常见的时间状语从句1

由when, while, as引导的时间状语从句

When you think you know nothing, then you begin to know something.

当你以为自己一无所知的时候，你就是在开始知道一些事物了。
Strike while the iron is hot.　趁热打铁。
Will you watch my clothes while I have a swim？

我游泳的时候，请你照看一下我的衣服。
You can feel the air moving as your hand pushes through it.　

当你的手在空气中挥动的时候，你就能感觉到空气在流动。
Our headmaster laughed as she spoke.

我们的校长边谈边笑。

注意：1。when, while和as的区别：when引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词。并且when有时表示“就在那时”。
   When she came in, I stopped eating.她进来时，我在吃饭。
   When I lived in the countryside, I used to carry some water for him.

住在农村时，我常常为他担水。
We were about to leave when he came in.

我们就要离开，就在那时他进来了。

2。While引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生（或者相对应）。并且while有时还