as的所有用法总结

1. As可以引导定语从句。有时可译为“正如”；

2. As 还可引导原因状语从句，“因为，由于”；

3. As还可引导时间状语从句，“当，随着”；

4. As还可引导方式状语从句，“按照”；

5. As还可引导让步状语从句。“尽管”。

例句

As we can see, he is a Chinese.

正如我们所看到的.，他是一个中国人。

As he is so lazy, he never cooks by himself.

由于他很懒，他从不自己做饭。

As the weather is colder and colder, the leaves of the tree is less and less.

由于天气越来越冷，树上的叶子越来越少。

You must do the work as I have told you.

你必须按照我告诉你的那样做这项工作。