时间状语从句
时间状语从句:
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,又可以是瞬间动词。并且when有时表示“就在那时”。 例如: When she came in, I stopped eating.她进来时,我停止吃饭。(瞬间动词)
When I lived in the countryside, I used to carry some water for him.当我住在农村时,我常常为他担水。(延续性的动词)