2025年英语六级考试语法填空专项训练试卷：突破语法填空难题

2025年英语六级考试语法填空专项训练试卷：突破语法填空难题考试时间：______分钟总分：______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.试卷答案1.D)its2.B)However3.A)Forexample4.C)Therefore5.D)Moreover6.B)Consequently7.A)Forinstance8.C)Therefore9.E)Indeed10.F)Indeed解析1.空格所在句意为“最近的研究表明，（大脑）之间的交流可能比我们以前认为的更复杂。”此处需要一个物主代词的宾格形式，指代“communication”，且在“are”之后，应用其第三人称单数形式，故填its。2.空格所在句意为“这些信号沿着轴突传输，并在突触处被其他神经元接收。然而，这些连接的强度和效率会随着时间而改变。”前后两句为转折关系，故填However。3.空格所在句意为“有几种因素会影响突触可塑性。一个重要因素是神经递质，神经递质是神经元释放以传递信号的化学物质。例如，某些神经递质，如谷氨酸，可以增强突触连接的强度，而另一些，如GABA，可以抑制它们。”前后句为举例说明关系，故填Forexample。4.空格所在句意为“另一个影响突触可塑性的因素是神经元的活跃程度。因此，当神经元被频繁激活时，它们之间的连接往往会变得更强。”前句提到神经元的活跃程度是影响因素，后句说明其结果，故填Therefore。5.空格所在句意为“除了这些因素之外，环境也在