before的用法总结
以下是我为大家 总结 的before的用法，希望能帮助大家更好地掌握before的用法，提高英语水平。
before的用法总结
1 作介词
A.指时间.在……以前. e.g. It began to rain before midnight .
B. 指位置.在……面前. e.g. They knelt before the king .
C. 指顺序或排列在前面. e.g. You name comes before mine on the list .
2 作连词
A.在……之前. e.g. Did she leave a message before she went ?
B.用于It + be +时间段 + before ：在……之后才…… e.g. It willl be five years before I come back .
3 常于情态动词 can / could 连用 ： 还没来得及……就……
e.g. Before I could say a word , she had rushed out of the room
掌握before 热点 用法
1. prep. 在......以前，强调时间
He came to see me the day before yesterday. 他前天来看我了。
2. prep. 在......前面，当着......的面，向......，强调地点
She has to appear before the court. 她必须出庭受审。
3. prep. 在......之前，先于，强调次序
Those with babies can get on the bus before others. 带小孩的人可以先上汽车。
4. prep. 与其......(宁愿)
I'd shoot myself before I apologized to him! 我宁死也不向他道歉!
5. adv. 以前，强调时间
We've seen that film before. 我们以前看过那场电影。
6. adv. 在前面，向前，强调位置
Don't run before and after. 别跑前跑后。
7. conj. 在......前，强调时间
before的含义比较灵活，实际翻译时应结合具体情况机动处理。
1. 趁......
You should do it before it is too late. 趁现在还不算太晚，你应该赶快做它。
2. 尚未来得及
Before she could move, she heard a loud noise, which grew to a terrible roar. 她还没有来得及动弹，就听见有很响的声音，接着就成了可怕的隆隆轰鸣声。
Before they reached the house, a new great wave came, sweeping down trees, and sweeping them down too. 他们还没到屋子，又一个巨浪打来，冲倒了树，也冲倒了他们。
3. 要......先......
You should be a pupil before you become a teacher. 要当老师，先作学生。
