before的意思 before的意思是什么

1. 在...以前
2. 与其...宁可

1. 在前，向前
2. 较早
3. 以前，以往，已经

1. 以前的事情

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

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

1. 在…之前 earlier than the time

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

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

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。

• 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

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。

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。

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。