2020年度版6月大学英语四级第2套真题和答案

6月大学英语四级试卷（第2套)PartIWritingDirections:Forthispart,youareallowed30minutestowritealettertoexpressyourthankstooneofyourschoolteachersuponenteringcollege. Youshouldwriteatleast120wordsbutnomorethan180words. 时间 25minutes 自测用时 minutesPartⅡListeningComprehensionSectionADirections:Inthissection,youwillhearthreenewsreports.Attheendofeachnewsreport,youwillheartwoorthreequestions.Boththenewsreportandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions1and2arebasedonthenewsreportyouhavejustheard.1.A)Howcollegestudentscanimprovetheirsleephabits.B)Whysufficientsleepisimportantforcollegestudents.C)Whycollegestudentsaremorelikelytohavestressproblems.D)Howcollegestudentscanhandletheirpsychologicalproblems.2.A)Itisnoteasytoimproveone’ssleephabits.B)Itisnotgoodforstudentstoplayvideogames.C)Studentswhoarebetterpreparedgenerallygethigherscoresinexaminations.D)Makinglast-minutepreparationsfortestsmaybelesseffectivethansleeping.Questions3and4arebasedonthenewsreportyouhavejustheard.3.A)WhethermoreairportsshouldbebuiltaroundLondon.B)Whetheradequateinvestmentisbeingmadetoimproveairportfacilities.C)WhethertheBritishAirportsAuthorityshouldselloffsomeofitsassets.D)WhethertheSpanishcompanycouldofferbetterservice.4.A)Inefficientmanagement.B)Poorownershipstructure.C)Lackofinnovationandcompetition.D)Lackofrunwayandterminalcapacity.Questions5to7arebasedonthenewsreportyouhavejustheard.5.A)Reportthenicotinecontentoftheircigarettes.B)Setalimittotheproductionoftheircigarettes.C)Takestepstoreducenicotineintheirproducts.D)Studytheeffectsofnicotineonyoungsmokers.6.A)Thebiggestincreaseinnicotinecontenttendedtobeinbrandsyoungsmokerslike.B)Bigtobaccocompanieswerefrankwiththeircustomersaboutthehazardsofsmoking.C)Brandswhichcontainhighernicotinecontentwerefoundtobemuchmorepopular.D)Tobaccocompaniesrefusedtodiscussthedetailednicotinecontentoftheirproducts.7.A)Theypromisedtoreducethenicotinecontentincigarettes.B)Theyhavenotfullyrealizedtheharmfuleffectofnicotine.C)Theywerenotpreparedtocommentonthecigarettestudy.D)Theywillpaymoreattentiontothequalityoftheirproducts.SectionBDirections:Inthissection,youwillheartwolongconversations.Attheendofeachconversation,youwillhearfourquestions.Boththeconversationandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions8to11arebasedontheconversationyouhavejustheard.8.A)Indonesia.B)Holland.C)Sweden.D)England.)Gettingacoachwhocanofferrealhelp.B)TalkingwithherboyfriendinDutch.C)Learningalanguagewhereitisnotspoken.D)Acquiringthenecessaryabilitytosocialize.10.A)Listeninglanguageprogramsontheradio.B)Tryingtospeakitasmuchasonecan.C)Makingfriendswithnativespeakers.D)Practicingreadingaloudasoftenaspossible.)Itcreatesanenvironmentforsocializing.B)Itoffersvariouscourseswithcreditpoints.C)Ittrainsyoungpeople’sleadershipabilities.D)Itprovidesopportunitiesforlanguagepractice.Questions12to15arebasedontheconversationyouhavejustheard.12.A)Theimpactofenginedesignonrodesafety.B)Therolepolicemenplayintrafficsafety.C)Asenseoffreedomdrivinggives.D)Rulesandregulationsfordriving.13.A)Makecarswithautomaticcontrol.B)Makecarsthathavebetterbrakes.C)Makecarsthatarelesspowerful.D)Makecarswithhigherstandards.14.A)Theytendtodriveresponsibly.B)Theyliketogoathighspeed.C)Theykeepwithinspeedlimits.D)Theyfollowtrafficrulesclosely.)Itisabadidea.B)Itisnotuseful.C)Itisaseffectiveasspeedbumps.D)Itshouldbecombinedwitheducation.SectionCDirections:Inthissection,youwillhearthreepassages.Attheendofeachpassage,youwillhearthreeorfourquestions.Boththepassageandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions16to18arebasedonthepassageyouhavejustheard.)Thecardgotdamaged.B)Thecardwasfoundinvalid.C)Thecardreaderfailedtodothescanning.D)Thecardreaderbrokedownunexpectedly.17.A)Byconvertingthecreditcardwithalayerofplastic.B)Bycallingthecreditcardcompanyforconfirmation.C)ByseekinghelpfromthecardreadermakerVerifone.D)Bytypingthecreditcardnumberintothecashregister.)Affectthesalesofhigh-techappliances.B)ChangethelifestyleofmanyAmericans.C)Givebirthtomanynewtechnologicalinventions.D)Producemanylow-techfixesforhigh-techfailures.Questions19to21arebasedonthepassageyouhavejustheard.19.A)Theyaresetbythedeanofthegraduateschool.B)Theyaredeterminedbytheadvisingboard.C)Theyleavemuchroomforimprovement.D)Theyvaryamongdifferentdepartments.20.A)Byconsultingtheexaminingcommittee.B)ByreadingtheBulletinofInformation.C)Bycontactingthedepartmentaloffice.D)Byvisitingtheuniversity’swebsite.21.A)Theyspecifythenumberofcreditsstudentsmustearn.B)Theyarehardertomeetthanthoseforundergraduates.C)Theyhavetobeapprovedbytheexaminingcommittee.D)Theyarethesameamongvariousdivisionsoftheuniversity.Questions22to25arebasedonthepassageyouhavejustheard.22.A)Studentsmajoringinnutrition.B)Studentsinhealthclasses.C).candidatesindieting.D)Middleandhighschoolteachers.23.A)Itsoverestimateoftheeffectofdieting.B)Itsmistakenconceptionofnutrition.C)Itschangingcriteriaforbeauty.D)Itsoveremphasisonthinness.24.A)Toillustrateherpointthatbeautyisbutskindeep.B)Todemonstratethemagiceffectofdietingonwomen.C)Toexplainhowcomputerimagescanbemisleading.D)Toprovethattechnologyhasimpactedourculture.25.A)Topersuadegirlstostopdieting.B)Topromoteherownconceptofbeauty.C)Toestablishanemotionalconnectionwithstudents.D)Tohelpstudentsridthemselvesofbadlivinghabits. 标准时间 40minutes 自测用时 minutesPartIIIReadingComprehensionSectionADirections:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.Contrarytopopularbelief,olderpeoplegenerallydonotwanttolivewiththeirchildren.Moreover,mostadultchildren26everybitasmuchcareandsupporttotheiragingparentsaswasthecaseinthe“goodolddays”,andmostolderpeopledonotfeel27.About80%ofpeople65yearsandolderhavelivingchildren,andabout90%ofthemhave28contactwiththeirchildren.About75%ofelderlyparentswhodon’tgotonursinghomeslivewithin30minutesofatleastoneoftheirchildren.However,29havingcontactwithchildrendoesnotguaranteehappinessinoldage.Infact,someresearchhasfoundthatpeoplewhoaremostinvolvedwiththeirfamilieshavethelowestspirits.Thisresearchmaybe30,however,asillhealthoftenmakesolderpeoplemore31andtherebyincreasescontactwithfamilymembers.Soitismorelikelythatpoorhealth,notjustfamilyinvolvement,32spirits.Increasingly,researchershavebeguntolookatthequalityofrelationships,ratherthanatthefrequencyofcontact,betweentheelderlyandtheirchildren.Ifparentsandchildrenshareinterestsandvaluesandagreeonchildrearingpracticesandreligious33,theyarelikelytoenjoyeachother’scompany.Disagreementsonsuchmatterscan34causeproblems.Ifparentsareagreedbytheirdaughter’sdivorce,dislikehernewhusband,anddisapproveofhowsheisraisingtheirgrandchildren,35arethattheyarenotgoingtoenjoyhervisits.  A)abandoned                  E)commitmentI)frequentM)provide B)advanced                   F)dampensJ)fulfillmentN)understandably C)biased                      G)dependentK)grantO)unrealistically D)chances                     H)distantL)merely                 SectionBDirections:Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.AnswerthequestionsbymarkingthecorrespondingletteronAnswerSheet2.CouldFoodShortagesBringDownCivilization?[A]FormanyyearsIhavestudiedglobalagricultural,population,environmentalandeconomictrendsandtheirinteractions.Thecombinedeffectsofthosetrendsandthepoliticaltensionstheygeneratepointtothebreakdownofgovernmentsandsocieties.YetI,too,haveresistedtheideathatfoodshortagescouldbringdownnotonlyindividualgovernmentsbutalsoourglobalcivilization.[B]Icannolongerignorethatrisk.Ourcontinuingfailuretodealwiththeenvironmentaldeclinesthatareunderminingtheworldfoodeconomyforcesmetoconcludethatsuchacollapseispossible.[C]Asdemandforfoodrisesfasterthansuppliesaregrowing,theresultingfood-priceinflationputsseverestressonthegovernmentsofmanycountries.Unabletobuygrainorgrowtheirown,hungrypeopletaketothestreets.Indeed,evenbeforethesteepclimbingrainpricesin,thenumberoffailingstateswasexpanding.Ifthefoodsituationcontinuestoworsen,entirenationswillbreakdownataneverincreasingrate.Inthe20thcenturythemainthreattointernationalsecuritywassuperpowerconflict;todayitisfailingstates.[D]Statesfailwhennationalgovernmentscannolongerprovidepersonalsecurity,foodsecurityandbasicsocialservicessuchaseducationandhealthcare.Whengovernmentslosetheircontrolonpower,lawandorderbegintodisintegrate.Afterapoint,countriescanbecomesodangerousthatfoodreliefworkersarenolongersafeandtheirprogramsarehalted.Failingstatesareofinternationalconcernbecausetheyareasourceofterrorists,drugs,weaponsandrefugees(难民),threateningpoliticalstabilityeverywhere.[E]Thesurgeinworldgrainpricesinand—andthethreattheyposetofoodsecurity——hasadifferent,moretroublingqualitythantheincreasesofthepast.Duringthesecondhalfofthe20thcentury,grainpricesrosedramaticallyseveraltimes.In1972,forinstance,theSoviets,recognizingtheirpoorharvestearly,quietlycorneredtheworldwheatmarket.Asaresult,wheatpriceselsewheremorethandoubled,pullingriceandcornpricesupwiththem.Butthisandotherpriceshockswereevent-driven——droughtintheSovietUnion,crop-shrinkingheatinthe.CornBelt.Andtheriseswereshort-lived:pricestypicallyreturnedtonormalwiththenextharvest.[F]Incontrast,therecentsurgeinworldgrainpricesistrend-driven,makingitunlikelytoreversewithoutareversalinthetrendsthemselves.Onthedemandside,thosetrendsincludetheongoingadditionofmorethan70millionpeopleayear,agrowingnumberofpeoplewantingtomoveupthefoodchaintoconsumehighlygrain-intensivemeatproducts,andthemassivediversion(转向)of.graintotheproductionofbio-fuel.[G]Asincomesriseamonglow-incomeconsumers,thepotentialforfurthergrainconsumptionishuge.Butthatpotentialpalesbesidethenever-endingdemandforcrop-basedfuels.Afourthofthisyear’s.grainharvestwillgotofuelcars.[H]Whataboutsupply?Thethreeenvironmentaltrends——theshortageoffreshwater,thelossoftopsoilandtherisingtemperatures——aremakingitincreasinglyhardtoexpandtheworld’sgrainsupplyfastenoughtokeepupwithdemand.Ofallthosetrends,however,thespreadofwatershortagesposesthemostimmediatethreat.Thebiggestchallengehereisirrigation,whichconsumes70%theworld’sfreshwater.Millionsofirrigationwellsinmanycountriesarenowpumpingwateroutofundergroundsourcesfasterthanrainfallcanrefillthem.Theresultisfallingwatertables(地下水位)incountrieswithhalftheworld’speople,includingthethreebiggrainproducers——China,Indiaandthe.[I]Aswatertableshavefallenandirrigationwellshavegonedry,China’swheatcrop,theworld’slargest,hasdeclinedby8%sinceitpeakedat123milliontonsin1997.ButwatershortagesareevenmoreworryinginIndia.Millionsofirrigationwellshavesignificantlyloweredwatertablesinalmosteverystate.[J]Astheworld’sfoodsecurityfallstopieces,individualcountriesactingintheirownself-interestareactuallyworseningthetroublesofmany.Thetrendbeganin,whenleadingwheat-exportingcountriessuchasRussiaandArgentinalimitedorbannedtheirexports,inhopesofincreasinglocalfoodsuppliesandtherebybringingdowndomesticfoodprices.Vietnambanneditsexportsforseveralmonthsforthesamereason.Suchmovesmayeliminatethefearsofthoselivingintheexportingcountries,buttheyarecreatingpanicinimportingcountriesthatmustrelyonwhatisthenleftforexport.[K]Inresponsetothoserestrictions,grain-importingcountriesaretryingtonaildownlong-termtradeagreementsthatwouldlockupfuturegrainsupplies.Food-importanxietyisevenleadingtoneweffortsbyfood-importingcountriestobuyorleasefarmlandinothercountries.Inspiteofsuchtemporarymeasures,soaringfoodpricesandspreadinghungerinmanyothercountriesarebeginningtobreakdownthesocialorder.[L]Sincethecurrentworldfoodshortageistrend-driven,theenvironmentaltrendsthatcauseitmustbereversed.Wemustcutcarbonemissionsby80%fromtheirlevelsby2020,stabilizetheworld’spopulationateightbillionby2040,completelyremovepoverty,andrestoreforestsandsoils.Thereisnothingnewaboutthefourobjectives.Indeed,wehavemadesubstantialprogressinsomepartsoftheworldonatleastoneofthese——thedistributionoffamily-planningservicesandtheassociatedshifttosmallerfamilies.[M]Formanyinthedevelopmentcommunity,thefourobjectiveswereseenaspositive,promotingdevelopmentaslongastheydidnotcosttoomuch.Otherssawthemaspoliticallycorrectandmorallyappropriate.Nowathirdandfarmoresignificantmotivationpresentsitself:meetingthesegoalsmaybenecessarytopreventthecollapseofourcivilization.Yetthecostweprojectforsavingcivilizationwouldamounttolessthan$200billionayear,1/6ofcurrentglobalmilitaryspending.Ineffect,ourplanisthenewsecuritybudget.morerecentsteepclimbingrainpricespartlyresultsfromthefactthatmoreandmorepeoplewanttoconsumemeatproducts.37.Socialorderisbreakingdowninmanycountriesbecauseoffoodshortages.38.Ratherthansuperpowerconflict,countriesunabletocopewithfoodshortagesnowconstitutethemainthreattoworldsecurity.39.Somepartsoftheworldhaveseensuccessfulimplementationoffamilyplanning.40.Theauthorhascometoagreethatfoodshortagescouldultimatelyleadtothecollapseofworldcivilization.41.Increasingwatershortagesprovetobethebiggestobstacletoboostingtheworld’sgrainproduction.42.Thecostforsavingourcivilizationwouldbeconsiderablylessthantheworld’scurrentmilitaryspending.43.Tolowerdomesticfoodprices,somecountrieslimitedorstoppedtheirgrainexports.44.Environmentalproblemsmustbesolvedtoeasethecurrentglobalfoodshortage.45.Aquarterofthisyear’sAmericangrainharvestwillbeusedtoproducebio-fuelforcars.SectionCDirections:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.PassageOneQuestions46to50arebasedonthefollowingpassage.Decliningmentalfunctionisoftenseenasaproblemofoldage,butcertainaspectsofbrainfunctionactuallybegintheirdeclineinyoungadulthood,anewstudysuggests.　　Thestudy,whichfollowedmorethan2,000healthyadultsbetweentheagesof18and60,foundthatcertainmentalfunctions—includingmeasuresofabstractreasoning,mentalspeedandpuzzle-solving—startedtodullasearlyasage27.　　Dipsinmemory,meanwhile,generallybecameapparentaroundage37.　　Ontheotherhand,indicatorsofaperson’saccumulatedknowledge—likeperformanceontestsofvocabularyandgeneralknowledge—keptimprovingwithage,accordingtofindingspublishedinthejournalNeurobiologyofAging.　　Theresultsdonotmeanthatyoungadultsneedtostartworryingabouttheirmemories.Mostpeople’smindsfunctionatahighlevelevenintheirlateryears,accordingtoresearcherTimothySalthouse.　　“Thesepatternssuggestthatsometypesofmentalflexibilitydecreaserelativelyearlyinadulthood,butthattheamountofknowledgeonehas,andtheeffectivenessofintegratingitwithone’sabilities,mayincreasethroughoutallofadulthoodiftherearenodiseases,”Salthousesaidinanewsrelease.　　Thestudyincludedhealthy,educatedadultswhotookstandardtestsofmemory,reasoningandperceptionattheoutsetandatsomepointoverthenextsevenyears.　　Thetestsaredesignedtodetectsubtle(细微的)changesinmentalfunction,andinvolvesolvingpuzzles,recallingwordsanddetailsfromstories,andidentifyingpatternsincollectionsoflettersandsymbols.　　Ingeneral,Salthouseandhiscolleaguesfound,certainaspectsofcognition(认知能力)generallystartedtodeclineinthelate20sto30s.　　Thefindingsshedlightonnormalage-relatedchangesinmentalfunction,whichcouldaidinunderstandingtheprocessofdementia(痴呆),accordingtotheresearchers.　　“Byfollowingindividualsovertime,”Salthousesaid,“wegaininsightincognitionchanges,andmaypossiblydiscoverwaystoslowtherateofdecline.”　　Theresearchersarecurrentlyanalyzingthestudyparticipants’healthandlifestyletoseewhichfactorsmightinfluenceage-relatedcognitivechanges.46.Whatisthecommonviewofmentalfunction?A)Itvariesfrompersontoperson.B)Itweakensinone’slateryears.　C)Itgraduallyexpandswithage.D)Itindicatesone’shealthcondition.47.Whatdoesthenewstudyfindaboutmentalfunctions?A)Somediseasesinevitablyleadtotheirdecline.B)Theyreachapeakattheageof20formostpeople.C)Theyarecloselyrelatedtophysicalandmentalexercise.D)Someofthembegintodeclinewhenpeoplearestillyoung.48.WhatdoesTimothySalthousesayaboutpeople’smindsinmostcases?　A)Theytendtodeclineinpeople’slateryears.B)Theirflexibilitydeterminesone’sabilities.C)Theyfunctionquitewelleveninoldage.　D)Theirfunctioningisstillapuzzletobesolved.49.Althoughpeople’smindsmayfunctionlessflexiblyastheyage,they_____.A)maybebetteratsolvingpuzzles　B)canmemorizethingswithmoreease　C)mayhavegreaterfacilityinabstractreasoningD)canputwhattheyhavelearntintomoreeffectiveuse50.AccordingtoSalthouse,theirstudymayhelpus_____.　A)findwaystoslowdownourmentaldeclineB)findwaystoboostourmemoriesC)understandthecomplexprocessofmentalfunctioningD)understandtherelationbetweenphysicalandmentalhealthPassageTwoQuestions51to55arebasedonthefollowingpassage.ThemostimportantthinginthenewslastweekwastherisingdiscussioninNashvilleabouttheeducationalneedsofchildren.Theshorthand(简写)educatorsuseforthisis“pre-K”—meaninginstructionbeforekindergarten—andthebigideaistoprepare4-year-oldsandevenyoungerkidstobereadytosucceedontheirK-12journey.　　Butitgetscomplicated.Theconcepthasmultipleforms,andscholarsandpolicymakersargueabouttheshape,scopeandcostoftheidealprogram.　　ThefederalHeadStartprogram,launched50yearsago,hasservedmorethan30millionchildren.ItwasbasedonconceptsdevelopedatVanderbiltUniversity’sPeabodyCollegebySusanGray,thelegendarypioneerinearlychildhoodeducationresearch.　　AnewPeabodystudyoftheTennesseeVoluntaryPre-Kprogramreportsthatpre-Kworks,butthegainsarenotsustainedthroughthethirdgrade.Itseemstomethishighlightsqualityissuesinelementaryschoolsmorethanpre-K,andindicateslonger-termsuccessmustconnectpre-Kwithalltheotherissuesrelatedtoeducatingachild.　　Pre-Kiscontroversial.Somecriticssayitisaluxuryandshouldn’tbefreetofamiliesabletopay.Pre-Kadvocatesinsistitisprovenandwillsucceedifintegratedwiththerestofthechild’sschooling.Ileantowardthelatterview.　　Thisis,inanycase,therightconversationtobehavingnowasMayorMeganBarrytakesoffice.Shewasthefirstcandidatetospeakoutforstrongpre-Kprogramming.Theimportantthingisforallofustokeepinmindtherealgoalandthelonger,biggerpicture.　　Theweightoftheevidenceisonthesideofpre-Kthatearlyintervention(干预)works.Whatgovernmenthasnotyetfoundisthepoliticalwilltoputthatunderstandingintofullpracticewithasequenceofsmartschoolingthatprovidestheearlyfoundation.　　Forthispurpose,ourschoolsneedboththetalentandtheorganizationtoeducateeachchildwhoarrivesattheschoolhousedoor.Someshowupready,butmanydonotatthiscriticaltimewhenyoungbrainsaredevelopingrapidly.doestheauthorsayaboutpre-kindergarteneducation?　A)Itshouldcatertotheneedsofindividualchildren.　B)Itisessentialtoaperson&rsqu