在复合句中，起状语作用的从句称作状语从句。如果状语从句位于主句前，一般用逗号将其与主句隔开。状语从句按照意义和作用可分为：时间状语从句，地点状语从句，原因状语从句，条件状语从句，结果状语从句，目的状语从句，比较状语从句，方式状语从句，让步状语从句。

【重难点点拨】状语从句引导词

如：When I got to the airport, I suddenly remembered that I had left the ticket behind. （时间状语从句）

I will stand where I can see the students. （地点状语从句）

As / Since the school regulations are written quite clearly, there is nothing more to be explained. （原因状语从句）

I will not go to her party unless she invites me. （条件状语从句）

He will not give up smoking even though the doctor advises him to.（让步状语从句）

(1)判：去掉划出的从句，剩余句子成分完整;

(2)译：翻译句子，判断主句和从句的逻辑关系，选择合适的引导词。如：

We began to work as soon as we got there. 我们一到那就开始工作了。