what的用法

1. 表示“……的东西或事情”：

They’ve done what they can to help her.

他们已经尽力帮助了她。

What Mary is is the secretary.

玛丽的职务是秘书。

2. 表示“……的人或的样子”：

He is no longer what he was.

他已经不是以前的那个样子。

3. 表示“……的数量或数目”：

Our income is now double what it was ten years ago.

我们现在的收入是10年前的两倍。

4. 表示“……的时间”：

After what seemed like hours he came out with a bitter smile.

似乎过了几个小时他才苦笑着出来。

The young girl was too frightened to speak, standing there for what seemed like hours.

小女孩吓得不敢说话，在那儿站了几个小时。

5. 表示“……的地方”：

This is what they call Salt Lake City.

这就是他们称为盐湖城的地方。

6.what+主语+及物动词

What he says is reasonable.

What he says是主语从句，what在主语从句中作宾语。

7.What+主语+不及物动词/系动词+介词

The judge does not consider what each eyewitness looks like.

What each evewitness looks like是宾语从句，what在从句中作介词like的宾语