2021版外研版必修二英语Unit 2 Using language P17 ppt课件.pptx

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1、Using language P17 新外研新外研必修必修Book 2 Unit 2 Lets celebrate! He may be in his office. Where is Bob? What was the matter with the lady yesterday? Read the photos and sentenses below and make inferences. She might be ill yesterday. Leading-in This restaurant must be very good. Its always full of people.

2、 That restaurant cant be very good. Its always empty. Which restaurant is better? He called me yesterday evening, but I didnt hear it. I must have been asleep. Look at the sentences from the reading passage and answer the questions. a. That is why letters from Father Christmas could be the perfect b

3、ook. b. The children must have been very excited as they opened it. c. .they might not receive their presents if they were not good. 1. What do the words in bold indicate: an order, a request, ability or possibility? The words in bold indicate possibility. Presentation 2. Will the meaning of sentenc

4、e (a) change if we replace “could” with must or “might”? If we replace could with must, the meaning of sentence (a) will change. It means the speaker is quite sure about the statement. If we replace could with might, the meaning of sentence (a) will remain more or less the same. Could and might in a

5、ffirmative sentences have a similar meaning when indicating possibility. 3. What happens if we change “must” and “might” in sentences(b) and (c) into “could”? If we change “must” in sentence (b) into “could”, it means the speaker is not sure about the statement, and its only a possibility. If we cha

6、nge “might” in sentence (c) into “could”, it means its impossible for the children to receive their presents. Now look for more sentences with Now look for more sentences with modalsmodals in the reading passagein the reading passage. . 情态动词表推测 must, can, could, may, might 情态动词中:can, could, may, mig

7、ht, must 都可表示推测。 两种句式: 情态动词情态动词+ +动词原形动词原形 情态动词情态动词+ +完成式完成式 (表示对目前的动作或状态进行推测) (表示对已发生情况的推测) must 1. must 表示推测时,表示推测时, 只能用于只能用于肯定句肯定句。 你努力学了一整天,一定累了吧。 You have worked hard all day. You must be tired. must , can/could, may/might 的用法的用法 这个电脑肯定出了问题。 There must be something wrong with the computer. e.g.

8、 2. must + have done 表示对表示对过去发生的事情过去发生的事情 作出的肯定判断作出的肯定判断 路是湿的。昨天晚上一定下雨了。 The road is wet. It must have rained last night. 他们在玩篮球, 他们一定完成了作业。 They are playing basketball, they must have finished their homework. e.g. 1. can /could 用于否定句或疑问句用于否定句或疑问句中表示说中表示说 话人对发生的事情的怀疑、猜测、不肯定的话人对发生的事情的怀疑、猜测、不肯定的 语气。语气

9、。 这个人不可能是玛丽, 她生病了。 It cant be Mary. She has fallen ill. can/could 他一定不在家。 He cant be at home. *could比can语气更弱。 2. can/could have done对对过去发生过去发生行为的行为的 可能性进行推测可能性进行推测: : 刚才我还看见他了,所以他不可能出国的。 I saw him just now so he couldnt have gone abroad. 门是锁着的,所以她不可能在家。 The door was locked. She couldnt have been at

10、home. e.g. 3. can/could have done 用于用于肯定句肯定句中,表中,表 示示“本可以,本来可能已经本可以,本来可能已经”,表示对过去,表示对过去 发生的事情做出的判断。发生的事情做出的判断。 你本来可以考的更好。 You could have had a better mark. 1. may/might表示推测时,只能用于表示推测时,只能用于陈述句陈述句, 表示认为某一事情或许可能发生表示认为某一事情或许可能发生。用用might 指现在的时候语气较为委婉客气或更加不指现在的时候语气较为委婉客气或更加不 肯定肯定。 may/might They may be st

11、ill waiting for us. I asked him if I might leave. 他们可能还在等我们呢。 我问他我是否可以离开。 她们明天可能会到这里来。 They may come here tomorrow. e.g. 2. might/may have done,表示对表示对过去发生过去发生的的 动作进行可能性推测。动作进行可能性推测。 他可能去医务室了。 He may have gone to the clinic. 他可能已经从报纸上知道这个消息了。 He might have read about the news in the newspaper. Read t

12、he dialogue and answer the questions. (At a fancy dress party.) Chris: I spent ages putting up all the balloons and flowers last night. Jean: I expect you are feeling tired now! Chris: Yes, I am. Look, that guy is dressed as Batman. Is that Mike? Jean: Its possibly him. Check out that girl over ther

13、e. Im sure thats Lucy. Chris: No, I dont think thats Lucy. Lucy isnt that tall. Jean: Look at those two guys dressed as chickens! Oh, theyre waving at us! Maybe theyre from our school. Chris: Lets go and find out. Practice 1. Why dont Chris and Jean recognize their friends? 2. Who is dressed as Batm

14、an? Because their frinends wear the fancy dress. Maybe Mike is dressed as Batman. Rewrite the underlined sentences in the conversation using can /could, may / might and must. You must be tired now! It may / might / could be him. That must be lucy. That cant be Lucy. They may / might / could be from

15、our school. 1. I dont know where she is, she _ be in Wuhan. 2. The road is wet. It _(rain) last night. 3. Philip _(be hurt) seriously in the car accident. 4. -Linda has gone to work, but her bicycle is still here. -She _ (go) by bus. 5. Mike _(find) his car, for he came to work by bus this morning.

16、may must have rained may (might) have been hurt may (might) have gone cant have found 根据句意,用情态动词的正确形式填空。根据句意,用情态动词的正确形式填空。 Have you heard of “Black Friday” ? Black Friday is one of the busiest shopping days of the year. Stores have big sales and open their doors very early. Production Look at the ab

17、ove picture and make as many sentences as possible using can I could, may I might and must. The woman in red must be very excited to buy so many things. The man with a wallet in his hand might be a bit reluctant to pay. The woman with glasses may be very tired to get up so early and carry so many bags. The cashier might be feeling uncomfortable as he is sweating a lot. . Thank you!

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