状语从句分为很多种：原因、条件、让步、结果、目的、时间、地点等。

例如：If you come tomorrow, you will see me here.（条件状从）

When I left home, She was writing a letter. （时间状从）

Though he worked hard, he failed many times. （让步状从）

I got up early so that I could catch the first bus. (目的状从)

He was late because he fell I'll. （原因状从）

He lives where the sunlight is fine. (地点状从)