英语情态动词.ppt

情态动词与高考(复习课) 一、情态动词的基本特征: 情态动词本身有词义，表示说话的语气或情态，但不能单独在句中作谓语，只能同动词原形一道构成句子谓语，它们没有人称和数的变化，大多用于所有人称。 二、常见的情态动词： can/could, be able to, may/might, must, have to, need, dare/dared, should, ought to, shall, will/would, 三、情态动词考点分布情况： ㈠、常见情态动词的基本用法： can/could：“能、会”“可以”（用于现在、过去和将来三种时态） can’t/couldn’t：“不能、不可以” be able to：“能、会”（用于多种时态） may/might：“可以（=can/could）” must：“必须、一定”（表主观看法，） have to：“必须、不得不”（表客观需要，有人称、数、时 态的变化） mustn‘t：“一定不、千万不” 表禁止之意 neednt = dont have to：“不必” 1. A computer _______ think for itself, it must be told what to do. (91) A. cant B. couldnt C. may not D. might not 2. -- Will you stay for lunch? (99) -- Sorry, ______. My brother is coming to see me. A. I mustnt B. I cant C. I neednt D. I wont 3. -- Could I borrow your dictionary? -- Yes, of course you _________. (92) A. might B. will C. can D. should 4. Johnny, you ________ play with the knife, you ________ hurt yourself. (96) A. wont; cant B. mustnt; may C. shouldnt; must D. cant; shouldnt √ √ √ √ 5. How ______ you say that you really understand the whole story if you have covered only part of the article? A. can B. must C. need D. may (2001上海) 6. A left-luggage office is a place where bags _______ be left for a short time, especially at a railway station. A. should B. can C. must D. will （2003） 7. – I don’t mind telling you what I know. (2004江苏) -- You _________. I’m not asking you for it. A. mustn’t B. may not C. can’t D. needn’t 8. Children under 12 years of age in that country _______ be under adult supervision when in a public library. （2004上海） A. must B. may C. can D. need √ √ √ √ 9. The fire spread through the hotel very quickly but everyone _______ get out. (97) A. had to B. would