2025年春季英語四六級詞匯辨析與運用專項訓練試卷考試時間：______分鐘總分：______分姓名：______第一部分詞匯選擇填空directions:Thereare15blanksinthefollowingpassage.Foreachblank,therearefourchoicesmarkedA),B),C)andD).YoushouldchoosetheONEthatbestfitsintothepassage.ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Thehumanbrainisincrediblycomplex,butresearchershavemaderemarkablestridesinunderstandingitsfunctions.Recentstudiessuggestthat1playsacrucialrolenotonlyinmemoryformationbutalsointheabilitytolearnnewskills.Thisdiscovery2ourpreviousunderstandingofcognitiveprocesses.Neuroplasticity,thebrain'scapacitytochangeandadaptbyformingnewneuralconnectionsthroughoutlife,isnowseenasafundamentalaspectofhumandevelopment.Oneofthemostfascinatingareasofresearchishowthebrainprocessesemotions.Whenweexperiencestrongfeelings,certainregionsbecomehighlyactive.Forinstance,theamygdala,oftenreferredtoasthebrain'sfearcenter,3whenweperceiveathreat.However,theprefrontalcortex,responsiblefordecision-makingandsocialbehavior,can4theseinitialresponses,allowingformorerationalreactions.Thisinterplaybetweendifferentbrainareas5ourabilitytonavigatecomplexsocialsituationseffectively.Lifelonglearningisanotherkeyfactorinmaintainingbrainhealth.Engaginginactivitiesthatchallengethemind,suchaslearningamusicalinstrumentoranewlanguage,can6theformationofnewneuronsandstrengthenexistingconnections.Thisnotonlyenhancescognitiveabilitiesbutalsoseemstodelaytheonsetofage-relatedcognitivedecline.Therefore,keepingthebrainactiveandexposedtonovelexperiencesis7foroverallmentalwell-being.Theimpactofstressonthebraincannotbeoverstated.Chronicstresscanleadtotheshrinkageofthehippocampus,aregionvitalformemoryandlearning.Ontheotherhand,practicessuchasmeditationandmindfulnesshavebeenshownto8stresslevelsandpromotebrainhealth.Byreducingcortisol,thestresshormone,thesetechniqueshelpprotectthebrainfromthedamagingeffectsoflong-termstress.Ultimately,understandingthebrain'scomplexityisanongoingprocess.Eachnewstudyrevealsmoreaboutthisremarkableorganandhowitfunctions.Asresearchcontinues,wecan9betterstrategiestosupportbrainhealthandenhancecognitiveperformance.Thisknowledgenotonlybenefitsindividualsbutalsohassignificantimplicationsforeducation,healthcare,andthedevelopmentofnewtreatmentsforneurologicaldisorders.1.A)motivationB)communicationC)environmentD)neuroplasticity2.A)challengesB)expandsC)contradictsD)confirms3.A)activatesB)suppressesC)coordinatesD)diminishes4.A)moderateB)ignoreC)enhanceD)trigger5.A)enablesB)restrictsC)hindersD)contradicts6.A)stimulateB)weakenC)reduceD)neglect7.A)criticalB)optionalC)irrelevantD)superficial8.A)decreaseB)increaseC)maintainD)fluctuate9.A)developB)discoverC)applyD)ignore第二部分詞語搭配判斷directions:Beloware10wordpairs.Eachpairconsistsofaverbandapreposition(oraverbandanoun).Foreachpair,youaretodecideifthecombinationisacorrectcollocationaccordingtocommonusage.MarkY(forYes)ifthepairisacorrectcollocationandN(forNo)ifitisnot.1.contributeto2.lookfor3.dependon4.payattentionto5.basedon6.agreewith7.interestedin8.responsiblefor9.familiarwith10.preventfrom第三部分詞匯在句子或語篇中的應用填空directions:FillineachblankwithONEsuitablewordfromthewordbankbelow.Makesurethewordyoufillinfitsthecontext.Donotwritethewordbankonyouranswersheet.Therapidadvancementofartificialintelligence(AI)has11thewayweliveandwork.Fromvirtualassistantsonoursmartphonestocomplexalgorithmspoweringautonomousvehicles,AIisnolongera12conceptbutanintegralpartofmodernsociety.However,thistechnologicalrevolutionalso13newethicalchallengesthatneedcarefulconsideration.Oneofthemostpressingconcernsisthepotentiallossofjobs.AsAIsystemsbecomemorecapable,theymay14taskstraditionallyperformedbyhumans.Whilethiscouldincreaseefficiencyandproductivity,italsoraisestheissueofunemploymentandtheneedforworkforce15.Governmentsandbusinessesmustcollaboratetoensureasmoothtransitionforworkers,providingtrainingandopportunitiesforreskilling.AnothersignificantchallengeisthebiasthatcanbeembeddedinAIsystems.Ifthedatausedtotrainthesealgorithmsis16,theAIwillperpetuateandevenamplifyexistinginequalities.ItiscrucialtodevelopAIthatisfair,transparent,andaccountable.Thisrequiresdiverseandrepresentativedatasets,aswellasrobustmechanismsto17biasesandensureequitableoutcomes.Privacyisyetanotherareaofconcern.AIsystemsoftenrequirevastamountsofpersonaldatatofunctioneffectively.Whilethisdatacanbeusedtoimproveservicesandcreatepersonalizedexperiences,italsoposesriskstoindividualprivacy.Strikingtherightbalancebetweenleveragingdataandprotectingprivacyisessential.Strongregulationsandethicalguidelinesmustbeestablishedto18theuseofpersonaldataandsafeguardindividualrights.Inconclusion,whileAIoffersimmensepotentialtobenefithumanity,itisimperativetoaddresstheethicalchallengesitpresents.Byfosteringresponsibleinnovation,promotingtransparency,andprioritizinghumanwell-being,wecan19thebenefitsofAIwhilemitigatingitsrisks.ThefutureofAIdependsnotonlyontechnologicalprogressbutalsoonourcollectiveabilitytonavigateitsethicallandscape.11.A)revolutionizedB)revolutionB)conceptC)revolutionizedD)phenomenon12.A)theoreticalB)practicalC)hypotheticalD)experimental13.A)posesB)presentsC)involvesD)indicates14.A)takeoverB)takeonC)takeforD)takein15.A)developmentB)adjustmentC)evolutionD)transition16.A)biasedB)objectiveC)neutralD)balanced17.A)identifyB)eliminateC)assessD)analyze18.A)regulateB)monitorC)controlD)supervise19.A)harnessB)utilizeC)exploitD)maximize第四部分根據上下文選擇恰當的詞形directions:Completethefollowingsentencesbychoosingthemostappropriateformofthewordgiveninbrackets.ThenwriteyouransweronAnswerSheet1.1.Despitetheheavyrain,themarathonparticipants______determinedtofinishtherace.(determine)2.Herresearchpaperprovidesacomprehensive______oftherecentdevelopmentsinrenewableenergy.(analyze)3.Themanageraskedtheteamtocomeupwitha______solutiontotheongoingproblem.(creative)4.Itiswidelyacknowledgedthatregularphysicalexercisecontributesto______health.(well)5.Thenovelwonseveralawards,includingtheprestigiousBookerPrize,forits______descriptionofrurallife.(vivid)6.Manystudentsfinditchallengingtobalancetheiracademicstudieswithpart-time______.(employ)7.Thegovernmenthasimplementedstrict______tocontrolpollutioninmajorcities.(measure)8.His______effortsinfundraisingwerecrucialtothesuccessofthecharityevent.(energetic)9.Themuseumoffersguidedtoursinseverallanguagesforvisitorswithdifferent______backgrounds.(cultural)10.Thecompanyislookingforsomeonewithextensiveexperienceininternational______.(trade)---試卷答案1.D2.B3.A4.A5.A6.A7.A8.A9.A10.A11.A12.C13.B14.A15.D16.A17.B18.A19.A20.determined21.analysis22.creative23.wellness24.vivid25.employment26.measures27.energetic28.cultural29.trade解析思路1.Dneuroplasticity：根據后文對大腦可塑性的解釋，這里指大腦改變和適應的能力，neuroplasticity意為“神經可塑性”，符合語境。2.Bexpands：句意為這項發(fā)現擴展了我們之前的理解，expands意為“擴展”，符合語境。3.Aactivates：句意為當感知到威脅時，杏仁核會活躍起來，activates意為“激活”，符合語境。4.Amoderate：句意為前額葉皮層可以調節(jié)這些最初的反應，moderate意為“調節(jié)，緩和”，符合語境。5.Aenables：句意為不同腦區(qū)之間的相互作用使我們能夠有效地應對復雜的社會情況，enables意為“使能夠”，符合語境。6.Astimulate：句意為參與挑戰(zhàn)智力的活動，如學習樂器或外語，可以刺激新神經元的形成，stimulate意為“刺激”，符合語境。7.Acritical：句意為保持大腦活躍并接觸新經歷對整體心理健康至關重要，critical意為“關鍵的”，符合語境。8.Adecrease：句意為這些技術已被證明可以降低壓力水平，decrease意為“減少”，符合語境。9.Adevelop：句意為隨著研究的繼續(xù)，我們可以開發(fā)出更好的策略來支持大腦健康并提高認知表現，develop意為“開發(fā)”，符合語境。10.Atheoretical：句意為大腦是極其復雜的，但研究人員在理解其功能方面取得了顯著的進展，theoreticalconcept意為“理論概念”，符合語境。11.Arevolutionized：句意為人工智能的快速發(fā)展徹底改變了我們的生活方式和工作方式，revolutionized意為“徹底改變”，符合語境。12.Chypothetical：句意為人工智能不再是抽象的概念，hypothetical意為“假設的”，符合語境。13.Bpresents：句意為這場技術革命也提出了需要仔細考慮的新道德挑戰(zhàn)，presentschallenges意為“提出挑戰(zhàn)”，符合語境。14.Atakeover：句意為如果人工智能系統(tǒng)變得更強大，它們可能會接管傳統(tǒng)上由人類完成的任務，takeovertasks意為“接管任務”，符合語境。15.Dtransition：句意為政府和企業(yè)必須合作，確保工人順利過渡，transitionforworkers意為“工人的過渡”，符合語境。16.Abiased：句意為如果訓練這些算法的數據是有偏見的，人工智能將會延續(xù)甚至放大現有的不平等，biased意為“有偏見的”，符合語境。17.Beliminate：句意為有必要開發(fā)公平、透明和負責任的人工智能，這需要多樣化和代表性數據集，以及強大的機制來消除偏見，eliminatebiases意為“消除偏見”，符合語境。18.Aregulate：句意為必須建立強有力的法規(guī)和道德準則來規(guī)范個人數據的利用，regulatetheuse意為“規(guī)范…的使用”，符合語境。19.Aharness：句意為在利用人工智能的好處的同時減輕其風險，harnessthebenefits意為“利用…的好處”，符合語境。20.determined