wake up,sleep gene 阅读理解答案解析和译文

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1、WakeUp，SleepGeneSomepeoplecanstayupallnightandstillgetworkdonethenextday．I’mnotoneofthem．Afteranightwithoutenoughsleep，Ifeelbad-tempered．Ihavetroublerememberingthings．AndallIwanttodoiscrawlbackintobedandsleep．Howdoyoufeelafteryou’vestayeduplatetofinishschoolwork?

2、Orthedayafteranovernightparty?Scientistsnowsaythatyouranswerstothesequestionsmaydependonyourgenes．Newresearchsuggeststhatagenecalledperiod3affectshowwellyoufunctionwithoutsleep．Theperiod3genecomesintwoforms:shortandlong．Everyonehastwocopiesofthegene．So，youmayhave

3、twolongs，twoshorts，oroneofeach．Yourparticularcombinationdependsonwhatyourparentspassedontoyou．ScientistsfromtheUniversityofSurreyinEnglandstudied24peoplewhohadeithertwoshortortwolongcopiesofperiod3．Studyparticipantshadtostayawakefor40hoursstraight．Then，theytookte

4、ststhatmeasuredhowquicklytheypushedabuttonwhennumberflashedonascreenandhowwelltheycouldrememberlistsofnumbers．Resultsshowedthatthepeoplewiththeshortformofperiod3performedmuchbetterontheseteststhanthepeoplewiththelongformdid．Inbothgroups，peopleperformedworstinthee

5、arlymorning．That’sthetimewhentruckdriversandothernight-shiftworkerssaytheyhavethemosttroubleconcentrating．Afterthefirstroundofexperiments，participantswerefinallyallowedtosleep．Peopleinthegroupthatperformedwellontheteststookabout18minutestonodoff．Peoplewiththelong

6、period3genes，bycontrast，fellasleepinjust8minutes．Theyalsospentmoretimeindipsleep．Thatsuggeststhatpeoplewiththelongformofthegeneneedmoreanddeepersleeptokeeptheirbrainsworkingattopform．IthinkImusthavethelongformofperiod3．Whataboutyou?24．Thepurposeofthispassagemight

7、be________．A．totellustheimportanceofplentyofsleepB．totelltheresultofaresearchonsleepygeneC．toinformtheharmoflackingsleepD．toannouncethesleepingrulesofhumans25．Whatkindofpeopleneedlesssleepaccordingtotheresearch?A．ThosewithtwoshortcopiesofthegeneB．Thosewithtwolong

8、copiesofthegeneC．ThosewithoneshortandonelongcopiesofthegeneD．Thosewiththreeshortcopiesofthegene．26．Ifonelacksenoughsleep，oneshouldavoiddoingimportantordangerou