课件24张PPT。外研版英语 必修第二册Unit 2 Let's celebrate!Period 2
Using language Revision indicate
wave
attract
decorate
request
guy
lantern
firework
riddle
dessert
competition
host
fancy
formalv.表明，显示
v.挥手，招手
v.吸引，引起……的兴趣
v.装饰，布置，美化
v./n.请求，要求
n.男子
n.灯笼
n.烟火，烟花
n.谜，谜语
n.甜食，甜点
n.比赛，竞赛
n.东道主，主人
adj.花哨的，别致的
adj.正式的 Revision1 People (have to / needn’t) eat meat every day, but many people do.
2 Most chefs (are able to / have to) cook a wide variety of dishes.
3 My mum spent hours preparing this meal, so I (needn’t / had better) finis4 Seafood makes Jessica sick, so she (dare not / had better) eat it.
5 Carl (has to / is able to) eat breakfast or he gets very hungry at schoolUnderline the correct modals
to complete the sentences.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.①What do the words in blue indicate: an order, a request, ability or 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.Look at the sentences from the reading passage and answer the questions.②Will the 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 "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.Look at the sentences from the reading passage and answer the questions.③What happens if we change “must”and “might” in sentence (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 it's only a possibility. If we change "might" in sentence (c) into "could", it means it's impossible for the children to receive their presents.Activity 1 RevisionNow 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 not receive their presents if they were not good.
… they could not receive their presents if they were not good.
…… 情态动词+动词原形
1)can+动词原形
A.用于肯定句,表示客观可能性,意为“可能”,即从理论上看是可能的,但不一定会发生。例如:
As a human being, anyone can make a mistake.
作为人类,任何人都有可能犯错。
B.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,意为“可能”,或表示惊异、怀疑等态度。例如:
a. He can't have a lot of money. 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,而不是他弄错了? 情态动词表推测的具体用法 Activity 1 Summary 情态动词+动词原形
2)may+动词原形,表示主观的推测,意为“或许”,用于肯定句和否定句均可。例如:
a. He may be very busy now. 他现在可能很忙。
b. He may not be at home. 他可能不在家。
注意:表示可能性时,can't语气较强,表示“不可能”; may not语气较弱;表示“可能不,或许不”。
3) might+动词原形,表示推测,意为“可能",可以指过去的情况,也可以指现在的情况,但语气比may更加不肯定。用于肯定句或否定句均可。例如:
a. They might have a lot of work to do now but I'm not sure.
他们现在可能有很多活儿要干,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。 情态动词表推测的具体用法 Activity 1 Summary 情态动词+动词原形
4)could+动词原形,意为“可能”,可以指过去的情况,也可以指现在的情况,语气缓和。多用于否定句或疑问句。例如：
a. He looks young. He couldn't be over 50. 他看起来很年轻,不可能超过50岁。 b. Could it be true? 那可能是真的吗?
5)must+动词原形,表示猜测,意为“准是,一定”,通常用于肯定句。例如：
a. This must be your room. 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。他肯定很有钱。情态动词表推测的具体用法 Activity 1 Summary 情态动词+完成式
1)must+完成式,表示对已发生情况的推测,通常用于肯定句。例如:
She must have gone home. 她肯定已经回家了。
2)can+完成式,表示对已发生情况的推测,主要用于否定句或疑问句。
例如：
a. You can't have forgotten her. 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? 情态动词表推测的具体用法 Activity 1 Summary 情态动词+完成式
3) could+完成式,表示对过去情况的推测,多用于否定句或疑问句。
例如：
a. He could not have been more than 16 at that time. 他当时不可能超过16岁。
b Could she have forgotten my address? 她会忘记我的地址吗?
4)may/ might+完成式,表示对已发生事情的不肯定的推测,mght相比may语气更加不肯定。
例如：
He may / might have come by train. 他可能是坐火车来的。 情态动词表推测的具体用法 Activity 1 SummaryActivity 2 Practice(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: It’s possibly him. Check out that girl over there. I’m sure that’s Lucy.Chris: No, I don’t think that’s Lucy. Lucy isn’t that tall.
Jean: Look at those two guys dressed as chickens! Oh, they’re
waving at us! Maybe they’re from our school.
Chris: Let’s go and find out.You must be tired now!It may / might / could be him.That must be that can’t be Lucy.Activity 3 PracticeLook 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 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.Activity 4 ReadingLantern Festival celebrationsUnderline the words and expressions about celebrations during the Lantern Festival in the speech bubbles and complete the mind map. Complete the mind map in groups.Activity 4 Readingflowersa scarfa red enveloperice ballsballoonspostershold a lantern fairlet off fireworkshold a lantern riddles
competitiona dresschocolatesdumplingsnoodlesbannersflowersparadehave a reunion dinnerActivity 5 Practice1. 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 give…as gifts…
we usually decorate with…
we always get together…
we hold a(an) …activity…
If you receive 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 hour earlier.
C. Arriving twenty minutes late.A festival invitation Activity 6 ListeningListen to the conversation and complete the sentences with the correct ending.bcfActivity 7 ListeningListen again and complete the notes.Occasion: a 1_________________ party
When: the fourth 2______________ in 3_______________
Where: Tony’s 4_______________
What to eat: a 5______________ with all the side dishes and homemade 6_______________
What to bring: some flowers or 7___________
What to wear: 8_________________ThanksgivingThursdayNovemberapartmentbig turkeyapple piecandiesanything you likeActivity 7Listen again and talk about what the speakers say to extend and accept an invitation.Are you free…?
Would you like to…?
It’s the time to…
You can wear…
You can… if you like.I’d love to…
It sounds great!
What else will we do?
Do I need to…?Activity 8Work 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 9Work in pairs. Think about a similar situation and have a conversation. 1)Complete Exx.4--6 in Workbook on Page 11-12.
2)Remember the new vocabularies.
3)Master the usage of the modals.Homework
