1、高考资源网（） 您身边的高考专家Section Grammar情态动词have done1(教材P57)The meteorite might_have_caused(cause) a huge dust cloud.2(教材P57)The dust cloud may_have_cut(cut) off the sunlight.3(教材P57)Small animals may_have_survived(survive) by eating nuts and seeds.4(教材P57)The dinosaurs might_have_been_killed(kill) by volca
2、nic eruptions.“情态动词have done”结构一般有两个主要用法：一是表示对过去发生的动作或状态的推测，二是表示对过去发生的动作的遗憾或责备。must have done的用法must have done表示对过去发生的事情的肯定推测，意为“一定做过”，只用于肯定句中。(陕西卷)The children must have got lost in the woods; otherwise, they would have been at the lakeside camp as scheduled.孩子们一定在树林中迷路了，要不然他们已经按照计划回到湖边的营地了。can/cou
3、ld have done的用法1can/could have done多用于否定句和疑问句中，表示对过去发生事情的推测。(2016浙江卷6月)George cant have gone too far.His coffee is still warm.乔治不可能走得太远。因为他的咖啡还是热的呢。(陕西卷)My book, The House of Hades, is missing.Who could have taken it?我的书哈迪斯之屋不见了。会是谁把它拿走了呢？2could have done用于肯定句中，表示“本来能够做而没有做”。(北京卷) We could have face
4、d the difficulty together, but why didnt you tell me？我们本来可以共同面对困难，可你为什么不告诉我呢？may/might have done的用法may/might (not) have done表示对过去发生的事情的推测，意为“可能已经(没有)做过”，常用于肯定句和否定句中。might的可能性比may的还要小。(江苏卷)I left my handbag on the train, but luckily someone gave it to a railway official.我把手提包落在火车上了，但是，幸运的是，有人把它交给了铁路部
5、的一名官员。How unbelievable to get it back! I mean, someone might have stolen it.能重新找回来真是令人难以置信！我是说，有人原本可能已经偷走了它。ought to/should have done的用法1ought to/should have done表示“本来应该做，而实际没做”。(福建卷)Sorry, Mum！I failed the job interview again.对不起， 妈妈！我工作面试又失败了。Oh, its too bad.You should have made full preparations.
6、哦， 太糟糕了。你本应该做好充足的准备。2oughtnt to /shouldnt have done表示“本来不应该做，而实际做了”。Look, Tom is crying. I shouldnt have been so strict with him.看，汤姆哭了，我本来不应该对他如此严厉。neednt have done的用法neednt have done表示“本来不需要做而做了”。(天津卷)I neednt have worried before I came to the new school, for my classmates here are very friendly t
7、o me.来新学校之前我本不必担忧的，因为我在这儿的同学对我非常友好。 单句语法填空1Jerry must_have_come(come) back because the window is open.Yes，but he might_have_left(leave) it open this morning.2Mummy, I climbed to get the teddy bear from the top of the shelf.My goodness！You might_have_hurt(hurt) yourself.You mustnt do that next time!3
8、Im sorry.I shouldnt_have_shouted(not shout) at you the other day.Forget it.I was a bit out of control myself.4(江西卷)We neednt_have_bought(not buy) so much food now that Suzie wont be with us for dinner.5Thats really bad.You could_have_caught(catch) the bus if you had been in a hurry.6(湖北卷)You shouldn
9、t_have_interrupted(not interrupt)the meeting to tell me that; you could_have_come(come) to tell me afterwards.7Was it you that made the suggestion?It may/might have been.I cant remember.8Could Tom have come to visit us when we were in Qingdao?No，he couldnt have come，because he has been on business i
10、n Dalian.9(全国卷)Since nobody gave him any help, he must_have_done(do) the research on his own.10The driver who died in the accident could have_survived(survive), but he didnt wear a seat belt. 单句改错1Mr.Smith mustnt have gone to Beijing, for I saw him in the library just now.mustntcant2There is no ligh
11、t in the room.May they have gone out？MayCan3The weather turned out to be fine yesterday.I neednt have been taken the trouble to carry my umbrella with me.去掉been4You couldnt have woken me up; I dont have to go to work today.couldntneednt5We must have studied last night, but we went to the concert ins
12、tead.mustshould 语法与写作1昨晚一定下雨了，因为路面很泥泞。It must_have_rained_last_night，for the road is quite muddy.2到处找不到他们，他们可能到什么地方去呢？There is nowhere to find them.Where can_they_have_gone? 3约翰不在家，我想他可能去上学了吧。John isnt at home.I think he may/might_have_gone_to_school4本来他能够通过高考的，但是他太粗心了。He could_have_passed the Entrance Examination to the College, but he was too careless.5我真的很后悔该努力学习的时候浪费了太多时间，但现在太晚了。 I really regret wasting the hours when I should_have_studied_hard,_but it is too late.高考资源网版权所有，侵权必究！