完形填空先通读下面的短文,掌握其大意,然后在每小题所给的四个选项中,选出可以填入空白处的最佳选项。(本大题共10分,每小题1分)
Uptotwo-thirdsofchildrendon’tgetasmuchsleepastheyshoulddoandthiscanmakethemnervousandsloweratschoolresearcherssay.
Soshouldyoungpeoplesleepeachnight?Theanswerisbetween8and10hours.Ifyoudon’tgetenoughsleepatnightyou’llhaveenergythenextday.
Buttheresearcherssaymanychildrenhavemissedouton4500hoursofsleepbythetimetheyare7yearsold.TheysaythatchildrenmisssleepbecausetheyhaveTVsandcomputersintheirroomsandparentsdon’treadtotheiryoungerchildrenatnightanymore.Thetraditional“bedtimestory”helpschildrentorelaxandfallasleep.ChildrenwithTVsandcomputersintheirbedroomsaremorelikelytosleepbadlyandtogetlessthan8hourssleep.Evenonehour’ssleepanightcanmeanthatchildrendolesswellatschool.
Germanscientiststhinkthatyourkeepsworkingwhileyouareasleep.Toshowthattheyweretheygavetwogroupsofpeopleaproblemtoworkout.Onegroupwenttosleepandtheothergroupstayed.Theresult?Thepeoplewhosleptworkedouttheanswermorequicklysuggestingthattheirbrainshadbeentryingtotheanswerwhilethepeoplewereasleep.Somakesureyougetenoughsleeptonightyou’llbeatyourbesttomorrow.
1.A.howmuchB.howmanyC.howlongD.howoften
2.A.moreB.lessC.fewD.little
3.A.proudB.freeC.poorD.busy
4.A.peacefullyB.carefullyC.happilyD.sadly
5.A.losingB.lostC.loserD.loss
6.A.headB.brainC.heartD.thought
7.A.perfectB.brightC.rightD.great
8.A.awakeB.aliveC.asleepD.absent
9.A.thinkoverB.openupC.findoutD.putdown
10.A.orB.butC.ifD.and