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  Duringthe19thcenturyscientistsfoundthatwhencertainpartsofthebrainofapersonwerehurthewouldlosethepowerofdoingcertainthings.Andsopeoplethoughtthateachpartofthebraindoesadifferentjob.Butmodernresearc

  Duringthe19thcenturyscientistsfoundthatwhencertainpartsofthebrainofapersonwerehurthewouldlosethepowerofdoingcertainthings.Andsopeoplethoughtthateachpartofthebraindoesadifferentjob.Butmodernresearchhasdiscoveredthatthisisnotsoforitisnoteasytoshowexactlywhateachpartofthebraindoes.

  Inthepastfiftyyearstherehasbeenagreatincreaseintheamountorresearchdoneonthebrain.Scientistshavefoundoutthatthewaythebrainworksisnotsosimpleaspeopleingeneralmaythink.Chemiststellusthatabout100000chemicalchangestakeplaceinthebraineverysecond.Somerecentresearchesalsosuggestthatwecanremembereverythingthathappenedtous.Wemaynotbeabletothinkofthethingswehaveheardandseenbutitiskeptthereinthestore-houseofthehumanmind.Earlierscientiststhoughtthatthepowerofone’sbraingotweakerandweakerasonegrowsolder.Butitisplentyofexerciseitkeepsitspower.Itisnowthoughtthatisnottrue.Aslongasthebrainisgivenplentyofexerciseitkeepsitspower.Ithasprovedthatanoldpersonwhohasalwaysbeenactiveinthemindhasaquickermindthanayoungpersonwhohasdonephysicalworkwithoutusingmuchofhisbrain.

  小题1:Inthelastcenturyscientistsfoundthatapersonwouldlosethepowertodocertainthings_____.A.whenhegotweakerinhealthB.ifcertainpartsofhisbrainwerehurtC.afterhedidaquitedifferentjobD.whenhegrewolder小题2:Scientiststodayarestillunabletoshowexactly______.A.whateachpartofthebrainisdoingB.howmanychemicalchangestakeplaceinthebraineachsecondC.whethereachpartofthebraindoesthesamejobD.whichpartofthebrainisthemostimportant小题3:Ithasbeenfoundthatone’sbrainusuallyworks______.A.fasterwhenheisoldB.alittlenowandalittlethenC.inaverysimplewayD.withoutanyrestalldaylong小题4:WhichofthefollowingisNOTtrueaccordingtothetext?A.Scientistsareworkinghardattheresearcheson

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2020-08-19 21:43
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罗建平

  小题1:B小题2:A小题3:D小题4:C小题5:B

  分析:

  本文介绍了如果给我们的大脑足够的练习,人的大脑就会做更多的事情,而且这个不会随着年龄的变化而变化。小题1:B细节题。根据文章第一段12行Duringthe19thcenturyscientistsfoundthatwhencertainpartsofthebrainofapersonwerehurthewouldlosethepowerofdoingcertainthings.说明当人的大脑的一部分损坏的时候,身体的一部分的功能也失去了。B正确。小题2:A细节题。根据第一段最后2行Butmodernresearchhasdiscoveredthatthisisnotsoforitisnoteasytoshowexactlywhateachpartofthebraindoes.说明现在的科学家还没有彻底搞清楚这样的问题,故A正确。小题3:D推理题。根据第二段34行Chemiststellusthatabout100000chemicalchangestakeplaceinthebraineverysecond.说明人的大脑每秒钟都在运行,没有休息的时间。故D正确。小题4:C细节题。根据文章最后3行Ithasprovedthatanoldpersonwhohasalwaysbeenactiveinthemindhasaquickermindthanayoungpersonwhohasdonephysicalworkwithoutusingmuchofhisbrain.说明如果不运用脑子来思考,那么一定会思维缓慢。如果用脑子思考了,就会思维迅速。故C项的说法不准确。小题5:B推理题。根据文章倒数34行Aslongasthebrainisgivenplentyofexerciseitkeepsitspower.说明如果我们给我们的大脑足够的练习,那么我们的大脑就会做更多的事情。故B正确。

  点评:

  本文属于科普类阅读,难度在于考生对阅读内容的不熟悉,需要考生在阅读的时候有足够的耐心。要养成在上下文串联中猜测词义的能力,根据上下文中出现的同义词,近义词,反义词,以及词义的解释来理解生词。同时要抓住文章的中心,不要受其他信息的影响。要根据题目及选项以及文章的上下文串联合理的判断推理。

2020-08-19 21:46:06

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