题目内容

12.Researchers have come to the conclusion over the last 5years ____ teens need to sleep until about 8:00the next morning.(  )
A.whenB.whatC.whetherD.that

分析 研究人员在过去的5年已经得出结论,青少年需要睡到第二天早上8:00.

解答 答案:D.根据 teens need to sleep until about 8:00the next morning可知整句是对前面 the conclusion 的补充说明,是同位语从句,不缺成分,故选D.

点评 本题考查同位语从句,在熟知同位语从句连接词及充分分析句型基础上便能选出正确答案.

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12.A.weakB.aloneC.illD.cruel
13.A.magicB.excitingC.unexpectedD.sad
14.A.trueB.strangeC.rudeD.useful
15.A.comfortableB.specialC.safeD.conscious
16.A.marriedB.stayedC.metD.worked
17.A.impressionB.expressionC.discussionD.attention
18.A.dangerB.troubleC.surpriseD.silence
19.A.dashedB.rushedC.pushedD.carried
20.A.AngryB.ConfidentC.AnxiousD.Proud
21.A.daughterB.friendC.neighborD.wife
22.A.slow downB.go downC.look downD.burn down
23.A.readyB.eagerC.unwillingD.unable
24.A.revealedB.repeatedC.agreedD.admitted
25.A.evenB.insteadC.stillD.again
26.A.thoughB.afterC.sinceD.when
27.A.attitudeB.examinationC.conditionD.pain
28.A.cleanB.removeC.touchD.move
29.A.wonderfulB.difficultC.ridiculousD.important
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