情态动词havedone用法

1、unit 1 grammarmodal verb imodal verb i 情态动词表示说话人的某种感情情态动词表示说话人的某种感情或语气，对某一动作或状态的某或语气，对某一动作或状态的某种态度。表示种态度。表示“需要、可以、必需要、可以、必须、应当须、应当”等。等。 什么是情态动词？什么是情态动词？ (modal verbs)情态动词情态动词+ have done用法用法 must have done 想必想必/准是准是/一定做了一定做了 否定式为：否定式为：cant /couldnt/+have doneit must have rained last night for the roa

2、d is quite muddy. 2.can/could have done 1.本来能够做本来能够做 2.过去可能会做过去可能会做 can he have gone to his aunt? 他有可能去她姨妈家了吗？他有可能去她姨妈家了吗？3.cannot/could not have done1.过去不可能过去不可能2.过去没能够过去没能够he cannot have forgotten it.他不可能忘了那件事。他不可能忘了那件事。3.may/might have done也许、或许已经做了也许、或许已经做了，一般只用于肯定句或，一般只用于肯定句或否定句中（在否定句中表示否定句中（在否

3、定句中表示“可能不可能不”)，不，不用于疑问句。用用于疑问句。用might表示语气更加不肯定。表示语气更加不肯定。its too late. i think he may have gone to bed.he may not have finished the work.他也许还没完成那项工作。他也许还没完成那项工作。4.should/ ought to have done本该做，而实际上未做本该做，而实际上未做you ought to have done this exercise more carefully.你本应该更仔细地做这个练习。你本应该更仔细地做这个练习。 5.should n

4、ot/ ought not to have done本不该做而做了本不该做而做了you shouldnt have told her truth.你本不该告诉她真相。你本不该告诉她真相。6.neednt have done 本不必做而做了本不必做而做了you neednt have taken a taxi here, for it was very near to my house.7. had better (not) have done 当时最好（没）做了某事当时最好（没）做了某事you had better not have scolded her.8.would rather (no

5、t) have done宁愿当时（没）做了某事宁愿当时（没）做了某事i raised objections at the meeting, but now i would rather have not done that.9.would like/love to have done过去愿意做但未做成过去愿意做但未做成i would love to have gone to the party last night, but i had to work extra hours to finish a report.昨晚我本来很想去参加聚会的，但我昨晚我本来很想去参加聚会的，但我得加班完成一个报

6、告。得加班完成一个报告。 _ i go out to play, mum? no, you _. you should do your homework first. a. might; wouldnt b. may; had better not c. must; mustnt d. need; mustnt课堂练兵课堂练兵2. where is emma? i cant say for sure where she is, but she _ be out shopping. a. can b. should c. must d. may3. the room is in a terrib

7、le mess; it _ cleaned. a. cant have been b. couldnt be c. may have been d. would be4. there _ be any difficulty about passing the road test since you have practiced a lot in the driving school. a. mustnt b. shant c. shouldnt d. neednt5. this umbrella looks like mine, but it isnt. whose _ it be? a. m

8、ust b. can c. may d. might6. may i sit beside you, sir? sorry, you _. look, my daughter is coming. a. cant b. mustnt c. neednt d. shouldnt7. peter _ be really difficult at times even though he is a nice person in general. a. shall b. should c. can d. must8. you _ be hungry already you had lunch only

9、 two hours ago! a. wouldnt b. cant c. mustnt d. neednt9. although this _ sound like a simple task, great care is needed. a. must b. may c. shall d. should10. she looks very happy. she _ have passed the exam. i guess so. its not difficult after all. a. should b. could c. must d. might11. ive taken so

10、meone elses green sweater by mistake. it _ harrys. he always wears green. a. has to be b. will be c. mustnt be d. could be1. some aspects of a pilots job _ be boring, and pilots often _ work at inconvenient hours. (2006 湖南卷湖南卷) a. can; have to b. may; can c. have to; may d. ought to; must 2. the wea

11、ther turned out to be fine yesterday. i _ the trouble to carry my umbrella with me. (2006 江西卷江西卷) a. should have taken b. could have taken c. neednt have taken d. mustnt have taken3. hows your tour around the north lake? is it beautiful? it _ be, but it is now heavily polluted. (2007 全国全国i卷卷) a. wil

12、l b. would c. should d. must 4. i told your friend how to get to the hotel, but perhaps i _ have driven her there. (2007 陕西卷陕西卷) a. could b. must c. night d. should5. she looks very happy. she _ have passed the exam. i guess so. its not difficult after all. (2007 江苏卷江苏卷) a. should b. could c. must d

13、. might6. where is my dictionary? i remember i put it here yesterday. you _ it in the wrong place. (2007 江西卷江西卷) a. must put b. should have put c. might put d. might have put7. according to the air traffic rules, you _ switch off your mobile phone boarding. (2008 上海卷上海卷) a. may b. can c. would d. sh

14、ould8. although this _ sound like a simple task, great care is needed. (2008 四川卷四川卷) a. must b. may c. shall d. should9. thank you for all your hard work last week. i dont think we _ it without you. (2008 山东卷山东卷) a. can manage b. could have managed c. could manage d. can have managed10. but for thei

15、r help, we _ the program in time. (2009 安徽卷安徽卷) a. can not finish b. will not finish c. had not finished d. could not have finished11. the doctor recommended that you _ swim after eating a large meal. (2009 浙江卷浙江卷) a. wouldnt b. couldnt c. neednt d. shouldnt 12. its the office! so you _ know eating

16、is not allowed here. oh, sorry. (2009 湖南卷湖南卷) a. must b. will c. may d. need13. the traffic is heavy this day. i _ arrive a bit late, so could you save me a place? (2009 辽宁卷辽宁卷) a. can b. must c. need d. might 14. just be patient. you_ except the world to change so soon. (2010 全国全国i卷卷) a. cant b. neednt c. may not d. will not15. i havent got the reference book yet, but ill have a test on the subject next month. dont worry. you _ have it by friday. (2010 江苏卷江苏卷) a. could b. shall c. must d.