牛津高中英语模块四第二单元Sports event1

答案C.could表示委婉的语气，并不为时态。答语中of course，表示肯定的语气，允许某人做某事时，用can和 may来表达，不能用could或might。复习： will 与you连用，用来提出要求或下命令。should与you 连用，用来提出劝告。 2）---Shall I tell John about it?

---No, you ___. I've told him already.

A. needn't B. wouldn't C. mustn't D. shouldn't

答案A。needn't 不必，不用。 wouldn't 将不, 不会的。 mustn't 禁止、不能。 shouldn't 不应该。本题为不需要，不必的意思，应用needn't。 3）---Don't forget to come to my birthday party tomorrow. ---______.

A. I don't B. I won't C. I can't D. I haven't

答案B. will既可当作情态动词，表请求、建议、也可作为实义动词表\意愿、意志、决心\，本题表示决心，选B。 13 带to 的情态动词

带to 的情态动词有四个：ought to, have to, used to, be to, 如加上have got to ,(=must), be able to，为六个。它们的疑问，否定形式应予以注意： Do they have to pay their bill before the end of the month? She didn't use to play tennis before she was fourteen. You ought not to have told her all about it. Ought he to see a heart specialist at once.?

ought to 本身作为情态动词使用。其他的词作为实义动词使用，变疑问，否定时，须有do 等助动词协助。 典型例题

Tom ought not to ___ me your secret, but he meant no harm. A.have told B.tell C.be telling D. having told

答案A。由于后句为过去时，告诉秘密的动作又发生在其前因，此地应用过去完成时，但它在情态动词 ought to 后，所以用 have。 14 比较need和dare

这两词既可做实义动词用，又可做情态动词用。作为情态动词，两者都只能用于疑问句，否定句和条件句。 need 作实义动词时后面的不定式必须带to，而dare作实义动词用时, 后面的to 时常可以被省略。

1) 实义动词： need （需要, 要求） need + n. / to do sth

2) 情态动词： need，只用原形need后加do，否定形式为need not。 Need you go yet?

Yes, I must. / No, I needn't.

3) need 的被动含义：need, want, require, worth（形容词）后面接doing也可以表示被动： need doing = need to be done

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