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1、Unit5StressandMemory[课下练熟高考]“阅读＋七选五＋完形”组合练——练题型(限时：35分钟)Ⅰ.阅读理解(2017·南宁市高中毕业班适应性测试)Likethebody'smuscles,bones,andothervitalorgans,thebrainfeelstheeffectofaging.Throughyearsofconstantuseandbiologicalwearandtear,thebraingraduallylosessomeofitssharpnessinproc
2、essinginformation.Aspeoplebegintoage,theymaybegintohaveproblemswithmemory.Oneofthemostnoticeableproblemareasinvolvesthetemporaryforgettingofnames.Actuallyeveryonehasthisprobleminolderage.Itisimportanttonotethatnormalagerelatedmemorylossdoesnotindicatelosi
3、ngintelligenceorabilitytolearn.Thebrainmaysimplyneedmoretimetorecallinformationfrommemoryortolearnnewinformation.Simpleforgetfulnessisnotadisease.Studiesonlearningandmemoryprovideanactiveareaofresearchformanyneuroscientists.Ingeneral,howthebrainselectsand
4、storesinformationfallsintothreecategories.Eachcategoryservesadistinctpurposeandisgenerallyindependentofintelligenceorlevelofeducation.Memorycategoriesinclude：Shortterm/Temporaryrecollection.Ifyouarecallingtheflorist(花商),youlookupthephonenumberandrememberi
5、tlongenoughtoplacethecall.Onceyouhavefinishedthecall,theinformationdisappears.Ifyouwereinterruptedbeforemakingthecall,youmaylosethismaterial.Longterm(recent)．Thiscategorypreservestherecentpast,suchaswhatyouhadforbreakfasttoday,ortheoutfitthatyouworeafewda
6、ysago.Longterm(remote)．Thisrecordsthedistantpast.Thesememories,learned10or20yearsago,formyourknowledgebase.Thiscategorycanincludeaconversationoratunefromyourhighschoolfightsong.Otherinformationinthismemorystoreshapesyourpersonalhistory,suchaswhatyouweredo
7、ingthedayPresidentJohnKennedywasassassinated(刺杀)．Agingdoesnotgenerallyaffectshortorlongterm(remote)memory.Thesefunctionsarewellpreserved.However,longterm(recent)memoryoftendeclineswithage.Tostoreandregainrecentinformationfromlongterm(recent)memory,thebrai
8、nperformsacomplexchainofchemicalandelectricalfunctionsinvolvingnervecells.Asoneages,someofthesecellsmaydeteriorateandfunctionlessefficiently.语篇解读：本文是一篇说明文。随着年龄的增长，人们的记忆力也会逐渐衰退，但这并不意味着人们丧失了智力或学习能力。本文讲述了人的几种记忆，年龄增长只会影
