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  Sleepissomethingwealldo.Butsomepeopleneedtosleepmorethanothers.Babiessleepmostofthetime.Childreninschoolsleepabouttentotwelvehoursanight.Mostgrown-upssleeponlysevenoreighthours.小题1:Allpartsof

  Sleepissomethingwealldo.Butsomepeopleneedtosleepmorethanothers.Babiessleepmostofthetime.Childreninschoolsleepabouttentotwelvehoursanight.Mostgrown-upssleeponlysevenoreighthours. 小题1:

  Allpartsofourbodieshavetorestaftertheywork.Ourarmsneedarestafterweliftheavythings.Whenwerunfast,ourlegsworkhard.Theygettired.Wehavetorestthem.Ourbrainsworkhard,too. 小题2:72 Wecansitquitestillandrestourarmsandlegs.Butourbrainsaren’tresting.Theygorightonthinkingaslongasweareawake.

  Ourbrainsslowdownabitwhenwesleepanddream. 小题3: Insteadofthinkingwide-awakethought,ourbrainsmakeupdreams.Somedreamsareverypleasing.Somearenot.Mostofthetimeweforgetthemwhenwewakeup.

  Scientistshavetriedtofindoutwhatwouldhappenifpeoplewerenotallowedtosleep.Theyaskedsomepeoplenottogotobed.Thepeoplestayedupallnightandallthenextday.Theystayedupthenextnight,tooandthedayafter.Theyplayedgames.Buttheymademistakes.Theyforgotthings. 小题4: .Thepeoplegrewrudeandmean.Theybecameangrywiththeirfriends.Finallytheyweretootiredtostandup.Themomenttheysatdown,theyfellasleep.

  Scientistsfoundthatifpeoplearenotallowedtosleep,theyactinanunusualway.

  小题5: Butwedoknowthatweneedittostaywell.

  Sotonighthaveagoodsleep.Liedownunderthecovers.Shutyoureyes.Letyourthoughtstravelabout.Soonyou’llstopthinking.You’llbeasleep.A.Butevenaswesleepourbrainsaredoingsomework.B.Itwashardfortheirtiredbrainstowork.C.Whenweareawake,theyhelpuspayattentiontotheworldaroundus.D.Nooneknowsquitesurelywhysleepissogoodforus.E.Goodsleephelpstoimproveone’smemory.

  F.Butbabies,childrenandgrown-ups----allofusneedtohaveoursleep.

1回答
2020-06-13 07:59
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胡一全

  小题1:F

  小题1:C

  小题1:A

  小题1:B

  小题1:D

  略

2020-06-13 08:00:28

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