高考情态动词复习(学生版).doc

高考情态动词复习(学生版) 情态动词的基本用法特点 1） 情态动词不能表示正在发生或已经发生的事情，只表示期待或估计某事的发生。 2） 情态动词 除 ought 和 have 外，后面只能接不带to 的不定式。 3） 情态动词没有人称，数的变化，即情态动词第三人称单数不加-s。 4） 情态动词没有非谓语形式，即没有不定式，分词，等形式。1. A computer ______ think for itself; it must be told what to do. A. can’t B. couldn’t C. may not D. might not 2. The fire spread through the hotel very quickly but everyone ______ get out. A. had to B. would C. could D. was able to 3. They will ______ run this machine on their own in three months. A. can B. could C. may D. be able to 表示许可: may / might, can / could * might, could 比较委婉, 一般多用于疑问句. * can, may 表达的语言比较随便. * 在以could, might 表示征询对方意见或表示请求时，回答应相应使用can, may. 5. — Could I borrow your dictionary? — Yes, of course you _______. A. might B. will C. can D. should 6. — Might I watch TV after supper? — Yes, you ________. A. may B. must C. might D. can 2. 表示否定的情态动词的用法: mustn’t 不准, 禁止 needn’t 没必要 ( = don’t have to ) can’t 不能; 不可能 may not 不可以; 可能不 shouldn’t 不应该 ( = ought not to ) won’t/ wouldn’t 不愿意 daren’t 不敢 ? can/may/must/need 问句的回答方式 疑问句式 肯定句式 否定句式 Can/Could you do sth. Yes, I/we/can/could No, I we can’t/ couldn’t May I do sth.? Yes , you may. No ,you mustn’t/may not. Must I /we do sth.? Yes, you must No you needn’t/don’t have to. Need I do sth.? Yes ,you must No, you needn’t/don’t have to. 7. You ______ return the book now. You can keep it till next week if you like. A. can’t B. mustn’t C. needn’t D. may not 8. Johnny, you ______ play with the knife, you ______ hurt yourself. A. won’t ; can’t B. mustn’t ; may C. shouldn’t ; must D. can’t ; shouldn’t 9. --Will you stay for lunch? ---Sorry, _____. My brother is coming to see me. A. I mustn’t B. I can’t C. I needn’t D. I won’t 10. ---May I pick a flower in the garden? --- ________. A. No, you needn’t B. Not, please. C. No, you mustn’t D. No,