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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,thebraingraduallylosessomeofitssharpnessinprocessinginformation.As
2、peoplebegintoage,theymaybegintohaveproblemswithmemory.Oneofthemostnoticeableproblemareasinvolvesthetemporaryforgettingofnames.Actuallyeveryonehasthisprobleminolderage.Itisimportanttonotethatnormalagerelatedmemorylossdoesnotindicatelosingintelligenceorabilitytolearn.Thebrainm
3、aysimplyneedmoretimetorecallinformationfrommemoryortolearnnewinformation.Simpleforgetfulnessisnotadisease.Studiesonlearningandmemoryprovideanactiveareaofresearchformanyneuroscientists.Ingeneral,howthebrainselectsandstoresinformationfallsintothreecategories.Eachcategoryserves
4、adistinctpurposeandisgenerallyindependentofintelligenceorlevelofeducation.Memorycategoriesinclude:Shortterm/Temporaryrecollection.Ifyouarecallingtheflorist(花商),youlookupthephonenumberandrememberitlongenoughtoplacethecall.Onceyouhavefinishedthecall,theinformationdisappears.If
5、youwereinterruptedbeforemakingthecall,youmaylosethismaterial.Longterm(recent).Thiscategorypreservestherecentpast,suchaswhatyouhadforbreakfasttoday,ortheoutfitthatyouworeafewdaysago.Longterm(remote).Thisrecordsthedistantpast.Thesememories,learned10or20yearsago,formyourknowled
6、gebase.Thiscategorycanincludeaconversationoratunefromyourhighschoolfightsong.Otherinformationinthismemorystoreshapesyourpersonalhistory,suchaswhatyouweredoingthedayPresidentJohnKennedywasassassinated(刺杀).Agingdoesnotgenerallyaffectshortorlongterm(remote)memory.Thesefunctions
7、arewellpreserved.However,longterm(recent)memoryoftendeclineswithage.Tostoreandregainrecentinformationfromlongterm(recent)memory,thebrainperformsacomplexchainofchemicalandelectricalfunctionsinvolvingnervecells.Asoneages,someofthesecellsmaydeteriorateandfunctionlessefficiently
8、.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