初中英语里所有介词的用法

一、介词按其构成可分为：
1. 简单介词 at, in, on, to, since, until等。如：

He's worked there since 1998.

2. 复合介词 into, onto, out of等。如：

She is out of school. 她毕业了。

3. 二重介词 from under, from behind, from out of, until after, except in等。如：

I'm from out of town. 我是从城外来的。

4. 短语介词 because of, instead of, in spite of等。如：

I went back not because of the rain, but because I was tired.我回去不是因为下雨，而是因为我累了。

二、介词的作用：

1. 表示地点： after, along, at, below, by, of, near, over, through, under等。如：

Near the village the boys are skating on the ice. 男孩子们正在村子附近的冰上滑冰。

They lay down under the shade of a tree. 他们躺在一棵树的树阴下。

2. 表示时间： about, after, across, at, during, for, in, of, till, until等。如：

After class he will tell us about the accident. 课后他将告诉我们有关事故的情况。

A heavy rain has been falling across three days. 一场大雨下了整整三天。

The accident happened durin