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1、卫生类教材新增文章补全短文卫生B第七篇PoweringNappingisGoodfortheI.Q.阅读理解卫生C第五篇TrackingDownHIV补全短文卫生C第二篇TheHopeChildren^Hospice阅读判断卫生AInquesttoldofhospitalenor补全短文卫生A第十二篇TheenemyWithin卫生B补全短文新增文章★第七篇PowerNappingisGoodfortheI.Q.Todaywehearmoreandmoreabouttheimportanceofgettingen
2、oughsleep一abouteighthoursanight.Sleepcanhelphealandgiveenergytoboththebodyandthebrain.1Itseemsalmostcertainthatthethirdofourlivesthatwespendasleephasagreateffectonthetwo-thirdsthatweareawake.Sleepaffectsouremotions,memory,focus,andbehavior.Studiesshowthatpeop
3、leindevelopedcountriesspendlesstimeasleepandmoretimeatworkorcommuting.Dr.KarineSpiegel,attheUniversityofChicago,hasfoundthattheaveragelengthofsleephasgonedownfromninehoursanightin1910toseven-and・a・halfhoursanighttoday.However,ourbodiescannotfunctionwellwithou
4、tenoughsleep.2AccordingtoCanadianscientistDr.StanleyCoren,everyhouroflostsleepatnightcausesustoloseoneI.Q・pointthenextday.Forexample,whensomeonegetsonlyfiveorsixhoursofsleepeachnightforaweek,thepersorfsI.Q・couldgodown15pointsormore・3Mostsleepexpertssaythathum
5、ansneedatleasteighthoursofsleepeveryday,butitshouldbeintwostages:alongsleepatnightandashorternapintheafternoon.Somecompanieshelptheiremployeesfollowthisadvice.4Theysaythismakestheworkersmuchmoreefficient.Tostudysleepdeprivation(notgettingenoughsleep),scientis
6、tsuseatestcalledtheMultipleSleepLatencyTest(MSLT).Duringthetest,apersonstaysinadarkened,quietroomduringthedaytime・Scientistsbelievethatasleep-deprivedpersonwillfallasleepquickly.Ifittakestenminutesorlongertofallasleep,thepersonisprobablygettingenoughsleep・Sci
7、entistshavealsofoundthatthetimeofyearseemstoaffecthowmuchsleepweneed.5However,inthesummer,peoplesometimessleepaslittleassixhours,withouthavinganyproblems.词汇：emotionn.f青绪commutingn.乘公交车上下班，通勤I.Q.n.智商(全称为intelligentquotient)deprivationn.剥夺，匮乏SleepLatencyTestn.睡
8、眠潜伏期注释：1.have/hasaneffecton...对有效果的2.godownfrom...to…从降至练习：ATheyallowthemto“powernapnintheafternoon,ifonlyfor20minutes.BLosingjustoneortwohoursofsleepanight,overalongperiodoftime,cancause
