyareimpractical.B.TheyarereasonablE.C.Theyhavenoeffectonus.D.TheyarepopularwithpeoplE.
DidyouhearwhathappenedtoAdamLastFriday?LindseywhisperstoTori.WithhereyesshiningToribragsYoubetIdidSeantoldmetwodaysago.WhoareLindseyandToritalkingabout?ItjusthappenedtobeyourstrulyAdamFreedmamIcantellyouthatwhattheyaresayingisanotniceandbnoteventruE.StillLindseyandToriaren’tverydifferentfrommoststudentshereatLintonHighSchoolincludingmE.Manyofourconversationsaregossip闲话.Ihavenoticedthreeeffectsofgossip:itcanhurtpeopleitcangivegossipersastrangekindofsatisfactionanditcancausesocialpressuresinagroup.Animportantnegativeeffectofgossipisthatitcanhurtthepersonbeingtalkedabout.Usuallygossipspreadsinformationaboutatopic-breakupstroubleathomeevendroppingout-thatapersonwouldratherkeepsecret.Themoreembarrassingorshamefulthesecretisthejuicierthegossipitmakes.ProbablytheworsttypeofgossipistheabsoluteliE.Peopleoftenthinkofgossipersasharmlessbutcruelliescancausepain.Ifweknowthatgossipcanbeharmfulthenwhydosomanyofusdoit?Theanswerliesinanothereffectofgossip:thesatisfactionitgivesus.Sharingthelatestrumor传言canmakeapersonfeelimportantbecauseheorsheknowssomethingthatothersdon’t.Similarlyhearingthelatestrumorcanmakeapersonfeellikepartoftheingroup.Inotherwordsgossipissatisfyingbecauseitgivespeopleasenseofbelongingorevensuperiority优越感.Gossipalsocanhaveathirdeffect:itstrengthensunwrittenunspokenrulesabouthowpeopleshouldact.ProfessorDavidWilsonexplainsthatgossipisimportantinpolicingbehaviorsinagroup.TranslatedintohighschooltermsthismeansthatifeverybodyyouhangaroundwithislaughingatwhatJohnworeorwhatJanesaidthenyoucanbetthatwearingorsayingsomethingsimilarwillgetyouthesamekindofnegativeattention.Thedosanddon’tsconveyedthroughgossipwillnevershowupinanystudenthandbook.Theeffectsofgossipvarydependingonthesituation.ThenexttimeyoufeeltheurgetospreadthelatestnewsthingaboutwhyyouwanttogossipandwhateffectsyourjuicystorymighthavE.8.Theauthorusesaconversationatthebeginningofthepassageto.A.introduceatopicB.presentanargumentC.describethecharactersD.clarifyhiswritingpurpose9.ProfessorDavidWilsonthinkthatgossipcan.A.providestudentswithwrittenrulesB.helppeoplewatchtheirownbehaviorsC.forceschooltoimprovestudenthandbooksD.attractthepolice’sattentiontogroupbehaviors10.Whatadvicedoestheauthorgiveinthepassage?A.NeverbecomeagossiperB.StayawayfromgossipersC.Don’tletgossipturnintoliesD.Thinktwicebeforeyougossip.
AsweallknowtreesareimportanttoourlifE.Theyprovideuswithfoodwoodandmostimportantlyoxygen.Nowthereisonemorethingwecanaddtothislist—blockingoutharmfulbacteriainwater.Thediscoverywasmadebysomescientistsandhighschoolstudentswhowereseekingforanaturalwaterfilter过滤器—onethatcouldhelppeopleindevelopingcountriesthatdon’thaveaccesstomodernwatersystems.TheresearchersledbyRohitKarnikaprofessordecidedtoturntotreesforhelpbecausetheywereabletoallowliquidtoflowthroughwhileblockingoutairbubbles气泡.Theybeganbycutting1.5-inch-widesectionsoftreebarkfromthebranchofawhitepinetreE.Theresearchersthentestedthewood’sfilteringabilitybypouringwatercontainingreddyeparticles染料颗粒ofdifferentsizesthrough.Totheirsurprisetheyfounditwaseffectiveintrappingalltheparticles.EncouragedtheteamdidanotherexperimentthistimewithwatercontainingbacteriA.Sureenoughthebarkheldback99%ofthebacteriaallowingonly1%toflowthrough.Mr.Karniksaidthebarkwasabletofilterwatercontainingmuchsmallerparticles.ThismeansthatitcanbeusedtogetridofmostofthebacteriA.Howeverwhattroublesthemisthattreebarkcannotholdbackviruseswhichtendtobemuchsmaller.Thoughtheexperimentissuccessfulwemustrememberonething—thebarkonlyworkswhendamp.Thismeansthatbeforethisnaturalfiltercanbeputtopracticalusetheresearcherswillhavetofigureouthowtokeepthebarkdamporfindawaytokeepthebark’sgreatfilteringabilityevenwhenit’sdry.ButthestudyisnotdonE.Theresearchersplanontestingothertypesoftreesincludingthosefloweringtrees.Theythinkthosemaybemoreeffectiveintrappingsmallerparticlesandevenviruses.32.Howwillthediscoveryaffecttheworld?A.Noharmfulbacteriawillbefoundinwater.B.TherewillbenowaterpollutionaroundtheworlD.C.MorepinetreeswillbeplantedaroundtheworlD.D.Cleanwaterwillbemoreaccessibleindevelopingcountries.33.Whatproblemtroublestheresearcherswhenusingthetreesbarkasawaterfilter?A.VirusescannotbepreventeD.B.Treebarkshouldbewet.C.It’shardtoremoveairbubbles.D.Notallbacteriacanbeheldback.34.Whydoestheteamplantodootherexperiments?A.Tofindothernaturalwaterfilters.B.Toimprovethefilteringabilityofothertrees.C.Tofindawaytokeepthebarkwet.D.Totestthefilteringabilityofothertrees.35.Inwhichcolumnofanewspapercanwereadthistext?A.CulturE.B.SciencE.C.LifestylE.D.Society.
Artificialintelligencecanidentifyskincancerinphotographswiththesameaccuracyastraineddoctorssayscientists.TheStanfordUniversityteamsaidthefindingswereincrediblyexcitingandwouldnowbetestedinclinics.EventuallytheybelieveusingAIcouldrevolutionizehealthcarebyturninganyone’ssmart-phoneintoacancerscanner.TheAIwasrepurposedfromsoftwaredevelopedbyGooglethathadlearnedtospotthedifferencebetweenimagesofcatsanddogs.Itwasshown129450photographsandtoldwhattypeofskinconditionitwaslookingatineachonE.Itthenlearnedtospotthehallmarksofthemostcommontypeofskincancer:carcinomaandthemostdeadly:melanoma黑色素瘤.Onlyonein20skincancersaremelanomayetthetumor肿瘤accountsforthree-quartersofskincancerdeaths.TheexperimentdetailedinthejournalNaturethentestedtheAIagainst21trainedskincancerdoctors.OneoftheresearchersDrAndreEstevatoldtheBBCNewswebsite:Wefindexcitedlyingeneralthatweareonparwithexcellentskincancerdoctors.Howeverthecomputersoftwarecannotmakeafulldiagnosisasthisisnormallyconfirmedwithatissuebiopsy活检.DrEstevasaidthesystemnowneededtobetestedalongsidedoctorsinthecliniC.TheapplicationofAItohealthcareiswebelieveanincrediblyexcitingareaofresearchthatcanbeleveragedtoachieveagreatdealofsocietalgoodhesaiD.OneparticularroutethatwefindexcitingistheuseofthisalgorithmonamobiledevicebuttoachievethiswewouldhavetobuildanappandtestitsaccuracydirectlyfromamobiledevicE.Incredibleadvancesinmachine-learninghavealreadyledtoAIbeatingoneofhumanity'sbestGoplayers.AndateamofdoctorsinLondonhavetrainedAItopredictwhentheheartwillfail.12.Fromthepassagewecaninferthat________.A.ArtificialIntelligencemustreplacehumanonedayB.wecanuseArtificialIntelligencetocureskincancersC.wecanusesmart-phonetoscanourskinatpresentD.theresearchwillbeofgreathelptousandourhealthcare13.WhichonewillheagreewithaccordingtoDrEsteva?A.ArtificialIntelligencehasbeatenallofhumanity’sbestGoplayers.B.ArtificialIntelligencecouldsupportassessmentsbyGPs.C.Westillneedprofessionaldoctorswiththehelpofthesystem.D.TherearetoomanydisadvantagesforArtificialIntelligencE.14.TheunderlinedwordsonparwithinPara4likelymean________.A.inferiortoB.equaledbyC.superiortoD.oppositeto15.What’sprobablythebesttitleofthispassage?A.CancerDoctorsAreOutB.AnAPPScanningSkinCancersC.ArtificialIntelligence—changeourfutureD.ArtificialIntelligence—asgoodascancerdoctors
ShynessisthecauseofmuchunhappinessforagreatmanypeoplE.Shypeopleareanxiousandself-conscious;thatistheyareconcernedwiththeirownappearanceandactionstoomuch.Negativethoughtsareconstantlyoccurringintheirminds:WhatkindofimpressionamImaking?Dotheylikeme?DoIsoundstupid?AmIwearingunattractiveclothes?Itisobviousthatsuchuncomfortablefeelingsmustaffectpeopleunfavorably.A.person'sself-conceptisreflectedinthewayheorshebehavesandthewayapersonbehavesaffectsotherpeople'sreactions.Ingeneralthewaypeoplethinkaboutthemselveshasadeepeffectonallareasoftheirlives.Shypeoplewhohavelowrespectarelikelytobepassiveandeasilyinfluencedbyothers.Theyneedfaiththattheyaredoingtherightthing.Shypeopleareverysensitivetocriticism.Itmakesthemfeelinferior自卑.TheyalsofinditdifficulttobepleasedbypraisesbecausetheybelievetheyareunworthyofpraisE.A.shypersonmayrespondtoapraisewithastatementlikethisone:You'rejustsayingthattomakemefeelgoodIknowit'snottruE.Itisclearthatwhileself-awarenessisahealthyqualityoverdoingitisharmful.Canshynessbecompletelygotridoforatleastreduced?Fortunatelypeoplecanovercomeshynesswithdeterminationsinceshynessgoeshandinhandwithlackofself-respect.Itisimportantforpeopletoaccepttheirweaknessaswellastheirstrengths.Eachoneofushashisorherowncharacteristics.Weareinterestedinourownpersonalways.ThebetterweunderstandourselvestheeasieritbecomestoliveuptoourchancesforarichandsuccessfullifE.9.Thefirstparagraphismainlyabout________.A.theeffectofshynessonpeopleB.thecauseofshynessC.thefeelingsofshypeopleD.thequestionsinthemindsofshypeople10.Accordingtothewriterself-awarenessis________.A.harmfultopeopleB.ahealthyqualityC.thecauseofunhappinessD.aweakpointofshypeople11.TheunderlinedworditinParagraph3refersto________.A.shynessB.criticismC.sensibilityD.praise12.Wecanlearnfromthepassagethatshynesscan________.A.havenothingtodowithlackofself-respectB.helpustoliveuptoourfulldevelopmentC.enableustounderstandourselvesbetterD.beovercomewithdetermination
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