2017年6月大学英语六级考试真题及答案解析(第二套加第三套)

2017年6月大学英语六级考试真题及答案解析（第二套完整版）PartIWriting(30minutes)Directions:Supposeyouareaskedtogiveadviceonwhethertomajorinscienceorhumanitiesatcollege,writeanessaytostateyouropinion.Youarerequiredtowriteatleast150wordsbutnomorethan200words.【参考范文】WhethertoMajorinScienceorHumanitiesatCollege?Nowadays,asthewholesocietyplaceincreasinglyconsiderablevalueoneducation,thequestionofwhethertomajorinscienceorhumanitiesatcollegeisnotonlyaconcernforstudents,butalsoafocalpointforparents.Somebelievethattodigintoscienceisabetterchoicebecauseitpromisesusabrighterfuture;othersmayholdtheoppositeviewthathumanityknowledgeisthefoundationofhumanityquality.Asforme,bothargumentsarejustified.However,Ibelievethattheimportantthingisnotaboutwhichsubjectisbetter,whatmattersmostispeoplewhowillhavetomakethedecision.Inotherwords,weshouldnotlayone-sidedemphasisontheadvantagesofeithersubject;onthecontrary,thestudentsthemselves,theirinterestsandpreferences,prosandconsaresupposedtobetakenintoconsideration.Forexample,ifastudentismoreadeptathumanityandthat’swherehisrealinterestslie,thenheshoulddedicatetothestudyonhumanity.Whethertomajorinscienceorhumanitiesisacriticalchoiceforeverystudentbecauseitsresulthasaprofoundinfluenceonpersonalcareerdevelopmentandlifestyle.Thusweshouldfigureoutwhatwereallycareaboutsoasnottoputthecartbeforethehorse.PartIIListeningComprehension(30minutes)SectionADirections:Inthissection,youwillheartwolongconversations.Attheendofeachconversation,youmilhearfourquestions.Boththeconversationandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions1to4arebasedontheconversationyouhavejustheard.1.A)Doingenjoyablework.B)Havingfriendlycolleagues.44.Greenhousegasemissions,ifnotproperlydealtwith,willposeendlessrisksformankind.45.Itisurgentforgovernmentstoincreasethecostofusingfossilfuelstoanappropriateleveltolessenthecatastrophiceffectsofclimatechange.36.【解析】[D]。根据题干中的关键词Anumberoffactors和drivingdowntheglobaloilprices可定位至[D]段第三、四句。37.【解析】[L]。根据题干中的关键词Pricingcarbon和themosteconomicalway可定位至[L]段第二句。38.【解析】[J]。根据题干中的关键词Africanchildren可定位至[J]段第二句。39.【解析】[E]。根据题干中的关键词over-supplyanddecreasingdemand可定位至[E]段最后一句。40.【解析】[H]。根据题干中的关键词higherfossilfuelprices以及innovationandapplicationofcleanertechnology可定位至[H]段第二句。41.【解析】[A]。根据题干中的关键词remainlowforalongtime和higheremissionsofgreenhousegases可定位至[A]段第一、三句。42.【解析】[G]。根据题干中的关键词primaryenergyconsumption可定位至[G]段第二句。43.【解析】[F]。根据题干中的关键词majorfossilexportingcountries和developrenewableenergies可定位至[F]段第二句。44.【解析】[O]。根据题干中的关鍵词notproperlydealtwith和poseendlessrisks可定位至[O]段最后一句。45.【解析】[B]。细节题。根据题干中的关键词urgentforgovernments,increasethecost和lessenthecatastrophiceffects可定位至[B]段第二句。SectionCDirections:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.PassageOneQuestions46to50arebasedonthefollowingpassage.Opendatasharersarestillintheminorityinmanyfields.Althoughmanyresearchersbroadlyagreethatpublicaccesstorawdatawouldacceleratescience,mostarereluctanttoposttheresultsoftheirownlaborsonline.Somecommunitieshaveagreedtoshareonline—geneticists,forexample,postDNAsequencesattheGenBankrepository(库),andastronomersareaccustomedtoaccessingimagesofgalaxiesandstarsfrom,say,theSloanDigitalSkySurvey,atelescopethathasobservedsome500millionobjects---buttheseremaintheexception,nottherule.Historically,scientistshaveobjectedtosharingformanyreasons:itisalotofwork;untilrecently,gooddatabasesdidnotexist;grantfunderswerenotpushingforsharing;ithasbeendifficulttoagreeonstandardsforformattingdata;andthereisnoagreedwaytoassigncreditfordata.Butthebarriersaredisappearing,inpartbecausejournalsandfundingagenciesworldwideareencouragingscientiststomaketheirdatapublic.Lastyear,theRoyalSocietyinLondonsaidinitsreportthatscientistsneedto“shiftawayfromaresearchculturewheredataisviewedasaprivatepreserve”.Fundingagenciesnotethatdatapaidforwithpublicmoneyshouldbepublicinformation,andthescientificcommunityisrecognizingthatdatacannowbeshareddigitallyinwaysthatwerenotpossiblebefore.Tomatchthegrowingdemand,servicesarespringinguptomakeiteasiertopublishresearchproductsonlineandenableotherresearcherstodiscoverandcitethem.Althoughcallstosharedataoftenconcentrateonthemoraladvantagesofsharing,thepracticeisnotpurelyaltruistic(利他的).Researcherswhosharegetplentyofpersonalbenefits,includingmoreconnectionswithcolleagues,improvedvisibilityandincreasedcitations.Themostsuccessfulsharers一thosewhosedataaredownloadedandcitedthemostoften---getnoticed,andtheirworkgetsused.Forexample,oneofthemostpopulardatasetsonmultidisciplinaryrepositoryDryadisaboutwooddensityaroundtheworld;ithasbeendownloaded5,700times.Co-authorAmyZannethinksthatusersprobablyrangefromclimate-changeresearcherswantingtoestimatehowmuchcarbonisstoredinbiomass,toforesterslookingforinformationondi