“情态动词-have-done”重点讲解.pptVIP

A. could have stay B. could stay C. would stay D. must have stay A. had said B. said C. might say D. might have said 3、 “need+have+done” 表示本来需要做某事而没有做。“needn‘t+have+done”则表示“本来不需要做某事而做了”。 I needn‘t have bought so much wine—only five people came. 我本来没有必要买这么多酒，只来了五个人。 He need have hurried to the station. In that case, be wouldnt have missed the train. 他本来需要快点去车站，那样的话，他就不会误了火车。 6、 “would+have+done” 虚拟语气，表示对过去事情的假设，意思是“本来会做”。 1. I would have told you all about the boys story, but you didnt ask me. 我本来会告诉你这个小男孩的故事，但是你没有问我。 2. Without your help, I wouldnt have achieved so much. 没有你的帮助，我是不会取得如此大的成绩。 A. must be B. must have been C. should be D. should have been A. must be B. must have been C. should be D. should have been 2、 “may+have+done” 表示对发生过的事情的推测，意思是“可能已经”或“也许已经”，用于肯定句中。 —What has happened to George? —I dont know. He may have got lost. —乔治发生了什么事？ ——我不知道，他可能迷路了。 A. might?? B. should???? C. can???? D. will 　3、 “might+have+done” 表示对过去事情的推测，might与may意思相同，但可能性更小。多用于虚拟语气结构中。 1. He might have given you more help, even though he was busy. (MET90) 他或许会多给你一些帮助，即使他很忙。 2. She might have achieved greater progress, if you had given her more chances. 如果你多给她点机会，她可能已经取得更大的成绩。 mustn’t??? B. haven’t ????? C. can’t????? D. didn’t A. didn’t???? B. hasn’t?????? C. mustn’t??????? D. can’t ??? 4. I didn’t see her in the meeting-room this morning. She ____ at the meeting. (1995 上海)??????? A. mustn’t have spoken?? B. shouldn’t have spoken??????? C. needn’t have spoken?? D. couldn’t have spoken 本句表达的是过去已发生情况否定的推测判断，应该用couldn’t have done，故答案选D。 5. My English-Chinese dictionary has disappeared. Who ___ have taken it? (2003 上海春招)A. should???? B. must????? C. could?? D. would 本句表达的是对过去发生过的情况的疑问，所以应该用could have done，答案选C。 6.?--- There were already five people in the car but they managed to take me as well.?? --- It ___ a comfortable journey