—Mary broke up with me!—You _____ have forgotten about the Valentine"s Day．A．sho
题型：不详难度：来源：
—Mary broke up with me!
—You _____ have forgotten about the Valentine"s Day．| A．shouldn"t | B．couldn"t | C．needn"t | D．mustn"t |
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答案
| A |
解析
试题分析：考查情态动词用法。“情态动词+have done”既可以表示对过去情况的推测，也可以表示对过去所发生情况的虚拟。有一些固定搭配：Shouldn’t have done本不应该做某事，实际上却做了；couldn’t have done不可能做了某事；needn’t have done本不必做某事，实际上却做了；句意：—Mary和我分手了！—你本不应该忘记这个情人节的！根据句意说明A正确。
点评：本题是高考必考考点，一定要牢记句型意思。must have done过去肯定做了某事。should have done 本应该做而实际未做。can’t have done 过去不可能做了某事；shouldn’t have done 本不应该做而实际做了。 need have done 本有必要做某事；needn’t have done 本没有必要做某事；注意没有 mustn’t have done的形式 |
举一反三
Teachers recommend parents_____their children under 12 to ride bicycles to school for safety.| A．not allow | B．do not allow | | C．mustn’t allow | D．couldn’t allow |
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If he________his legs in the last training，he________the coming World Cup，which he has been longing to compete in.| A．hadn’t hurt；would join in | B．hadn’t hurt；would have taken part in | | C．didn’t hurt；would go in for | D．didn’t hurt；would have taken part in |
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The manager of the hotel requests that their guests ______ after 12:00 p.m.| A．not to play loud music | B．not play loud music | | C．don’t play loud music | D．couldn’t play loud music |
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If it __________for the snow, we ___________the mountain yesterday.| A．were not; could have climbed | B．were not; could climb | | C．had not been; could have climbed | D．had not been; could climb |
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