大学英语六级真题第三套完整版.docx

大学英语六级真题第三套完整版.docx

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大学英语六级真题第三套完整版

PartIWriting（30minutes）

Directions:

Supposeyouareaskedtogiveadviceonwhethertoattendcollegeathomeorabroad,writeanessaytostateyouropinion.Youarerequiredtowriteatleast150wordsbutnomorethan200words.

【参考文】

WhethertoAttendCollegeatHomeorAbroad?

Currently,withstudyingabroadgainsmountingpopularityamongpeople,thereisaheateddebateaboutwhethertoattendcollegeathomeorabroad.Opinionsonthistopicvaryfrompersontoperson.Someseemorebenefitsinstudyingathomewhileothersclaimthatstudyingabroadisamoreidealchoiceasit’smorechallenging.

Personally,Iamastrongfavorerofthelatterview.Listedbelowarethereasonsformyadvice.Firstofall,attendingcollegeabroadprovidesanopportunitytobroadenone’sexperienceandmind.Youcanacquirecross-culturalexperiencesandgainnewperspectivesonyourchosenfieldofstudy.Inaddition,studyingabroadhelpsyoutopolishyoursocialskills;youcanmakefriendswithdifferentpeoplewithdifferentbackground.Thirdly,overseasstudyingisconducivetotheformationofanindependent,autonomousandtenaciouspersonality,whichwillultimatelybenefittheachievementofourlifegoals.

Justasanoldsayinggoes:

“Itisbettertotravelthousandmilesthantoreadtenthousandbooks.”Thenstudyingabroadcannotonlyenableustoreapinourbooks,butalsoinourtrips.Andthisiswhyattendingcollegeabroadisapreferableselectionforme.

PartIIListeningComprehension

说明：

2017年6月大学英语六级真题全国共考了两套听力。

本套（即第三套）的听力材料与第一套完全一样，只是选项的顺序不同而已，故本套不再重复给出。

PartIIIReadingComprehension（40minutes）

SectionA

Directions:

Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.

Halfofyourbrainstaysalertandpreparedfordangerwhenyousleepinanewplace,astudyhasrevealed.Thisphenomenonisoften__26__toasthe“first-night-effect”.ResearchersfromBrownUniversityfoundthatanetworkinthelefthemisphereofthebrain“remainedmoreactive”thanthenetworkintherightsideofthebrain.Playingsoundsintotherightears（stimulatingthelefthemisphere）of__27__wasmorelikelytowakethemupthanifthenoiseswereplayedintotheirleftear.

Itwas__28__observedthattheleftsideofthebrainwasmoreactiveduringdeepsleep.Whentheresearchersrepeatedthelaboratoryexperimentonthesecondandthirdnightstheyfoundthelefthemispherecouldnotbestimulatedinthesamewayduringdeepsleep.Theresearchersexplainedthatthestudydemonstratedwhenweareina__29__environmentthebrainpartlyremainsalertsothathumanscandefendthemselvesagainstany__30__danger.

Theresearchersbelievethisisthefirsttimethatthe“first-night-effect”ofdifferentbrainstateshasbeen__31__inhumans.Itisn’t,however,thefirsttimeithaseverbeenseen.Someanimal__32__alsodisplaythisphenomenon.Forexample,dolphins,aswellasother__33__animals,shutdownonehemisphereofthebrainwhentheygotosleep.Apreviousstudynotedthatdolphinsalways__34__controltheirbreathing.Withoutkeepingthebrainactivewhilesleeping,theywouldprobablydrown.But,asthehumanstudysuggest,anotherreasonfordolphinskeepingtheireyesopenduringsleepisthattheycanlookoutfor__35__whileasleep.Italsokeepstheirphysiologicalprocessesworking.

A）classifiedB）consciouslyC）dramaticallyD）exoticE）identified

F）inherentG）marineH）novelI）potentialJ）predators

K）referredL）speciesM）specificallyN）varietiesO）volunteers

26.【解析】K。

空格前是系动词is和副词often，空格后是不定式to，所以此空应该填入一个形容词或者动词的-ed形式。

选项referred符合句意。

bereferredtoas为固定搭配，意为“被称为”。

故选K。

27.【解析】O。

空格前是名词词组therightears和介词of，空格后是系动词was，所以此空应该填入一个表示人的名词，表示所属关系。

选项volunteers符合句意。

故选O。

28.【解析】M。

空格前是系动词was，空格后是动词的-ed形式observed，所以此空应该填入一个副词，修饰observed。

选项specifically

符合。

故选M。

29.【解析】H。

空格前是不定冠词a；空格后是名词environment，所以此空应该填入一个形容词。

选项novel符合句意。

故选H。

30.【解析】I。

空格前是代词any，空格后是名词danger，所以此空应该填入一个形容词。

选项potential符合句意。

故选I。

31.【解析】E。

空格前是现在完成时的标志词hasbeen，空格后是介词词组inhumans，所以此空应该填入一个动词的-ed形式。

选项identified符合句意。

故选E。

32.【解析】L。

空格前是名词animal，空格后是副词also和动词display,谓语和宾语完整，所以此空应该填入一个名词，与someanimal构成名词词组，作主语。

选项species符合句意。

故选L。

33.【解析】G。

空格前是代词other，空格后是名词animals，所以此空应该填入一个形容词。

选项marine符合句意。

故选G。

34.【解析】B。

空格前是宾语从句的主语dolphins和副词always，空格后是谓语动词control，所以此空应该填入一个副词，修饰control。

选项consciously符合句意。

故选B。

35.【解析】J。

空格前是谓语动词lookoutfor，空格后是时间状语从句whileasleep，所以此空应该填入一个名词，作表语从句的谓语。

选项predators符合句意。

故选J。

SectionB

Directions:

Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.AnswerthequestionsbymarkingthecorrespondingletteronAnswerSheet2.

EliteMathCompetitionsStruggletoDiversifyTheirTalentPool

[A]Interestinelitehighschoolmathcompetitionshasgrowninrecentyears,andinlightoflastsummer’sU.S.winattheInternationalMathOlympiad（IMO）---thefirstforanAmericanteaminmorethantwodecades—thetrendislikelytocontinue.

[B]Butwillsuchcontests,whichareoverwhelminglydominatedbyAsianandwhitestudentsfrommiddle-classandaffluentfamilies,becomeanymorediverse?

Manysocialandculturalfactorsplayrolesindeterminingwhichpromisingstudentsgetonthepathtowardinternationalmathrecognition.Buteffortsareinplacetoexposemoreblack,Hispanic,andlow-incomestudentstoadvancedmath,inthehopethatthedemographicpoolofhigh-levelcontenderswilleventuallybegintoshiftandbecomelessexclusive.

[C]“Thechallengeisifcertaintypesofpeoplearedoingsomething,it’sdifficultforotherpeopletobreakintoit,”saidPo-ShenLoh,theheadcoachoflastyear’swinningU.S.MathOlympiadteam.Participationgrowsthroughfriendsandnetworksandif“yourealizethat’showthey’regrowing,youcanstarttotakeaction”andbringinotherstudents,hesaid.

[D]Mostofthetrainingforadvanced-mathcompetitionshappensoutsidetheconfinesofthenormalschoolday.Studentsattendafter-schoolclubs,summercamps,onlineforumsandclasses,anduniversity-based“mathcircles”,toprepareforthecompetitions.

[E]Oneofthelargestfeedersforhighschoolmathcompetitions—includingthosethateventuallyleadtotheIMO—isamiddleschoolprogramcalledMathCounts.About100,000studentsaroundthecountryparticipateintheprogram’scompetitionseries,whichculminatesinanationalgame-show-stylecontestheldeachMay.ThemostrecentonetookplacelastweekinWashington,D.C.Studentsjoinateamthroughtheirschools,whichprovideavolunteercoachandpayanominalfeetosendstudentstoregionalandstatecompetitions.The224studentswhomakeittothenationalcompetitiongetanall-expenses-paidtrip.

[F]Nearlyallmembersoflastyear’swinningU.S.IMOteamtookpartinMathCountsasmiddleschoolstudents,asdidLoh,thecoach.“Middleschoolisanimportantagebecausestudentshaveenoughmathcapabilitytosolveadvancedproblems,buttheyhaven’treallydecidedwhattheywanttodowiththeirlives,”saidLoh.“Theyoftengethookedthen.”

[G]Anotherinfluentialfeederforadvanced-mathstudentsisanonlineschoolcalledArtofProblemSolving,whichbeganabout13yearsagoandnowhas15,000users.Studentsuseforumstochat,playgames,andsolveproblemstogetheratnocost,ortheycanpayafewhundreddollarstotakecourseswithtrainedteachers.AccordingtoRichardRusczyk,thecompanyfounder,thesixU.S.teammemberswhocompetedattheIMOlastyearcollectivelytookmorethan40coursesonthesite.Parentsofadvanced-mathstudentsandMathCountscoachessaythechildrenareonthewebsiteconstantly.

[H]Therearealsodozensofsummercamps—manyattachedtouniversities—thataimtoprepareelitemathstudents.Somearepricey---athree-weekintensiveprogramcancost$4,500ormore—butmostofferscholarships.TheMathOlympiadSummerTrainingProgramisathree-weekmathcampheldbytheMathematicalAssociationofAmericathatleadsstraighttotheinternationalchampionshipandisfreeforthosewhomakeit.Onlyabout50studentsareinvitedbasedontheirperformanceonwrittentestsandattheUSAMathOlympiad.

[I]Studentsinuniversitytownsmayalsohaveaccesstoanotherleverforinvolvementinacceleratedmath:

mathcircles.Inthesegroups,whichcameoutofanEasternEuropeantraditionofdevelopingyoungtalent,professorsteachpromisingK-12studentsadvancedmathematicsforseveralhoursafterschooloronweekends.TheLosAngelesMathCircle,heldattheUniversityofCalifornia,LosAngeles,beganin2007with20studentsandnowhasmorethan250.“Thesemathcirclescostnothing,orthey’reverycheapforstudentstogetinvolvedin,butyouhavetoknowaboutthem,”saidRusczyk.“Mostpeoplewouldlovetogetstudentsfrommoreunderservedpopulations,buttheyjustcan’tgettheminthedoor.Partofitiscommunication;partofitistransportation.”

[J]It’snosecretintheadvanced-mathcommunitythatdiversityisaproblem.AccordingtoMarkSaul,thedirectorofcompetitionsfortheMathematicalAssociationofAmerica,notasingleAfrican-AmericanorHispanicstudent---andonlyahandfulofgirls---hasevermadeittotheMathOlympiadteaminits50yearsofexistence.Manyschoolssi