概要：13、used to, had better, would rather的用法(1)used to表示过去的习惯动作或状态，现在已不存在，在间接引语中，其形式可不变，例如：He told us he used to play foot ball when he was young. 在疑问句、否定句、否定疑问句或强调句中，可有两种形式。疑问句：Did you use to/ Used you to go to the same school as your brother? 否定句：I usedn't to / didn't use to go there. (usedn't 也可写作usen't)；否定疑问句：Usen't you to/ Didn't you use to be interested in the theatre? 强调句：I certainly used to/ did use to smoke, but it was a long time ago.；其反
语法复习十一：助动词与情态动词,标签：高中英语语法大全,http://www.85jc.com13、used to, had better, would rather的用法
(1)used to表示过去的习惯动作或状态，现在已不存在，在间接引语中，其形式可不变，例如：He told us he used to play foot ball when he was young. 在疑问句、否定句、否定疑问句或强调句中，可有两种形式。疑问句：Did you use to/ Used you to go to the same school as your brother? 否定句：I usedn't to / didn't use to go there. (usedn't 也可写作usen't)；否定疑问句：Usen't you to/ Didn't you use to be interested in the theatre? 强调句：I certainly used to/ did use to smoke, but it was a long time ago.；其反意疑问句或简略回答中，也有两种形式：She used to be very fat. didn't she?/ use(d)n't she? Did you use to play chess? Yes, I did./ Used you to get up early in the morning? Yes, I did./ used to. (2)had better意为"最好"，后接不带to的不定式，例如：---- We had better go now . ---- Yes, we had (we'd better/ we had better)./ Hadn't we better stop now? (Had we better not stop now?)/ I think I'd better be going. (用于进行时态，表"最好立即")/ You had better have done that (用于完成时态，表未完成动作) 注：had better用于同辈或小辈，对长辈不可用。(3)would rather意为"宁愿"，表选择，后接不带to的不定式，例如：I'd rather not say anything./ Would you rather work on a farm?/ ---- Wouldn't you rather stay here? ---- No, I would not. I'd rather go there. 由于would rather表选择，因 而后可接than，例如：I would rather work on a farm than in a factory. / I would rather watch TV than go to see the film/ I would rather lose a dozen cherry trees than that you should tell me one lie./ I'd rather you didn't talk about this to anyone. (句中的 'd rather不是情态动词，would 在此是表愿望的实义动词)
练习、助动词与情态动词
1. If they _________ to do this work, he might do it some other way.
A. were B. should C. will D. can
2. I was told yesterday that the company _________ me to Rome next week for a business conference.
A. should have sent B. were going to send C. should be sending D. should send
3. Let's take a walk, ________? A. will we B. don't we C. do we D. shall we
4. He was a good swimmer so he _________ swim to the river bank when the boat sank.
A. could B. might C. should D. was able to
5. I went to the doctor's yesterday, I had to wait for half an hour before he ________ see me.
A. can B. may C. might D. could
6. ---- _________ this book be yours? ---- No, it ________ not be mine. It ________ be his.
A. Can, must, may B. May, might, must C. Can, may, must D. Must, can, may
7. "We didn't see him at the lecture yesterday. " "He _________ it. "
A. mustn't attend B. can't have attended C. would have not attended D. needed have attended
8. They _________ the plane, or perhaps they have been prevented from coming for some reason.
A. can have missed B. may have missed C. can have lost D. may have lost
9. Since the ground is white, it _________ last night.
A. had snowed B. must have snowed C. must be snowing D. must have been snowing
10. You must be fifty, ________?
A. mustn't you B. needn't you C. aren't you D. mnyn't you
11. You must have seen him off yesterday, _________?
A. haven't you B. didn't you C. mustn't you D. needn't you
12. ---- That must be a mistake. ---- No .it _________ be.
A. can't B. isn't able to C. can D. was able to
13. He had known the matter before you told him, so you _________ have told it to him.
A. mustn't B. can't C. needn't D. shouldn't
14. How ________ so?
A. dare you to say B. dare you say C. do you dare say D. dare to say
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