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before的用法
before意为在什么之前，它的用法是怎样的呢?以下是小编为大家整理的before的用法，欢迎阅读，希望大家能够喜欢。
一、可以用作介词
⒈)指时间上早于，在……之前，如：
She has lived here since before the war.
她从战前就一直在这儿住。
⒉)指位置在前面，如：
We knelt down before Grandma‘s grave.
我们在奶奶的墓前跪下。
⒊)指顺序或排列在之前，如：
Your name comes before mine on the list.
名单上你的名字在我之前。
⒋)在某人面前，如：
She said it before the witness.
他是当着证人的面说的。
二、作为连词
其基本含义是“在……之前”，又可以根据不同语境灵活翻译成“才”、“还没来得及就……”、“趁……”、“就”等。具体用法如下：
⒈)与情态动词can/could连用
这时候从句虽为肯定形式，根据汉语表达*惯译成“还没来得及就”，如：
Before I could get in a word，he had measured me.
我还没来得及插话他就为我量好了尺寸。
Before she could move，she heard a loud noise，which grew to a terribl eroar.
她还没来得及迈步，就听见一声巨响，接着就是可怕的隆隆轰鸣。
⒉)用于肯定句中强调主句所表达的.时间，距离长，或花费的精力大，译成“才”
We had sailed four days and four nights before we saw lands.
我们航行了四天四夜才看到陆地。
We waited a long time before the train arrived.
我们等了很长时间火车才到。
⒊)用于否定句中，强调主句所表达的时间，距离短，或花费的精力小，译成“不到……就”如：
We hadn‘t run a mile before he felt tired.
我们跑了还不到一英里他就累了。
⒋)主句含有hardly，scarcely等半否定副词时可以译为“刚……就”
这时候主句应用过去完成时态，从句用过去时，还可以用when替代before如：
We had scarcely reached the school before/when the bell rang.
我们刚到学校铃声就响了。
⒌)有时还有“宁愿”的意思
I‘d shoot myself before I apologized to him.我宁死也不向他道歉。
⒍)用于It+be/take+时间段+before句型
在这一句型中又可以根据主从句的时态分成两种情况。
若主句是一般时将来时态，从句是一般现在时.若主句是肯定句意思是“要过多长时间才”;若主句是否定形式翻译成“用不了多久就”。
It will be two weeks before everything returns to normal.
两周之后一切才能恢复正常。
It will be many years before the situation improves.
这种状况或许要过许多年才能得以改善。
It won‘t be long before we meet again.用不了多久我们就会再见面的。
这时若主句是一般过去时从句也是一般过去时。若主句是肯定句翻译成“多长时间之后才”，若主句是否定形式翻译成“没过多久就”。如：
It was some time before I realized the truth.
过了很长一段时间我才了解到真相。
It wasn‘t long before she became a brave solider.
没过多久她就成了一名勇敢的战士。
After that it still took seven years before they got married.
英文before是什么汉语意思
英文before是一个多词性的单词，我们应该知道它每一种词性的汉语意思。快来看看小编为你准备了英语单词before所表达的汉语意思，欢迎大家阅读!
before的汉语意思
英 [bf:(r)] 美 [bfr,-for]
介词 在…之前; 先于，优于; 当着…的面; 与其…
连词 在…之前; 在…以前; 比…早些; 与其…
副词 先前，从前; 在前，在前方
例句
1. Several soldiers went before to scout.
数名士兵在前面探路。
2. He was never late before.
过去他从不迟到。
3. He sat just before me.
他就坐在我的'前面。
before的单语例句
1. He even obtained copies of the firm's business licence and Xie's identity card to make sure the company was legitimate before paying for two stalls.
2. A sales manager at the center surnamed Xi said business always booms before and during the holidays.
3. Before joining Cass in 2006 he taught at Durham University Business School for three years.
4. He was placed on inactive Guard duty six months before his commitment ended at his request because he was starting Harvard Business School.
5. Such a limited business scope is perfect for foreign investors who want to test the waters in the China market before making a big commitment.
6. But international business leaders discovered the global business trend long before Friedman, and put it to good use.
7. The businessman loves participating in dog shows and said he has trained several breeds of dogs before but none of them won any prizes.
8. For a second - before they speak - I imagine that nudge is coming from a wealthy businessman with money spilling out of his pockets.
9. Bryant said he was considering signing with the Clippers and Chicago Bulls three years ago before hearing from Buss.
before的词典解释
1. 以前;以往;过去
If someone has done something before, they have done it on a previous occasion. If someone has not done something before, they have never done it.
e.g. I've been here before...
我以前来过这儿。
e.g. I had met Professor Lown before...
我以前见过劳恩教授。
2. (直到…)才;(过了…)才
If there is a period of time or if several things are done before something happens, it takes that amount of time or effort for this thing to happen.
e.g. It was some time before the door opened in response to his ring.
他按完门铃后过了一会儿门才打开。
3. (必须先具备某一条件)才能;在…之前(必须具备某一条件)
If a particular situation has to happen before something else happens, this situation must happen or exist in order for the other thing to happen.
e.g. There was additional work to be done before all the troops would be ready.
在全军准备就绪之前，还有一些杂事必须处理。
4. (方位)在…前面，在…面前
If someone is before something, they are in front of it.
e.g. They drove through a tall iron gate and stopped before a large white villa.
他们开车穿过一个大铁门，在一栋白色的大别墅前面停了下来。
5. 摆在…面前;使面对;使面临
If you have something such as a journey, a task, or a stage of your life before you, you must do it or live through it in the future.
e.g. Everyone in the room knew it was the single hardest task before them...
房间里所有人都清楚，摆在他们面前的是最为艰巨的任务。
高考英语易错词汇解析：before long与long before
高考英语中有很多易错易混词汇，同学们一定要在*时的复*中掌握这些内容，为了方便同学们复*，接下来是小编为你整理了高考英语易错词汇解析：before long与long before一起来看看吧。
before long与long before
1. before long 的意断是“不久，很快”。如：
I‘ll be back before long. 不久我就回来。
Before long he got married. 不久他就结婚了。
2. long before有两个用法：
(1) 老早，早就(单独使用，表示比过去某时早得多的时间)。如：
She had left long before. 她老早就离开了。
That had happened long before. 那事老早就发生了。
注：long ago 表示“很久以前”，指的`是从现在算起的很久以前，通常与一般过去时连用：
I met him long ago. 我很久以前就认识他了。
(2) 在……的很久以前，在还没有……的很久以前。如：
She had left long before his return [he returned]. 在他回来的很久以前她就走了。
He had worked in the factory long before he got married. 在他还没有结婚的很久以前他就在这家工厂工作了。
注：此时的主句谓语通常用过去完成时，但有时也可用一般过去时(因为 before 已体现了动作的先后关系)。如：
This happened long before you were born. 这事在你还没出生以前很久就发生了。
另外注意以下句式：
It is [was， will be] long before……在……前需要很久。如：
It was long before he came back. 过了好久他才回来。
It won‘t be long before we see each other. 不久我们又会见面的。
比较：
It wasn‘t long before he realized his mistake. / Before long he realized his mistake. 不久他意识到了自己的错误。
同义词辨析agree with, agree to和agree on
辨析agree with， agree to和agree on
(1)agree with的意思是“同意”，“赞成”。后面常接表示人或意见(看法)的名词或代词作宾语。如：
Does she agree with us?她同意我们的意见吗?
None of us agree with what you said.我们没有一个人同意你讲的话。
(2)agree with还有“与……一致”，“(气候、食物等)适合”的意思。如：
His words do not agree with his actions.他言行不一致。
Too much meat doesn‘t agree with her.吃太多食物对她身体不合适。
注意：agree with不能用于被动语态。
(3)agree to意为“同意”，“赞成”，后面跟表示“提议”，“办法”，“计划”，“安排”等的名词或代词。如：
Please agree to this arrangement.请同意这个安排。
This plan has now been agreed to.这个计划已经被认可了。
(4)agree on表示“对……取得一致意见”，指两方或多方就某个问题取得了一致的意见或是达成了某种协议。如：
After discussion the two sides agreed on a cease-fire.经过讨论，双方就停火问题达成了协议。
They all agree on the matter.他们在这个问题上意见一致。
★1☆ 用微笑来证明你自己，我可以！
★2☆ Learntowalkbeforeyourun.先学走，再学跑。
★3☆ 后的措手不及是因为当初游刃有余的自己
★4☆ 有时候，最好的朋友会让你的生活一团糟，可是没有他们，你的人生就少了许多色彩。
★5☆ 生活的美来源于你对生活的热爱，友情的纯真来源于你对朋友真诚的相待。
★6☆ 永远在追求快乐，永远在逃避痛苦。
★7☆ 刺拼搏，在前进中寻找乐趣。
★8☆ 心如镜，虽外景不断变化，镜面却不会转动，这就是一颗*常心，能够景转而心不转。
★9☆ 在新起点，迎接新挑战，创造新成绩。
★10☆ 离开永远比相遇更容易，因为相遇是几亿人中一次的缘分，而离开只是一个人的决定。
★11☆ 命有如铁砧，愈被敲打，愈能发出火花。——伽利略
★12☆ 疑和否定之海，围绕着人们小小的岛屿，而信念则鞭策人，使人勇敢面对未知的前途。
★13☆ 我不去想是否能够成功，既然选择了远方，便只顾风雨兼程！
★14☆ 治天下者必先立其志(明&#;程颢)
★15☆ *静只是暴风雨来临的前奏。
