conj.(连词)

1. 在...以前
2. 与其...宁可

adv.(副词)

1. 在前，向前
2. 较早
3. 以前，以往，已经

n.(名词)

1. 以前的事情

prep.(介词)

1. （指时间）在...以前
2. （指位置）在...前面，面对着
3. （指次序、重要性等）在...之前，先于
4. （宁可...而）不愿...
5. 由...考虑中
6. 等待着...，有待于...去完成
7. 在未扣除…之前

prep.(介词)

1. (表示位置)在…前面 in front of
2. (表示时间)先于,在…以前 earlier than; preceding in time
3. (表示顺序)在…之前 at an earlier point in an order than; ahead of
4. (表示比较)优于,先于 occupying a superior place in order of precedence or importance
5. (表示选择)与其…宁可 in preference (to), rather than

conj.(连词)

1. 在…之前 earlier than the time

adv.(副词)

1. 先前; 从前; 以前 at an earlier time; already; formerly
2. 在前，在前面 in the front
3. 到前面 forward

Adverb:

1. earlier in time; previously;

   "I had known her before"
   "as I said before"
   "he called me the day before but your call had come even earlier"
   "her parents had died four years earlier"
   "I mentioned that problem earlier"
   

2. at or in the front;

   "I see the lights of a town ahead"
   "the road ahead is foggy"
   "staring straight ahead"
   "we couldn't see over the heads of the people in front"
   "with the cross of Jesus marching on before"
   

In addition to the uses shown below,before is used in the phrasal verbs ‘go before’ and ‘lay before’.
除下列用法外，before 还可用于 go before 和 lay before 等短语动词中。

1.（时间上）在…之前，早于
If something happensbefore a particular date, time, or event, it happens earlier than that date, time, or event.

e.g. Annie was born a few weeksbefore Christmas...
安妮出生在圣诞节前几周。
e.g. before World War II, women were not recruited as intelligence officers...
在第二次世界大战之前，女性不能当情报人员。

2.在（做某事）之前
If you do one thingbefore doing something else, you do it earlier than the other thing.

before的解释

e.g. He spent his early life in Sri Lankabefore moving to England...
在移居英格兰之前，他早年是在斯里兰卡度过的。
e.g. before leaving, he went into his office to fill in the daily time sheet.
离开前，他到自己的办公室填写了日常考勤表。

3.在（某时间或某事）以前
You usebefore when you are talking about time. For example, if something happened the daybefore a particular date or event, it happened during the previous day.

before

e.g. The war had ended only a month or sobefore.
战争大约一个月前才刚刚结束。

4.在（他人做某事）之前
If you do somethingbefore someone else can do something, you do it when they have not yet done it.

e.g. before Gallacher could catch up with the ball, Nadlovu had beaten him to it.
加拉赫还没来得及追上球，纳德洛武就已经抢先一步触到球了。

5.以前；以往；过去
If someone has done somethingbefore, they have done it on a previous occasion. If someone has not done somethingbefore, they have never done it.

e.g. I've been herebefore...
我以前来过这儿。
e.g. I had met Professor Lownbefore...
我以前见过劳恩教授。

6.（直到…）才；（过了…）才
If there is a period of time or if several things are donebefore something happens, it takes that amount of time or effort for this thing to happen.

e.g. It was some timebefore the door opened in response to his ring.
他按完门铃后过了一会儿门才打开。

7.（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 happenbefore 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 donebefore 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。

8.（方位）在…前面，在…面前
If someone isbefore something, they are in front of it.

e.g. They drove through a tall iron gate and stoppedbefore 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。

9.（所经位置）在…前面
If you tell someone that one place is a certain distancebefore another, you mean that they will come to the first place first.

e.g. The turn is about two kilometresbefore the roundabout.
拐弯就在环岛前面约2公里处。

10.面对…（回答质询）
If you appear or comebefore an official person or group, you go there and answer questions.

before的反义词

e.g. The Governor will appearbefore the committee next Tuesday.
下周二，州长将接受委员会的质询。

11.当着…的面；在…注视之下
If something happensbefore a particular person or group, it is seen by or happens while this person or this group is present.

e.g. The game followed a colourful opening ceremonybefore a crowd of seventy-four thousand.
绚丽多彩的开幕式过后，这场比赛在74,000名观众的瞩目之下开始了。

12.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 lifebefore you, you must do it or live through it in the future.

e.g. Everyone in the room knew it was the single hardest taskbefore 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。
e.g. I sawbefore me an idyllic life.
展现在我眼前的是充满诗情画意的生活。

13.（重要性）超过；比…重要
When you want to say that one person or thing is more important than another, you can say that they comebefore the other person or thing.

e.g. Her husband, her children, and the Church camebefore her needs.
丈夫、孩子和教会都比她本人的需求重要。

14. before long -> see long

B comes before C in the alphabet.

B在字母表里排在C之前。

He made a statement before the House of Commons.

他在下议院当众发表了一个声明。

He always put the interests of others before his own.

他总把他人的利益放在第一位。

I'd met him once before.

我曾经见过他。

I have seen that film before.

那部电影我以前看过。

I was inspired to work harder than ever before.

我受激励比以往任何时候都更加努力地工作。

He used to get some shut-eye before the game.

他以往常常在比赛前睡一会儿。

He overlooked the contract before he signed it.

他在签字之前仔细阅读了合同。

I'll try to rush the book through before Saturday.

我会设法在星期六之前把这本书赶紧看完。

before lunch

午餐前

the day before yesterday

前天

The year before last he won a gold medal, and the year before that he won a silver.

他前年得了一枚金牌，大前年得了一枚银牌。

She's lived there since before the war.

她从战前起就一直住在那里。

He arrived before me.

他比我先到。

She became a lawyer as her father had before her.

像她父亲先前一样，她成了一名律师。

Leave your keys at reception before departure.

离开前请把钥匙留在服务台。

Something ought to have been done before now.

先前就该采取措施了。

We'll know before long (= soon) .

我们很快就会知道了。

Turn left just before (= before you reach) the bank.

在快到银行时向左拐。

They knelt before the throne.

他们跪在御座前。

before you is a list of the points we have to discuss.

放在你面前的是一份我们要讨论的要点清单。

Your name is before mine on the list.

名单上你的名字在我之前。

Her husband, her children, and the Church came before her needs.

丈夫、孩子和教会都比她本人的需求重要。

I saw before me an idyllic life.

展现在我眼前的是充满诗情画意的生活。

The Governor will appear before the committee next Tuesday.

下周二，州长将接受委员会的质询。

The game followed a colourful opening ceremony before a crowd of seventy-four thousand.

绚丽多彩的开幕式过后，这场比赛在74,000名观众的瞩目之下开始了。

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。

The turn is about two kilometres before the roundabout.

拐弯就在环岛前面约2公里处。

before Gallacher could catch up with the ball, Nadlovu had beaten him to it.

加拉赫还没来得及追上球，纳德洛武就已经抢先一步触到球了。

I've been here before...

我以前来过这儿。

I had met Professor Lown before...

我以前见过劳恩教授。

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。

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。

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。

Annie was born a few weeks before Christmas...

安妮出生在圣诞节前几周。

before World War II, women were not recruited as intelligence officers...

在第二次世界大战之前，女性不能当情报人员。

He spent his early life in Sri Lanka before moving to England...

在移居英格兰之前，他早年是在斯里兰卡度过的。

before leaving, he went into his office to fill in the daily time sheet.

离开前，他到自己的办公室填写了日常考勤表。

The war had ended only a month or so before.

战争大约一个月前才刚刚结束。

1. The man standing before the blackboard is our English teacher.
   站在黑板前面的那个人是我们的英语老师。
2. We got up before sunrise.
   我们在太阳升起之前起床。
3. before crossing the road, you should have a look at both ways.
   过马路之前,你应该看看路的两边。
4. Quality comes before quantity.
   品质优于数量。
5. We must stop and rest before going any farther.
   我们必须停下来休息一下再向前去。
6. You must pay attention to this problem before every thing.
   你应该首先注意这个问题。
7. The criminal case comes before the court.
   那桩刑事案件已送法院审理。
8. Great sums of money were placed before the scientists by the government.
   政府为科学家们提供了大笔的经费。
9. What do you earn before tax?
   在未缴税前你的收入是多少?
10. He would die before betraying his country.
    他宁愿一死,也不肯叛国。

1. Be a pupil before you become a teacher.
   先做学生,再做老师。
2. He will come to see you before he leaves Beijing.
   他离开北京之前会来看你的。
3. It will be some time before we know the full results.
   还要过一些时间我们才能知道全部结果。
4. It will be eight years before we meet.
   八年以后我们才能相见。
5. His father died before he was born.
   他父亲在他出世以前就去世了。
6. He had left for the United States just before the letter arrived.
   他恰好在信到之前去美国了。
7. She died before she reached the hospital.
   她还没有到医院就死了。
8. I had barely come in before the telephone rang.
   我刚进来,电话就响了。
9. Barely had she sat down before the play began.
   她刚坐下,戏就开始了。
10. We had scarcely left the house,before it began to rain.
    我们刚刚离家，天就下起雨来。
11. I will die before I'd surrender.
    我宁愿死也不投降。
12. He'd sit alone in the dark before he'd watch TV.
    他宁愿一个人在黑暗里坐着也不看电视。
13. We must stop and rest before going any farther.
    我们必须停下来休息一下再向前走。

1. We saw that film before.
   那部电影我们以前看过。
2. I (have) read the book before.
   我以前读过这本书。
3. It came across my mind that I had met him somewhere before.
   我突然意识到我曾在什么地方见过他。

before long

(时间)不久之后,在短时间内 in a short time

long before

很久以前 very long ago

动词+～

• before">appear before在(某时)之前出现;出庭
• before">carry before迅速获胜,势如破竹
• before">come before在…之上,比…重要;被交由…处理；被提交…考虑
• before">complain before控诉
• before">go before出现在某人面前；送于…讨论；先于；早于
• before">lay before提出
• before">set before把…放在…前面；认为…比…更重要；把…提交…考虑
• before">stand before站立在…前面，来到…面前，面对，面临，抵御，抵挡
• before%20one">carry the world before one一举大获成功
• before%20swine">cast pearls before swine对牛弹琴,明珠暗投
• before%20the%20horse">put the cart before the horse本末倒置,倒行逆施
• before%20one">sweep all before one获得彻底的胜利，所向无敌
• before%20the%20bench">be brought before the bench被带到法庭受审
• before%20court">take sb before court将…送上法庭

～+名词

• before%20day">before day破晓前
• before%20long">before long不久,很快;在短时间内
• before%20one%27s%20eyes">before one's eyes当着某人的面
• before%20one%27s%20time">before one's time在时代前面;思想过于先进
• before%20the%20mast">before the mast充当水手
• before%20time">before time提前
• before%20the%20wind">before the wind顺风
• before%20the%20world">before the world在众人面前，公然
• before%20yesterday">the day before yesterday前天
• before%20last">the week before last上上星期

～+副词

• before%20now">before now从前,以前

• I am sent with broom before, To sweep the dust behind the door.

  出自：Midsummer Night's Dream,Shakespeare

• Had he his hurts before?..Ay, on the front.

  出自：Macb.

• Onward, Christian soldiers, Marching as to war, With the Cross of Jesus Going on before.

  出自：S. Baring

交通

before

B：Let the people (off/ get off/ disembark from) the trainbefore you get on.
让别人（先下/先下来/先下车）你再上去。

A：I see, that makes more sense, doesn’t it?
我知道。这样更合理，不是吗？

A going concern-(赢利企业)

before什么意思

A：What's your overseas branch factory going?
你海外的分厂进展如何？

B：Not very good at first. It has been two yearsbefore it becomes a going concern.
开始不太理想，直到两年以后才开始赢利。

A：Once you break the ice, it will be better and better.
一旦打开局面，肯定会越来越好的。

B：I hope so.
但愿如此。

Leaving a little early-(早退)

before

A：Could I trouble you for a minute, Mr. Graham?
能打扰一下吗，格雷厄姆先生？

B：Sure, Emily. How can I help you?
没问题，爱米丽。我能帮你什么？

A：I would like to leave a few minutes early today. Would that be all right?
我今天想早走几分钟，可以吗？

B：That’s fine, as long as you can get that report typed upbefore you leave.
可以。只要你走之前把那份报告打完就成。

prep.(介词)

1. before可用于表示时间。首先，可以表示“先于，在…以前”，其后可以跟表示具体日期、时间等的名词或数词，也可以跟表示时间或动作的名词。其次，可以表示“在做…之前”，后接 v -ing。再次，可以表示“紧接在…之前”。before用于否定句还可表示“直到…为止”。注意before之后只能接表示时间点的名词，而不能接表示时间段的名词。
2. before可用于表示动态或静态的位置，意思是“在…之前”，与behind相对。
3. before可用于表示顺序或排列上的“在…之前”或“居于…之前”，与after相对。引申可用于表示比较，即在等级、价值、重要性、能力等方面的“在先”“优于”“重于”。再引申则可用于表示对某事物的优先选择，即“宁可”或“与其…宁可”。
4. before还可表示“面对，在…眼前，在…面前”“有待于去完成”“在审理中，由…考虑”“在…压力下”等。

conj.(连词)

1. before主要引导时间状语从句，意为“先于”“…之后才”“(不多久)就…”。当主句是将来时时，从句谓语动词须用现在时；当主句是一般过去时或过去完成时时，从句常用过去时。before引导的时间状语从句不能用于否定式。
2. before还可用于barely〔scarcely〕...before结构，意为“刚…就…”。
3. before还可引导让步状语从句，意思是“宁愿…也不…”。
4. before引导的从句常用省略句型。

adv.(副词)

1. before用作副词时,意思是“以前,在前面”,表示从较近的过去至较远的过去。用作时间状语泛指以前、不与具体时间连用时，谓语动词可以用一般过去时,也可用现在完成时,前者只表示“过去发生过”,后者则强调“对现在有影响”。
2. before与具体时间连用时,一般置于其后，谓语动词通常用过去完成时。
3. before也可表示空间或位置的“在前，在前面”，还可表示运动“到前面”。

1. before同ago的比较：表示“早于现在多少时间前”，用ago。表示“早于过去某时多少时间前”，通常用before 。表示“早于将来某时多少时间前”，也用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。表示“从现在说到以前，不特指若干时间”时，用before。在倒数回以前，表示“一些事情已发生了多久”时，可用before。

   He started five minutes ago.

   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。

   When you call at the shop again this afternoon, you may be told that the book has been sold only a few minutes before.

   He often forgets what he has heard only a few minutes before.

   We (have) met them many times before.

   When I went back to the town that I had left eight years before, everything was different.

2. before与不同介词搭配时，句子意思有差异。

   All day, as three days before, we planted trees.
   同三天前一样，我们一整天都在种树。

   All day, as for three days before, we planted trees.
   同以前的三天一样，我们一整天都在种树。

3. before既可作副词，也可作介词，如在three hours before中为副词。在before three o'clock中为介词，但要注意before不能在表示“一段时间”的词前作介词，不能说before a month，可说a month ago；
4. before long，属于习语，表示“不久以后”，同before a long time has passed意思一样。before very long也指“不久以后”，但比before long时间短；
5. 要注意before的表达方式，不能说before five minutes of the accident，而是five minutes before the accident。其他表达方式如下：

   A few minutes before the accident she called on me.
   （不含the/for）

   During the few minutes before the accident she had a chat with me.
   （含the）

   For a few minutes before the accident she had a chat with me.
   （含for）

6. before作连接词，指“……以前”时，后接到从句中的动词一般不能用将来时。如不可以说He will arrive before she will start，可以说He will arrive before she starts。若是表示“长久以后才会发生的事”时，可用将来时。

   It will not be long before they come back.
   他们很快就回来了。

prep.(介词)

before, by

这两个词都可表示“在…之前”。before所表示的时间不包括其宾语所指时间在内,与之连用的动词可以是延续性动词,也可以是瞬间动词; by所表示的时间包括宾语所指的时间在内,因而常译成“不迟于…”。

before, for

这两个词都可表示时间，但before可用于肯定句和否定句，表示将来的一个时间点；而for只用于否定句，表示将来的一个时间段。例如：

The sun will not rise before six o'clock.

太阳在六点钟前不会升起。

The sun will not rise for an hour.

太阳在一个小时之内不会升起。

before, in front of

这两个词(组)都可表示“在…前面”，在表示位置或“当…的面”时两者常可替换。其区别是：

1.表示具体事物如建筑物之前时用before较正式，而用in front of更普通。

2.在表示人的名词前和较抽象化或比喻用法时通常用before。

3.before还有引申义，例如：

A tree stands in front of the home.

房子前面有棵树。

A tree stands before the door of the house.

房子前面有棵树。

第二个句子使用before暗示这棵树可“给房子遮阴”或“给人出行造成困难”等意。

before, till, until

这三个词均可表示“在…之前”“直到”。

1.在否定句中, before和till或until可以互换,但前者强调句中动作在其宾语所指时间之前的进展情况,而后者则强调句中动作在其宾语所指时间之后的转变情况。

2.在肯定句中, before强调句中动作在其宾语所指时间之前已经完成或强调句中状态在其宾语所指时间之前持续的情况,因而句中可以用持续性动词或瞬间动词; till和until则强调句中动词所表示状态在其宾语所指时间之后的结束或转变情况。

conj.(连词)

下面两个句子的意思相同:

I left before he came.

I left before he had come.

他还没来我就走了。

adv.(副词)

before long, long before

before long的意思是“不久之后”,相当于soon,其中before是介词, long是名词; long before的意思是“很久以前”,相当于a long time earlier,long与before都是副词, long说明before的程度。试比较:

It happened before long.

不久就发生了。

It happened long before.

很久以前就已发生了。

before, ago

这两个词都可表示“从前”。其区别是：

1.ago一般只作副词; 而before除作副词外,还可用作连词、介词。

2.ago总是与表示时间的名词或形容词连用,不单独使用; 而before可以单独使用。

3.ago用于从现在算起的某段时间从前,和一般过去时连用,不用现在完成时。而before用于从过去某时起若干时间以前的场合,动词需用过去完成时。例如：

I left school three years ago.

我三年前离开了学校。

He said he had finished the job three days before.

他说他在三天前就完成了这项工作。

I told you before.

我以前告诉过你。

以前我从来未见过那本书。

［误］ I never saw that book ago.

［正］ I never saw that book before.

before, ahead, forward

这组词的共同含义是指“在某时间或地点以前”，其区别是：

1.before主要用于时间而少用于地点；而ahead和forward则主要用于地点而少用于时间。

2.用于地点时，ahead指自身以外的前方，而forward则指自身的前部。试比较：

The commander sent a group of scouts ahead.

指挥员派一支侦察队到前面去。

The commander sent a company forward.

指挥员调一连人到前面来。

前句表示小分队离开大部到前面去, 后句则表示把一人调至队首或较前面的位置。

在航海上, ahead指方向或位置在船外或船的前部; 而forward则指中部靠前的位置。

用于引申意, 也有同样的区别, 如look ahead可指预见长远后果而不计较当前得失, 而look forward则指预料到某事可能或一定能发生。

3.用于指可顺、逆变化的机械运动时，ahead和forward则无明显差别，例如按顺时针拨动表针，可说set the clock forward，也可说set the clock ahead。

ago，before

这两个副词均含“……以前”之意。

ago指从现在起往前推算一段时间，始终置于所修饰的词之后，与一般过去时连用。

before或指从过去某一时间起向前推算的若干时间的以前，通常与过去完成时连用；或泛指以前，并不具体指若干时间以前，可使用现在完成的或过去时；还可指从将来某一时间起的若干时间以前。

before，in front of，in the front of

这些前置词(短语)均含有“在……前”之意。

before指空间位置或时间的“在……前”。表时间时，反义词为after；指空间位置时，其反义词是behind。

in front of指在某地方之外的前面，即不在其中，多与静态动词连用，通常可与before通用。

in the front of指在某地方之内的前面，即在其中的前部分。

conj.(连词)

铃还没响，同学们就走出去了。

误 The students went out before the bell didn't ring.

正 The students went out before the bell rang.

before引导的时间状语从句不能用于否定句。