2026全国大学英语六级考试（CET-6）历年参考题库含答案详解

2026全国大学英语六级考试（CET-6）历年参考题库含答案详解一、选择题从给出的选项中选择正确答案（共100题）1、Theresearchteamhasbeenworkingontheprojectforthreeyears,buttheresultsarestill.A.intheairB.inprogressC.upintheairD.inthemaking2、Shethepianosinceshewasfiveyearsold,andsheplaysverywellnow.A.haslearnedB.hasbeenlearningC.learnedD.learns3、Thenewpolicyisexpectedtoasignificantimpactonthelocaleconomy.A.haveB.makeC.takeD.give4、Itisessentialthateverystudenttherequirementsofthecourse.A.meetsB.meetC.willmeetD.met5、Theconferencewasduetothesuddenshortageoffunds.A.calledoffB.calledforC.calledinD.calledon6、Thescientistmadea(n)discoverythatchangedthefieldofbiologyforever.A.accidentalB.breakthroughC.ordinaryD.minor7、theweatherforecast,itisgoingtoraintomorrow.A.AccordingtoB.BecauseofC.DespiteD.Exceptfor8、ThecompanyisfacingaseriousofleadershipaftertheCEO'ssuddenresignation.A.lackB.shortC.fewD.empty9、TheteacheraskedthestudentstotheessaybyFriday.A.handinB.handoutC.handoverD.handdown10、heisveryold,hestillworkshardeveryday.A.AlthoughB.BecauseC.IfD.Unless11、Theofthenovelliesinitscomplexcharactersandfascinatingplot.A.appealB.purposeC.meaningD.idea12、Theprofessor'slecturewassothatmanystudentsfellasleep.A.boringB.boredC.boreD.boredom13、Bythetimewearrivedatthestation,thetrainalready.A.has;leftB.had;leftC.have;leftD.was;leaving14、Thegovernmenthastakenmeasurestoairpollutioninmajorcities.A.reduceB.increaseC.produceD.create15、Thebookisworth.Ihavereadittwice.A.readingB.toreadC.readD.beingread16、ShespeaksEnglishthanherbrother.A.morefluentB.morefluentlyC.fluentlyD.mostfluently17、Thebetweenrichandpoorcountrieshasbecomeaglobalconcern.A.gapB.bridgeC.connectionD.relation18、IwishItaller,butthereisnothingIcandoaboutit.A.amB.wereC.willbeD.havebeen19、Theofthebridgewascompletedlastmonth.A.constructionB.constructC.constructiveD.constructed20、Hetofinishtheworkaheadofschedule,buthefailed.A.managedB.attemptedC.succeededD.tried21、Thegovernmentshouldtake_actiontoaddressthegrowingwealthinequality.A.decisiveB.decidedC.decisively22、Whichofthefollowingbestdescribesthemainideaofthepassageaboutartificialintelligenceethics?A.AIdevelopmentshouldbehaltedentirelytopreventharm.B.Ethicalguidelinesareunnecessaryfortechnologicalprogress.C.AbalancedapproachtoAIregulationisessentialforresponsibleinnovation.D.GovernmentsshouldhavenoroleinoverseeingAItechnologies.23、Theword"ubiquitous"inthesentence"Smartphoneshavebecomeubiquitousinmodernsociety"isclosestinmeaningto.A.rareB.expensiveC.widespreadD.complicated24、Whatcanbeinferredfromthespeaker'sstatement,"IwishIhadstudiedharderwhenIwasincollege"?A.Thespeakerstudiedhardincollege.B.Thespeakerregretsnotstudyingharderincollege.C.Thespeakeriscurrentlyincollege.D.Thespeakerdoesnotcareabouteducation.25、Choosethecorrectsentence.A.Eachofthestudentshavecompletedtheirassignments.B.Eachofthestudentshascompletedhisorherassignment.C.Eachofthestudentshavecompletedhisorherassignment.D.Eachofthestudentshascompletedtheirassignments.26、Accordingtothepassage,whatistheprimarycauseofdeforestationintropicalregions?A.Naturaldisasterssuchashurricanesandfloods.B.Agriculturalexpansionandloggingactivities.C.Urbanconstructionandinfrastructuredevelopment.D.Climatechangeandrisingglobaltemperatures.27、Theprofessor'slectureonquantummechanicswassothateventheadvancedstudentsfounditdifficulttofollow.A.straightforwardB.sophisticatedC.simplisticD.elementary28、Whatdoestheauthorimplyabouttherelationshipbetweeneconomicgrowthandenvironmentalprotection?A.Economicgrowthmustalwayscomeattheexpenseoftheenvironment.B.Thetwogoalsarecompletelyunrelatedtoeachother.C.Sustainabledevelopmentcanharmonizebothobjectives.D.Environmentalprotectionshouldbeabandonedforeconomicpurposes.29、Whichofthefollowingwordsisanantonymof"ephemeral"?A.transientB.fleetingC.permanentD.momentary30、Thedatapresentedinthechartasteadyincreaseinrenewableenergyadoptionoverthepastdecade.A.demonstrateB.demonstratesC.demonstratingD.havedemonstrated31、Whatistheauthor'stoneindiscussingtheimpactofsocialmediaonteenagementalhealth?A.Indifferentanddetached.B.Alarmedandconcerned.C.Humorousandlighthearted.D.Confidentanddismissive.32、Bythetimetheconference,alltheparticipantswillhavearrivedatthevenue.A.startsB.willstartC.startedD.hasstarted33、Theresearcher'slatestfindingstheprevailingtheory,suggestingthattheoriginalassumptionswerefundamentallyflawed.A.corroborateB.contradictC.confirmD.validate34、Despitetheoverwhelmingevidencesupportingclimateaction,somepolicymakersremain,citingeconomicconcernsastheirprimaryjustification.A.adamantB.compliantC.cooperativeD.accommodating35、Whatconclusioncanbedrawnabouttheeffectivenessofonlineeducationcomparedtotraditionalclassroomlearning?A.Onlineeducationisuniversallysuperiortoallotherforms.B.Traditionallearningiscompletelyineffectiveinthedigitalage.C.Bothformatshavedistinctadvantagesdependingonthelearningcontext.D.Onlineeducationhasnomeasurableoutcomeswhatsoever.36、Thescientistexplainedthatthephenomenoncouldnotbebyexistingtheoreticalframeworksalone.A.ignoredB.overlookedC.accountedforD.disregarded37、Whichsentenceusesthesubjunctivemoodcorrectly?A.IfIwasrich,Iwouldtraveltheworld.B.IfIwererich,Iwouldtraveltheworld.C.IfIamrich,Iwouldtraveltheworld.D.IfIberich,Iwouldtraveltheworld.38、Theterm"cognitivedissonance"refersto.A.thepleasurederivedfromsolvingcomplexproblemsB.thementaldiscomfortexperiencedwhenholdingcontradictorybeliefsC.theabilitytomemorizelargeamountsofinformationefficientlyD.thetendencytopreferfamiliarinformationovernewinformation39、Thecommitteeunanimouslythenewproposalafterathoroughdiscussionlastingseveralhours.A.rejectedB.endorsedC.postponedD.ignored40、Whatstrategydoestheauthorrecommendforimprovingcross-culturalcommunicationinmultinationalorganizations?A.Enforcingasinglecorporatelanguageglobally.B.Eliminatingallculturaldifferenceswithintheworkplace.C.Promotingculturalawarenesstrainingandinclusivedialogue.D.Assigningmanagementrolesexclusivelytonativespeakers.41、Theauthor'suseofironyintheopeningparagraphservesto.A.confusethereaderaboutthemainargumentB.entertainthereaderwithhumorousanecdotesC.highlightthegapbetweenidealandrealityD.provideadetailedfactualaccountofevents42、Notuntiltheearly21stcenturysignificantprogressinthefieldofgeneeditingtechnology.A.wasthereB.therewasC.hastherebeenD.havetherebeen43、Whichstatementabouttheexperimentresultsistrue?A.GroupAperformedsignificantlybetterthanGroupB.Therewasnodifferencebetweenthetwogroups.C.GroupBoutperformedGroupAbyasmallmargin.D.Theresultswereinconclusiveduetoequipmentfailure.44、Whatdoesthewomanmeanwhenshesays"Icouldn'tagreemore"intheconversation?A.Shedisagreeswiththemancompletely.B.Sheisunsureaboutheropinion.C.Shecompletelyagreeswiththeman.D.Shewantstochangethesubject.45、Theword"ubiquitous"isclosestinmeaningto.A.rareanduncommonB.existingeverywhereC.difficulttounderstandD.expensivetopurchase46、Choosethecorrectsentence:A.Thecommitteehavedecidedtopostponethemeeting.B.Thecommitteehasdecidedtopostponethemeeting.C.Thecommitteehasdecidedtopostponethemeetings.D.Thecommitteehavedecidedtopostponedthemeeting.47、Whatisthemainideaofthepassageaboutclimatechange?A.Climatechangehasnosignificantimpactonagriculture.B.Risingtemperaturesthreatenglobalfoodsecurity.C.Scientistsdisagreeonthecausesofclimatechange.D.Industrialrevolutionsolvedenvironmentalproblems.48、Whichofthefollowingisacompoundsentence?A.Shestudiedhardbecauseshewantedtopass.B.Heranquickly,buthemissedthebus.C.Thebookonthetablebelongstome.D.Runningintheparkisgoodexercise.49、Theprofessor'slecturewassothatmanystudentsfellasleep.A.captivatingB.mundaneC.exhilaratingD.inspiring50、"Neithertheteachernorthestudentsawareofthechange."A.wasB.wereC.isD.hasbeen51、Whatcanbeinferredaboutthespeaker'sattitudetowardtechnology?A.Heiscompletelyopposedtotechnologicaladvancement.B.Hebelievestechnologybringsbothbenefitsandchallenges.C.Hethinkstechnologysolvesallmodernproblems.D.Heisindifferenttotechnologicalchanges.52、TheauthorusestheexampleofancientRometoillustratethat.A.empiresalwayscollapseduetoexternalinvasionB.internalcorruptioncanleadtothefallofgreatpowersC.RomewasthemostpowerfulcivilizationeverD.ancienthistoryhasnorelevancetomodernsociety53、Whichwordbestcompletesthesentence:"Thescientistmadearemarkabletothefieldofmedicine"?A.contributionB.attractionC.operationD.collection54、Whatisthefunctionofthesecondparagraphinthepassage?A.TointroduceanewtopiccompletelyunrelatedtothefirstB.ToprovidesupportingevidenceforthemainargumentC.TocontradicttheinformationpresentedearlierD.Tosummarizetheentirepassage55、Theword"proliferate"ismostnearlyoppositeinmeaningto.A.multiplyB.decreaseC.expandD.develop56、Whatdoesthemanimplywhenhesays"It'snotmycupoftea"?A.Heneedstodrinkteafirst.B.Heenjoystheactivityverymuch.C.Heisnotinterestedinit.D.Hewantstobuyateaset.57、Accordingtothepassage,whatistheprimarycauseofoceanacidification?A.OverfishingincoastalareasB.IncreasedcarbondioxideabsorptionbyseawaterC.RisingseatemperaturesfromglobalwarmingD.Pollutionfromindustrialwastedischarge58、Choosethesentencewiththecorrectuseofpunctuation:A.Theresultswereclear:thehypothesishadbeenconfirmed.B.Theresultswereclear;thehypothesishadbeenconfirmed.59、Whatisthewriter'spurposeinwritingthisarticle?A.ToentertainreaderswithhumorousstoriesB.TopersuadereaderstoadoptaspecificviewpointC.ToinformreadersaboutrecentscientificdiscoveriesD.Tonarrateapersonaltravelexperience60、Thephrase"cutting-edge"isclosestinmeaningto.A.traditionalandoutdatedB.attheforefrontofdevelopmentC.expensiveandimpracticalD.simpleandeasytouse61、Whatconclusioncanbedrawnfromthedatapresentedinthechart?A.Thereisnocorrelationbetweenthevariablesshown.B.VariableAincreasesasvariableBdecreases.C.Bothvariablesshowaconsistentupwardtrend.D.Thedataisinsufficienttodrawanyconclusion.62、Whichofthefollowingbestsummarizesthekeypointoftheargument?A.Educationshouldfocussolelyonvocationaltraining.B.Abalancedapproachtoeducationyieldsthebestoutcomes.C.Academicsubjectsaremoreimportantthanarts.D.Technologyhasreplacedtheneedforteachers.63、Theterm"paradigmshift"refersto.A.agradualimprovementinexistingmethodsB.afundamentalchangeinbasicconceptsandassumptionsC.aminoradjustmenttodailyroutinesD.therepetitionofhistoricalpatterns64、Thenewpolicyaimstoaddressthegrowing_ofincomeinequalityinurbanareas.A.concernB.concerninglyC.concernedD.concerning65、Itisessentialthateverystudent_theacademicintegritypolicybeforeenrollingincourses.A.understandsB.understandC.understoodD.willunderstand66、Theresearchpaper,_severalyearsoffieldwork,providesvaluableinsightsintowildlifeconservation.A.basesonB.basedonC.isbasedonD.basingon67、Bythetimetheprojectiscompletednextyear,theteam_foroverthreeyears.A.willworkB.willhavebeenworkingC.hasworkedD.worked68、Theprofessor'slecturewasso_thatmanystudentsfounditdifficulttofollowhisarguments.A.articulateB.obscureC.lucidD.straightforward69、Notuntilthedatawasfullyanalyzed_thetruesignificanceoftheexperiment.A.didtheyrealizeB.theyrealizedC.theyhadrealizedD.hadtheyrealized70、Thecommittee_adecisionaboutthebudgetallocationafteralengthydiscussion.A.reachedB.arrivedC.madeD.got71、Thegovernmenthasimplementedstrictmeasuresto_thespreadofmisinformationonline.A.curbB.accelerateC.encourage72、She_theopportunitytostudyabroad,butshedecidedtostayandhelpherfamily.A.couldhaveseizedB.shouldseizeC.mustseizeD.wouldseize73、Thenewsoftwareupdateisdesignedto_userexperienceandimprovesystemefficiency.A.enhanceB.diminishC.deteriorateD.compromise74、_theheavyrain,theoutdoorceremonyproceededasscheduledwithoutanydelays.A.DespiteB.AlthoughC.HoweverD.Whereas75、Thescientist'sgroundbreakingtheory_widespreaddebateamongscholarsinrelatedfields.A.sparkedB.extinguishedC.silencedD.quieted76、Itiswidely_thatregularexercisecontributessignificantlytobothphysicalandmentalhealth.A.acknowledgedB.denyingC.rejectedD.disputed77、The_oftheancientmanuscripthasprovidedhistorianswithnewinformationaboutthedynasty.A.discoveryB.discoveringC.discoverD.discovered78、Theresearcherneedstobemore_whendrawingconclusionsfromthelimiteddataavailable.A.cautiousB.carelesslyC.carelessD.cautiously79、Thecompany'sfinancialreportrevealedthatprofitshad_by15percentcomparedtothepreviousquarter.A.surgedB.plummetedC.remainedD.stagnated80、_thefactthathelackedformaltraining,heprovedtobeanexcellentmusician.A.InspiteofB.DespiteofC.AlthoughD.However81、Theuniversityhasintroducedanewcurriculumthat_studentstodevelopcriticalthinkingskills.A.empowersB.enablesC.allowsD.permits82、The_betweeneconomicgrowthandenvironmentalprotectionhasbeenatopicofintensediscussion.A.trade-offB.advantageC.benefitD.profit83、Thedocumentaryfilm_thedevastatingeffectsofclimatechangeoncoastalcommunitiesaroundtheworld.A.highlightsB.overlooksC.ignoresD.neglects84、Whatdoesthewomanimplyabouttheprofessor'slecture?A.Itwastooshort.B.Itwashardtofollow.C.Itwasveryclear.D.Itwasboring.85、Whydidthemancancelhistravelplan?A.Hisflightwasdelayed.B.Helosthispassport.C.Hisbudgetwasreduced.D.Hiscolleaguefellill.86、Whatwillthespeakersprobablydonext?A.Gotoarestaurant.B.Attendameeting.C.Finishthereport.D.Takeabreak.87、Whatistheproblemwiththenewsoftware?A.Itistooexpensive.B.Itcrashesfrequently.C.Itlacksusermanual.D.Itrunstooslowly.88、Howdoesthewomanfeelabouttheexamresults?A.Disappointed.B.Overjoyed.C.Indifferent.D.Anxious.89、Whatdowelearnaboutthelibrary?A.Itclosesearlyonweekends.B.Ithasextendeditshours.C.Itisunderrenovation.D.Itchargesmembershipfees.90、Whatcanbeinferredfromtheconversation?A.Themanprefersonlinecourses.B.Thewomanistakingasummercourse.C.Bothspeakersarebusythissummer.D.Themanwantstoworkparttime.91、Whatisthemaintopicofthetalk?A.Environmentalprotectionpolicies.B.Newenergyvehiclesdevelopment.C.Climatechangesolutions.D.Renewableenergysources.92、Accordingtothespeaker,whatisamajorchallengeforrenewableenergy?A.Highproductioncost.B.Limitednaturalresources.C.Publicopposition.D.Governmentregulation.93、Whatdoesthespeakersuggestasasolutiontotheenergycrisis?A.Stoppingfossilfueluseentirely.B.Investinginresearchandtechnology.C.Increasingoilimports.D.Reducingenergyconsumptioninindustries.94、Theword"skeptical"inthepassageisclosestinmeaningto.A.ConfidentB.DoubtfulC.EnthusiasticD.Uncertain95、Whichofthefollowingbestsummarizesthepassage?A.Remoteworkhasnoimpactonproductivity.B.Companiesshouldeliminateallofficespaces.C.Hybridworkmodelsshowpromisingresults.D.Employeespreferworkingfromhomefulltime.96、Accordingtothepassage,whatbenefitdoeshybridworkprovide?A.Itguaranteeshighersalaries.B.Itimprovesemployeesatisfaction.C.Iteliminatescommutingcosts.D.Itreplacesallface-to-facemeetings.97、Theauthor'sattitudetowardremoteworkcanbedescribedas.A.StronglyopposedB.ObjectivelypositiveC.CompletelyindifferentD.Heavilycritical98、Whatdoesthepassagemainlydiscuss?A.Thehistoryofartificialintelligence.B.TheethicalconcernsofAIdevelopment.C.TheeconomicimpactofAIonjobs.D.ThetechnologicaladvantagesofA99、Accordingtothepassage,whatshouldbedonetoaddressAIethicsissues?A.BanAIdevelopmentcompletely.B.Establishclearregulatoryframeworks.C.Letcompaniesself-regulate.D.ReduceAIresearchfunding.100、Whatcanbelearnedabouttheancientcivilizationfromthepassage?A.Itcollapsedduetonaturaldisasters.B.Ithadadvancedagriculturaltechniques.C.Itwasdiscoveredonlyrecently.D.Ithadnowrittenrecords.

参考答案及解析1.【参考答案】C【解析】本题考查短语辨析。"upintheair"表示"不确定的，悬而未决的"，符合句意"研究小组已经为这个项目工作了三年，但结果仍然不确定"。A项"intheair"表示"在空中；即将发生"；B项"inprogress"表示"在进行中"；D项"inthemaking"表示"在形成中"。根据句意，强调结果不确定，应选C。2.【参考答案】B【解析】本题考查时态用法。句中"sinceshewasfiveyearsold"表示从过去某一时间开始一直持续到现在的动作，且强调动作的持续性，应用现在完成进行时"hasbeenlearning"。A项现在完成时强调动作已完成；C项一般过去时只表示过去的动作；D项一般现在时表示习惯性动作。故选B。3.【参考答案】A【解析】本题考查固定搭配。"haveanimpacton"是固定搭配，意为"对……产生影响"。B项"makeanimpacton"也可表示"产生影响"，但通常不与"significant"连用；C项"take"和D项"give"均不与"impact"搭配。根据句意"新政策预计将对当地经济产生重大影响"，应选A。4.【参考答案】B【解析】本题考查虚拟语气。在"Itisessentialthat..."句型中，从句谓语动词需用虚拟语气，即"(should)+动词原形"。因此"meet"为正确答案，省略should后直接用动词原形。A项为一般现在时第三人称单数形式；C项为将来时；D项为过去时，均不符合虚拟语气的用法要求。故选B。5.【参考答案】A【解析】本题考查动词短语辨析。"calloff"意为"取消"，符合句意"会议因资金短缺突然被取消"。B项"callfor"意为"需要；号召"；C项"callin"意为"召集；叫……进来"；D项"callon"意为"拜访；号召"。根据句意和搭配，应选A。6.【参考答案】B【解析】本题考查形容词辨析。根据句意"这位科学家做出了一个改变了生物学领域的突破性发现"，"breakthrough"意为"突破"，符合语境。A项"accidental"意为"偶然的"；C项"ordinary"意为"普通的"；D项"minor"意为"次要的"，均不符合句意。breakthroughdiscovery是常见搭配，表示"突破性发现"。故选B。7.【参考答案】A【解析】本题考查介词短语辨析。"accordingto"意为"根据"，符合句意"根据天气预报，明天要下雨"。B项"becauseof"意为"因为"；C项"despite"意为"尽管"；D项"exceptfor"意为"除了……之外"。只有"accordingto"能引出信息来源，与"theweatherforecast"搭配恰当。故选A。8.【参考答案】A【解析】本题考查名词辨析。"alackof"意为"缺乏"，符合句意"公司在CEO突然辞职后面临严重的领导层缺乏"。B项"short"为形容词，不能直接与"of"搭配表示"缺乏"；C项"few"修饰可数名词复数；D项"empty"意为"空的"。只有"alackof"为正确搭配，表示"缺乏……"。故选A。9.【参考答案】A【解析】本题考查动词短语辨析。"handin"意为"提交"，符合句意"老师要求学生周五前提交论文"。B项"handout"意为"分发"；C项"handover"意为"交出；移交"；D项"handdown"意为"传下来；遗留"。根据语境，学生向老师提交论文，应选A。10.【参考答案】A【解析】本题考查连词用法。句意为"虽然他很老，但他仍然每天努力工作"，前后分句之间为让步关系，应使用"although"引导让步状语从句。B项"because"表原因；C项"if"表条件；D项"unless"表"除非"。只有"although"符合句意逻辑，故选A。11.【参考答案】A【解析】本题考查名词辨析。"appeal"意为"吸引力"，符合句意"这部小说的吸引力在于其复杂的人物和迷人的情节"。B项"purpose"意为"目的"；C项"meaning"意为"意义"；D项"idea"意为"想法"。根据后文"complexcharactersandfascinatingplot"可知，这是在描述小说吸引人的特点，故选A。12.【参考答案】A【解析】本题考查形容词辨析。"boring"修饰事物，表示"令人无聊的"；"bored"修饰人，表示"感到无聊的"。句中修饰"lecture"（讲座），应用"boring"。句意为"教授的讲座太无聊了，许多学生都睡着了"。C项为动词或名词；D项为名词"无聊"。故选A。13.【参考答案】B【解析】本题考查时态。"bythetime"引导的时间状语从句若用一般过去时，主句应用过去完成时，表示在某一过去时间点之前已经完成的动作。句意为"当我们到达车站时，火车已经开走了"。A项现在完成时；C项have与主语thetrain不一致；D项过去进行时不符合语境。故选B。14.【参考答案】A【解析】本题考查动词辨析。"reduce"意为"减少"，符合句意"政府已采取措施减少主要城市的空气污染"。B项"increase"意为"增加"；C项"produce"意为"生产"；D项"create"意为"创造"。根据常识，政府采取措施应是减少污染，而非增加或创造污染。故选A。15.【参考答案】A【解析】本题考查非谓语动词。"beworthdoing"是固定搭配，意为"值得做某事"，主动形式表示被动含义。句意为"这本书值得一读，我已经读了两遍"。B项不定式不符合该搭配；C项为动词原形；D项被动形式多余。故选A。16.【参考答案】B【解析】本题考查副词比较级。句中"than"提示需用比较级，修饰动词"speaks"应用副词"fluently"的比较级"morefluently"。A项"fluent"是形容词，不能修饰动词；C项为原级；D项为最高级。句意为"她比她哥哥英语说得更流利"。故选B。17.【参考答案】A【解析】本题考查名词辨析。"thegapbetween...and..."意为"……与……之间的差距"，符合句意"富国与穷国之间的差距已成为全球关注的问题"。B项"bridge"意为"桥梁"；C项"connection"意为"联系"；D项"relation"意为"关系"。根据语境，描述贫富差距应用"gap"。故选A。18.【参考答案】B【解析】本题考查虚拟语气。"wish"后的宾语从句需用虚拟语气，表示与事实相反的愿望时，动词用过去式。对现在的虚拟，be动词统一用"were"。句意为"我希望我更高一些，但对此我无能为力"。A项为陈述语气；C项将来时；D项过去完成时均不符合wish虚拟语气的用法。故选B。19.【参考答案】A【解析】本题考查词性辨析。定冠词"The"后面应接名词，"construction"为名词，意为"建设；建造"，符合句意"桥的建设已于上个月完成"。B项"construct"为动词；C项"constructive"为形容词；D项"constructed"为过去分词或形容词。只有A项名词形式符合语法要求。故选A。20.【参考答案】B【解析】本题考查动词辨析及语境理解。句意为"他试图提前完成工作，但失败了"。"attempttodosth."意为"试图做某事"，符合语境。A项"managedtodo"表示"成功做到"，与后半句矛盾；C项"succeededindoing"也表示成功，不符合；D项"triedtodo"虽可表示尝试，但"attempt"更正式，且与"failed"形成更清晰的对比。故选B。21.【参考答案】A【解析】本题考查词性辨析。decisive是形容词，意为"果断的、决定性的"，修饰名词action。decided是形容词但较少修饰action；decisively是副词不能修饰名词。句意为政府应采取果断行动应对日益严重的财富不平等。decisiveaction是常见搭配。22.【参考答案】C【解析】文章主要探讨了人工智能伦理问题，强调在推进AI技术创新的同时，需要建立平衡的监管框架，确保技术发展符合社会道德标准。A项过于极端，B项否定伦理准则的作用，D项否定政府监管角色，均不符合文章主旨。C项准确概括了文章关于平衡监管与创新的核心观点。23.【参考答案】C【解析】"ubiquitous"意为"无处不在的、普遍的"，词源来自拉丁语ubique（到处）。句中描述智能手机在现代社会中的普及程度，widespread（广泛的）与其含义最接近。rare意为稀有的，expensive意为昂贵的，complicated意为复杂的，均不符合语境。考生可通过上下文线索判断该词表示普遍存在的含义。24.【参考答案】B【解析】该句使用了虚拟语气"Iwish+过去完成时"结构，表达对过去的遗憾和后悔。说话者怀念过去如果努力学习会更好，暗示他当时并未努力学习。A项与句意相反；C项无法从句子推断，说话者可能已毕业；D项与句子表达的珍惜教育的态度相悖。B项正确表达了说话者的遗憾之情。25.【参考答案】B【解析】"Each"作为主语时，谓语动词用单数形式，因此排除A和C。B和D的区别在于代词的使用。传统语法要求单数代词与each搭配，用"hisorher"更规范。D项虽然现代英语中用"their"指代单数主体越来越普遍，但在标准考试中B项仍是更规范的答案。此题考查主谓一致和代词一致性。26.【参考答案】B【解析】文章明确指出热带地区森林砍伐的主要原因是农业扩张和伐木活动。虽然自然灾害、城市建设和气候变化也与森林减少有关，但文章强调人类的经济活动——特别是为获取耕地和木材而进行的砍伐——是导致热带雨林消失的首要因素。A、C、D三项虽有一定关联，但并非文章认定的主要原因。27.【参考答案】B【解析】空格前的"so...that"结构表明前后存在因果关系，后半句说"即使是高级学生也觉得难以理解"，说明讲座非常深奥。sophisticated意为"深奥的、复杂的"，符合语境。straightforward意为直截了当的，simplistic意为过于简单的，elementary意为基础的，三项均与句意相反。sophisticated在此指理论复杂高深。28.【参考答案】C【解析】作者在文章中探讨了经济增长与环境保护之间的张力，并提出可持续发展理念作为解决方案。可持续的发展模式能够在追求经济进步的同时兼顾生态保护，实现两者协调统一。A项和D项观点过于片面，B项否认两者关联性不符合实际，只有C项准确传达了作者关于两者可以和谐共存的核心观点。29.【参考答案】C【解析】"ephemeral"意为"短暂的、瞬息的"，源自希腊语ephemeros（只持续一天的）。其反义词应为表示"持久的、永久的"之词。transient（短暂的）、fleeting（转瞬即逝的）、momentary（刹那的）均与ephemeral近义，只有permanent（永久的）构成反义关系。考生在备考时应注意积累常见词汇的同反义词对。30.【参考答案】B【解析】主语"data"在此处作为集合名词使用，被视为单数概念，因此谓语动词需用第三人称单数形式。A项为复数动词形式，排除；C项为非谓语动词，不能单独作谓语，排除；D项虽然语法上可行，但"overthepastdecade"与现在完成时搭配时语感不如一般现在时自然，且图表呈现的是当前数据所显示的趋势，B项最为恰当。31.【参考答案】B【解析】作者在文中多次使用"worryingtrendalarmingstatisticsseriousconsequences"等措辞，并对社交媒体对青少年心理健康的负面影响表达了明显的担忧。文章引用多项研究结果来佐证其关切，整体语调偏向警示和忧虑。A项"漠不关心"、C项"幽默轻松"、D项"自信轻视"均与文章实际语气不符，B项准确概括了作者的担忧态度。32.【参考答案】A【解析】本句考查将来完成时与时间状语从句的搭配。在bythetime引导的时间状语从句中，即使表示将来的动作，也使用一般现在时表示将来。主句使用将来完成时"willhavearrived"，从句用一般现在时"starts"。B项重复使用将来时错误；C项过去时与主句时态不协调；D项现在完成时在bythetime从句中不如一般现在时标准。33.【参考答案】B【解析】后半句"suggestingthattheoriginalassumptionswerefundamentallyflawed"表明研究者的新发现与原理论相悖。contradict意为"与……矛盾"，符合语境。corroborate、confirm、validate均有"证实、确认"之意，与原句逻辑相反。此题考查词汇辨析能力，考生需关注上下文逻辑关系来判断正确选项。34.【参考答案】A【解析】"Despite"引导的让步状语从句表明前后存在转折关系。前半句说"有压倒性证据支持气候行动"，后半句应表达"一些政策制定者仍然拒绝采取的行动"之意。adamant意为"坚决的、固执的"，符合语境。compliant（顺从的）、cooperative（合作的）、accommodating（迁就的）均为正面态度，与despite所引导的转折逻辑相悖。35.【参考答案】C【解析】文章比较了在线教育和传统课堂学习的优劣，指出在线教育在灵活性和可及性方面具有优势，而传统课堂在互动性和结构化学习方面效果更好。文章并未偏袒任何一方，而是强调应根据具体学习环境和需求选择合适的教育模式。A项过于绝对，B项和D项完全否定某一模式，均不符合文章客观比较的结论。36.【参考答案】C【解析】"accountfor"在此意为"解释、说明"，是学术英语中的常用表达。句意是科学家解释该现象无法仅凭现有理论框架得到解释。ignored（忽视）、overlooked（忽略）、disregarded（无视）均不含"解释说明"之义，只有accountedfor符合语境。此题考查动词短语在具体语境中的准确理解。37.【参考答案】B【解析】虚拟语气中，与现在事实相反的假设条件句使用"If+过去式"结构，be动词统一用were。B项"IfIwererich"正确表达了对现在情况的虚拟假设。A项用was不符合标准虚拟语气规范；C项混合了真实条件和虚拟结果，时态不一致；D项用be动词原形不符合条件句语法结构。B项为标准虚拟语气用法。38.【参考答案】B【解析】"cognitivedissonance"（认知失调）是心理学概念，由心理学家费斯廷格提出，指个体同时持有两种或多种相互矛盾的认知（信念、态度、价值观）时所产生的心理不适感。A项描述的是解决问题带来的愉悦；C项描述的是记忆力；D项描述的是确认偏误。只有B项准确定义了认知失调的核心含义。39.【参考答案】B【解析】"unanimously"意为"一致地、无异议地"，是一个关键提示词。经过长时间充分讨论后，委员会做出了一致同意的决定。endorsed（认可、支持）与unanimously搭配最为合理。rejected（拒绝）虽然也可以一致通过，但通常不会因"thoroughdiscussion"后得出一致拒绝的积极语境；postponed（推迟）和ignored（忽视）与unanimously的语义搭配不够自然。40.【参考答案】C【解析】作者在文章中提出，跨国公司改善跨文化沟通的关键策略是推广文化意识培训和促进包容性对话。这有助于不同文化背景的员工相互理解和尊重。A项强制推行单一语言忽视了文化多样性价值；B项消除文化差异既不现实也不可取；D项仅指派母语者担任管理角色存在歧视性问题。C项体现了多元包容的沟通理念。41.【参考答案】C【解析】反讽（irony）作为一种修辞手法，其核心功能是通过表面意义与实际意义之间的反差来传达深层含义。在开篇使用反讽，通常是为了凸显理想与现实之间的巨大落差，引发读者思考。A项说制造困惑并非反讽的目的；B项娱乐读者不是反讽的主要功能；D项提供详细事实记录与反讽的性质不符。C项准确指出了反讽在文中的修辞作用。42.【参考答案】A【解析】"Notuntil"置于句首时，句子需要部分倒装，即将助动词或be动词提前到主语之前。因此排除B项。时间状语"theearly21stcentury"指向过去特定时间点，应使用一般过去时，排除C和D项的现在完成时。A项"wasthere"符合倒装结构和时态要求，为正确答案。此题综合考查倒装句和时态用法。43.【参考答案】B【解析】实验数据显示两组结果无显著差异，故B项正确。44.【参考答案】C【解析】"Icouldn'tagreemore"是英语中常见的表达强烈同意的句型，字面意思是"我不能再同意更多了"，实际含义是"完全同意"。该短语常用于对话理解题中，考查学生对习语和交际用语的理解能力。学生需掌握此类高频表达的真实语用功能。45.【参考答案】B【解析】"ubiquitous"意为"无处不在的、普遍存在的"，源自古希腊语ubi(哪里)和que(某处)。该词常用于学术文章和高级英语阅读中，学生需通过上下文推断词义或积累词汇知识。常见搭配有ubiquitouspresence(无处不在的存在)。46.【参考答案】B【解析】"committee"作为集合名词，当视为整体时用单数动词has。选项A使用have不妥当；选项C虽然语法正确但改变原意；选项D时态错误。主谓一致是六级语法考点之一。47.【参考答案】B【解析】六级阅读理解常考查段落主旨。题干涉及气候变化与粮食安全的关联，选项B准确概括了全球变暖对农业的负面影响，符合科学共识。答题时需抓住文章核心观点，排除细节项和无关项。48.【参考答案】B【解析】复合句由两个独立分句通过并列连词连接构成。选项B使用but连接两个独立分句，符合复合句定义。选项A为含原因状语从句的复合句；选项C和D均为简单句。49.【参考答案】B【解析】根据后文"studentsfellasleep"可知讲座非常无聊。"mundane"意为"世俗的、平凡的、无聊的"。captivating(迷人的)、exhilarating(令人兴奋的)、inspiring(鼓舞人心的)均与语境矛盾。50.【参考答案】B【解析】"neither...nor..."连接主语时遵循就近原则，谓语动词与最近的主语一致。"students"为复数，故用were。这是英语语法中常见的主谓一致考点。51.【参考答案】B【解析】推理题需结合上下文判断说话者态度。选项B体现辩证观点，符合学术讨论中常见的中立立场。其他选项过于极端或片面，不符合合理推断的标准。52.【参考答案】B【解析】作者引用古罗马例子通常是为了说明内部腐败导致帝国衰落的道理。选项B准确反映了历史类比的目的。答题时需理解例证服务于论点的写作手法。53.【参考答案】A【解析】"makeacontributionto"是固定搭配，意为"对……做出贡献"。其他选项与动词make搭配不当或语义不符。词汇搭配是六级考试的重点内容。54.【参考答案】B【解析】阅读理解中段落功能题需分析段落与全文的关系。第二段通常为第一段论点提供论据或进一步阐述，选项B最符合常见篇章结构。答题时应把握文章逻辑脉络。55.【参考答案】B【解析】"proliferate"意为"激增、扩散"，反义词应为"减少、下降"。decrease符合此义。multiply、expand、develop均为近义词方向。词汇反义词题需准确理解目标词汇含义。56.【参考答案】C【解析】"It'snotmycupoftea"是英语习语，意为"不是我的菜、我不感兴趣"。该表达常用于非正式对话，考查学生对地道英语的理解。选项C准确传达了习语的真实含义。57.【参考答案】B【解析】海洋酸化主要由于海水吸收大气中过量二氧化碳，形成碳酸导致pH值下降。这是环境科学领域的基础知识。答题时需区分不同海洋问题的成因。58.【参考答案】A【解析】冒号用于引出解释或说明，选项A正确使用冒号连接前后关系。选项B分号使用不当；选项C逗号粘连错误；选项D缺少必要标点。标点符号使用是语言规范的重要内容。59.【参考答案】B【解析】六级阅读常考写作目的题。persuasivewriting旨在说服读者接受某观点，是最常见的学术文章类型。答题时需分析文章语气、论据和结论来判定作者意图。60.【参考答案】B【解析】"cutting-edge"意为"最先进的、尖端的"，常用于描述科技或研究前沿。attheforefrontofdevelopment准确传达此义。积累此类形容词有助于提高阅读速度。61.【参考答案】C【解析】图表题需根据数据趋势得出结论。选项C描述"两个变量均呈持续上升趋势"，符合典型数据可视化题目的答案特征。答题时应仔细观察坐标轴和曲线走向。62.【参考答案】B【解析】议论文摘要题需把握核心论点。选项B主张教育应平衡发展，体现全面观点，符合主流教育理念。其他选项过于偏颇或绝对化，难以成为合理结论。63.【参考答案】B【解析】"paradigmshift"由哲学家库恩提出，指"范式转换"，即基本观念和研究框架的根本性变革。该概念在学术英语中频繁出现，学生需掌握其准确定义和用法。64.【参考答案】A【解析】本题考查名词辨析。句意为"新政策旨在解决城市地区日益增长的收入不平等担忧"。空格前有定冠词the和形容词growing，此处需要填入名词形式。concern作名词时意为"担忧、关心"，符合句意。B项为副词，C项为形容词，D项为介词或动名词，均不符合语法要求。故选A。65.【参考答案】B【解析】本题考查虚拟语气。在"Itisessentialthat..."句型中，从句谓语动词需用虚拟语气，即"(should)+动词原形"结构，should可以省略。句意为"每位学生在选课之前都必须理解学术诚信政策"。故选B。66.【参考答案】B【解析】本题考查非谓语动词作定语。句意为"这篇研究论文基于数年的实地考察，为野生动物保护提供了有价值的见解"。paper与base之间为被动关系，且此处为非限定性修饰成分，应使用过去分词basedon。如果选C则构成完整句子，缺少连词。故选B。67.【参考答案】B【解析】本题考查将来完成进行时。时间状语"Bythetime..."引导的时间状语从句用一般现在时表示将来，主句需用将来完成时或将来完成进行时。句意为"到明年项目完工时，团队将已经工作三年多"。强调从过去持续到现在并将持续到将来的动作，用将来完成进行时。故选B。68.【参考答案】B【解析】本题考查形容词词义辨析。句意为"教授的讲座如此晦涩，许多学生