情态动词+have-done用法.docVIP

情态动词+have-done用法 情态动词+have-done用法 PAGE 情态动词+have-done用法 情态动词＋have done (have been doing ) 一、教学目标 情态动词＋have done (have been doing ) 的用法 生成问题 情态动词+have done (have been doing ) 的用法有哪些？ should(ought to)＋have done (have been doing )表示“本来应该做而实际上没做”，其否定式表示“本来不该做却做了”，常含有责备的语气。 You should have been here five minutes ago.五分钟之前你就应该到这里了。 How I regretted the days when I had played and should have studied. 我多么懊悔我本应该好好学习的日子都玩掉了。 We shouldn’t have been resting so long.我们真不该休息这么长时间。 could＋have done表示“本来有能力做而实际上没有做”。 —We could have walked to the station, it was so near. 这么近，我们完全能走着来车站。 —Yes. A taxi was not at all necessary.是呀，根本不必搭车的。 I could have won if I hadn’t fallen over.要不是摔倒，我准能赢。 3、needn’t＋have done表示“本来不必做的事，实际上做过了 ”。 I got up early, but needn’t have done so, because I had nothing to do that morning. 那天早上我起得很早，可我根本不必起这么早，因为我无事可做。 You needn’t have written such a long article. The teacher only asked for 300 words, and you have written 600 words. 你没有必要写这么长的文章，老师只要求写300字，你写了600字。 4、would like to have done表示“本来希望做而却未做的事”。 I’d like to have gone to college.我要是上大学就好了。 I’d like to have seen to his face when he opened the letter. 我真想看到他拆信时的脸色。 5、can(could) ＋have done (have been doing )表示对过去情况的推测，只用于否定和疑问句中，意为“一定没有······，一定不会······”。用could比用can语气更加委婉。 He couldn’t have gone to bed, you see, the light in his room is still on. 他一定还没有睡，瞧，他房间的灯还亮着呢。 Where is Dick Where can he have gone Can he have been working 狄克在哪儿呢他会去哪儿呢他能一直干活吗 6、must＋have done (have been doing )表示对过去情况的推测，只用于肯定句，意思是“一定······”。 Her eyes are red, she must have been crying.她两眼通红，一定一直在哭。 You must have left your handbag in the theatre, I think. 我想你一定把手提包丢在剧场了。 7、may(might) ＋have done (have been doing )表示对过去的推测，多用于陈述句，意思是“可能······”。用might比用may语气更加委婉。 I may have misunderstood him. 我可能误解他了。 She might have taken the book with her, I suppose.我想她可能把书带走了。 They might have been quarrelling about the problem the whole day. 对于那个问题他们可能一天都争论不休。 8、would(should) ＋have done (have been doing )用于虚拟条件句中，表示与过去事实相反。Should只用于第一人称，would用于各人称。