1704960919
supposing偶尔也可表示建议：
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1704960921
“Daddy, can I watch TV?” “Supposing you do your homework first.” “爸，我能看电视吗？”“你先把作业做了如何？”
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1704960923
what if也可用来表示“如果……怎么办？”：
1704960924
1704960925
What if he comes back？如果他回来了怎么办？
1704960926
1704960927
What if she finds out that you’ve lost her book？如果她发现你把她的书丢了怎么办？
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1704960929
也可用来提出建议：
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1704960931
What if you go instead of me？你代替我去如何？
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1704960933
What if we move the picture over there？把那张画搬到那儿怎样？
1704960934
1704960936
857 supposed to
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1704960938
supposed to常可与不定式构成复合谓语，表示“应该”、“理应”：
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1704960940
He is supposed to arrive on the five o’clock train．他应该坐5点钟的火车到。
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1704960942
Summer is supposed to come in during May．夏天理应于5月开始。
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1704960944
Who is supposed to look after this room？这个房间应由谁负责？
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1704960946
不定式有时用进行形式或完成形式：
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1704960948
He is supposed to be washing his car．现在他应当在洗车。
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1704960950
You are supposed to have finished by now．你现在应该已经完成。
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1704960952
有时be supposed to表示“被认为”、“据信为”：
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1704960954
He was supposed to be a college graduate, but he knew nothing of history．他被认为是大学毕业生，但他对历史却一无所知。
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1704960956
Business was not as good as it was supposed to be．生意不如想象的那么好。
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1704960958
This stuff is supposed to kill flies. Let’s try it．这东西据说能灭苍蝇，咱们试试。
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not be supposed to表示“不应当”：
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1704960962
He‘s not supposed to do that．他不应当这样做。
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1704960964
You‘re not supposed to know that．你不应当知道这事。
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supposed to应读作/səˈpəustə/，不宜读作/səˈpəuzd tə/。
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