题目内容

15．Acupuncture （针刺疗法） is ______ at reducing back pain ______ medicines，according to researchers．（　　）
A．twice as effective； asB．as twice effective； than
C．effective as twice； asD．twice effective as； than

分析 根据研究者的说法，针刺疗法对减轻背部疼痛的效果是药物的两倍．

解答 答案：A
句意表达的是倍数；英语中倍数的表示法有三种：倍数+as…as…；倍数+比较级+than；倍数+the size/length/weight/width/height/speed of；倍数表示法不可混用，本题是倍数+as…as…．故选A．

点评 本题考查倍数表示法．英语中倍数的表示法有三种：倍数+as…as…；倍数+比较级+than；倍数+the size/length/weight/width/height/speed of．学习时，要注意区分和掌握．

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删除：把多余的词用斜线（\）划掉．
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Peterhof is as beautiful as it is fun．You'll be charged for admission，but go to Petethof when the fountains are working-during the day in the summer．They are shut off in winter evenings．
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D．to save more time．
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16．A．howB．whenC．whereD．because
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19．A．trickB．planC．skillD．gift
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23．A．confidenceB．strengthC．patienceD．energy
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25．A．againstB．underC．ontoD．over
26．A．musicB．ballC．coachD．ground
27．A．teammateB．teacherC． radioD．fan
28．A．curiousB．quickC．seriousD．focused
29．A．standB．forgetC．understandD．recognize
30．A．cryB．practiceC．thinkD．argue
31．A．judgedB．watchedC．conductedD．won
32．A．examiningB．avoidingC．sufferingD．reducing
33．A．missedB．offeredC．escapedD．joined
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