sleeping in on saturday after a few weeks of too little shuteye阅读理解答案

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1、SleepinginonSaturdayafterafewweeksoftoolittleshuteye阅读理解答案　　SleepinginonSaturdayafterafewweeksoftoolittleshuteyemayfeelrefreshing,butitcangiveafalsesenseofsecurity.　　Newresearchshowslong-termsleeplosscannotbecuredthateasily.Scientistsresearched　　theeffectsofshort-andlong-termsleep

2、lossandfoundthatthosewhosufferlong-termsleeplossmayfunctionnormallysoonafterwakingup,butexperiencesteadilyslowerreactiontimesasthedaygoesby,eveniftheyhadtriedtocatchupthepreviousnight.　　Theresearchhasimportantsafetysignificancesinanincreasinglybusysociety,notjustforshift-workersbu

3、tfortheroughlyoneinsixAmericanswhoregularlygetsixhoursorlessofsleepanight.　　“Weknowthatstayingawake24hourswithoutsleepwillaffectyourperformancetodoallsortsofthings,andthiseffectequalstodrinkingtoomuchwhendriving,”saidleadresearcherDr.DanielCohenofBoston’sBrighamandWomen’sHospital.

4、Butwhenthosewhosufferlong-termsleeplossbecomeall-nighters,“theharmisincreasedtentimes,”Cohensaid.　　TheNationalInstitutesofHealthsaysadultsneedsevenhourstoninehoursofsleepforgoodgettingtoolittlesleepincreasestheriskofhealthproblems,includingmemoryimpairmentandaweakenedimmunesystem.

5、Moreimmediately,toolittlesleepaffectsreactiontimes;sleepinessistoblameforcarcrashesandotheraccidents.　　Ithascriticallyimportantcomplicatedandunexpectedresultsforanyonewhoworks“crazyhours”andthinkstheyareperformingfinewithafewhoursofweeknightsleep,saidHarris,directoratNewYork’sMont

6、efioreMedicalCenter.“Don’tthinkyoucanjustbankupyoursleepontheweekend,becauseitdoesn’tworkthatway,”hewarned.　　textmainlyadvisespeople______.　　A．tosleepmoretimeB．tosleepinonSaturday　　C．tosleepscientificallyD．tosleeplittleonweekend　　withlong-termsleeploss______.　　A．arequickerinthinki

7、ngB．mayfeelrefreshedsoonafterwakingup　　C．aresurelyenergeticD．canhaveastrongsenseofsecurity　　canwelearnfromthetext?　　A．MostoftheAmericansgetsixhoursorlessofsleepanight.　　B．Stayingupisworseforthosewhosufferlong-termsleeploss.　　C．Trafficaccidentshavelittletodowithsleepiness.　　D．Onein

8、sixAmericansareall-nighters.　　oft