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why not的用法总结

发布时间:2022-06-16 17:09:23来源:励普网


【资料图】

  以下是小编为大家整理的why not的用法,希望能帮助大家更好地掌握why not这个词组,提高英语水平。

  why not 在口语中主要有以下用法。

  1. 表示同意或赞成,意为:好的;可以呀;为什么不可以呢。如:

  A:May I go with you? 我可以和你一起去吗?

  B:Why not? 可以呀。

  A:Let’s eat out tonight. 今晚我们出去吃吧。

  B:Yes, why not? 那好啊。

  A:I wonder if I could make a living by writing. 我不知靠写作能否维持生计。

  B:Why not? 那可以呀。

  2. 用来询问原因(有时表示一种不可理解的心情),意为:为什么;为什么不……呢。如:

  A:He isn’t going to see her off at the station. 他不准备去车站送她。   B:Why not? 为什么?

  A:You should not smoke. 你不该抽烟。   B:Why not? 为什么?

  A:Don’t touch it. 别碰它。   B:Why not? 为什么?

  A:It’s hot! You’ll burn yourself. 那是烫的,你会烫着的。

  3. 表示劝诱、建议或命令,意为:……怎么样;为什么不……呢。

  如:   Why not ask someone else? 问问别人怎么样?   Why not go there at once? 为什么不马上去呢?

  A:My girl-friend is in a bad mood. 我的女朋友情绪不好。

  B:Why not give her some flowers? 为什么不送她一些花呢?

  4. 表示坚持自己的观点、态度或做法,意为:为什么不呢。如:

  A:Are you really going to sue them? 你真的要控告他们吗?

  B:Yes, why not? 是的,为什么不呢?

  二、考查 why not 后的动词用何形式

  why not 后习惯上只接动词原形,不能接带 to 不定式或现在分词。如:

  你一脸倦容,怎么不休假呢?

  误:You’re looking tired. Why not taking a holiday?

  正:You’re looking tired. Why not take a holiday?

  何不静观其结果呢?

  误:Why not just to wait and see what happens?

  正:Why not just wait and see what happens?

  注:在一定的语境中,有时why not后可省略动词原形。

  如:

  A:Let’s meet at the station. 我们在车站见面吧。

  B:Why not at the hotel?在饭店不行吗?   句中的why not后可视为省略了动词wait。

  三、考查 why not 句式的结构形式

  why not 后习惯上只接动词原形,不能接句子,也不能用“why didn’t+动词原形”“why don’t+动词原形”这样的不伦不类的句子。

  如:   为什么不等到冬季大贱卖时再买一件新外衣呢?

  误:Why don’t wait till the winter sales to buy a new coat?

  正:Why not wait till the winter sales to buy a new coat?

  四、考查 why not 的隐含时态

  按英语习惯,why not ... 结构只用于提出建议,不用于表示责备,即只用于指将来的情况,而不用于指过去情况。如:

  我那时是能借钱给你的。你为什么没有向我借?

  误:I could have lent you the money. Why not ask me?

  正:I could have lent you the money. Why didn’t you ask me?

  我喊你的名字的时候,你为什么不来?

  误:Why not come when I called your name?

  正:Why didn’t you come when I called your name?

  五、用于某些特殊表达中   如用于 I don’t see why not,其意为“没问题”“好呀”。

  如:   — Can we go to the park? 我们去公园吧。   — I don’t see why not. 好呀。

  【边学边练】

  1. — It’s a long time since I saw my sister.    — _____ her this weekend?   A. Why not visit B. Why not to visit   C. Why not visiting D. Why don’t visit

  2. Why _____ your luck downtown, Bob? That’s where the best jobs are.   A. not try B. not to tryC. not tryingD. not tried

  3. — Let’s go to the cinema this evening, OK?    —_____   A. Not at all.B. Why not? C. Never mind.D. What of it?

  4. — Shall we eat Italian food tonight?    — Yes,_____   A. You’re welcome. B. Why not?   C. No problem.D. Not much

  5. — We could invite John and Barbara.    — Yes,_____   A. So what? B. Why not?C. Not really. D. Never mind.

  6. —_____ buy any bread?    — Sorry, I forgot.   A. Why notB. Why don’t   C. Why don’t youD. Why didn’t you

  7. If you want to sell your old sofa,_____ put an advertisement in the local paper?   A. why not B. why to   C. why don’tD. why didn’t

  8. — Would you like to try some raw fish?    — _____ , I’ll try anything once.   A. No wonderB. Which one C. Never mind D. Why not

  9. — Would you like some coffee?    — Sure,_____   A. why not?B. not exactly.C. no problem. D. so what?

  10. If you are worried about this change of career,_____ talk it over with your family?   A. no ideaB. no wonder C. why not D. not much

  11. — Will you join us in the game?   — Thank you,_____   A. but why not?B. but I’d rather not.   C. and I won’t. D. and I’ll join.

  12. — Michael was late for Mr. Smith’s oral class this morning.   —_____? As far as I know, he never came late to class.   A. How come B. So what C. Why notD. What for

  13. — How about putting some pictures into the report?   — _____ A picture is worth a thousand words.   A. No way.B. Why not?C. All right?D. No matter.

  14. — Let’s go and have a good drink tonight.   —_____ Have you got the first prize in the competition?   A. What for?B. Thanks a lot.   C. Yes, I’d like to. D. Why not?

  15. — Do you mind if I open the window?   —_____ I feel a bit cold.   A. Of course not. B. I’d rather you didn’t.   C. Go ahead. D. Why not?

  【参考答案】   1—5 AABBB   6—10 DADAC   11—15 BABAB

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