大學英語六級真題試卷

大學英語六級真題試卷PartIListeningComprehension(20minutes)SectionADirections:Inthissection,youwillhear10shortconversations.Attheendofeachconversation,aquestionwillbeaskedaboutwhatwassaid.Boththeconversationandthequestionwillbespokenonlyonce.Aftereachquestiontherewillbeapause.Duringthepause,youmustreadthefourchoicesmarkedA),B),C)andD),anddecidewhichisthebestanswer.ThenmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecentre.Example:Youwillhear:Youwillread:2hours.3hours.4hours.5hours.Fromtheconversationweknowthatthetwoaretalkingaboutsomeworktheywillstartat9o’clockinthemorningandhavetofinishat2intheafternoon.Therefore,D)“5hours”isthecorrectanswer.Youshouldchoose[D]ontheAnswerSheetandmarkitwithasinglelinethroughthecenter.SampleAnswer[A][B][C][D]A)Themanattendedtheconcert,butdidn'tlikeit.Themanwassorrytomissthefootballgame.Themanismoreinterestedinfootballthaninclassicalmusic.Themanwassorrythathedidn'tattendtheconcert.A)Singingloudly.Listeningtomusic.Studying.Talkingonthephone.A)Shecan’treceiveanycalls.Shecan'tmakeanycalls.Shecandonothingwiththephone.Shecan'trepairthephone.A)Tomisveryresponsible.Tom'swordsaren'treliable.WhatTomsaidistrue.Tomisnothumorousatall.A)Howtouseacamera.Howtouseawasher.Howtouseakeyboard.Howtouseataperecorder.A)Theyshouldputthemeetingtoanend.Theyshouldholdanothermeetingtodiscussthematter.Shewouldliketodiscussanotheritem.Shewantstodiscusstheissueagainlater.A)HebelievestheBrownshavedoneasensiblething.Hedoesn'tthinktheBrownsshouldmovetoanotherplace.Hedoesn'tthinktheBrowns' investmentisawisemove.HebelievesitisbetterfortheBrownstoinvestlater.A)Hemayconvertitanduseitasarestaurant.Hemaypullitdownandbuildanewrestaurant.Hemayrentitoutforuseasarestaurant.Hemaysellittotheownerofarestaurant.A)Shedoesn'tlikethewaytheprofessorlectures.She’shavingahardtimefollowingtheprofessor'slectures.Sheisnotinterestedincourse.She'shavingdifficultywiththeheavyreadingassignments.A)Heneverkeepshispromises.Heiscrazyaboutparties.Hehaschangedhismind.Heisnotsociable.SectionBCompoundDictationDirections:Inthissection,youwillhearapassagetreetimes.Whenthepassageisreadforthefirsttime,youshouldlistencarefullyforitsgeneralidea.Thenlistentothepassageagain.Whenthepassageisreadforthesecondtime,youarerequiredtofillintheblanksnumberedfromS1toS7withtheexactwordsyouhavejustheard.ForblanksnumberedS8toS10youarerequiredtofillinmissinginformation.Youcaneitherusetheexactwordsyouhavejustheardorwritedownthemainpointsinyourownwords.Finally,whenthepassageisreadforthethirdtime,youshouldcheckwhatyouhavewritten.PresidentClintonlatertodayjoins(S1)presidentsFord,CarterandBushat“thepresident'ssummitforAmerica'sfuture”(S2)atrecruitingonemillionvolunteertutorstoprovideafter-school,weekendandsummerreadinghelpforuptothreemillionchildren.Mr.ClintonwillaskCongressthiscomingweekfornearlythree(S3)dollarstofundafive-yearprogramcalled“AmericaReads”.Theprogramwouldfundthe(S4)effortsof20thousandreading(S5)anditwouldalsogive(S6)tohelpparentshelpchildrenreadbythethirdgrade,oraboutageeight.DuringhisSaturdayradio(S7),thepresidentexplainedwhytheprogramisimportant.“Weneed'AmericaReads'andweneeditnow.Studiesshowthatifthefourth-gradersfailtoreadwell,(S8).But,40percentofthemstillcan’treadatabasiclevel.”Volunteertutors,whoprovidecommunityserviceinexchangeforcollegefunding,arebeingusedinliteracyandtutoringprograms.(S9).ThepresidentsaysmanyofthePhiladelphiasummit'scorporatesponsorswillrecruittutors.(S10).PartIIReadingComprehension(35minutes)Directions:Thereare4readingpassagesinthispart.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD),YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthecenter.Questions11to15arebasedonthefollowingpassage.Wesometimesthinkhumansareuniquelyvulnerabletoanxiety,butstressseemstoaffecttheimmunedefensesofloweranimalstoo.Inoneexperiment,forexample,behavioralimmunologist(免疫學家)MarkLaudenslager,attheUniversityofDenver,gavemildelectricshocksto24rats.Halftheanimalscouldswitchoffthecurrentbyturningawheelintheirenclosure,whiletheotherhalfcouldmot.Theratsinthetwogroupswerepairedsothateachtimeoneratturnedthewheelitprotectedbothitselfanditshelplesspartnerfromtheshock.Laudenslagerfoundthattheimmuneresponsewasdepressedbelownormalinthehelplessratsbutnotinthosethatcouldturnofftheelectricity.Whathehasdemonstrated,hebelieves,isthatlackofcontroloveranevent,nottheexperienceitself,iswhatweakenstheimmunesystem.Otherresearchersagree.JayWeiss,apsychologistatDukeUniversitySchoolofMedicine,hasshownthatanimalswhoareallowedtocontrolunpleasantstimulidon’tdevelopsleepdisturbancesorchangesinbrainchemistrytypicalofstressedrats.Butiftheanimalsareconfrontedwithsituationstheyhavenocontrolover,theylaterbehavepassivelywhenfacedwithexperiencestheycancontrol.Suchfindingsreinforcepsychologists'suspicionsthattheexperienceorperceptionofhelplessnessisoneofthemostharmfulfactorsindepression.Oneofthemoststartlingexamplesofhowthemindcanaltertheimmuneresponsewasdiscoveredbychance.In1975psychologistRobertAderattheUniversityofRochesterSchoolofMedicineconditioned（使形成條件反射）micetoavoidsaccharin（糖精）bysimultaneouslyfeedingthemthesweetenerandinjectingthemwithadrugthatwhilesuppressingtheirimmunesystemscausedstomachupsets.Associatingthesaccharinwiththestomachpains,themicequicklylearnedtoavoidthesweetener.Inordertoextinguishthisdislikeforthesweetener,Aderreexposedtheanimalstosaccharin,thistimewithoutthedrug,andwasastonishedtofindthatthosemicethathadreceivedthehighestamountsofsweetenerduringtheirearlierconditioningdied.Hecouldonlyspeculatethathehadsosuccessfullyconditionedtheratsthatsaccharinalonenowservedtoweakentheirimmunesystemsenoughtokillthem.Laudenslager'sexperimentshowedthattheimmunesystemofthoseratswhocouldturnofftheelectricity.wasstrengthenedwasnotaffectedwasalteredwasweakenedAccordingtothepassage,theexperienceofhelplessnesscausesratsto.trytocontrolunpleasantstimuliturnofftheelectricitybehavepassivelyincontrollablesituationsbecomeabnormallysuspiciousThereasonwhythemiceinAder’sexperimentavoidedsaccharinwasthat.theydislikeditstasteitaffectedtheirimmunesystemsitledtostomachpainstheyassociateditwithstomachachesThepassagetellsusthatthemostprobablereasonforthedeathofthemiceinAder'sexperimentwasthat.theyhadbeenweakenedpsychologicallybythesaccharinthesweetenerwaspoisonoustothemtheirimmunesystemshadbeenalteredbythemindtheyhadtakentoomuchsweetenerduringearlierconditioningItcanbeconcludedfromthepassagethattheimmunesystemsofanimals.canbeweakenedbyconditioningcanbesuppressedbydruginjectionscanbeaffectedbyfrequentdosesofsaccharincanbealteredbyelectricshocksQuestions16to20arebasedonthefollowingpassage.Thedestructionofournaturalresourcesandcontaminationofourfoodsupplycontinueoccur,largelybecauseoftheextremedifficultyinaffixing(把???固定)legalresponsibilityonthosewhocontinuetotreatourenvironmentwithrecklessabandon(放任).Attemptstopreventpollutionbylegislation,economicincentivesandfriendlypersuasionhavebeennetbylawsuits,personalandindustrialdenialandlongdelays——notonlyinacceptingresponsibility,butmoreimportantly,indoingsomethingaboutit.Itseemsthatonlywhengovernmentdecidesitcanaffordtaxincentivesorproductionsacrificesisthereanyinitiativeforchange.Whereisindustry'sandourrecognitionthatprotectingmankind'sgreattreasureisthesinglemostimportantresponsibility?Ifevertherewillbetimeforenvironmentalhealthprofessionalstocometothefrontlinesandprovideleadershiptosolveenvironmentalproblems,thattimeisnow.Wearebeingasked,and,infact,thepublicisdemandingthatwetakepositiveaction.Itisourresponsibilityasprofessionalsinenvironmentalhealthtomakethedifference.Yes,theecologists,theenvironmentalactivistsandtheconservationistsservetocommunicate,stimulatethinkingandpromotebehavioralchange.However,itisthoseofuswhoarepaidtomakethedecisionstodevelop,improveandenforceenvironmentalstandards,Isubmit,whomustleadthecharge.Wemustrecognizethatenvironmentalhealthissuesdonotstopatcitylimits,countylines,stateorevenfederalboundaries.Wecannolongeraffordtobetunnel-visionedinourapproach.Wemustvisualizeissuesfromeveryperspectivetomaketheobjectivedecisions.Wemustexpressourviewsclearlytopreventmediadistortionandpublicconfusion.Ibelievewehaveathree-partmissionforthepresent.First,wemustcontinuetopressforimprovementsinthequalityoflifethatpeoplecanmakeforthemselves.Second,wemustinvestigateandunderstandthelinkbetweenenvironmentandhealth.Third,wemustbeabletocommunicatetechnicalinformationinaformthatcitizenscanunderstand.Ifwecanaccomplishthesethreegoalsinthisdecade,maybewecanfinallystopenvironmentaldegradation,andnotmerelyholditback.Wewillthenbeabletospendpollutiondollarstrulyonpreventionratherthanonbandages.Wecaninferfromthefirsttwoparagraphsthattheindustrialistsdisregardenvironmentalprotectionchieflybecause.theyareunawareoftheconsequencesofwhattheyaredoingtheyarereluctanttosacrificetheirowneconomicintereststimehasnotyetcomeforthemtoputdueemphasisonititisdifficultforthemtotak