2019版高考英语大二轮复习第二部分阅读理解专题十四科普知识类阅读完形填空短文改错优选习题.doc

《2019版高考英语大二轮复习第二部分阅读理解专题十四科普知识类阅读完形填空短文改错优选习题.doc》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、教学课件专题十四　科普知识类阅读+完形填空+短文改错Ⅰ.阅读理解A(2018吉林长春二模)Sleeprepairsthebodyandthemindandhelpspreventdiseasebystrengtheningtheimmunesystem.However,manyadultsdonotgeteighthoursofsleepeachnight.Theaveragesleeptimeanadulttodaygetsisonly6.4hours.Onlyinrecentyearshavehealthprofessionalsbeguntorealize

2、theseriousnessofsleepdeprivationintheworkingpopulation.Asignificantnumberofpeopleworkatnight,worklonghours,orsufferfromsleeplessnessorjetlag.Studiesshowthatthebrainisnegativelyaffectedbysleepdeprivationbecausecertainpatternsofelectricalandchemicalactivitythatoccurduringsleepareinterr

3、uptedandthebraincannotfunctionnormally.Inonestudy,thirteenhealthyadultsubjects(实验对象)whousuallyhadnormalsleeppatternswerekeptawakeandcarefullymonitoredinalabduringaperiodof35hours.Duringtheexperiment,thesubjectswereaskedtoperformseveraltasks,suchasmathematicsandwordproblems,whileunder

4、goingscansoftheirbrainactivity.Theresearchersfoundthatthetemporallobe(颞叶)ofthebrain,theregioninvolvedinlanguageprocessing,wasactiveduringspeechtasksinrestedsubjectsbutnotinsubjectswholackedenoughsleep.Afterseveralhourswithoutsleep,therewasnoactivitywithinthisregion.Severalstudiesshow

5、thatgettingfewerthansixhoursofsleepcandamageshort-termmemoryandreactiontime—thuscausingaseriousriskofaccident.Inonestudyofdrivers,researchersreportedthatsleepdeprivationhadthesameeffectsasbeingdrunk.Theyfoundthatpeoplewhodroveafterbeingawakefor17hoursperformedworsethanthosewithablood

6、alcohollevelof0.5percent,thelegallimitfordrunkdrivinginmostwesternEuropeancountries.Theresearchersconcludedthatcountrieswithdrunkdrivinglawsshouldconsidersimilarrestrictionsagainstsleep-depriveddriving.【语篇解读】本文介绍缺少睡眠给人带来的影响。研究表明睡眠剥夺对大脑活动有不利的影响,它和醉酒有同样的危险性。1.Whatdoestheunderlinedword“

7、deprivation”inthefirstparagraphmean?　　　　　　　　　　　　A.Weakness.B.Loss.C.Discomfort.D.Pain.答案B解析词义猜测题。根据第一段中“Onlyinrecentyearshavehealthprofessionalsbeguntorealizetheseriousnessofsleepdeprivationintheworkingpopulation.”的关键词seriousness“严重”,可知是缺觉带来的严重性。画线词的意思是“缺少,损失”,故选B项。2.Thepassagementio

8、nsallofthefo