精选优质文档-倾情为你奉上 状语从句用法详解在主从复合句中修饰主句的动词、形容词、副词等的从句叫状语从句。一 时间状语从句：起时间状语作用的从句。when, while, as, after, before, until/till, since, as soon as, immediately, the moment, every time, whenever等。1. when, while, as 1) when“当.的时候”，表示主从句的谓语动作同时发生或先后紧接着发生。I was very happy when I heard from you.When you deal with them, you should be cautious. When I was young, I went to town myself. （延续性动词）When the fire broke out, all the students were sleeping soundly.（非延续性动词）As
