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(共17张PPT)
Discovering useful structures
Unit 5 The Value of Money
Learning objectives
1. To identify the different functions of modal verbs.
2. To talk about future events in the past using “would do” and “was / were going to do”.
Modal verbs
情态动词
Leading-in
May we ask what you're doing in this country and what your plans are
I can't say that I have any plans.
You mustn't worry about that.
Could you offer me work here
Look at the words in red. What kind of words are they
Why does the speak use this words
modal verbs
Summary: The function of modal verbs is to express modality (feelings and attitude).
may / might
must / have to
shall / should
will / would
ought to
need / dare
can / could
What modal verbs do you know
modal verbs
1.只作情态动词的：
2. 可情态可实义的：
3. 可情态可助动词的:
4. 相当于情态动词的:
情态动词的分类
can/could, may/might, ought to, must
need, dare/dared
will/would，shall/should,
have to, used to，had better，used to
情态动词有一定的意义， 大多数情态动词有多个意义。
necessity 必要性 possibility可能性 obligation责任义务
request请求 advice建议 intention意图
情态动词没有人称和数的变化，即不随主语的不同而变化。
3. 情态动词不能独立使用，须后接动词原形，一起构成谓语。
情态动词的定义
情态动词 (Modal verb)
What kind of feelings or attitude is expressed
You have to read between the lines because the real messages are often hidden…
It may seem lucky to you.
Astronauts must wear spacesuits when they work in space because…
May we ask what you’re doing in this country
You should/ought to/had better go to class right away.
What would you do if you were in her situation
necessity 表必要性
possibility 表可能和推测
obligation 表责任义务性
request 表请求或指示
advice 表建议
intention 表意图和愿望
Functions modal words: A. necessity B. possibility C. obligation
D. request E. advice F. intention
Analyze what the modal verbs express.
1. Henry must be an American.
2. Henry can be an American.
3. Henry could be an American.
4. Henry may be an American.
5. Henry might be an American.
Possibility
Modal verbs used to express possibility: must, can, could, may, might
Degree of possibility
High
Low
Analyze what the modal verbs express.
1. You must come at once.
2. We have to wear uniforms at school.
3. I ought to be on my way.
Necessity & Obligation
Modal verbs used to express necessity & obligation: must, have to, ought to
除了上述结构，be going to、be about to等结构也用在过去将来时中，如：
They were going to find someone to take part m their bet when they saw Henry walking on the street outside.
他们正准备找一个人來参与他们的赌局。这时，他们看到亨利走在外面的大街上。
Mrs Thomson was about to sit down to watch the opera when her phone rang.
场姆森夫人刚要坐下看 剧的时候，她的电话响了。
Learn
Learn
3. Both would do” and was/were going to do can be used to talk about future events or intentions in the plete the following sentences that describe the future using either form of the given verbs.
1. Philip bought two tickets for The Phantom of the Opera. He _____ (watch) this musical with his girlfriend on the weekend.
2. I was so surprised at the news that David _____ (play) the role of the dinosaur in the play that I gave him a hug out of joy.
3. Lily decided that she ______ (settle) in New York and pursue her dream of becoming an actress.
4. Hey, Timmy. I _____ (call) you. Out now that you are here, I don’t have to
5. The competition was so close that no one was sure who ____ (win) the Gest
Actor award.
6. Jim is not here right now. He sad he ____(be) on duty at the library this
afternoon.
Learn
4. Work in pairs. Discuss the scene from The Million Pound Bank Note on page 52 and share your understanding of the story. Use modal verbs when necessary. The example below may help you.
EXAMPLE
A: I think it’s kind of Roderick and Oliver to give Henry the money.
B: I’m afraid I disagree. They shouldn’t be making a bet on him.
A: But Henry might get into trouble if they didn’t offer him the money.
B: Well, if they really wanted to help Henry, they could offer him a job.
A: Maybe you’re right. But I guess that would be a different story.
Work in pair
Summary
Phrases
Words
Phrases: be about to do sth; in case; ought to do
Words: intention；extent；patience；postpone；indicate
预习 Unit 5-Listening and Talking.
3
1
Recite new words and phrases.
2
Review the use of model verbs and future events in the past.
Homework
THANKS

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