about

音標(biāo)發(fā)音

adv. 大約；將近；到處；（特定位置）四下；閑著；周圍；掉頭
prep. 關(guān)于；目的是；針對(duì)；忙于；因?yàn)?；在……到處；在……四處；在……附近；在……（具有某種品質(zhì)）；圍繞；為……感到
adj. 在場(chǎng)的，可得到的；就要……的；四處走動(dòng)的；有證據(jù)的，在起作用的
n. (About) （法、印、美）阿布（人名）

在指“不久就要……”時(shí)，后通常接不定式，如about to start。也有接動(dòng)名詞，如about starting。但是不可再加表示時(shí)間的詞，如不可說(shuō)about starting at once；
指“大約”的意思時(shí)，表達(dá)方式有about ten，about half等。注意ten和half都是明確的數(shù)量，about不該用在“多少不定”的詞前，如about more than ten，about less than half；
與at搭配使用時(shí)，about是副詞，沒(méi)有at時(shí)，about 是介詞。句中可有at，也可沒(méi)有，意思相同。I went (at) about five (o'clock).
about + 不定式，表示“即將要去做某事”。Don't go out now - we're about to have lunch.
about與動(dòng)詞go組成短語(yǔ)時(shí)，為副詞，意為“著手做，從事”。

Instead of complaining about what's wrong, be grateful for what's right.
別抱怨不好的事，要對(duì)好的事心存感恩。
If you're not satisfied with the life you're living, don't just complain. Do something about it.
對(duì)于現(xiàn)況的不滿，不能只是抱怨，要有勇氣作出改變。
Doctors are complaining about being barraged by drug-company salesmen.
醫(yī)生們抱怨他們疲于應(yīng)付醫(yī)藥公司的銷售人員。
She is always worrying about little things.
她老是為小事煩惱.
I shall have to read up on this subject if I am to give a talk about it.
如果我準(zhǔn)備做一次關(guān)于這課題的講座,我就必須把它徹底研究一番.

You use about to introduce who or what something relates to or concerns.
When you mention the things that an activity or institution is about, you are saying what it involves or what its aims are.
You use about after some adjectives to indicate the person or thing that a feeling or state of mind relates to.
If you do something about a problem, you take action in order to solve it.
When you say that there is a particular quality about someone or something, you mean that they have this quality.
If you put something about a person or thing, you put it around them.
About is used in front of a number to show that the number is not exact.
If someone or something moves about, they keep moving in different directions.
About is also a preposition.
If someone or something is about, they are present or available.
If you are about to do something, you are going to do it very soon. If something is about to happen, it will happen very soon.
how about&rarrsee how
what about&rarrsee what
just about&rarrsee just
If someone is out and about, they are going out and doing things, especially after they have been unable to for a while.