why not的用法總結(jié)
why not的用法總結(jié)
以下是小編為大家整理的why not的用法，希望能幫助大家更好地掌握why not這個(gè)詞組，提高英語(yǔ)水平。
why not 在口語(yǔ)中主要有以下用法。
1. 表示同意或贊成，意為：好的;可以呀;為什么不可以呢。如：
A：May I go with you? 我可以和你一起去嗎?
B：Why not? 可以呀。
A：Let’s eat out tonight. 今晚我們出去吃吧。
B：Yes， why not? 那好啊。
A：I wonder if I could make a living by writing. 我不知靠寫作能否維持生計(jì)。
B：Why not? 那可以呀。
2. 用來(lái)詢問(wèn)原因(有時(shí)表示一種不可理解的心情)，意為：為什么;為什么不……呢。如：
A：He isn’t going to see her off at the station. 他不準(zhǔn)備去車站送她。 B：Why not? 為什么?
A：You should not smoke. 你不該抽煙。 B：Why not? 為什么?
A：Don’t touch it. 別碰它。 B：Why not? 為什么?
A：It’s hot! You’ll burn yourself. 那是燙的，你會(huì)燙著的。
3. 表示勸誘、建議或命令，意為：……怎么樣;為什么不……呢。
如： Why not ask someone else? 問(wèn)問(wèn)別人怎么樣? Why not go there at once? 為什么不馬上去呢?
A：My girl-friend is in a bad mood. 我的女朋友情緒不好。
B：Why not give her some flowers? 為什么不送她一些花呢?
4. 表示堅(jiān)持自己的觀點(diǎn)、態(tài)度或做法，意為：為什么不呢。如：
A：Are you really going to sue them? 你真的要控告他們嗎?
B：Yes， why not? 是的，為什么不呢?
二、考查 why not 后的動(dòng)詞用何形式
why not 后習(xí)慣上只接動(dòng)詞原形，不能接帶 to 不定式或現(xiàn)在分詞。如：
你一臉倦容，怎么不休假呢?
誤：You’re looking tired. Why not taking a holiday?
正：You’re looking tired. Why not take a holiday?
何不靜觀其結(jié)果呢?
誤：Why not just to wait and see what happens?
正：Why not just wait and see what happens?
注：在一定的語(yǔ)境中，有時(shí)why not后可省略動(dòng)詞原形。
如：
A：Let’s meet at the station. 我們?cè)谲囌疽娒姘伞?/p>
B：Why not at the hotel?在飯店不行嗎? 句中的why not后可視為省略了動(dòng)詞wait。
三、考查 why not 句式的結(jié)構(gòu)形式
why not 后習(xí)慣上只接動(dòng)詞原形，不能接句子，也不能用“why didn’t+動(dòng)詞原形”“why don’t+動(dòng)詞原形”這樣的不倫不類的句子。
如： 為什么不等到冬季大賤賣時(shí)再買一件新外衣呢?
誤：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 的隱含時(shí)態(tài)
按英語(yǔ)習(xí)慣，why not ... 結(jié)構(gòu)只用于提出建議，不用于表示責(zé)備，即只用于指將來(lái)的情況，而不用于指過(guò)去情況。如：
我那時(shí)是能借錢給你的。你為什么沒有向我借?
誤：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?
我喊你的名字的時(shí)候，你為什么不來(lái)?
誤：Why not come when I called your name?
正：Why didn’t you come when I called your name?
五、用于某些特殊表達(dá)中 如用于 I don’t see why not，其意為“沒問(wèn)題”“好呀”。
如： — Can we go to the park? 我們?nèi)ス珗@吧。 — I don’t see why not. 好呀。
【邊學(xué)邊練】
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?
【參考答案】 1—5 AABBB 6—10 DADAC 11—15 BABAB
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