(
课件网) Unit 5 The Value of Money Discovering useful structures: Express modality and talk about future events in the past 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”. Lead-in Reread the passage and pay attention to the usage of the bold words. They are called modal verbs. They are used to express ability, obligation, possibility, intension, request, advice, etc. Lead-in How many modal verbs do you know And what are they may / might must / have to shall / should will / would ought to need / dare can / could Mind map of the modal verbs modal verbs Lead-in The function of modal verbs Modal verbs have many functions as follow: A. necessity B. possibility C. obligation D. request E. advice F. intention 需要 可能 职责/义务 要求 建议 意图 Can you give examples of each function Find modal verbs in previous sections and discuss their functions. Lead-in The function of modal verbs A. necessity 表示必要性 You have to read between the lines because the real messages are often hidden… B. possibility 表示可能和推测 It may seem lucky to you. C. obligation 表义务性 Astronauts must wear spacesuits when they work in space because… Lead-in The function of modal verbs D. request 表示提出请求或发出指示 May we ask what you’re doing in this country E advice 表示提出建议 You’d better not open it. F. intention 表示意图和愿望 What would you do if you were in her situation Presentation The function of modal verbs We use modal verbs to talk about A. ability or will（能力或意愿） B. prohibition（禁止） C. making suggestions（建议） D. certainty or inference（可能性或推断） E. politeness or euphemism（客气或委婉） F. obligations or expectations（义务或预期） Presentation The exercises of modal verbs 1. Oliver believes that with a million pound bank note a man could live a month in London. ( ) 2. Young man, would you step inside a moment, please？( ) 3. May we ask what you’re doing in this country and what your plans are ( ) 4. Well, I can’t say that I have any plans.( ) 5. Well, you mustn’t worry about that. ( ) 6. You mustn’t think we don’t care about you. ( ) 7. Well, it may seem lucky to you but not to me! ( ) 8. Now if you’ll excuse me, I ought to be on my way. ( ) 9. Oh, no, you’d better not open it. ( ) 能力或意愿 客气或委婉 客气或委婉 能力或意愿 禁止 禁止 可能性或推断 义务或预期 建议 Grammar The modal verbs 情态动词 1. 情态动词有一定的意义，表示或暗示某种情绪或态度，表示可能、建议、愿望、必要、允许、能力等。 大多数情态动词有多个意义。 2. 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，一起构成谓语动词。 Grammar The modal verbs 情态动词 只用作情态动词的: can/could, may/might, ought to, must 可用作情态动词也可用作实义动词的: need, dare 可用作情态动词也可用作助动词的: shall/should, will/would 相当于情态动词的: have to, u ... ...
