2025年英语六级阅读理解词汇理解技巧专项训练试卷

2025年英语六级阅读理解词汇理解技巧专项训练试卷考试时间：______分钟总分：______分姓名：______PartIReadingComprehensionDirections:Inthepassagebelow,thereare10blankseachnumberedfrom(1)to(10).Foreachblank,therearefourchoicesmarkedA),B),C)andD).Youshouldchoosethebestoneforeachblankaccordingtothepassage.MarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.Thehumanbrainisaremarkableorgan,responsibleforavastarrayoffunctionsthatdefineourexistence.Whilemuchaboutitsoperationsremainsamystery,researcherscontinuetomakefascinatingdiscoveriesregardingitscomplexityandadaptability.Oneparticularlyintriguingareaofstudyinvolvesthebrain'sabilitytoreorganizeitselfinresponsetonewexperiencesandlearning,aphenomenonknownasneuroplasticity.Neuroplasticitychallengestheonceprevailingnotionthatthebrainisanimmutablestructure,fixedlongafterearlydevelopment.Instead,itrevealsadynamicsystemcapableofalteringitsneuralpathwaysthroughoutlife.Thisadaptabilityisnotmerelytheoretical;ithassignificantimplicationsforlearning,rehabilitation,andevenourpotentialforpersonalgrowth.Forinstance,studiesonstrokevictimshaveshownthatwithtargetedtherapy,thebraincanoftenrewireitselftocompensatefordamagedareas,enablingpatientstoregainlostfunctions.Themechanismsunderlyingneuroplasticityaremultifaceted.Whenwelearnanewskillorformanewmemory,neuronswithinthebrainformnewconnectionsorstrengthenexistingones.Thisprocess,involvingthegrowthofdendritesandtheformationofsynapses,requiresthesynthesisofvariousproteinsandtherestructuringofcellularcomponents.Neurotransmitters,thechemicalmessengersbetweenneurons,alsoplayacrucialroleinmodulatingplasticitybyfacilitatingcommunicationbetweennervecells.Environmentalfactorssignificantlyinfluenceneuroplasticity.Enrichedenvironments,richinstimuliandlearningopportunities,canpromotegreaterplasticitycomparedtoimpoverishedsettings.Physicalexercise,forexample,hasbeenshowntoenhanceneurogenesis,thebirthofnewneurons,particularlyinthehippocampus,aregionvitalforlearningandmemory.Similarly,mentalstimulationthroughactivitieslikelearningamusicalinstrumentoranewlanguagecanfosterthedevelopmentofnewneuralconnections,strengtheningcognitiveabilities.However,neuroplasticityisnotlimitless.Thebrain'scapacitytochangeisinfluencedbyage,health,andindividualdifferences.Whilechildrenexhibithighlevelsofplasticity,allowingforrapidlearninganddevelopment,thisabilitytendstodecreasewithage.Certainneurologicalconditionscanalsoimpairplasticity,makingrecoverymorechallenging.Yet,understandingtheselimitationsisequallyimportantasrecognizingthebrain'spotentialforadaptation.Researchintoneuroplasticityholdsprofoundpromiseforvariousfields.Ineducation,insightsfromthisresearchcaninformteachingmethods,emphasizingtheimportanceofactivelearningandcreatingstimulatingenvironments.Inmedicine,understandinghowthebrainreorganizesitselfcanleadtomoreeffectiverehabilitationstrategiesforindividualswithbraininjuriesorneurologicaldisorders.Furthermore,itsuggeststhatmentalexercisesmighthelpdelaythecognitivedeclineassociatedwithaging.Ultimately,thestudyofneuroplasticityunderscorestheremarkablenatureofthehumanbrain.Itisnotastaticentitybutaliving,evolvingsystemcapableofcontinuouslearningandadaptation.Byharnessingourunderstandingofthisphenomenon,wemayunlocknewavenuesforenhancinghumanpotentialandimprovingthequalityoflifeformillionsworldwide.(1)______thebrainisanorganofimmensepower,capableofprocessinginformationatincrediblespeedsandexecutingcomplextaskssimultaneously.(2)_______itchallengesthetraditionalviewofthebrainasarigidstructure,plasticityhighlightsitsinherentflexibilityandresilience.(3)_______thebraincanrewireitselftocompensatefordamage,offeringhopeforrecoveryandrehabilitation.(4)Thisprocess,involvingthegrowthofdendritesandtheformationofsynapses,requiresthesynthesisofvariousproteinsandtherestructuringofcellularcomponents.(5)_______physicalexercisehasbeenshowntoenhanceneurogenesis,particularlyinthehippocampus,aregionvitalforlearningandmemory.(6)Whilechildrenexhibithighlevelsofplasticity,allowingforrapidlearninganddevelopment,thisabilitytendstodecreasewithage.(7)Understandingtheselimitationsisequallyimportantasrecognizingthebrain'spotentialforadaptation.(8)Ineducation,insightsfromthisresearchcaninformteachingmethods,emphasizingtheimportanceofactivelearningandcreatingstimulatingenvironments.(9)Furthermore,itsuggeststhatmentalexercisesmighthelpdelaythecognitivedeclineassociatedwithaging.(10)_______thestudyofneuroplasticityunderscorestheremarkablenatureofthehumanbrain,revealingitscapacityforcontinuouslearningandadaptation.试卷答案(1)A解析：空格前指出大脑是强大的器官，空格后说明其处理信息和执行任务的能力。选项A"Given"（考虑到，鉴于）能连接前后句，表示基于大脑是强大器官这一事实，引出其处理信息的能力。(2)B解析：空格前说明神经可塑性挑战传统观点，空格后说明其突显大脑的灵活性和韧性。选项B"However"（然而）表示转折，连接前后句，说明尽管挑战传统观点，但突显了其灵活性。(3)C解析：空格前提到大脑可以重塑自身以补偿损伤，空格后是这一现象带来的希望。选项C"Thus"（因此）表示结果，连接前后句，说明因此大脑可以重塑自身，带来希望。(4)D解析：空格后详细描述了神经可塑性的机制，包括树突生长、突触形成、蛋白质合成和细胞重组。选