情態(tài)動(dòng)詞+have-done的用法

1、“情態(tài)動(dòng)詞+have done”的用法 一、 “must have done” 一定做過某事表示對(duì)過去事情的肯定推測(cè)，該結(jié)構(gòu)只用于肯定句。 1. It must have rained last night, for the ground is wet. 昨晚一定下雨了，因?yàn)榈孛孢€是濕的。2. You must have been mad to speak to the servant. 你和仆人說話，一定是發(fā)瘋了。二、 “cant have done” “couldnt have done” 不可能做過某事表示對(duì)過去事情的否定推測(cè)，“couldnt have done”較少使用。1. Mr.

2、 Smith cant have gone to Beijing, for I saw him in the library just now. 史密斯先生不可能去北京了，我剛才還在圖書館見過他。2. Mary cant have stolen your money. She has gone home. 瑪麗不可能偷你的錢，她回家去了。三、 “could have done” 過去可能做某事；本來能夠做某事但沒做有兩種用法，一種表示猜測(cè)，“過去可能做過某事”；另一種是虛擬語氣，表示對(duì)過去事情的假設(shè)，意思是本來能夠做某事而沒有做。What could have happened? 難道是發(fā)生了

3、什么事嗎？He could have passed the exam, but he was too careless. 本來他能夠通過考試，但是他太粗心。四、 “can have done” 較少使用到此結(jié)構(gòu)表示對(duì)過去行為的懷疑，用于疑問句，譯成“可能做過嗎？”。1. There is no light in the room. Can they have gone out? 屋里沒有燈，他們可能出去了嗎？2. There is nowhere to find them. Where can they have gone? 到處找不到他們，他們可能到什么地方去呢？五、 “may have d

4、one” 表示對(duì)發(fā)生過的事情的推測(cè)，意思是“可能已經(jīng)”或“也許已經(jīng)”，用于肯定句中。 What has happened to George?I dont know. He may have got lost.喬治發(fā)生了什么事？我不知道，他可能迷路了。六、 “might have done” 表示對(duì)過去事情的推測(cè)，might與may意思相同，但可能性更小。多用于虛擬語氣結(jié)構(gòu)中。 1. He might have given you more help, even though he was busy. (MET90) 他或許會(huì)多給你一些幫助，即使他很忙。2. She might have ac

5、hieved greater progress, if you had given her more chances. 如果你多給她點(diǎn)機(jī)會(huì)，她可能已經(jīng)取得更大的成績。七、 “would have done” 虛擬語氣，表示對(duì)過去事情的假設(shè)，意思是“本來會(huì)做”。1. I would have told you all about the boys story, but you didnt ask me. 我本來會(huì)告訴你這個(gè)小男孩的故事，但是你沒有問我。2. Without your help, I wouldnt have achieved so much. 沒有你的幫助，我是不會(huì)取得如此大的成

6、績。八、 “should have done”本來應(yīng)該做某事，而實(shí)際沒做否定式為“shouldnt have done”表示本來不應(yīng)該做某事，而實(shí)際做了。含有指責(zé)對(duì)方或自責(zé)的含意。 1. Tom, you are too lazy. The work should have been finished yesterday. 湯姆，你太懶惰了，這項(xiàng)工作本來應(yīng)該昨天就做完的。2. Look, Tom is crying. I shouldnt have been so harsh on him. 看，湯姆哭了，我本來不應(yīng)該對(duì)他如此嚴(yán)厲。九、 “ought to have done” 表示過去應(yīng)該做

7、而實(shí)際并沒有做，譯成“理應(yīng)做”，往往表示遺憾。與“should+have+done”用法基本一樣。 I ought to have gone home last Sunday. 我理應(yīng)上星期日回家。You ought not to have given him more help. 你不應(yīng)該幫助他那么多。十、 “need have done” 本來需要做某事而沒有做否定式為 “neednt have done” 表示“本來不需要做某事而做了”。I neednt have bought so much wineonly five people came. 我本來沒有必要買這么多酒，只來了五個(gè)人。

8、He need have hurried to the station. In that case, be wouldnt have missed the train. 他本來需要快點(diǎn)去車站，那樣的話，他就不會(huì)誤了火車。1-You didnt wait for Mr. Smith last night, did you? -Actually,we _. He didnt return home at all.A. couldnt have waited B. neednt have waitedC. didnt need towait D. should wait2Harry _ have w

9、on the Physics competition easily yesterday, but he gave up.A. could B. might C. should D. must 3-May I speak to your manager Mr. Smith at six oclock tonight ?” -“Im sorry, Mr. Smith to a conference before then.”A. will have gone B. had gone C. would have goneD. has gone4-Tom took away our teachers

10、cell phone without being permitted.- Really? I cant imagine that he _ have done such a thing.A. must B. may C. can D. should 5- Was it you that made the suggestion?- It have been. I cant remember.A. need B. must C. shouldD. may6The weather turned out to be fine yesterday. I_ the trouble to carry my

11、umbrella with me .A. should have taken B. could have takenC. neednt have taken D. mustnt have taken 7He paid for a seat, when he _ have entered free.A. could B. wouldC. mustD. need8I didnt see her in the meeting room this morning. She at the meeting .A. mustnt have spoken B. mightnt have spokenC. ca

12、nt have spoken D. shouldnt have spoken 9- Hi, is that Peter Brown?-Sorry. You _ the wrong number .A. must call B. must have called C. should call D. should have called10I was on the highway when this car went past followed by a police car . They _ at least 150 kilometers an hour .A. should have been

13、 doing B. must have been doingC. could have done D. would have done 11. He is not poor. You _ have lent him the money.A. cant B. neednt C. couldnt D. mustnt12. There was plenty of time. You _ have hurried.A. wont B. mustnt C. neednt D. couldnt13. They _ have finished the work yesterday, but it was raining hard.A. must B. could C. should D. might14. I _ here in time, but I met an old friend of mine. I stopped a