The conjunction and the pronoun are usually pronounced /wa?/. 用作連詞和代詞時(shí)在句中通常不作重讀。
1. （用于提問(wèn)原因）為什么 You use why in questions when you ask about the reasons for something.
e.g. Why hasn't he brought the whisky?... 他為什么沒(méi)把威士忌拿來(lái)？ e.g. Why didn't he stop me?... 為什么他沒(méi)阻止我？
2. (用于從句句首)為什么 You use why at the beginning of a clause in which you talk about the reasons for something.
e.g. He still could not throw any further light on why the elevator could have become jammed... 對于電梯為什么會(huì )卡住他仍舊給不出更多的解釋。 e.g. Experts wonder why the US government is not taking similarly strong actions against AIDS in this country... 專(zhuān)家們對為什么美國政府沒(méi)在這個(gè)國家采取類(lèi)似的強硬措施來(lái)對抗艾滋病而感到疑惑。
3. (用于reason后引導關(guān)系從句) You use why to introduce a relative clause after the word 'reason'.
e.g. There's a reason why women don't read this stuff; it's not funny... 女人不讀這種東西是有原因的，它并不好笑。 e.g. Unless you're ill, there's no reason why you can't get those 15 minutes of walking in daily. 除非你病了，否則你沒(méi)有理由每天連走15分鐘都做不到的。
4. (問(wèn)句中與 not 連用表示建議)為什么(不) You use why with 'not' in questions in order to introduce a suggestion.
e.g. Why not give Claire a call?... 為什么不給克萊爾打個(gè)電話(huà)？ e.g. Why don't you come home with me until you sort things out?... 你何不先和我一起回家，等事情解決了再走？
5. (問(wèn)句中與 not 連用表示惱怒或氣憤)為什么(不) You use why with 'not' in questions in order to express your annoyance or anger.
why是什么意思
e.g. Why don't you look where you're going?... 走路怎么不看著(zhù)點(diǎn)兒道呢？ e.g. Why don't they just leave it alone? 他們就不能別管了嗎？
6. (表示同意別人的建議)為什么不呢，好，行 You say why not in order to agree with what someone has suggested.
why什么意思
e.g. 'Want to spend the afternoon with me?' — 'Why not?'... “想和我共度這個(gè)下午嗎？”——“好??！” e.g. 'Shall I tell them about poor Mrs Blair?'—'Why not?' “我應該告訴他們可憐的布萊爾太太的情況嗎？”——“為什么不呢？”
7. (用于句首表示驚訝、震驚或生氣)哎呀，喲，嗨 People say 'Why!' at the beginning of a sentence when they are surprised, shocked, or angry.
e.g. Why hello, Tom... 哎呀，你好，湯姆。 e.g. Why, this is nothing but common vegetable soup... 啊，這只不過(guò)是普通的蔬菜湯而已。
8. the whys and wherefores -> see wherefores
why英英釋義
noun
1. the cause or intention underlying an action or situation, especially in the phrase `the whys and wherefores'