Unit 5 The Value of Money 第3课时 Discovering useful structures 情态动词和过去将来时（教学课件）-【上好课】2022-2023学年高一英语同步备课系列(人教版2019必修第三册）

The Value of Money Unit 5 Period 3 Discovering useful structures What does Francis Bacon’s saying mean in Chinese? 金钱是善仆，也是恶主 Learning objectives 1. To learn about the different functions of modal verbs. 2. To be able to talk about future events in the past using “would do” and “was / were going to do”. 3 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? Read the sentences below and think about: What are the functions and meanings of these modal verbs? A. necessity B. possibility C. obligation D. request E. advice F. intention The functions of modal verbs 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 表义务性 request 表请求或指示 advice 表建议 intention 表意图和愿望 A. necessity B. possibility C. obligation D. request E. advice F. intention 6 1. You needn’t try it if you don’t want to. 2. The man can speak two foreign languages. 3. The poor boy had to face the problem bravely. 情态动词_______独立作谓语，只能和_________一起构成谓语，没有数的变化，具有助动词功能。 情态动词的定义 不能 情态动词 (Modal verb) 情感 & 态度 动词原形 may / might must / have to shall / should will / would ought to need / dare can / could Mindmap of the modal verbs modal verbs 8 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 shall/should, will/would have to, used to can & could 情态动词的用法 (1) 表能力，“能，会” She can speak English. She could play the piano at the age of three. be able to能用于各种时态；can/could只能表示现在或过去的能力。was/were able to“设法做成某事”相当于managed to do sth// succeeded in doing sth All the peo