关于before的所有用法

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关于before的所有用法
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关于before的所有用法
关于before的所有用法

关于before的所有用法
Before的用法:
一、 before用作连词
1. before用作连词时,意思是“在……之前;还没来得及 …… 就”.例如:
Before she could move,she heard a great noise,which grew to a terrible roar.她还没来得及动弹,就听见有很响的声音,接着就成了可怕的隆隆轰鸣声.
Before I could say a word,she had stormed out of the room.不等我说一句话,她就冲出了房间.
Don’t count your chickens before they are hatched.不要高兴得过早.
2. 用于It + be + 时间段 + before...句型中,意思是“在……之后才……”.例如:
It will be five years before I come back.
我五年后才能回来.

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before [bi'fɔ:]
conj.在 ... 以前
pref.在 ... 以前, 在..前面
adv.以前, 以往, 之前
例句:
B comes before C in the alphabet.
B在字母表里排在C之前。
It will be a long time before we finish thi...

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before [bi'fɔ:]
conj.在 ... 以前
pref.在 ... 以前, 在..前面
adv.以前, 以往, 之前
例句:
B comes before C in the alphabet.
B在字母表里排在C之前。
It will be a long time before we finish this dictionary.
我们需要很长的时间才能把这部词典编译完。
He made a statement before the House of Commons.
他在下议院当众发表了一个声明。
讲解:
【语法用法】
Before同ago的比较:表示“早于现在多少时间前”,用ago。
He started five minutes ago.
表示“早于过去某时多少时间前”,通常用before 。
He told me he had seen her a few minutes before.
英美人也有用ago,觉得语气比较生动。
表示“早于将来某时多少时间前”,也用before。
When you call at the shop again this afternoon, you may be told that the book has been sold only a few minutes before.
表示“早于任何某时(不是现在、过去或将来的某时)多少时间前”,仍用before。
He often forgets what he has heard only a few minutes before.
表示“从现在说到以前,不特指若干时间”时,用before。
We (have) met them many times before.
在倒数回以前,表示“一些事情已发生了多久”时,可用before。
When I went back to the town that I had left eight years before, everything was different.

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