2021版外研版必修二英语Unit 2 Let’s celebrate Grammar Modals ppt课件.pptx

1、Unit 2 Lets celebrate! Starting out Black Friday is one of the busiest shopping days of the year. Stores have bigh sales and open their doors very early. Lead in Look at the picture and make as many sentences as possible using can / could, may / might and must. Example: The woman in red must be very

2、 excited. The man with a wallet in his hand might be a bit reluctant to pay. The woman with glasses may be very tired to getup so early and carry so many bags. The cashier might be feeling uncomfortable as he is sweating a lot. Lead in Activity 1 Revision a That is why Letter from Father Christmas c

3、ould be the perfect book b The children must have been very excited as they opened it. c they might not receive their presents if they were not good. Look at the sentences from the reading passage and answer the questions. What do the words in blue indicate: an order, a request, ability or possibili

4、ty? Activity 1 Revision a That is why Letter from Father Christmas could be the perfect book b The children must have been very excited as they opened it. c they might not receive their presents if they were not good. Look at the sentences from the reading passage and answer the questions. Will the

5、meaning of sentence (a) change it we replace “could” with “must”? 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

6、might in affirmative sentences have a similar meaning when indicating possibility. Activity 1 Revision a That is why Letter from Father Christmas could be the perfect book b The children must have been very excited as they opened it. c they might not receive their presents if they were not good. Loo

7、k at the sentences from the reading passage and answer the questions. What happens if we change “must”and “might” in sentence (b) and (c) into “could”? If we changemust in sentence (b) into “could, it means the speaker is not sure about the statement, and its only a possibility. If we change might i

8、n sentence (c) into could, it means its impossible for the children to receive their presents. Activity 1 Revision Now look for more sentences with modals in the text. The children must have been very excited as they opened it. The children could have been very excited as they opened it. they might

9、not receive their presents if they were not good. they could not receive their presents if they were not good. 情态动词情态动词+动词原形动词原形 1)can+动词原形动词原形 A.用于肯定句用于肯定句,表示客观可能性表示客观可能性,意为意为“可能可能”,即从理论上看是可能的即从理论上看是可能的,但不一定会发生但不一定会发生 。例如例如: As a human being, anyone can make a mistake. 作为人类作为人类,任何人都有可能犯错任何人都有可能犯错。

10、B.用于否定句或疑问句用于否定句或疑问句,表示对现在的动作或状态进行主观的猜测表示对现在的动作或状态进行主观的猜测,意为意为“可能可能”,或表示或表示 惊异惊异、怀疑等态度怀疑等态度。例如例如: a. He cant have a lot of money. 他不可能有很多钱他不可能有很多钱。 b Can it be that it was l, not he, who was mistaken? 难道是我弄错了难道是我弄错了,而不是他弄错了而不是他弄错了? 情态动词表推测的具体用法情态动词表推测的具体用法 Activity 1 Summary 情态动词情态动词+动词原形动词原形 2)may+

11、动词原形动词原形,表示主观的推测表示主观的推测,意为意为“或许或许”,用于肯定句和否定句均可用于肯定句和否定句均可。例如例如: a. He may be very busy now. 他现在可能很忙他现在可能很忙。 b. He may not be at home. 他可能不在家他可能不在家。 注意注意:表示可能性时表示可能性时,cant语气较强语气较强,表示表示“不可能不可能”; may not语气较弱语气较弱;表示表示“可能不可能不,或许不或许不 ”。 3) might+动词原形动词原形,表示推测表示推测,意为意为“可能可能,可以指过去的情况可以指过去的情况,也可以指现在的情况也可以指现在

12、的情况,但语但语 气比气比may更加不肯定更加不肯定。用于肯定句或否定句均可用于肯定句或否定句均可。例如例如: a. They might have a lot of work to do now but Im not sure. 他们现在可能有很多活儿要干他们现在可能有很多活儿要干,不过我不确定不过我不确定。 b. She was afraid they might not like the idea. 她担心他们可能不喜欢这个想法她担心他们可能不喜欢这个想法。 情态动词表推测的具体用法情态动词表推测的具体用法 Activity 1 Summary 情态动词情态动词+动词原形动词原形 4)c

13、ould+动词原形动词原形,意为意为“可能可能”,可以指过去的情况可以指过去的情况,也可以指现在的情况也可以指现在的情况,语气缓和语气缓和。多多 用于否定句或疑问句用于否定句或疑问句。例如：例如： a. He looks young. He couldnt be over 50. 他看起来很年轻他看起来很年轻,不可能超过不可能超过50岁岁。 b. Could it be true? 那可能是真的吗那可能是真的吗? 5)must+动词原形动词原形,表示猜测表示猜测,意为意为“准是准是,一定一定”,通常用于肯定句通常用于肯定句。例如：例如： a. This must be your room. 这

14、一定是你的房间这一定是你的房间。 b Look at his new car. He must have a lot of money. 瞧他那辆新车瞧他那辆新车。他肯定很有钱他肯定很有钱。 情态动词表推测的具体用法情态动词表推测的具体用法 Activity 1 Summary 情态动词情态动词+完成式完成式 1)must+完成式完成式,表示对已发生情况的推测表示对已发生情况的推测,通常用于肯定句通常用于肯定句。例如例如: She must have gone home. 她肯定已经回家了她肯定已经回家了。 2)can+完成式完成式,表示对已发生情况的推测表示对已发生情况的推测,主要用于否定句

15、或疑问句主要用于否定句或疑问句。 例如：例如： a. You cant have forgotten her. 你不可能已经忘记她了你不可能已经忘记她了。 b. Where can she have put it? 她到底把它放在哪儿了呢她到底把它放在哪儿了呢? 情态动词表推测的具体用法情态动词表推测的具体用法 Activity 1 Summary 情态动词情态动词+完成式完成式 3) could+完成式完成式,表示对过去情况的推测表示对过去情况的推测,多用于否定句或疑问句多用于否定句或疑问句。 例如：例如： a. He could not have been more than 16 at

16、that time. 他当时不可能超过他当时不可能超过16岁岁。 b Could she have forgotten my address? 她会忘记我的地址吗她会忘记我的地址吗? 4)may/ might+完成式完成式,表示对已发生事情的不肯定的推测表示对已发生事情的不肯定的推测,mght相比相比may语气更加不语气更加不 肯定肯定。 例如：例如： He may / might have come by train. 他可能是坐火车来的他可能是坐火车来的。 情态动词表推测的具体用法情态动词表推测的具体用法 Activity 1 Summary Activity 2 Practice (At

17、 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 there. Im sure thats Lucy. Chris: No, I dont

18、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. Activity 4 Reading Lantern Festival celebrations Underline the words and expressions about celebrations during the Lantern Fest

19、ival in the speech bubbles and complete the mind map. Complete the mind map in groups. Activity 3 Reading a scarf a red envelope rice balls balloons posters hold a lantern fair let off fireworks hold a lantern riddles competition a dress chocolates dumplings noodles banners flowers parade have a reu

20、nion dinner Activity 5 Practice 1. Draw a mind map to collect expressions about a festival celebration. 2. Describe the festival celebration based on the mind map. To celebrate，we often drink/eat we often giveas gifts we usually decorate with we always get together we hold a(an) activity If you rece

21、ive a written invitation for formal events, which of the following would be the appropriate reply? A. Making a phone call. B. Sending a text. C. Writing a letter. Which of the following behaviors is most likely to be inappropriate when you visit somebody? A. Arriving on time. B. Arriving half an hou

22、r earlier. C. Arriving twenty minutes late. A festival invitation Activity 6 Listening Listen to the conversation and complete the sentences with the correct ending. b c f Activity 7 Listening Listen again and complete the notes. Occasion: a 1_ party When: the fourth 2_ in 3_ Where: Tonys 4_ What to

23、 eat: a 5_ with all the side dishes and homemade 6_ What to bring: some flowers or 7_ What to wear: 8_ Thanksgiving Thursday November apartment big turkey apple pie candies anything you like Activity 7 Listen again and talk about what the speakers say to extend and accept an invitation. Are you free

24、? Would you like to? Its the time to You can wear You can if you like. Id love to It sounds great! What else will we do? Do I need to? Activity 8 Work in pairs. Act out the conversation about extending and accepting an invitation. Student A: Turn to Page 81. Student B: Turn to Page 85. Activity 9 Work in pairs. Think about a similar situation and have a conversation. 1. Write down the answers to the two questions discussed. 2. Share their own ideas with the classmates. Homework