2025年英語(yǔ)六級(jí)考試語(yǔ)法填空專(zhuān)項(xiàng)訓(xùn)練試卷：突破語(yǔ)法填空難題考試時(shí)間：______分鐘總分：______分姓名：______PartV.GrammarCompletionDirections:Thereare10blanksinthefollowingpassage.Foreachblank,therearefourchoicesmarkedA),B),C)andD).YoushouldchoosetheONEthatbestfitsintothepassage.ThenwritethecorrespondingletteronAnswerSheet2.Thehumanbrainisatrulyremarkableorgan.Itcontrolsourthoughts,feelings,andactions,andallowsustolearnandadapttoourenvironment.Despitedecadesofresearch,however,muchabouthowthebrainworksremainsamystery.Oneofthebiggestchallengesinneuroscienceisunderstandinghowdifferentpartsofthebraincommunicatewitheachother.Recentstudieshaveshownthat______(1)communicationmaybemorecomplexthanwepreviouslythought.Neurons,thebasicfunctionalunitsofthebrain,transmitinformationthroughelectricalandchemicalsignals.Thesesignalstravelalongaxons,whicharelongextensionsoftheneuron,andarereceivedbyotherneuronsatsynapses,whicharetinyjunctionsbetweenneurons.______(2),thestrengthandefficiencyoftheseconnectionscanchangeovertime,aprocessknownassynapticplasticity.Thisplasticityallowsthebraintoformnewmemoriesandlearnnewskills.Thereareseveralfactorsthatcaninfluencesynapticplasticity.Oneimportantfactoristheneurotransmitters,whicharechemicalsthatneuronsreleasetotransmitsignals.______(3),certainneurotransmitters,suchasglutamate,canenhancethestrengthofsynapticconnections,whileothers,suchasGABA,caninhibitthem.Thebalancebetweentheseneurotransmittersiscrucialforproperbrainfunction.Anotherfactorthatinfluencessynapticplasticityistheactivityleveloftheneurons.______(4),whenneuronsarefrequentlyactivated,theconnectionsbetweenthemtendtobecomestronger.Thisisknownaslong-termpotentiation(LTP),anditisthoughttobeakeymechanismunderlyinglearningandmemory.Inadditiontothesefactors,theenvironmentalsoplaysaroleinshapingbrainconnectivity.______(5),studieshaveshownthatexperiences,suchaslearninganewlanguageorplayingamusicalinstrument,canalterthestructureandfunctionofthebrain.Thesechangescanoccurinspecificregionsofthebrainthatareinvolvedinthetask,aswellasininterconnectedregions.Understandingthecomplexprocessesthatgovernbrainconnectivityisessentialforadvancingourknowledgeofbrainfunctionandfordevelopingtreatmentsforneurologicaldisorders.______(6),researchersareusingavarietyoftechniques,suchasfunctionalMRIandsingle-neuronrecording,tostudybrainactivityingreaterdetail.Thesetechniquesarehelpingtorevealtheintricatenetworkofconnectionsthatmakeupthehumanbrain.Advancesintechnologyarealsoenablingresearcherstocreatemoreaccuratemodelsofthebrain.______(7),computersimulationscanhelpusunderstandhowdifferentpartsofthebraininteractandhowchangesinonepartofthebraincanaffectotherparts.Thesemodelsarevaluabletoolsfortestinghypothesesaboutbrainfunctionandforpredictingtheconsequencesofbraindamage.Oneofthemostexcitingareasofresearchinneuroscienceisthestudyofbrain-machineinterfaces.______(8),theseinterfacesallowustoconnectthebraindirectlytocomputers,enablingnewformsofcommunicationandinteraction.Thistechnologyhasthepotentialtohelppeoplewithdisabilitiestoregainlostfunctionsandtoenhancehumancapabilities.Thestudyofthebrainisacomplexandchallengingfield,butitisalsoincrediblyrewarding.______(9),eachnewdiscoveryprovidesuswithadeeperunderstandingofourselvesandtheworldaroundus.Asourknowledgeofthebraincontinuestogrow,wecanlookforwardtonewtreatmentsforneurologicaldisordersandnewwaysofenhancingourcognitiveabilities.Finally,itisimportanttorememberthatthestudyofthebrainisacollaborativeeffort.______(10),researchersfromdifferentdisciplines,suchasneuroscience,psychology,andengineering,mustworktogethertofullyunderstandthecomplexitiesofthebrain.Onlythroughthiscollaborativeapproachcanwehopetounlockthefullpotentialofthehumanbrain.Therapiddevelopmentofartificialintelligence(AI)hasraisedconcernsaboutitspotentialimpactonjobs.______,manyexpertsbelievethatAIwillcreatemorejobsthanitdestroys,particularlyinfieldsrelatedtodevelopingandmaintainingAIsystems.However,thenatureofthesejobswillbedifferentfromtraditionaljobs,requiringnewskillsandknowledge.ToprepareforthefutureofworkintheageofAI,individualsneedtofocusondevelopingskillsthataredifficultformachinestoreplicate.______,criticalthinking,creativity,andemotionalintelligenceareessentialskillsthatwillbeinhighdemand.Additionally,individualsneedtobelifelonglearners,continuouslyupdatingtheirskillsandknowledgetostaycompetitiveinthejobmarket.試卷答案1.D)its2.B)However3.A)Forexample4.C)Therefore5.D)Moreover6.B)Consequently7.A)Forinstance8.C)Therefore9.E)Indeed10.F)Indeed解析1.空格所在句意為“最近的研究表明，（大腦）之間的交流可能比我們以前認(rèn)為的更復(fù)雜?！贝颂幮枰粋€(gè)物主代詞的賓格形式，指代“communication”，且在“are”之后，應(yīng)用其第三人稱(chēng)單數(shù)形式，故填its。2.空格所在句意為“這些信號(hào)沿著軸突傳輸，并在突觸處被其他神經(jīng)元接收。然而，這些連接的強(qiáng)度和效率會(huì)隨著時(shí)間而改變?！鼻昂髢删錇檗D(zhuǎn)折關(guān)系，故填However。3.空格所在句意為“有幾種因素會(huì)影響突觸可塑性。一個(gè)重要因素是神經(jīng)遞質(zhì)，神經(jīng)遞質(zhì)是神經(jīng)元釋放以傳遞信號(hào)的化學(xué)物質(zhì)。例如，某些神經(jīng)遞質(zhì)，如谷氨酸，可以增強(qiáng)突觸連接的強(qiáng)度，而另一些，如GABA，可以抑制它們?！鼻昂缶錇榕e例說(shuō)明關(guān)系，故填Forexample。4.空格所在句意為“另一個(gè)影響突觸可塑性的因素是神經(jīng)元的活躍程度。因此，當(dāng)神經(jīng)元被頻繁激活時(shí)，它們之間的連接往往會(huì)變得更強(qiáng)。”前句提到神經(jīng)元的活躍程度是影響因素，后句說(shuō)明其結(jié)果，故填Therefore。5.空格所在句意為“除了這些因素之外，環(huán)境也在