情态动词表推测.pptx

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1、mustmay/mightcan/couldmustmay/mightcan/couldS1: Whos the man over there?S2: That tall one? Oh, he _ be our Chinese teacher.S1: But that man is much fatter. He _ be the Chinese teacher.S2:Then he _ be our Chemistry teacher, but Im not sure.S1: _ he be our Maths teacher?S2: No. (The man comes closer.)

2、S1&S2: Oh, it _ the Biology teacher.must cantcouldntmay/mightCan/Couldismustmay/mightcan/could肯定句肯定句否定句、疑问句否定句、疑问句不确信不确信肯定句、否定句肯定句、否定句很确定、很确定、有把握有把握肯定、准是肯定、准是也许、也许、有可能有可能肯定不会肯定不会很确定、很确定、有把握有把握情态动词情态动词+do 对现在或将来的情对现在或将来的情 况、状态进行猜测况、状态进行猜测情态动词情态动词+be doing What happened to her?情态动词情态动词+have done modal

3、 v.modal v.构成构成意义意义mustmaymightcancould对正在进行的情况+ be doing sth.肯定/可能正在做某事 对过去的情况+ have done sth.肯定/可能做过某事肯肯肯肯/否否否否/疑疑1. -Are you coming to Jeffs party? -Im not sure. I _ go to the concert instead. A. must B. would C. should D. might2. It_ be the vocabulary that caused you the problem in the exercise

4、because you know a lot of words. A. may B. should C. couldnt D. neednt3. Who _ it be that stole my pen? A. could B. might C. must D. may 4. I didnt hear the phone. I _ asleep. A. must be B. must have been C. should be D. should have beenChoose the best one Fill in the blanks 1. Why are your eyes so

5、red? You _ well last night. (sleep) Yeah, I stayed up late writing a report.2. Hi, Tom. Any idea where Jane is? She _ in the classroom. I saw her there just now. (be)3. I dont really like James. Why did you invite him? Dont worry. He_. He said it wasnt certain what his plans were. (come)cant / could

6、nt have sleptmust bemay / might not comeFill in the blanks 4. We _ table tennis at nine tomorrow, but Im not so sure. (play)5. Bob is already 20 minutes late. What _ to him? (happen)6. The woman scientist has stayed in Africa studying animals for 13 years. She _ through a lot of difficulties. (go)ma

7、y/might be playingcan/could have happenedmust have gone第一PPT模板网，时尚PPT模板下载 The winner of the race is a tall and thin boy with thick glasses. Then it mightnt be my friend Mike, who looks like a ball and has a good eyesight.2. It mustnt be the postman at the door. Its only six oclock. 3. I have never s

8、een such a book. Whose book may it be?4. I didnt see Mary at the meeting yesterday. She might have a cold, I guess.5. I saw him repairing his bike a minute ago. He cant read in the library at the moment. Correct the sentences （mightnt 改成cant）(mustnt改成cant/couldnt/may not/mightnt) (may改成can/could) (m

9、ight have had a cold)(cant be reading)Read the following sentences and tell the usage of the underlined parts:1. Its usually warm in the south, but it can be very cold sometimes.2. “Hi, Mum! Im on the bus. I should be home in about ten minutes.”3. He did not regret saying what he did but still felt

10、that he could have expressed it differently. She might have achieved greater progress, but she was too lazy. can can 表可能表可能性，也可性，也可用于用于肯定句，意为肯定句，意为“有时可能有时可能、有时也会有时也会”；Read the following sentences and tell the usage of the underlined parts:1. Its usually warm in the south, but it can be very cold som

11、etimes.2. “Hi, Mum! Im on the bus. I should be home in about ten minutes.”3. He did not regret saying what he did but still felt that he could have expressed it differently. She might have achieved greater progress, but she was too lazy. should should 用于推测，用于推测，表表示按示按常规、常理的推测，即常规、常理的推测，即“（正常情况下）理当，（

12、正常情况下）理当，按理应该按理应该”。Read the following sentences and tell the usage of the underlined parts:1. Its usually warm in the south, but it can be very cold sometimes.2. “Hi, Mum! Im on the bus. I should be home in about ten minutes.”3. He did not regret saying what he did but still felt that he could have

13、expressed it differently. She might have achieved greater progress, but she was too lazy. 情态动词情态动词+have done+have done还可还可用于对过去已经发生的事用于对过去已经发生的事情不相符的说法（虚拟语情不相符的说法（虚拟语气）。气）。功能功能构成构成意义意义对对过去过去的的虚拟虚拟；表后悔、表后悔、责备或责备或遗憾遗憾过去本来能做某事过去本来能做某事过去本来过去本来可能可能做做某事某事过去本来应做某事过去本来应做某事过去没有必要做某事过去没有必要做某事宁愿当时做了宁愿当时做了某事某事c

14、ould have done sth.could have done sth.might have done sth.might have done sth.should/ought to have should/ought to have done sth.done sth.neednt have done sth.neednt have done sth.would rather have would rather have done sth.done sth.1. 在他本可以享受安逸的城市生活的时候，他选择了到贵州省的山区教书。2. 我真不该看那部电影的它会使我做噩梦的。3. 尽管那时你

15、很忙，你还是有可能给他更多帮助的。 I shouldnt / oughtnt to have watched that movie Itll give me horrible dreams. You might have given him more help, though you were busy at that time.He chose to teach in a mountainous area of GuiZhou Province when he could have enjoyed an easy city life. 4. 史密斯先生不可能去北京了，我刚才还在图书馆见过他。5，昨晚一定下雨了，因为地面还是湿的。6.哦，我忘了鸡肉！去看看，一定是烧着了！ Mr. Smith cant have gone to Beijing, for I saw him in the library just now.Oh, I forgot about the chicken! Go and have a look. It must be burning! It must have rained last night, for the ground is wet.