ModelVerbs说课.ppt

Model Verbs 基本概念 一、情态动词的基本用法 can / could 2. may / might 3. must 4. will / would 5. need 6. dare 7. shall 8. should 二、常用情态动词的用法比较 can与be able to 2. must与have to 3. would与used to 三、“情态动词+have done”的用法 must have done 2. may / might have done 3. should (ought to) have done 4. can (could) have done 5. needn’t have done John, look at the time. _____ you play the piano at such a late hour? A. Must B. Can C. May D. Need --- What does the sign over there read? --- “No person ________ smoke in this area.” A．will B．may C．shall D. must It’s terrible. The car ________ break down just as we were going on our holiday. A. should B. would C. could D. must Even though I had my leg hurt, I _____ finish the whole distance. A. could B. had to C. might D. was able to 表示对过去的一种肯定推测，意为“肯定” “一定”。仅用于肯定句。 The ground is wet. It must have rained last night. 地面是潮湿的，昨晚一定下过雨。 表示对已经发生的事情把握性不太大的肯定推测，相当于“大概”“可能”。 He may / might have been hurt in the car accident. 他可能在这起车祸中受了伤。 在肯定句中表示过去没有发生但却应该发生的事；在否定句中表示过去发生了本不应该发生的事。 You should have read that book. 你本该读那本书的。 They shouldn’t have given him so much money. 他们本不应该给他这么多钱。 用来对过去可能发生的事情进行猜测，多用于疑问句和否定句中。could have done 还可表示本来可以做但却没有做。 He can’t have gone to Shanghai. I saw him only a while ago. 他不可能到上海去了。我刚才还看见他呢。 My mother came here by bus, but she could have taken a taxi. 我妈妈坐公交车来的，但她本可以打车来的。 表示不必要做的事情却做了。 You needn’t have bought that dictionary. 你本没有必要买那本词典。 The biggest problem for most plants, which ________ just get up and run away when threatened, is that animals like to eat them. A. shan’t B. can’t C. needn’t D. mustn’t It is usually warm in my hometown in March, but it _____ be rather cold sometime. A. must B. can C. should D. would --- Excuse me. Is this the right way to the Summer Palace? --- Sorry, I am not sure, but it ____be. A. might B will C. must D. can You ____be tired--