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關(guān)閉窗口 ◆as prep, conj. & pron.
1. 用作介詞，意為“作為”、“當(dāng)作”、“充當(dāng)”。如：
He treats me as a child. 他把我當(dāng)小孩看待。
As your doctor, I advise you to eat less. 作為你的醫(yī)生，我建議你少吃點(diǎn)。
2. 用作連詞，注意以下用法：
(1) 表示“隨著”。如：
As time passed, things seemed to get worse. 隨著時(shí)間的推移，情況似乎變得更糟了。
若其后不接從句，而接名詞，則用介詞 with 表示“隨著”。如：
With the development of modern agriculture and industry, more and more waste is produced. 隨著現(xiàn)代工農(nóng)業(yè)的發(fā)展，污染越來(lái)越嚴(yán)重了。
(2) 表示讓步(意為：雖然，盡管)，要用于倒裝句(相當(dāng)于 though, 但語(yǔ)氣稍弱)。如：
Much as I like you, I couldn’t live with you. 我盡管很喜歡你，卻不能和你一起生活。
Try as he would [might]，he couldn’t open the door. 他試過(guò)多次了，卻仍打不開(kāi)門。
注：倒裝后位于句首的名詞通常不用冠詞。如：
Boy as he was, he behaved like a girl. 他雖然是個(gè)男孩，但舉止卻像個(gè)女孩。
3. 用作關(guān)系代詞，主要用法有：
(1) 用在 such, same, as 等之后，引導(dǎo)限制性定語(yǔ)從句。如：
I live in the same place as Tom does. 我和湯姆住在同處。
Such people as knew him admired him. 認(rèn)識(shí)他的人都?xì)J佩他。
He smokes as expensive a cigarette as he can afford. 他抽一種他買得起的最貴的煙。
(2) 單獨(dú)用作關(guān)系代詞，引導(dǎo)非限制性定語(yǔ)從句，可放在主句之前(常譯為：正如)或之后(常譯為：這一點(diǎn))，且主從句之間一般要用逗號(hào)隔開(kāi)。如：
He was absent, as is often the case. 他缺席了，這是常有的事。
As was expected, he succeeded at last. 正如我們所料，他終于成功了。
◆ask v.
1. 可以接雙賓語(yǔ)。如：
Ask him his name. 問(wèn)問(wèn)他的名字。
She asked me what I wanted. 她問(wèn)我想要什么。
有時(shí)雙賓語(yǔ)交換位置，借助介詞 of。如：
他來(lái)請(qǐng)我?guī)兔Α?/SPAN>
正：He came to ask me a favour.
正：He came to ask a favour of me.
他問(wèn)了我一個(gè)問(wèn)題。
正：He asked me a question.
正：He asked a question of me.
2. 與介詞的常見(jiàn)搭配：
(1) 與介詞 for 連用，有“要求得到”的意思。如：
She is always asking for money. 她老是要錢。
He asked 100 yuan for a box. 他要100元一箱。
有時(shí)單獨(dú)用 ask 也可表示 ask for 的意思。如：
He asked (for) the teacher’s advice. 他向老師征求意見(jiàn)。
=He asked the teacher for his advice. 他向老師征求意見(jiàn)。
(2) 與 about 連用，表示詢問(wèn)或打聽(tīng)關(guān)于某事的情況。如：
Ask (him) about the ring — he may have found it. 問(wèn)問(wèn)(他)你丟的戒指——也許他撿到了。
(3) 與 after 連用，表問(wèn)候或問(wèn)好。如：
He always asks after you in his letters. 他每次來(lái)信都向
你問(wèn)候。
比較：
He asked her something. 他問(wèn)她一個(gè)問(wèn)題(或一件事)。
He asked her for something. 他問(wèn)她要某東西。
He asked her about something. 他問(wèn)她關(guān)于某事的問(wèn)題。
3. 后接不定式或不定式的復(fù)合結(jié)構(gòu)，表示要求做某事或要求某人做某事。如：
He asked to stay with us. 他要求和我們一起留下。
She asked me to post some letters. 她叫我寄幾封信。
4. 其后可接 that 從句，從句謂語(yǔ)通常用 should＋v。如：
He asked that he (should) be given a chance to explain it. 他要求給他機(jī)會(huì)解釋這件事。
以上一句也可用不定式來(lái)改寫(xiě)：
He asked to be given a chance to explain it.
5. 有時(shí)后接帶介詞短語(yǔ)或副詞的復(fù)合結(jié)構(gòu)。如：
He asked us to dinner. 他請(qǐng)我們吃飯。
You’d better ask him in (out, over). 你最好叫他進(jìn)來(lái)(出來(lái)，過(guò)來(lái))。
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