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课件网) The Value of Money Unit 5 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”. 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. It is your job and you must do it at once. 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 possibility obligation request advice intention A. necessity B. possibility C. obligation D. request E. advice F. intention 必要性 可能性 职责/义务 要求/请求 建议 意图/愿望 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 Modal verbs 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 shall/should, will/would have to, used to 情态动词的用法 can & could She can speak English. She could play the piano at the age of three. (1) 表能力，“能，会” Can I smoke here —Could I use your computer —Yes, you can. (2) 表请求和许可，“可以”，could比can更加委婉，表示礼貌 (3) can表客观可能性，“有时候会”，用于肯定句 A wise man can sometimes make a mistake. (4) can表推测，用于疑问句、否定句。肯定句用must Can the news be true He can’t be at home because I saw him here just now. can/could与be able to的区别 1. The man can/could speak two foreign languages. 2. Yesterday I was able to get home before the heavy rain. can/could表示_____，而be able to通常表示通过努力达成的_____; can/could 主要是一般现在、一般过去时, 而be able to有较为丰富的时态变化。 习惯性具备的能力 一次性的能力 注意：was/were able to“设法做成某事”，相当于managed to do sth/ succeeded in doing sth may & might 1. 表示请求或允许，译为“可以”。might语气较委婉 (但并非表示过去)。 I wonder if I might ask you a favor You may tell him this. 2. 表示推测, 译为“可能”。might比may所表示的可能性更小。 That may/might not be true. 3. may放在句首，表示祝愿。 May God bless you! 4. may/might well (很可能); may/might as well (不妨，还是. ... ...
