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When several different people look at the same person, it is not unusual for each of them to see dif...
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Althoughmanhasknownasbestosformanyhundredsofyearsitwasnotuntil160yearsagothatitwasminedforthefirsttimeontheNorthAmericancontinent.H.W.JohnsownerofaNewYorkCitySupplyShopforrooferswasresponsiblefor对负责theopeningofthatfirstminE.Mr.JohnswasgivenapieceofasbestoswhichhadbeenfoundinItaly.Heexperimentedwiththematerialandthenshoweditssurprisingpowerstohiscustomers.Afterputtingonapairofasbestosgloveswhichlookedmuchlikeordinaryworkgloveshetookred-hotcoalsfromthefireplaceandplayedwiththeminhishands.Howastonishedthecustomersweretodiscoverthathewasnotburnedatall.Youcanwellimaginethathehadincreasingbusinessinasbestosroofingmaterials.HoweverbecauseitwasveryexpensivetotransportcarrythemfromItalytotheUnitedStatesMr.JohnssentoutayoungscientisttoseekasourcenearerhomE.Thisyoungmanfoundgreatvein岩脉intheprovinceofQuebecinCanadA.Eversince1881Quebechasledtheworldintheproductionofthisunusualmineralwhichismadeupofmagnesiumsiliconironandoxygen.WhenitisminedtheasbestosisheavyjustasyouwouldexpectamineraltobE.Whenitisseparatedastrangethinghappens;therockbreaksdownintofinesoftsoapyfibres纤维.Scientistsdonotknowwhytherockcanbeseparatedeasilyintothreads线buttheyhavefoundthousandsofusesofthisfireproofmaterialoftheso-calledclothofstone.1.Whichtitlebestexpressesthemainideaofthispassage?A.AsbestosminedinCanadaB.FireproofmatterC.A.wondermineralD.A.newroofingmaterial2.Johnsprovedhisabilityasasalesmanby_______.A.goingintoroofingbusinessB.carryingasbestosfromItalyC.sendingatrainedscientistD.showingtheuseofasbestosgloves3.Whichisthemostimportantcharacterofasbestosthattheauthorwantstoshowus?A.ItislikethreaD.B.Itfeelssoapy.C.Itburnseasily.D.Itisunusuallyheavy.4.Theauthor’smainpurposeinwritingthispassagewasto_______.A.showtheneedformorescientistsB.compareasbestoswithothermineralsC.increasethesalesofasbestosD.presentfactsaboutasbestos
A.mobilephoneisnolongerjustaphone--itisalsoamusicplayervideocameraandpersonalorganizer.Andmobilephoneswithtelevisionprogrammingarejustaroundthecorner.Butthemorefunctionscellphonemanufacturersaddthegreatertheamountofpowerthephonesuseandthelesspracticalrunningthemonlithium锂batteriesbecomes--sotheracetofindaviablealternativeison.Twooftheworld'sbiggestelectronicsmakersHitachiandToshibaarecurrentlycompetingagainsteachothertocomeupwithanalternativemostlikelytobemicrofuelcells.ThetaskhasbeensetbyJapan'ssecondlargestmobilephoneproviderKDDIwhichwantsitscustomerstosoonbeabletousespecialtelevisionprogrammingontheirhandsetsandhasaskedthetwoelectronicscompaniestocomeupwithabetterpowersourcE.HitomiMurakamiofKDDIsaysbattery-operatedmobilephonescannotkeepupwiththenewapplications.We'relookingatvariouswaystoexpandcontentandservicesthatwecanprovidetothepeoplE.Andwedon'twanttohavebatteryissuesdelayingusfromdoingthathesays.Hitachi'sAtsushiMoriharasaysitisacriticalraceforbothofthecompaniesastheresultingproductwillhaveamajorimpactonthemobilemarketinthefuturE.Weareincompetitionandit'suptobothofustocomeupwithagoodproduct.A.productthatwillsatisfyKDDI'sneeds.IthinkIcangoasfartosaythatthewinnerwilltakeall.Miniaturizeddirectmethanol甲醇fuelcellsaredifferentbatteriesinthattheycreatepowerinsteadofsimplystoringit.Thatpowerismadebynewtechnologyutilizingcheapmethanol.Ifallgeestoplancome2007Japanesephoneuserswillnotuseanelectricchargertopowertheirmobilestheywillinsteadcarryasmallbottleofmethanolandwithjustafewsquirtstheywillhavepowerfortheirphones.Butthemethodhasitsdownsidesincludinghowpassengerswillbeabletotakesmallmountsofflammablemethanolonairliners.FumioUenoofToshibasaysthatoncedevelopedtheusesofminiaturizeddirectmethanolfuelcellshaveendlesspossibilities.Thelithiumbatteriesarebecomingimproperforthecellphonebecause______.A.thereisatelevisioninthephoneCitisinconvenienttouseB.itcan'tprovideenoughpowerDpeoplehavefoundsubstitutesAccordingtothepassageToshiba______.A.isincriticalcompetitionwithKDDIB.willprobablybeatitsrivalC.attachesgreatimportancetomethanolfuelD.isoneofthelargestbatteryproviderWhichofthefollowingisNOTthecharacteristicofmethanolfuel?A.EasytocatchfirE.CPortablE.B.InexpensivE.DAvailableeverywherE.Thebesttitleforthepassageis______.A.Searchforbetterphonepower.B.Developmentofcellphonebattery.C.Competitionbetweentwoelectronicfirms.D.Advantageanddisadvantageofmethanolfuel.
Steppingintoapoolofwateriscommonenoughbutwhocouldeverimaginesteppingintoapooloffish?InFebruaryof1974BillTappanAustralianfarmersawarainoffishthatcoveredhisfarm.Howsurprisedhemusthavebeenwhenheheardmanyfishhittingagainsthisroof!Whatcausedthisstrangeoccurrence?Thisisaquestionthathadlongpuzzledpeoplewhostudyfish.Theanswerturnedouttobeacombinationofwindandstorm.WhenitisspringinthenorthernpartoftheworlditisfallinAustraliA.ThroughouttheautumnseasonterriblestormsariseandrainsfloodthelanD.ThestrongwindssweepoverAustralialikehugevacuumcleanerscollectingseaweedpiecesofwoodandevenschoolsoffish.StrongwindsmaycarrythesebitsofnatureformanymilesbeforedroppingthemonfieldshousesandastonishedpeoplE.Althoughtheyseemunusualfish-fallsoccurquitefrequentlyinAustraliA.WhenBillTappwasaskedtodescribethesceneoffishheremarkedTheylooklikemillionsofdeadbirdsfallingdown.Hisstatementisnotsurprising.Thewondersofthenaturalworldareascommonasrain.Naturewithitsinfinitewonderscancreatewaterfallsthatflowupwardandfishthatfalloutofthesky.56.Whatisthispassageabout?A.A.sadstory.B.A.rainoffish.C.Australia’snorthernpart.D.Thedamagedonebyfloods.57.Fish-fallsoccurinAustralia_________.A.quiteoftenB.onlargefarmsC.onlyinwinterD.whentheairiscalm58.Itisaknownfactthat________.A.oneshouldwatchwhereonestepsB.BillTappisascientistwhostudiesfarmingC.thenaturalworldcannevercreatewaterfallsthatfallupwardD.theseasonsinthesouthernpartaredifferentfromthoseinthenorthernpart59.Thewordinfiniteisclosestinmeaningto_________.A.easyB.difficultC.countlessD.dangerous
CHINACoalminesclaim使失踪morelivesA.COALmineblast爆炸inJixiHelongjiangleftmorethan100minersdeadonThursday.TenminesinJixiwereorderedtostopproduction.Thegovernmenthastriedtoshutdownthousandsofsmallillegal非法的minesinthecountrythatdonotmeetsafetystandards标准.MIDDLEEASTBomberscontinuestokillPALESTINIANSkilled32IsraelisinthreemajorattacbetweenTuesdayandThursday.Thereweretwosuicidebombing自杀性爆炸andamilitant武装的attackonJewishsettlement.TheyledtooneofthehighestIsraelideathtolls死亡人数insuchashortperiodoverthelasttwoyears.CHINAYoungpeoplestandtallTheaverageheightofChineseyoungpeoplehasrisenby6centimetersparedtothatof20yearsago.Thisyearfarexceeds超过theword’saveragegrowthspeeD.A.surveyonhealthconductedbyapanel调研组ofChinesestudentsfoundtheresults.Accordingtotheworldaveragelevelyouthsgettallerby1cmevery10years.CANADATalkingaboutworldissue援助TheGroupofEightG8—theUSJapanGermanyBritainFranceItalyCanadaandRussia----willholdasummit峰会onJune26and27inKananaskisCanadA.TheG8aretherichestandmostpowerfulcountriesintheworlD.G8leadersandsomeAfricanpresidentswilldiscussstrengtheningglobaleconomicgrowthandhelpingAfricA.KofiAnnanUnitedNationsSecretaryGeneralwillalsoattenD.1.Thousandsofmineshavebeenshutbecause______.A.theyhaveblastB.theyproducedlesscoalC.theyareverysmallandillegalD.theydon’tmeetthesafetystandards2.Inthelast20yearstheaveragegrowthspeedofChineseyouthsexceedstheworld’saveragelevelby_______.A.1cmB.4cmC.5cmD.6cm3.What’sthepurposeoftheSummit?A.tostrengthentheglobaleconomicgrowthandhelpingsomepoorAfricancountries.B.Tomaketheseeightcountriesmuchmorepowerful.C.TohelpsomeAfricanpresidenttostrengthentheireconomicgrowth.D.KofiAnnanwillhaveanimportantspeechonworldissues.
PassageElevenSuperconductingMaterialsThestoneageTheIronAgE.Entireepochshavebeennamedformaterials.Sowhattocallthedecadesahead?Thechoicewillbetough.Welcometotheageofsuperstuff.Materialscience--oncetheleastsexytechnology–isburstingwithnewpracticaldiscoveriesledbysuperconductingceramicsthatmayrevolutionizeelectronics.Butsuperconductorsarejustpartofthepicture:fromhouseandcarstocookpotsandartificialteeththeworldwillsomedaybemadeofdifferentstuff.ExoticplasticsglassandceramicswillshapethefuturejustassurelyashavegeneticengineeringandcomputersciencE.Thekeytothenewmaterialsisresearchers’increasingabilitytomanipulatesubstancesatthemolecularlevel.Ceramicsforexamplehavelongbeenlimitedbytheirbrittleness.ButbyminimizingthemicroscopicimperfectionsthatcauseitscientistsaremakingfarstrongerceramicsthatstillretainsuchqualitiesashardnessandheatresistancE.FordMotorCo.nowusesceramictoolstocutsteel.A.firmcalledKyocerahascreatedalineofceramicscissorsandknivesthatstaysharpforyearsandneverrustorcorrodE.A.similartransformationhasovertakenplastics.High-strengthpolymersnowformbridgesice-skatingrinksandhelicopterrotors.Andonenewplasticthatgenerateselectricitywhenvibratedorpushedisusedinelectricguitarstouchsensorsforrobothandsandkaratejacketsthatautomaticallyrecordeachpunchandchop.Evenplasticlitterwhichoncethreatenedtopermanentlyblotthelandscapehasprovedamenabletomoleculartinkering.Severalmanufacturersnowmakebiodegradableforms;someplasticsix-packringsforexamplegraduallydecomposewhenexposedtosunlight.Researchersaredevelopingwaystomakeplasticsasrecyclableasmetalorglass.Besidescomposites–plasticreinforcedwithfibersofgraphiteorothercompounds–madetheround-the-worldflightofthevoyagerpossibleandhaveevenbeenprovedincombat:ahelmetsavedaninfantryman’slifebydeflectingtwobulletsintheGrenadainvasion.Someadvancedmaterialsareoldstandardwithanewtwist.Thenewestfiberopticcablethatcarrytelephonecallscross-countryaremadeofglasssotransparentthatapieceof100milesthickisclearerthanastandardwindowpanE.Butnewmaterialshavenoimpactuntiltheyaremadeintoproducts.Andthattransitioncouldprovedifficultforswitchingrequireslengthyresearchandinvestment.ItcanbesaidafirmerhandleonhowtomovetocommercializationwilldeterminethesuccessorfailureofacountryinthenearfuturE.1.Howmanynewmaterialsarementionedinthispassage?A.TwoB.ThreeC.FourD.Five2.Whydoestheauthormentiongeneticengineeringandcomputerscience?A.Tocomparethemwiththenewmaterials.B.ToshowthesignificanceofthenewmaterialsonthefutureworlD.C.Tocomparethenewmaterialstothem.D.Toexplainhisviewpoint.3.Whyistransitiondifficult?A.BecausetransitionrequiresmoneyandtimE.B.Becausemanymanufacturersareunwillingtochangetheirequipment.C.Becauseresearchonnewmaterialsisverydifficult.[D]Becauseittakes10years.4.WhereliessuccessofacountryintheNewAgeofsuperstuff?A.Itliesinresearch.B.Itliesininvestment.C.Itliesininnovation.D.Itliesinapplication.
FaceslikefingerprintsareuniquE.Didyoueverwonderhowitispossibleforustorecognizepeople?Evenaskilledwriterprobablycouldnotdescribeallthefeaturesthatmakeonefacedifferentfromanother.Yetaveryyoungchild---orevenananimalsuchasapigeon---canlearntorecognizefaces.WealltakethisabilityforgranteD.WealsotellpeopleapartbyhowtheybehavE.Whenwetalkaboutsomeone’spersonalitywemeanthewaysinwhichheorsheactsspeaksthinksandfeelsthatmakethatindividualdifferentfromothers.Likethehumanfacehumanpersonalityisverycomplex.Butdescribingsomeone’spersonalityinwordsissomewhateasierthandescribinghisfacE.Ifyouwereaskedtodescribewhatanicefacelookedlikeyouprobablywouldhaveadifficulttimedoingso.Butifyouwereaskedtodescribeanicepersonyoumightbegintothinkaboutsomeonewhowaskindconsideratefriendlywarmandsoforth.Therearemanywordstodescribehowapersonthinksfeelsandacts.GordonanAmericanpsychologistfoundnearly18000Englishwordscharacterizingdifferencesinpeople’sbehavior.Andmanyofususethisinformationasabasisfordescribingortypinghispersonality.Bookwormsconservatives保守派military军人或军事的types---peoplearedescribedwithsuchterms.Peoplehavealwaystriedtotypeeachother.ActorsinearlyGreekdramaworemaskstoshowtheaudiencewhethertheyplayedthevillain’sorthehero’srolE.InfactthewordspersonandpersonalitycomefromtheLatinpersonameaningmask.Todaymosttelevisionandmovieactorsdonotwearmasks.Butwecaneasilytellthegoodguysfromthebadguysbecausethetwotypesdifferinappearanceaswellasinactions.6.Thepassagetellsthereaders______.A.howtodescribepeople’sfacesB.howtodescribepeople’spersonalityC.howtodiffergoodpersonsfrombadonesD.howtodescribepeoplebothinwardandoutward7.Whatisthepossibleroleofthewriter?A.PsychologistB.BehavioristC.WriterD.Sociologist8.Whichofthefollowingisincorrect?A.Differentpeoplemayhavedifferentpersonalities.B.PeopledifferfromeachinappearancE.C.Peoplecandescribeallthefeaturesofothers.D.Peoplecanlearntorecognizefaces.9.Itiseasiertodescribeaperson’spersonalityinwordsthanhisfacebecause______.A.aperson’sfaceismorecomplexthanhispersonalityB.aperson’spersonalityiseasilydistinguishedC.people’spersonalitiesareveryalikeD.manywordsareavailablewhenpeopletrytodescribeone’spersonality10.Peopleclassifyapersonintocertaintypeaccordingto______.A.hiswayofactingandthinkingB.hiswayofspeakingandbehavingC.hislearningandbehaviorD.hisphysicalappearanceandhispersonality
Itishardtobelievethatafishlessthan30centimeterslongcanbedangeroustopeopleandtootherseaanimals.Yetthepiranha水虎鱼swimsinthedarkwatersofSouthAmericareadytobitewheneveritishungry.Manyfisheatplantsbutthepiranhaisoneofasmallgroupthateatsmeat.Withitssharpteethandstrongjawsthepiranhamostoftenkillsotherfish.SometimeshoweveritattackspeoplE.A.personwillnotdiefromasinglebitebutthebloodfromthewoundattractsotherpiranhas.Soonaschoolofasmanyasathousandfishgatherbythevictim.TheyallbegintobitE.Inminutesonlyaskeleton骨架isleft.Perhapsthestrangestthingaboutpiranhasisthattheyarenotalwaysdangerous.PeoplemaysafelyswimneartheminoneriverwhileinanotherriveronlyafewmilesawaymaybeattackeD.UntilseveralyearsagoyoucouldbuypiranhasintheUnitedStatespetstores.Nowthereisalawagainstbringingpiranhasintothecountrytosellthem.Manypeoplewereafraidthatthefishmightgetlooseinlakesorstreams.Theunderlinedwordschoolprobablymeans________.A.aplacetolearnknowledgeB.alargegroupC.alongriverD.smallpupilsWhyistherealawagainstbringingpiranhasintotheUnitedStates?A.Becausethereareenoughpiranhasinlakesalready.B.Becausepiranhasarenotsafetoeat.C.Becausepiranhasdietooeasily.D.Becausepiranhasmightgetlooseandattackswimmers.Whatisthemainideaofthepassage?A.Piranhasmakegoodpets.B.Piranhasare30centimeterslong.C.PiranhasswiminSouthAmericanwaters.D.Piranhascanbedangerous.
You’relostintheworldofdreamsandsleep.YourolloversmilingasyoucomeacrossaswimmingpoolfilledwithchocolatE.AndthenyourwonderfuldreambecomesanightmarewhensomeoneisscreamingGetup!It’sjustwhateveryteenagergoesthrougheachmorning!Nowthereseemstobeoneschoolthatfinallyunderstandsthatrequiringteenstoshowupat9amisnotjustcruelbutalsoharmfultoboththekidsandtheschool.TheMonkseatonHighSchoolinNorthTynesideBritainrecentlydecidedtoexperimenttoseeifthereisanydifferenceinstudentbehavioriftheyjustpushedbackthestartoftheirdaybyonehourfrom9amto10am.Andtheresultsaresurprising.SincecarryingoutthelaterstartMonkseatonhasseena28%dropintruancyevenhardlyanylatenessandbestofallhighertestscores.Oneofthereasonsisthattheteenagersaremuchhappiertohavetheextrahourofsleepbutthereisalsoascientificreasonbehindwhytheyneedtheextrasleep.Theschool’sdecisiontopushbackthetimewasbasedontheresearchdonebyOxfordProfessorRussellFosterwhopointedoutthatteenagersandadultshavedifferentsleepcyclesexplainingwhyteenagersgotobedlateandwakeuplatE.Whileadultsarewideawakeandreadyat8amteenagersarenotfullyawakeuntil10amsometimesevennoon.Teachersmayarguethattheirstudentsperformbetterinthemorningbutinfactitisbecausetheyareinthezonewhiletheirstudentsarestillsleepymakingthestudentseasiertocontrol.MemorytestsprovethatthemoredifficultclassesshouldbeintheafternoonwhenteenagersaremostwideawakE.TheMonkseatonschoolofficialsareencouragedbytheresultsandplanonvotingtomakeitapermanentchangE.What’sthebesttitleofthispassage?A.Getupearlyteenagers!B.Finallyaschoolunderstandsteenagers.C.Whydoteenagersstayuplate?D.Differencebetweenteensandadults.What’sthemeaningoftheunderlinedwordtruancy?A.gradesB.subjectsC.absenceD.classesWhatcanwelearnfromthepassage?A.TeenagersandadultshavethesamesleepcyclE.B.Teenagersarefullyawakeat10am.C.Teenagersaremuchhappiertosleepthanstudy.D.Teenagersneedtheextrasleepalsoforascientificreason.WhichofthefollowingstatementsisNOTtrueaccordingtothepassage?A.TheMonkseatonschoolissatisfiedwiththeresultofexperiments.B.Itiscruelfortheteenagerstoshowupat9am.C.TheMonkseatonschoolplanstochangetheschooltimeforever.D.Teenagersperformbetterinthemorningthanintheafternoon.
CRecentlyasurveywasdoneamong288000studentswhichshowsthattoday’straditional-agecollegefreshmenaremorematerialisticandlessaltruistic利他主义的thanatanytimeinthe19yearsofthepoll民意调查.Notsurprisinglyinthesehardtimesthestudents’majorpurposeistobefinanciallywelloff.Developingameaningfulphilosophyoflifeislessimportantthanever.Itfollowsthenthattodaythemostpopularcourseisnotliteratureorhistorybutaccounting.Interestinteachingsocialserviceandthealtruisticfieldsisatalow.Ontheotherhandenrollmentinbusinessprogramsengineeringandcomputerscienceiswayup.That’snosurpriseeither.A.friendofmineasalesrepresentativeforachemicalcompanywasmakingtwicethesalaryofhercollegeinstructorsinherfirstyearonthejob---evenbeforeshecompletedhertwo-yearassociatedegreE.Thoughit’struethatweallneedacareeritisequallytruethatourcivilizationhasaccumulatedanincredibleamountofknowledgeinfieldsfarbeyondourownandthatitwillbebetterforourunderstandingoftheseothercontributions—eitherscientificorartistiC.Similarlyitistruethatinstudyingthediversewisdomofotherswelearnhowtothink.Moreimportantlyperhapseducationteachesustoseetheconnectionsbetweenthingsaswellastoseebeyondourimmediateneeds.Weeklywereadofunionswhowentonstrikeforhigherwagesonlytodrivetheiremployeroutofbusiness.Nocompany;NojoB.Howshortsightedinthelongrun!ButthemostimportantargumentforabroadeducationisthatinstudyingtheaccumulatedwisdomoftheagesweimproveourmoralsensE.Isawacartoonrecentlywhichshowsagroupofbusinessmenlookingpuzzledastheysitaroundaconferencetable;oneofthemistalkingontheintercom对讲机:MissBaxterhesayscouldyoupleasesendinsomeonewhocandistinguishrightfromwrong?Fromthelong-termpointofviewthat’swhateducationreallyoughttobeabout.51.Accordingtotheresultofthesurveycollegestudents_______________.A.takedevelopingameaningfulphilosophyoflifemoreseriouslyB.haveawiderangeofknowledgeinmanyaspectsC.paymoreattentiontothestudyofliteratureD.haveneverbeensomaterialisticastoday52.Thestudents’criteria标准forchoosingtheirmajorstodayarelargelybasedon_________.A.theirownunderstandingofthecoursesB.thefinancialgoalstheyseekinlifeC.theinfluenceoftheirinstructorsD.thevastpotentialforthefutureeducationaldevelopment53.Whatdoesthefifthparagraphimply?A.Knowledgeinotherfieldshasnothingtodowithone’scareer.B.BusinessmanagementshouldbeincludedineducationalprogramsC.TheimportanceofabroadeducationshouldnotbeignoredD.A.goodunderstandingofthecivilizationwillmakestudentsrich.54.Theauthor’sattitudetotheeffectofstudyingthediversewisdomofothersis______________.A.positiveB.indifferentC.doubtfulD.negative55.Thewriterwrotethepassageinordertoindicatethat______________.A.collegestudentstodayarenotadiligentgenerationB.peopleengagedintechnicaljobsleadamoremeaningfullifeC.careerseekersshouldn’tfocusonimmediateinterestsonlyD.workingexperienceoutsidecollegecountsalottoone’sfuturecareer
EManydo-it-yourselfhomeownersareinterestedintryingoutsolarpowertoleamaboutthetechnologyandperhapstoprovideenergyforlimited-useapplications.Thereareavarietyofwaystofindcheapsolarpanels板includingbuyingusedandbuildingyourownwithfactoryseconds.Bothmethodswillsavemoneywhileforcingyoutolearntheins-and-outsofasolarpowerarray阵列.We'veallseensolar-poweredstreetsignsorPVpanelsbeingusedforvariouspurposesatremotelocations.Whenthoseunitsbecomecrackedorchippedandareconsideredunsafecompaniesareforcedtoreplacethemgenerallytoavoidresponsibilityissues.Becauseit'sdifficulttogetridofPVpanelsmanycompaniesifapproachedarewillingtogivethemawayortosellthemformodestprices.Dependingonthedegreeofdamagepresentexpecttoseeperformancedegradation降级intherangeof10%to60%.Amultimeter万用表canbeusedtotestthepanelbeforebuying.Ifthepanel'sfreetakeitanyway.Itcouldstillbeusefulinahomesolarproject.A.solarpanelisreallynothingbutaboxservingasacontainerforalargegroupofsolarcells.FactorysecondsolarcellsareusuallysoldoneBayatasmallpartoftheirregularcost.Thecellscomeinavarietyofsizes.Youwillneedtofigureouthowmuchpowerasinglecellproducestodeterminehowmanywillneedtobewiredtogethertoformanarray.A.simplesearchoftheInternetwillshownumeroussitesdetailinghomesolarpanelprojects.Do-it-yourselfloversaregenerallyquitegenerousinsupplyphotographsoftheirworkanddescriptionofwhatwentwrongandrightwiththeproject.Gettingcheapsolarpanelswithslightimperfectionseitherusedorthroughsalesoffactorysecondsisaperfectsolutionforhome-builtrenewableenergyprojects.Thehighnumberofsolarloversonlineprovideawealthofusefulinformation.OnlylimitedskillsarerequiredplusanunderstandingofthebasicwiringinvolveD.Allarewellwithinthetalentsofalmostanyhomehandyman.Beyondthesatisfactionofhavingcompletedtheprojectyou'llcomeawaywithafunctionalsolarpanelthatwillbeasourceofpowerforusearoundthehouseoratremotelocations.SolarenergysystemsarequicklybecomingmorepopularwithhomeownersaspricescontinuetodeclinE.72.Theauthorwritesthepassagetointroduce____.A.waysoffindingcheapsolarpanelsB.waysofsavingenergyC.awayofmakingasolarpanelD.ahome-builtenergysystem73.Whatdoesthephrasefactorysecondsinthepassagereferto?A.Second-handfactoryproducts.B.CheapbutperfectfactoryproductsC.Faultyfactorysolarcells.D.Thesecondbestfactorysolarcells74.FromParagraph5wecanlearnabouthome-builtenergyprojectsthat____.A.noneofthemarebeyondhomehandymenB.alotofusefulinformationisavailableontheInternetC.aperfectsolutionistogetcheapandperfectsolarpanelsD.understandingelectricalwiringisnotnecessarilyneeded75.Whatistheauthor'sattitudetowardsthefutureofsolarenergysystems?A.OptimistiC.B.PessimistiC.C.Indifferent.D.Doubtful
TheteagardensinSriLankaareactuallylargeestates种植园.Thebestteausuallycomesfromplantsgrownonhighgroundsthecoolhilltopswithrowsandrowsofteaplants.Theplantsareaboutonemetreapart.Theplantisoftenprunedsothatitremainsonly60to90centimetreshigh.Pruningisimportantbecauseitencouragesthegrowthoftendershootsoryoungleaves.Itisfromtheseshootsthatthebestteaisgot.Practicallyalltheteapickersarewomen.Theestatesprefertoemploywomenpickersbecausetheyaremorecareful.Theirthinfingerscaneasilyremovethetwinleavesandnewshootsfromtheplantwhicharethepartsusedforprocessing加工teA.Thepickerscarrylargebasketsintowhichtheythrowtheirpickings.A.skilledworkercanharvestbetween9to14kilogrammesoftealeavesaday.Usuallynewshootscanbepickedfromtheplantsabouteverytenorfifteendays.Processingteashootsintothefamiliardrytealeavesrequiresgreatcareandskill.Therearevariousmethodsofprocessingdependingonthetypeoftearequired.Forblackteatheyounggreenleavesarefirstspreadoutoshelvestodry.Thisprocessremovesmuchofitswaterandtheleavesbecomesoft.Afterthistheleavesarepassedthroughheavyrollers.Thisoperationwillpresstheleavesforjuiceswhichgivetheteabothitscolourandtaste.Thentheleavesarespreadoutonfloorsandlefttoferment发酵underwetconditions.Fermentationdevelopstherichtasteofblacktea.Thefermentedleavesarethendriedwithahot-airbloweruntiltheybecomerolled-upblackleaves.ThefinalstepistosortandgradethembeforetheblackteaisreadyforsaletocountriesallovertheworlD.68.Inthefirstparagraphthewordpruningmeans.A.regularcuttingoftheplantsB.frequentwateringC.regularuseofchemicalsD.growingtheplantshighinthemountain69.Oneofthereasonswhywomenareemployedtodothepickingisthat.A.theyworkharderthanmendointhepickingB.theycanthrowtheirpickingsmoreeasilyintothebasketsC.theirfingersfitthembetterforthejoB.D.theycanmoreeasilyfindthetwinleaves.70.Howmanyprocessingstepsarementionedinthelastparagraph?A.ThreE.B.Four.C.FivE.D.Six.71.Whatisthewriter’spurposeinwritingthepassage?A.Tointroducevariousmethodsofteaprocessing.B.TopersuadereaderstobuyteafromSriLankA.C.Totellastorythathadhappenedintheteagardens.D.Toinformreadersofteagrowingpickingandprocessing.
DCanitbetruethatAustralianmenspendmoretimeduringtheweekbrushingtheirteeththantheydoalonewiththeirchildren?A.newstudyfromtheUniversityofNewSouthWaleshasdiscoveredthatduringtheworkingweekAussiefathersonlyspendanaverageofjustoveraminuteeachdayalonewiththeirchildren.Australianmothersontheotherhandspendthreehoursaweeklookingaftertheirchildren—amuchgreaterdisparity悬殊thaninothercountrieslikeAmericaDenmarkItalyandFrancewherecouplesdividethechild-caremoreevenly.ThesefindingswillupsetthosewhowanttoshakeofftheperhapsunfairimageofAustraliaasalandofold-fashionedmalechauvinism大男子主义.AccordingtothestudyAustralianfathersappeartolikethefunaspectsofparenthoodbutshyawayfromthedrudgery.Sowhiletheytendtobehappytakingthekidstotheparkortosportseventstheyareunlikelytoparticipateregularlyinfeedingbathingortakingthekidstoschool.Inshortparentingisseenasawoman'sjobandaman'shobbyinAustraliA.ManypeoplebelievethatinEuropethelasttwentyyearshaveseenthearrivaloftheso-callednewman—themanwhoiswillingtosharethehouseworkandchild-carE.Thenewmannevermisseshischildren'sschoolplaysandhealwaysgetshomeintimetoreadtheirbedtimestory.IndeedaquestionnaireconductedintheUKindicatedthatalmost70ofBritishwomenthoughtthatmenwereasgoodatraisingchildrenaswomen.That'ssomethingforAussiementothinkaboutwhiletheyarebrushingtheirteeth!68.Theunderlinedworddrudgeryrefersto______.A.enjoyableactivityB.easyjobC.socialresponsibilityD.boringwork69.InAustralianparenting______.A.bothfathersandmotherstakeitasahobbyB.neitherfathersnormothersspendenoughtimeonchild-careC.parentsdon'tsharethesameamountofchild-careD.fathersdon'tlikethekidsatall70.Thepassagesaysthatthenewmanwould______.A.gohomerightafterworkB.spendmoretimeontheirworkC.readstoriestotheirchildrenD.doallthehousework71.AccordingtothepassageAustralianfathersshouldA.spendmoretimewiththeirkidsB.knowmoreabouttheirfamilyC.learnfromtheirwivesD.stayathomelonger
Everyoneagreesthatit’snecessarytoreducecarbonemissions排放物aroundtheworlD.Thereislessagreementoverexactlyhownationsshouldgoaboutachievingamorecarbon-freeplanet.Thustheenvironmentalequivalent:cap–and–tradecarbonemissionsorplaceacarbontaxonallusers?Withcap–and–tradeprogramsgovernmentslimitthelevelofcarbonproducedbyanindustry.Companiesthatholdtheiremissionsbelowthecapcanselltheirremainingallowanceonacarbonmarketwhilecompaniesthatgobeyondtheirlimitmustpurchasecreditsonthatmarket.Carbontaxesaremorestraightforward:asettaxrateisplacedontheconsumptionofcarbonwiththeideathatraisingthepricewillencourageindustriesandindividualstoconsumeless.Atthemomentcap–and–tradehastheupperhandbutdoesn’tdefeatthetaxjustyet.Supportersofthetaxarguethatacap–and–tradesystemwouldbetoodifficulttoadminister–andtooeasilygamedbyindustrieslookingtosidestepemissionscaps.Cap–and–tradeadvocatescontradictthatlikeallotherflattaxesacarboncollectionwouldrelativelyburdenlower–incomefamilieswhospendagreaterpercentageoftheirincomeonenergythanrichhouseholds.Sowhichsystemwillhavealargereffectoncarbonconsumption?A.10%carbontaxmightreducethedemandforcarbonabout5%orlessaccordingtoananalysisbytheCarbonTaxCenteranenvironmentaladvocacygroup.Thatmaynotbeenough.Businessesandgovernmentshaven’tfiguredouthowthetwocompetingsystemscanworktogetherbutintheendtheworldmayneedboth.1.Thepassagefocuseson_________.A.programsofcollectingtaxesB.systemsofreducingcarbonemissionsC.reasonsforreducingcarbonemissionsD.contradictionsbetweenthetwosystems2.Accordingtothecap–and–tradeprogramcompanies_________.A.areforbiddentoproducecarbonemissionsB.areallocatedthesameamountofcarbonconsumptionC.canselltheirremainingallowancewithintheirlimitsD.canselltheextraamountofcarbonatahigherprice3.Carbontaxesworkby_________.A.burdeningwell–offfamiliesB.encouragingindustriestoconsumecarbonC.raisingthepriceforcarbonconsumptionD.limitingthecarbonconsumptionofindustriesonly4.Theunderlinedwordcapinthesecondparagraphmostlikelyrefersto_________.A.limitB.creditC.levelD.rate5.Wecanlearnfromthepassage_________.A.carbontaxesaredifficulttocarryoutB.cap–and–tradeplaysagreaterroleatpresentC.cap–and–tradewillbepreferableinthefutureD.carbontaxeswillbepreferableinthefuture
Thephysicalmemorydump电脑死机errorisabigproblemthataffectseventhemostadvancedcomputersystems.Althoughit'squitearareerrorit'soneofthemoststoppingwhatyou'redoingandrestartingyourcomputer—makingyouloseallyourunsaveddatA.Thisisabigproblembutthereisactuallyaveryeasywaytofixit.Therearetworeasonswhythephysicalmemorydumphappens.Thefirstisprettysimpleandistodowiththehardwareandifanyofthesepiecesarenotfitforyoursystemitwillcausethephysicalmemorydump.Soifyou'verecentlyaddedanyhardwaretoyourPCthentakethatoutandseeifitworks.Theotherreasonisyoursystemtheregistry.Theregistryisabigdatabase数据库thatoperatesinthebackgroundofWindowsstoringallsortsofsettingsandinformationaboutyourPC.Theproblemwiththeregistryisthatsinceithassomanyimportantfilesinsideit'sconstantlygothundredsoffilesopeneverytimeyouuseyourPC.AndbecausetherearesomanyfilestoopenatonceWindowsisconstantlygettingconfusedleadingittosavemanyofthesefilesinthewrongway.ThesefilesgowrongwhensavedwronglymakingthemdifficultforyourcomputertoreaD.Howeverifitcan'treadthefilesatallithasnochoicebuttostopeverythingit'sdoingandrestartyourPC.Thisiswhythephysicalmemorydumperrorappearssoeasily—becausewhenaregistryfileissowrongthatitcan'tbereadyourcomputerneedstorefreshitselfimmediately.ThislatterreasonforcausingthephysicalmemorydumpisactuallyextremelycommonandthelikelihoodisthatyourPCissufferingfromitifyou'reseeingthiserror.Luckilyit'salsoincrediblyeasytofix—youjustneedtouseasoftwaretoolcalledaregistrycleanertogothroughtheregistryandfixalltheproblemsintherE.72.Fromthetextwecaninferthat________.A.thedumperroroftenhappenstoyourPCB.thedumpcanbedealtwitheasilyC.onlytheadvancedcomputerssuffersfromtheerrorD.thedumperrorcancausethedatainyourPCtobelost73.ThereasonthatyourPChasthedumperroristhat___________.A.thethehardwarelosesitsmemoryB.yourWindowsneedstobeupgradedC.youhavesavedwrongfilesinthePCD.youhavestoredtoomanyfilesinthePC.74.What’sproblemwiththeregistrywhenyourPCgoeswrong?A.Theregistercan’treadthefilescorrectly.B.Itmustopen100fileseverytimeyouuseyourPC.C.Theregisterdoesn’tagreewiththedatabasE.D.TheregistermustsavemanyimportantfilesinsidE.75.Whatdoesaregistrycleanermeans?A.AsoftwarwhichcanhelpyousavetimE.B.AsoftwarewhichcanremoveunnecessaryfilesC.AsoftwarewhichcanrepairthemachinE.D.asoftwarewhichmakesyourPCdown.
Thinking·Somescientistsclaimthatwehumansaretheonlylivingthingsthatareconscious有意识的—wealoneareawarethatwearethinking.·Nooneknowshowconsciousnessworks—itisoneofscience’slastgreatmysteries.·Allyourthoughtstakeplaceinthecerebrum大脑皮质whichisatthetopofyourbrainanddifferentkindsofthoughtarelinkedtodifferentareascalledassociationareas.·Eachhalfofthecerebrumhasfourroundedendscalledlobes脑叶—twoatthefrontfrontalandtemporallobesandtwoatthebackoccipitalandparietallobes.·Thefrontallobeislinkedtoyourpersonalityanditiswhereyouhaveyourbrightideas.·Thetemporallobeiswhereyouhearandunderstandwhatpeoplesaytoyou.·TheoccipitallobeiswhereyouworkoutwhatyoureyesseE.·Theparietallobeiswhereyourecordtouchheatandcoldandpain.·Thelefthalfofthebraincontrolstherightsideofthebody.TherighthalfcontrolstheleftsidE.·Onehalfofthebrainisalwaysdominantincharge.Usuallytheleftbrainisdominantwhichiswhy90%ofpeopleareright-handeD.Whichpartofyourcerebrumismostactivewhenyouaremakingatelephonecall?A.ThefrontallobE.B.ThetemporallobE.C.TheoccipitallobE.D.TheparietallobE.Whichofthefollowingstatementsistrue?A.One’spersonalityhassomethingtodowiththefrontallobE.B.BrightideascomefromtheparietallobE.C.Theoccipitalandtemperallobesareatthebackofthecerebrum.D.TheoccipitallobeisinchargeofsounD.Fromthepassageweknowthereasonwhyaround10%ofpeopleareleft-handedisthat_______.A.theirfrontallobeisusuallydominantB.theirtemporallobeisusuallydominantC.theirrightbrainisusuallydominantD.theirleftbrainisusuallydominant
PassageTwelveWeShouldAllGrowFatandBeHappyHere’safamiliarversionoftheboy-meets-girlsituation.A.youngmanhasatlastpluckedupcouragetoinviteadazzlingyoungladyouttodinner.ShehasacceptedhisinvitationandheisoverjoyeD.HeisdeterminedtotakehertothebestrestaurantintownevenifitmeansthathewillhavetoliveonmemoriesandhopesduringthemonthtocomE.Whentheygettotherestauranthediscoversthatthisetherealcreatureisonadiet.Shemustn’teatthisandshemustn’tthat.Ohbutofcourseshedoesn’twanttospoilhisenjoyment.Lethimbyallmeanseatasmuchfatteningfoodashewants:it’sthesurestwaytoanearlygravE.Theyspendatrulymemorableeveningtogetherandneverseeeachotheragain.Whatamiserablelotdietersare!Youcanalwaysrecognizethemfromthesourexpressionontheirfaces.TheyspendmostoftheirtimeturningtheirnosesupatfooD.Theyareforeverconsultingcaloriecharts;gazingatthemselvesinmirrors;andleapingontoweighing-machinesinthebathroom.Theyspendalifetimefightingalosingbattleagainstspreadinghipsprotrudingtummiesanddoublechins.Somewageall-outwaronFAT.Meredietingisnotenough.Theyexhaustthemselvesdoingexercisessweatinginsaunabathsbeingpummeledandmassagedbyweirdmachines.Thereallywealthydiet-mongerspayvastsumsfor‘healthcures’.Fortwoweekstheycanenteranatureclinicandbestarvedtodeathforahundredguineasaweek.Don’tthinkit’sonlythemiddle-agedwhogoinforthesefadseither.Manyofthesebrightyoungthingsyouseearesufferingfromchronicmalnutrition:theyarelivingonnothingbutairwaterandthegoodwillofGoD.Dietersundertaketostarvethemselvesoftheirownfreewill;sowhyaretheysomiserable?Wellforonethingthey’realwayshungry.Youcan’tbehungryandhappyatthesametimE.AllthehorribleconcoctionstheyeatinsteadoffoodleavethempermanentlydissatisfieD.Wonderfoodisacompletefoodtheadvertisementsays.‘Justdissolveateaspoonfulinwater’.A.completefooditmaybebutnotquiteascompleteasajuicysteak.Andofcoursethey’realwaysmiserablebecausetheyfeelsoguilty.Hungerjustprovestoomuchforthemandintheendtheylashoutanddevourfivehugeguilt-inducingcreamcakesatasitting.Andwhocanblamethem?Atleastthreetimesadaytheyareexposedtotemptation.Whatuttertortureitisalwayswatchingotherstuckingintopilesofmouth-wateringfoodwhileyoumunchawaterbiscuitandsipunsweetenedlemonjuice!What’sallthisself-inflictedtorturefor?SaintlypeopledeprivethemselvesoffoodtoattainastateofgracE.Unsaintlypeopledosotoattainastateofmisery.Itwillbeagreatdaywhenallthedietersintheworldabandontheirslimmingcourses;whentheyholdouttheirplatesanddemandsecondhelpings!1.ThebesttitleforthispassageisA.OnFat.B.WeShouldAllGrowFatandBeHappy.C.ManyDiseasesAreConnectedwithFat.D.DietDeprivesPeopleofNormalLifE.2.Whydotheyneverseeeachotheragain?A.Becauseitisamemorableevening.B.Becausesheletshimeatasmuchfatteningfoodashewants.C.Becauseshedoesnoteatthisanddrinkthat.D.BecauseeatingfatteningfoodisthesurestwaytoanearlygravE.3.WhichofthefollowingwaysisNOTmentionedfordiet?A.Doingexercises.B.Noteatingsugar.C.Noteatingfat.D.Takingsaunabaths.4.Whatistheauthor’sattitudetowarddiet?A.PersuasivE.B.Critical.C.Indifferent.D.AdversativE.
第三部分阅读理解共两节满分40分第一节共15题每小题2分满分30分阅读下列短文从每题所给的四个选项ABC和D中选出最佳选项并在答题卡上将该项涂黑AGlobaltravelInternationaltouristarrivalsinmillions2005statistics56.Accordingtothestatistics统计whichdestinationattractedthemosttouristsin2005?A.MiddleEastB.AmericaC.AsiaandPacificD.Europe57.Duringwhichinterval间隔wastherethegreatestincreaseofglobaltravel?A.Between2001-2002.B.Between2003-2004C.Between2002-2003D.Between2004-2005.58.Whichistrueaboutthediagram图表?A.Thediagramshowsthattherewillbeasteady稳固的increaseofglobaltraveloverthenextfewyears.B.Globaltravelsufferedaslightdrop下降everyyearfrom2000to2003.C.Thenumberoftouristsincreasedby21millionfrom2001to2002.D.TouristsfromEuropemadeuphalfofthetotalin2005.59.Thisdiagramismainlyabout____________________.A.differentdestinationsfortouristsB.statisticsofglobaltravelfrom2000to2005C.theprediction预测ofinternationaltouristsarrivals.D.thetendency趋势ofglobaltravel
CLiveEarthAnnounces2010GlobalEvent!ThisisthewebversionoftheOctober152009LiveEarthemailtomembers.Clickheretojoinandreceivebi-weeklyupdatesfromLiveEarth.LiveEarthispleasedtoannouncethelargestworldwidewaterinitiative倡议inhistorytohelpfighttheglobalwatercrisis.TheDowLiveEarthRunforWater—totakeplaceonApril182010—willconsistofaseriesof6kmrun/walkstheaveragedistancemanywomenandchildrenwalkeverydaytogetwatertakingplaceoverthecourseof24hoursincountriesaroundtheworldfeaturingconcertsandwatereducationactivitiesraisingawarenessandfundstohelpsolvethewatercrisis.JessicaBielAlexandraCousteauPeteWentzAngeliqueKidjoandJennyFletcherwilllendtheirnamesandtheirtimeinsupportofthisglobalevent.WatershortageisamajorissueaffectingcountriescommunitiesandfamiliesallovertheworlD.Oneineightpeopledoesn’thaveaccesstosafecleandrinkingwater.CommunitiesinAfricaLatinAmericaandAsiasuffer1.8milliondeathseveryyearfromdiarrheal腹泻diseasesandthedeathof5000childreneachdayduetoinadequatewaterinfrastructure基础设施.Intheseareaswomenandchildrenareforcedtowalk6km3.7mileseachdaytogetwaterthatislikelyunsuitablefordrinking.Howeverthewatercrisisisnotonlylimitedtodevelopingnations.AddingtotheseexistingissuestheeffectsofclimatechangeareincreasinglyimpactingbothsupplyandqualityofavailablefreshwaterthroughouttheworlD.In60%ofEuropeancitieswithpopulationsgreaterthan100000groundwaterisbeingusedfasterthanitcanbereplenished补充.By2025two-thirdsoftheworld’spopulationcouldbelivingunderwater-stressedconditions.YoucanhelpsolvethewatercrisisbyparticipatingintheApril18thevent.Run/walkregistrationisnowofficiallyopen!Signupnowathttp://liveearth.org/run.Thanksandbesuretovisitliveearth.orgforthelatestonTheDowLiveEarthRunforWaterconservationtipsandmore!FollowLiveEarthon:64.WhichofthefollowingactivitieswilltheDowLiveEarthorganizeonApril182010?A.ReceivingthelatestnewsfromLiveEarth.B.Puttingonmusicalperformances.C.Callingonpopstarstowalk6kmtogetwater.D.Lendingnamesandtimetosupporttheevent.65.Accordingtothepassagewhichofthestatementsistrue?A.Youcanturntohttp://liveearth.orgforwaterprotectiontips.B.JessicaBielcan’ttakepartintheeventevenifshesignsup.C.TheinformationonLiveEarthisupdatedeverymonth.D.Everyyear1.8millionpeopleintheworlddiefromthediseaserelatedtodirtywater.66.Wecanlearnfromthepassagethat__________.A.by2010two-thirdsoftheworld’spopulationwillbeshortofwaterB.wecansolvethewatercrisisbytakingpartintheApril18theventC.seven-eighthsofthepeopleinAsiacanhaveaccesstosafecleandrinkingwaterD.therearedifferentchannelsforpeopletogetaccesstoLiveEarth
BWouldyoueatareadymealfromthefridgeratherthancookbyyourself?HaveyoubeendoingInternetshoppingratherthangoingtothestores?Whatcan'tyoubebotheredtodo?A.studyintohowlazyBritishpeoplearehasfoundmorethanhalfoftheadultsaresoidle懒散的thatthey'dcatchtheliftratherthanclimbtwoflightsofstairs.Justover2000peoplewerequizzedbyindependentresearchersatNuffieldHealthBritain'slargesthealthcenter.Theresultswereextremelysurprising.Aboutoneinsixpeoplequestionedsaidiftheirremotecontrolwasbrokentheywouldcontinuewatchingthesamechannelratherthangetup.Morethanonethirdofthosequestionedsaidtheywouldnotruntocatchabus.Worryinglyofthe654respondentswithchildren64%saidtheywereoftentootiredtoplaywiththem.Thisledthereporttoconcludethatit'snowonderthatoneinsixchildrenintheUKareclassifiedasobeseveryfatbeforetheystartschool.DrSarahDaunceymedicaldirectorofNuffieldHealthsaidPeopleneedtogetfitternotjustfortheirownsakebutforthesakeoftheirfamiliesfriendsandevidentlytheirpetstoo.Ifwedon'tstarttotakecontrolofthisproblemawholegenerationwillbecometoounfittoperformeventhemostfundamentaltasks.AndScotland'slargestcityGlasgowwasshamedasthemostidlecityintheUKwith75%questionedadmittingtheydonotgetenoughexercisefollowedcloselybyBirminghamandSouthamptonbothwith67%.TheresultsbringseriouschallengesfortheNationalHealthServicewhereobesity-relatedillnessessuchasheartdiseaseandcancerhavebeenonasteadyincreaseforthepast40yearsandarecostingbillionsofpoundseveryyear.60.Howmanypeoplequestioneddon'tplaywiththeirchildren?A.1280.B.Morethan333.C.654.D.About420.61.Thestudyleadsustobelievethat.A.thepetsintheUKwillbeintroubleiftheirownerskeeptheirwayoflifeB.Glasgowpeoplefeelashamedbecausetheydon'tgetenoughexerciseC.BritishpeoplearethelaziestaroundtheworldD.fivesixthsoftheBritishchildrenarehealthy62.Howdoestheauthorconvincethereaders?A.Bypresentingtheresultsofastudy.B.Byprovidinganswerstoquestions.C.Byinterviewingsomeexperts.D.Bytellingastory.63.Whatisthepassagemainlyabout?A.AstudyofBritishpeople'slaziness.B.AstudyofBritishpeople'slifestyles.C.ThehealthserviceintheUK.D.TheobesityproblemintheUK.
RobotsaresmartWiththeircomputerbrainstheyhelppeopleworkindangerousplacesordodifficultjobsSomerobotsdoregularjobsBobbythemailcarrierbringsmailtoalargeofficebuildinginWashingtonD.C.Heisoneof250mailcarriersintheUnitedStatesMrLeachimwhoweighstwohundredpoundsandissixfeettallhassomeadvantagesasateacherOneisthathedoesnotforgetdetailsHeknowseachchild’snametheparents’namesandwhateachchildknowsandneedstoknowInadditionheknowseachchild’spetsandhobbiesMrLeachimdoesnotmakemistakesEachchildgoesandtellshimhisorhernamethendialsanidentification身份证明numberHiscomputerbrainputsthechild’svoiceandnumbertogetherHeidentifiesthechildwithnomistakesThenhestartsthelessonAnotheradvantageisthatMrLeachimisflexibleIfthechildrenneedmoretimetodotheirlessonstheycanmoveswitchesInthiswaytheycanrepeatMrLeachim’slessonoverandoveragainWhenthechildrendoagoodjobhetellsthemsomethinginterestingabouttheirhobbiesAttheendofthelessonthechildrenswitchMrLeachimoff58Thefirstparagraphofthepassagetellsus_______A.humanbeingsarenotassmartasrobotsB.robotswilltaketheplaceofmantoruletheearthC.wecanonlyuserobotstodosomeregularjobsD.robotscanhelppeopleinmanydifferentways59MrLeachim’s______makeshimagoodteacherA.knowledgeB.appearanceC.advantageD.energy60Thewordflexibleinthelastparagraphmeans_______A.notstrictB.nothardC.suitableD.changeable
第三部分阅读理解共20小题每小题2分满分40分阅读下列短文从所给的四个选项A.B.C.D中选出最佳选项Sciencesummercampsareoneofthebestwaystoimprovecreativityofstudentsandteachthemapracticalapproachtowardsscienceanditsapplications应用.Studentstakingpartinthecampscanlearntoappreciatescienceandtechnologyatanearlyagetobebetterpositionedforfurtherlearningandfinallybetterpreparedtofacechallenges.Apartfromtheoriesscientificexperimentsanddiscussionsareencouragedatthesecamps.ThesciencesummercampsareusuallyheldbetweenJuneandAugustandit’sgoodforparentstostartplanningtheirchildren’ssummercampsatleast6to7monthsinadvancE.Thisperiodoftimeprovidesanopportunityforthemtodoproperresearchandsavemoney.Withmorethan2000summercampsintheUSthereisawidevarietyforparentstochoosefrom.Ifthechilddoesn’tlikebiologythereisnopointsendinghimtoananatomy解剖学sciencecamp.Likewise同样地ifonethinksthathischildlimitshimselftobooksthroughouttheschoolyearheshouldtryandchoosecampswhichprovidestudentswithanopportunitytomoveoutintheopenandbephysicallyactivE.Tomakethetaskeasiertherearemanywebsiteswhichprovideonlineresourcematerialstohelpparentsselectasummercampthatfitstheneedsoftheirchildren.Generallyasciencesummercampcostsbetween$150and$500dependingonwherethecampislocatedhowlongitlastsandofcoursewhatsubjectitcovers.Someofthemalsoprovidescholarships奖学金forbrightstudentstoencouragethem.56.Asciencesummercampoffersstudents.A.chancestobewellpreparedforfuturestudyB.chancestoresearchandsavemoneyC.waystogetonlineresourcematerialsD.chancestoliveindependently57.Whatdoestheunderlinedwordtheminthesecondparagraphreferto?A.StudentsB.OrganizersCScientistsD.Parents58.Wecaninfer推断fromthesecondparagraphthat.A.it’simportantforchildrentorelaxatthesummercampsB.onlineresourcematerialscanhelptoorganizeasummercampC.propercampsshouldbechosenforchildrenaccordingtotheirneedsD.differentparentsshouldbechosenforchildrenaccordingtotheirneeds59.Whatdothecostsofasciencesummercampdependon?A.Organizers’effortsandsuggestions.B.Locationtimeandcontent.C.Students’likesanddislikes.D.Effectsandbenefits.
Spacetravelisdefinitelybadforastronauts’bonesreducingtheirbonedensity密度afteronlyamonthofweightlessnessaccordingtoFrenchresearchpublishedonFriday.LaurenceVicoandhisfellowworkersatStEtienneUniversitycalledformoreresearchintotheeffectsofmicrogravityaftertheirstudyof15astronautsfromtheRussianMIRstationshowedbonelosscontinuedthroughoutspaceflights.BonelosswasespeciallystrikinginfourastronautsthescientistsreportedintheLancetMedicalJournal.TheymeasuredthebonemineraldensityBMDofbonesintheforearm前臂andlowerlegoftheastronautswhohadspentonetosixmonthsinspacE.TheBMDlosswassignificantinthetibia胫骨ofthelowerlegaweight-bearingbonebutbarelychangedintheradius桡骨oftheforearm.Ourresultsindicatetheneedtoinvestigatenotonlydifferentbonesbutalsodifferentareasofthesamebonesincenotallsitesoftheskeleton骨架aresimilarlyaffectedbyspaceconditionstheyaddeD.Withoutgravitythebodyisn’tbearinganyweightsothereisnoneedforcalcium钙whichmakesbonesstronganditbecomesemptyintothebloodstream.Theresearchteamsuggestedinfuturescientistsshouldtrytodetermineifthelossofbonedensitywasonlyonweight-bearingbonesonlongerflightsalsothepossiblerecoveryafterreturningtoEarth.FrenchscientistsdidtheirresearchonRussianastronautsbecause_______.A.theyonlycaredfortheRussianastronautsB.theywerenotinterestedintheirownastronautsC.theRussiangovernmentinvitedthemtodotheirresearchD.theRussianastronautsworkedinspaceforalongtimeScientistshavefoundthat_______.A.theBMDlossmaycauseseriousillnesstoastronautsB.theBMDlossmaycausesomechangeinastronauts’bodiesC.astronautsshouldn’tcareabouttheBMDlossD.astronautsshouldtakesomecalciumbeforespacetravelWhatcausetheBMDlosstoastronautsaccordingtothispassage?A.ThefoodtheyeatinspacE.B.ThedrinkstheytakeinspacE.C.ThetemperatureinspacE.D.ThegravityinspacE.Inthethirdparagraphthewordstrikingmeans______.A.unusualB.simpleC.weakD.slow
BParticlesfromcarexhaustsgeneratemorepersistentcloudsbutlessrainnewresearchsuggests.Furthermoreputtingmoreoftheseparticlesintotheatmospherereducesthelow-levelwindswhichcouldreducetheamountofwindpoweravailableinverypollutedregions.Thedrybutpopulatedregionsmaythereforesufferatripleblowasaresultofvehiclepollutionlesswaterlesshydropowerandlesswindenergy.Scientistsstudiedtheeffectsofaerosol浮质pollutionfromcarsandindustry.TheycorrelatedsatellitedataonwindspeedsandtheamountofaerosolparticlesintheatmosphereabovetheSouthCoastBasininCaliforniaandaboveChinA.Resultsshowedthathigherconcentrationsofaerosolswerecloselyassociatedwithslowergroundwinds.Scientiststhenusedcomputermodelstosupporttheideathattherewasacauseandeffectrelationshipbehindthiscorrelation.ParticlesfloatingintheatmosphereblockenergyfromtheSunpreventingitfromwarmingthesurfaceoftheEarth.Coolersurfacetemperaturesduringthedaymeansthelow—levelandslowmovingairdoesnotriseupandmixwiththefasterwindsathigheraltitudes.Slowerwindsalsoinducelessevaporationfromoceansriversandlakes.Andfinallyoncecloudshaveformedtheystorelessmoistureintheformofrain.Thisisbecauseraindropsformaroundsmallparticles—dustforinstanceorpollution.Withmoreparticlesintheatmosphereittakeslongerforenoughwatertocondense凝结ontoaparticletoformaraindrop.Andifthecloudoffinedroplets小滴movestoadrierareabeforeitswould-beraincanrailthemoistureevaporatesoncemoreandtheclouddisappears.Scientistsnotetheirnewworkdoesnotcontradictpreviousfindingsthatsuggestglobalwarmingmightleadtomoretropicalstormsbecausethereisfarlessparticulate微粒的pollutionovertheoceans.60.Thefirstparagraphmainlytalksabout.A.theresultsofvehiclepollutionB.anintroductiontoparticlesfromcarexhaustsC.lesswindenergyinpollutedregionsD.lesswatercausedbyvehiclepollution61.Fromthispassagewecanlearnthat.A.scientistssupportedtheirideabyusingmaterialmodelsB.thenewstudyiscontrarytothepreviousfindingsC.iftherearemoreparticlesintheatmospheretherewillbemoreraindropsD.thereisacauseandeffectrelationshipbetweenwindspeedsandparticlepollution62.TheunderlinedwordinduceinParagraph3mostprobablymean_.A.reduceB.persuadeC.causeD.produce63.What’sthebesttitleforthepassage?A.PollutionandGlobalWarmingB.CarWindandRainC.IndustryPollutionD.HowRainForms
Imagineyou’reatapartyfullofstrangers.You’renervous.Whoarethesepeople?Howdoyoustartaconversation?Fortunatelyyou’vegotathingthatsendsoutenergyattinychipsineveryone’snametag标签.Thechipssendbacknamejobhobbiesandthetimeavailableformeeting-whatever.MakingnewfriendsbecomessimpleThishasn’tquitehappenedinreallifE.ButtheworldisalreadyexperiencingarevolutionusingRFIDtechnology.AnRFIDtagwithatinychipcanbefixedinaproductunderyourpet’sskinevenunderyourownskin.PassiveRFIDtagshavenoenergysource-batteriesbecausetheydonotneedit.Theenergycomesfromthereaderascanningdevicethatsendsoutenergyforexampleradiowavesthatstartsupthetagimmediately.SuchatagcarriesinformationspecifictothatobjectandthedatacanbeupdateD.AlreadyRFIDtechnologyisusedforrecognizingeachcarortruckontheroadanditmightappearinyourpassport.Doctorscanputatinychipundertheskinthatwillhelplocateandobtainapatient’smedicalrecords.AtanightclubinParisorinNewYorkthesamechipgetsyouintotheVIPveryimportantpersonsectionandpaysforthebillwiththewaveofanarm.Takeastepback:10or12yearsagoyouwouldhaveheardaboutthecomingageofcomputing.Oneexamplealwaysseemedtosurface:Yourrefrigeratorwouldknowwhenyouneededtobuymoremilk.TheconceptwasthatcomputerchipscouldbeputeverywhereandsendinformationinasmartnetworkthatwouldmakeordinarylifesimplerRFIDtagsareasmallpartofthisphenomenon.TheworldisgoingtobealooselycoupledsetofindividualsmalldevicesconnectedwirelesslypredictsDr.J.Reich.Humanrightsupportersarenervousaboutthepossibilitiesofsuchtechnology.ItgoestoofartrackingschoolkidsthroughRFIDtagstheysay.Weimagineaworldinwhichabeercompanycouldfindoutnotonlywhenyouboughtabeerbutalsowhenyoudrankit.Andhowmanybeers.Accompaniedbyhowmanybiscuits.w*w*WhenMarconiinventedradiohethoughtitwouldbeusedforship-to-shorecommunication.NotforpopmusiC.WhoknowshowRFIDandrelatedtechnologieswillbeusedinthefuturE.Here’sawildguess:Notforbuyingmilk.1.Thearticleisintendedto______.A.warnpeopleofthepossiblerisksinadoptingRFIDtechnologyB.explainthebenefitsbroughtaboutbyRFIDtechnologyC.convincepeopleoftheusesofRFIDtechnologyD.predicttheapplicationsofRFIDtechnology2.WeknowfromthepassagethatwiththehelpofRFIDtagspeople.A.willhavenotroublegettingdataaboutothersB.willhavemoreenergyforconversationC.willhavemoretimetomakefriendsD.won’tfeelshyatpartiesanylonger3.PassiveRFIDtagschieflyconsistof.A.scanningdevicesB.radiowavesC.batteriesD.chips4.WhyaresomepeopleworriedaboutRFIDtechnology?A.Becausechildrenwillbetrackedbystrangers.B.BecausemarketcompetitionwillbecomemorefiercE.C.BecausetheirprivateliveswillbegreatlyaffecteD.D.Becausecustomerswillbeforcedtobuymoreproducts.5.ThelastparagraphimpliesthatRFIDtechnology.A.willnotbeusedforsuchmattersasbuyingmilkB.willbewidelyusedincludingforbuyingmilkC.willbelimitedtocommunicationusesD.willprobablybeusedforpopmusic
DA.teamofscientistsprovedthatsealshadaverygoodsenseofhearing.Thesementrainedblindsealstoexpectfoodwhentheyheardsounds.Thesealsalwaysbegansnapping猛咬whenastrongsignalwassoundeD.ItwasprovedthatevenasoftsignalaconsiderabledistanceawaycouldmaketheseseaanimalsresponD.Thatshouldmakethefishermanwhomakesmuchnoisewhileworkingortalksloudlystartthinking.Thesameteamofscientistsalsotrainedsealstorecognizedifferentsounds.Onebell-tonemeantfoodtwobell-tonesmeantnofooD.Inthebeginningthesealsmademistakeswhenthetwobell-tonesweresoundeD.TheyweregivenalighttapaftereachmistakE.Thesealsweregoodlearners.Theyeasilylearnedtotellthedifferencebetweenthesounds.67.Whywasitnecessarytouseblindseals?Becausethey______.A.wereunabletousesightforcluesB.hadbetterhearingC.werewaitingtobefedD.weretheonlyanimalstobefound68.Tothosesealsstrongsignalmeant_____.A.snappingB.nothingC.foodD.alighttap69.Thearticledoesn’tsaydirectlybutsuggeststhatfishermenusuallythink______.A.sealshavenogoodsenseofhearingB.sealshavegoodsenseofhearingC.sealscanonlyrecognizebellsoundsD.sealscannothearsoftorlongdistantsounds70.Whichtitlewillbethebesttosuitthearticle?A.CleverSealsB.SmartLearnersC.AnUnderwaterSchoolD.AnUnknownSchool
BA.mosquitoisaninsectthatisfoundallovertheworlD.Therearethousandsofdifferentkindsofmosquitoesinmanydifferentsizesandcolors.Thefemalemosquitoneedsbloodfromvertebrates脊椎动物tolayeggsandproducemoremosquitoes.Shehasaspecialpartofhermouththatsheusestosuckbloodandhersalivaspitthinsthebloodsoshecandrinkit.Infact.It’sthemosquito’ssalivathatmakesthebitesitch痒!A.personwhogetsbittenbyamosquitowillnoticeawhealwhichisabumparoundthebitE.ThewhealwillberoundwithpinkorredaroundtheedgeandwhiteinthemiddlE.Thewhealwillitchalot.Soonthewhealwilldisappearbuttheitchwillstay.Ifyou’vebeenbittenbyamosquitowashthebitewithsoapandwater.Putonsomecalaminelotiontohelpstoptheitchingoranadultcanfindananti-itchcreamatthedrugstoreforyou.Placinganicepackonthebitemayalsohelp.Tellanadultyou’vebeenbittenbyamosquitoespeciallyifyouliveintheeasternUnitedStates.Butifyoudevelopanallergicreactionandfeeldizzyorsicktelladoctorimmediately.HecantreatallergicreactionswithsolemedicinE.Thebestwaytoavoidmosquitobitesistowearaninsectrepellent.RepellentsthatincludeoneoftheseingredientsarebestBEETandlemoneucalyptus.Askaparenttohelpyouapplythem.Sincemosquitoeslaytheireggsinwaterit’salsoagoodideatoemptyoutbucketsflowerpotstoysandotherthingsinyouryardthatmayhavecollectedwaterduringarainstorm.Andwhenit’spossibleyou’dbetterwearlong-sleevedshirtsandlongpantstokeepmosquitoesawayfromyourskin.60.Whatmakesyouitchafterthemosquitoes’bites?A.AbumparoundthebitE.B.Themosquito’ssalivA.C.Somecalaminelotion.D.Anantic-itchcream.61.TheunderlinedwordwhealParagraph2isclosestinmeaningto________.A.asmallmouththatcanpreventaninsectB.asmallmarkafteraninsectbitethatusuallyitchesC.anillnessafteraninsectbitethatalwaysspreadsnearbyD.anillnessfrommosquitoes’bitesandotherpollutiondiseases62.WhichofthefollowingisTRUEaccordingtothispassage?A.Therearethousandsofmosquitoesinthesamesizesandcolors.B.Thewhealwillneverdisappearforeverbuttheitchwilldisappearsoon.C.AskadoctorforsomemedicineifyoudevelopanallergicreactionforthebitE.D.Askaparentforaninsectrepellentifyouseemosquitoeslayingtheireggsinwater.
Thebrainofaninsectisn’tverybig.Butinsectsaresomehowstillabletomakelotsofimportantdecisions.Beesantsandroaches蟑螂buildhiveswiththousandsofworkersdoingspecializedwork.Thejobsaredonewithoutaheadorevenaplan.Howdoinsectsmanagethis?TosolvethemysteryscientistsinBelgiumspentmonthsbuildingroboticroachesandthenputtingthemamongrealroaches.Thefinalgoaloftheresearchistofindouthowthesimplebehaviorofindividualsgivesrisetoacollective集体的decision.Theroachisagoodstartingpointfortryingtoanswerthebigquestionbecauseitssocialsystemissimpleenoughforscientiststostudy.Thefirststepwastobuildrobotsthatrealroacheswouldacceptastheirown.Althoughtheroboticroachesdon’tlookmuchliketherealthingtheyhavesimilaritieswiththeminthreekeyways:theynaturallyheadtowarddarkareastheyareinfluencedbythebehaviorofotherroachesandevenmoreimportantlytheysmelllikeroaches.Thenextstepwasgettingtheroboticandrealroachestoworktogetheroncommontasks.Inexperimentstherobotswouldcollectivelyheadtowardsadarkplacecopyingthebehaviorofnaturalroaches.Thatgottheresearcherswondering:ifyouprogramtheroboticroachestogotowardthelightedplacewilltherealroachesfollowgoingagainsttheirnaturalinstincts.本能?Theywill–itturnedout.Manyoftherealroachesfollowedtherobotstoalightershelter.Butinfluenceturnedouttobeatwo-waystreet.Onoccasiontherealroacheswereabletooverridetheprogrammingoftherobotroachesandgetthemtoturnintodarkhidingplaces.Beingsocialcreaturesboththeroboticandnaturalroacheswerepayingattentiontoandfollowingtheexamplesetbyothers.Intheoryitwouldbepossibletocreatearobotthatcouldinfluencecollectivedecision-makinginhumans.Todothisresearcherswouldhavetoinventarobotthatpeoplewouldaccept.Fortunatelythetechnologyisn’tthereyet.69.Whydoscientistschoosetheroachestostudy?A.TheirsocialsystemissimpleB.Theyaresocialcreatures.C.Theyareabletobuildtheirhivesquitewell.D.Itiseasytocreateroboticones.70.TheroboticroachesareacceptedbyrealonesbecauseofallthefollowingEXCEPTthat______.A.theysmelllikerealonesB.theylookexactlylikerealonesC.whattheydoaresomewhatinfluencedbyotherroachesD.theynaturallyheadtowarddarkareas71.What’stheauthor’sattitudetocreatingarobotthatwouldinfluencecollectivedecision-makinginhumans?A.UninterestedB.PositiveC.NegativeD.Doubtful72.Whichofthefollowingmightbethebesttitleofthepassage?A.Scientists’ResearchB.RoboticRoachesC.AmazingInsectsD.Insects’SocialSystem
WhenIwassmallandmygrandmotherdiedIcouldn’tunderstandwhyIhadnotears.Butthatnightwhenmydadtriedtocheermeupmylaughturnedintocrying.Soitcameasnosurprisetolearnthatresearchersbelievecryingandlaughingcomefromthesamepartofthebrain.Justaslaughinghasmanyhealthadvantagesscientistsarediscoveringthatsotoodoescrying.Whateverittakesforustoreducepressureisimportanttoouremotional情感的healthandcryingseemstostudyfoundthat85percentofwomenand73percentofmenreportfeelingbetteraftercrying.BesidestearsattracthelpfromotherpeoplE.Researchersagreethatwhenwecrypeoplearoundusbecomekinderandfriendlyandtheyaremorereadytoprovidesupportandcomfort.Tearsalsoenableustounderstandouremotionsbetter;sometimeswedon'tevenknowwe'reverysaduntilwecry.WelearnaboutouremotionsthroughCryingandthenwecandealwiththem.Justascryingcanbehealthynotcrying—holdingbacktearsofangerpainorsuffering—canbebadforphysical身体的healthStudieshaveshownthattoomuchcontrolofemotionscanleadtohighbloodpressureheartproblemsandsomeotherillnesses.Ifyouhaveahealthproblemdoctorswillcertainlynotaskyoutocry.Butwhenyoufeellikecryingdon'tfightit.It'sanatural—andhealthy—emotionalresponse反应.60.Whydidn'ttheauthorcrywhenhergrandmotherdied?A.BecauseherfatherdidnotwanthertofeeltoosaD.B.Becauseshedidnotlovehergrandmother.C.BecauseshewastooshytocryatthattimE.D.Tieauthordoesn’tgivetheexplanation.61.Itcanbeinferredfromthetextthat______.A.therearetwowaystokeephealthyB.cryingdoesmoregoodtohealththanlaughingC.cryingandlaughingplaythesamerolesD.emotionalhealthhasacloserelationshiptophysicalhealth62.Accordingtotheauthorwhichofthefollowingstatementsistrue?A.Cryingisthebestwaytogethelpfromothers.B.Fightingbacktearsmaycausesomehealthproblems.C.Wewillneverknowourdeepfeelingsunlesswecry.D.WemustcryifwewanttoreducepressurE.63.Whatmightbethemostsuitabletitleforthetext?A.PowerofTearsB.HowtoKeepHealthyC.WhyWeCryD.A.NewScientificDiscovery
BTwonewstudiessuggestthatmodernrunningshoescouldincreasetheriskofinjuriestorunners.Onestudyinvolvedsixty-eighthealthyyoungwomenandmenwhoranatleasttwenty-fourkilometersaweek.TherunnerswereobservedonatreadmillmachinE.Sometimestheyworerunningshoes.Othertimestheyranbarefoot.ResearchersfromtheJKMTechnologiesCompanyinVirginiatheUniversityofVirginiaandtheUniversityofColoradodidthestudy.Theyfoundthatrunningshoescreatemorestressthatcoulddamagekneeshipsandanklejointsthanrunningbarefoot.Theyobservedthattheeffectwasevengreaterthantheeffectreportedearlierforwalkinginhighheels.ThestudyappearedintheofficialscientificjournaloftheAmericanAcademyofPhysicalMedicinE.TheotherstudyappearedinthejournalNaturE.ItcomparedrunnersintheUnitedStatesandKenyA.TheresearcherswerefromHarvardUniversityinMassachusettsMoiUniversityinKenyaandtheUniversityofGlasgowinScotlanD.Theydividedtherunnersintothreegroups.Onegrouphadalwaysrunshoeless.Anothergrouphadalwaysrunwithshoes.Andthethirdgrouphadchangedtoshoelessrunning.Runnerswhowearshoesusuallycomedownheelfirst.Thatputsgreatforceonthebackofthefoot.Butthestudyfoundthatbarefootrunnersgenerallylandonthefrontormiddleoftheirfoot.Thatwaytheyeaseintotheirlandingandavoidstrikingtheirheel.Harvard’sDanielLiebermanledthestudy.Hesaysthewaymostrunningshoesaredesignedmayexplainwhythosewhowearthemlandontheirheels.Theheeloftheshoeisbiggerandheavierthanotherpartsoftheshoesoitwouldseemmorelikelytocomedownfirst.Alsotheheelgenerallyhasthickmaterialunderittosoftenlandings.60.Howmanyorganizationsareinvolvedinthetwostudies?A.ThreE.B.Four.C.FivE.D.Six.61.Whatcanwelearnfromthetext?A.Mostrunningshoesaredesignedimproperly.B.Thedesignofhighheelsisbetterthanthatofrunningshoes.C.NoonewillrunwithrunningshoesinthefuturE.D.BothofthestudiesaredoneinAmericA.62.Whydorunningshoesincreasetheriskofinjuriestorunners?A.Theycouldcreatestress.B.They’retoobigandheavy.C.TheycanaffectthewaytherunnerslanD.D.Theirheelscansoftenlandings.63.Howdidtheresearchersdothetwostudies?A.Bypractising.B.Bycomparing.C.Byquestioning.D.Byreasoning.
BAnewstudyhasfoundnoevidencethatsunscreencommonlyusedtoreducetheriskofskincanceractuallyincreasestherisk.ResearchfromtheUniversityofIowabasedtheirfindingsonareviewof18earlierstudiesthatlookedattheassociationbetweensunscreenuseandmelanoma黑素瘤.TheysaidthattheyfoundflawsinstudiesthathadreportedassociationsbetweensunscreenuseandhigherriskofmelanomA.Mosthealthexpertsbelievethatbyprotectingtheskinfromtheharmfuleffectsofthesunsunscreenhelpspreventskincancerwhichisincreasinginincidence发生率fasterthananyothercancerintheUnitedStates.Butquestionshavebeenraisedaboutsunscreenandwhetheritmayhavetheoppositeeffectbyallowingpeopletoremainexposedtothesunlongerwithoutburning.Theresearcherssaidthatamongtheproblemswithsomeearlierstudiesisthattheyoftenfailedtotakeintoaccountthatthosepeoplemostatriskforskincancer---aremorelikelytousesunscreen.Asaresultitmayappearthatsunscreenusersgetcancermoreoften.Thestudieswhichgenerallyreliedonvolunteerstorecalltheirsunscreenusewerealsounabletoprovehowwelltheproductshadbeenappliedsaidthenewstudy.60.Theunderlinedwordflawsinthe2ndparagraphmostprobablymeans_________.A.evidencesB.factsC.faultsD.failures61.Peoplewithfairskinandfreckles________.A.seldomusesunscreenB.aremoreindangerofskincancerC.canbefreefromtheharmofthesunD.oftenexposethemselvestothesun62.Wecanlearnfromthepassagethat_________.A.sunscreenusersgetskincancermoreoftenB.thevolunteershaveprovedtheeffectofthesunscreenC.thenewstudyhasbasedontheexperiencesofvolunteersD.thenumberofskincancerpatientsisincreasinginAmerica63.Whichofthefollowingisthebesttitleofthepassage?A.SunscreentoPreventSkinCancerB.SunscreentoIncreaseSkinCancerC.SkinCancerCausedbySunscreenD.SkinCancerCausedbyFreckles
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