大学英语四级真题及答案第三套.docx

大学英语四级真题及答案第三套.docx

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大学英语四级真题及答案第三套

2017年12月大学英语四级真题及答案（第三套）

PartIWriting（25minutes）

　　Directions:

Forthispart,youareallowed30minutestowriteashortessayonhowtobesthandletherelationshopbetweenteachersandstudents.

　　Youshouldwriteatleast120wordsbutnomorethan180words.

PartIIListeningComprehension（25minutes）

　　SectionA

　　Directions:

Inthissection,youwillhearthreenewsreports.Attheendofeachnewsreport,youwillheartwoorthreequestions.Boththenewsreportandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA）,B）,C）andD）.ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.

　　Questions1and2arebasedonthenewsreportyouhavejustheard.

　　1.A）HerfriendErika.C）Hergrandfather.

　　B）Herlittlebrother.D）Hergrandmother.

　　2.A）Bytakingpicturesforpassers-by.C）Bysellinglemonadeandpictures.

　　B）Byworkingparttimeatahospital.D）Byaskingforhelponsocialmedia.

　　Questions3and4arebasedonthenewsreportyouhavejustheard.

　　3.A）Findingcheaperwaysofhighwayconstruction.

　　B）Generatingelectricpowerforpassingvehicles.

　　C）Providingcleanenergytofivemillionpeople.

　　D）Testingtheefficiencyofthenewsolarpanel.

　　4.A）Theycanstandthewearandtearofnaturalelements.

　　B）Theycanbelaidrightontopofexistinghighways.

　　C）Theyareonlyabouthalfaninchthick.

　　D）Theyaremadefromcheapmaterials.

　　Questions5to7arebasedonthenewsreportyouhavejustheard.

　　5.A）Endlessfightingintheregion.C）Inadequatefundingforresearch.

　　B）Thehazardsfromthedesert.D）Thelackofcluesaboutthespecies.

　　6.A）Toobservethewildlifeinthetwonationalparks.

　　B）Toidentifythereasonsforthelions’disappearance.

　　C）TostudythehabitatoflionsinSudanandEthiopia.

　　D）Tofindevidenceoftheexistenceofthe“lostlions”.

　　7.A）Lionswalking.C）Somecampingfacilities.

　　B）Lions’tracks.D）Trapssetbylocalhunters

SectionB

　　Directions：

Inthissection,youwillheartwolongconversations.Attheendofeachconversation,youwillhearfourquestions.Boththeconversationandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA）,B）,C）,andD）.ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.

　　Questions8to11arebasedontheconversationyouhavejustheard.

　　8.A）Her‘luckybirthday’.C）Herweddinganniversary.

　　B）Acallfromherdad.D）Aspecialgiftfromtheman.

　　9.A）Gaveherabigmodelplane.C）Tookheronatripoverseas.

　　B）Boughtheragoodnecklace.D）Threwherasurpriseparty.

　　10.A）Thegiftherhusbandhasbought.

　　B）Thetripherhusbandhasplanned.

　　C）Whathasbeentroublingherhusband.

　　D）Whatherhusbandandthemanareupto.

　　11.A）Hewillbegladtobeaguideforthecouple’sholidaytrip.

　　B）Hewilltellthewomenthesecretifherhusbandagrees.

　　C）Heiseagertolearnhowthecouple’sholidayturnsout.

　　D）Hewantstofindoutaboutthecouple’sholidayplan.

　　Questions12to15arebasedontheconversationyouhavejustheard.

　　12.A）Theyaresensitivetothedynamicsofanegotiation.

　　B）Theyseetheimportanceofmakingcompromises.

　　C）Theyknowwhentoadoptatoughattitude.

　　D）Theytaketherival’sattitudeintoaccount.

　　13.A）Theyknowhowtoadapt.C）Theyknowwhentomakecompromises.

　　B）Theyknowwhentostop.D）Theyknowhowtocontroltheiremotion.

　　14.A）Theyarepatient.C）Theylearnquickly.

　　B）Theyaregoodatexpression.D）Theyupholdtheirprinciples.

　　15.A）Makeclearone'sintentions.C）Formulateone'sstrategy.

　　B）Clarifyitemsofnegotiation.D）Gettoknowtheotherside.

SectionC

　　Directions:

Inthissection,youwillhearthreepassages.Attheendofeachpassage,youwill

　　hearthreeorfourquestions.Boththepassageandthequestionswillbespokenonly

　　once.Afteryouhearaquestion,youmustchoosethebestanswerfromthefour

　　choicesmarkedA）,B）,C）,D）.ThenmarkthecorrespondingletteronAnswer

　　Sheet1withasinglelinethroughthecentre.

　　Questions16to18arebasedonthepassageyouhavejustheard.

　　16.A）WhenAmerica'searliestspaceprogramstarted.

　　B）WhentheInternationalSpaceStationwasbuilt.

　　C）Howmanyspaceshuttlemissionstherewillbe.

　　D）HowspaceresearchbenefitspeopleonEarth.

　　17.A）Theyaccuratelycalculatedthespeedoftheorbitingshuttles.

　　B）Theydevelopedobjectsforastronautstouseinouterspace.

　　C）Theytriedtomeetastronauts'specificrequirements.

　　D）Theytriedtomakebestuseofthelatesttechnology.

　　18.A）Theyareextremelyaccurate.C）Theywerefirstmadeinspace.

　　B）Theyareexpensivetomake.D）Theywereinventedinthe1970s.

　　Questions19to21arebasedonthepassageyouhavejustheard.

　　19.A）ItwaswhenherancestorscametoAmerica.

　　B）Peoplehadplentyoflandtocultivatethen.

　　C）Itmarkedthebeginningofsomethingnew.

　　D）Everythingwasnaturalandgenuinethen.

　　20.A）Theybelievedinworkingforgoals.C）Theyhadallkindsofentertainment.

　　B）Theyenjoyedlivingalivingalifeofease.D）Theywereknowntobecreative.

　　21.A）Chattingwithherancestors.C）Polishingallthesilverwork.

　　B）Furnishinghercountryhouse.D）Doingneedleworkbythefire.

　　Questions22to25arebasedonthepassageyouhavejustheard.

　　22.A）Useamaptoidentifyyourlocation.C）Sitdownandtrytocalmyourself.

　　B）Callyourfamilyorfriendsforhelp.D）Trytofollowyourfootprintsback.

　　23.A）Youmayfindawayoutwithoutyourknowingit.

　　B）Youmayexposeyourselftounexpecteddangers.

　　C）Youmaygetdrownedinasuddenflood.

　　D）Youmayendupenteringawonderland.

　　24.A）Lookforfood.C）Startafire.

　　B）Waitpatiently.D）Walkuphill.

　　25.A）Informsomebodyofyourplan.C）Checkthelocalweather.

　　B）Prepareenoughfoodanddrink.D）Findamapandacompass.

PartⅢReadingComprehension（40minutes）

SectionC

　　Directions:

Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA）,B）,C）andD）.YoushoulddecideonthebestchoiceandmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.

　　PassageOne

　　Questions46and50arebasedonthefollowingpassage.

　　Aginghappenstoallofus,andisgenerallythoughtofasanaturalpartoflife.Itwouldseemsillytocallsuchathinga“disease.”

　　Ontheotherhand,scientistsareincreasinglylearningthatagingandbiologicalagearetwodifferentthings,andthattheformerisakeyriskfactorforconditionssuchasheartdisease,cancerandmanymore.Inthatlight,agingitselfmightbeseenassomethingtreatable,thewayyouwouldtreathighbloodpressureoravitamindeficiency.

　　BiophysicistAlexZhavoronkovbelievesthatagingshouldbeconsideredadisease.Hesaidthatdescribingagingasadiseasecreatesincentivestodeveloptreatments.

　　“Ituntiesthehandsofthepharmaceutical（制药的）industrysothattheycanbegintreatingthediseaseandnotjustthesideeffects,”hesaid.

　　“Rightnow,peoplethinkofagingasnaturalandsomethingyoucan’tcontrol,”hesaid.“INacademiccircles,peopletakeagingresearchasjustaninterestareawheretheycantrytodevelopinterventions.Themedicalcommunityalsotakesagingforgranted,andcandonothingaboutitexceptkeeppeoplewithinacertainhealthrange.”

　　Butifagingwererecognizedasadisease,hesaid,“Itwouldattractfundingandchangethewaywedohealthcare.Whatmattersisunderstandthatagingiscurable.”

　　“Itwasalwaysknownthatthebodyaccumulatesdamage,”headded.“Theonlywaytocureagingistofindwaystorepairthatdamage.Ithinkofitaspreventivemedicineforage-relatedconditions.”

　　LeonardHayflick,aprofessorattheUniversityofCalifornia,SanFrancisco,saidtheideathatagingcanbecuredimpliesthehumanlifespancanbeincreased,whichsomeresearcherssuggestispossible.Hayflickisnotamongthem.

　　“There’remanypeoplewhorecoverfromcancer,stroke,orheartdisease.Buttheycontinuetoage,becauseagingisseparatefromtheirdisease,”Hayflicksaid.“Evenifthosecausesofdeathwereeliminated,lifeexpectancywouldstillnotgomuchbeyond92years.”

　　46.Whatdopeoplegenerallybelieveaboutaging?

　　A）Itshouldcausenotalarmwhatsoever.

　　B）Theyjustcannotdoanythingaboutit.

　　C）Itshouldberegardedasakindofdisease.

　　D）Theycandelayitwithadvancesinscience.

　　47.Howdomanyscientistsviewagingnow?

　　A）Itmightbepreventedandtreated.C）Itresultsfromavitamindeficiency.

　　B）Itcanbeasriskyasheartdisease.D）Itisanirreversiblebiologicalprocess.

　　48.WhatdoesAlexZhavoronkovthinkof“describingagingasadisease”?

　　A）Itwillpromptpeopletotakeagingmoreseriously.

　　B）Itwillgreatlyhelpreducethesideeffectsofaging.

　　C）Itwillfreepharmacistsfromtheconventionalbeliefsaboutaging.

　　D）Itwillmotivatedoctorsandpharmaciststofindwaystotreataging.

　　49.Whatdowelearnaboutthemedicalcommunity?

　　A）Theynowhaveastronginterestinresearchonaging.

　　B）Theydifferfromtheacademiccirclesintheirviewonaging.

　　C）Theycancontributetopeople’shealthonlytoalimitedextent.

　　D）Theyhavewaystointerveneinpeople’sagingprocess.

　　50.WhatdoesProfessorLeonardHayflickbelieve?

　　A）Thehumanlifespancannotbeprolonged.

　　B）Agingisha