1、定义定义： 在复合句中由从句表示的状语在复合句中由从句表示的状语 称作状语从句 ， 它可以用来修称作状语从句 ， 它可以用来修 饰谓语（包括非谓语动词）、饰谓语（包括非谓语动词）、 定语或状语 ， 或是整个句子 。
定语或状语 ， 或是整个句子 。
准确掌握每一个连词的含义准确掌握每一个连词的含义 是掌握状语从句的关键 。
是掌握状语从句的关键 。
同时要注意主从句的时态呼应 。
同时要注意主从句的时态呼应 。
状语从句一般分为九大类状语从句一般分为九大类 状语从句类别状语从句类别: 时间状语从句时间状语从句 地点状语从句地点状语从句 原因状语从句原因状语从句 目的状语从句目的状语从句 结果状语从句结果状语从句 条件状语从句条 。

2、件状语从句 方式状语从句方式状语从句 比较状语从句比较状语从句 让步状语从句让步状语从句 1.时间状语从句：时间状语从句： 引导时间状语从句的连词有：引导时间状语从句的连词有： when, while, as, the moment, before, after, till, until, since, as soon as 等 。
等 。
请注意请注意 when, while, as 的区别的区别 When -当当时候时候, 通常指通常指 某一特定的时间点 ， 主句与从某一特定的时间点 ， 主句与从 句的动作同时发生 。
句的动作同时发生 。
When I opened the window, I saw hi 。

3、m come up. When I have time , I will go to see you. When I came home, I met an old schoolmate of mine. He said he would tell her about it when he saw her. *注意：注意：在时间状语从句中 ， 主在时间状语从句中 ， 主 从句都是将来的动作或状态时 ， 从句都是将来的动作或状态时 ，习惯上主句用将来时 ， 从句用习惯上主句用将来时 ， 从句用 一般现在时 。
一般现在时 。
When - 正在正在的时候 ， 突的时候 ， 突 然然 。
通常主句是进行时或 。
通常主句是进行时或 be。

4、about to 时 ， 在翻译的时候 ， 时 ， 在翻译的时候 ，when 可以译成没想到或突然 。
可以译成没想到或突然 。
I was walking along the street , when I met him. I was about to fall asleep when my sister came in. One evening, little Hans was sitting near the fire when he heard a loud knock at the door. When 当从句是进行时 ， 主句当从句是进行时 ， 主句 是一般时 ， 往往表示不满 。
是一般时 ， 往往表示不满 。
So 。

5、meone knocked at the door when I was having breakfast. When I was leaving the house, the postman arrived. When the children had gone to bed, she began to prepare her lessons. When=after While -在在期间 ， 往往指期间 ， 往往指 一段时间 。
一段时间 。
While we were in America, we saw him twice. While we were talking, he came in. St 。

6、rike while the iron is hot. While -表示一种不满情绪 ， 表示一种不满情绪 ，意思是这边在干某种重要的事 ， 意思是这边在干某种重要的事 ，而另一边在享受等 。
而另一边在享受等 。
We are cleaning the classroom while they are playing the football. The soldier faces the powder while the beauty powder the face. While I am washing the floor, you can be cleaning the windows. As -。

7、一边一边一边一边, 随着随着 She was doing her homework as she was listening to the music. As she grew older, she became more beautiful. As - 当当时 ， 指一个动作时 ， 指一个动作 紧接着一个动作发生 ， 从句通紧接着一个动作发生 ， 从句通 常用进行时 。
常用进行时 。
As I was going out, it began to rain. I saw Mary as she was going on the bus. As he was eating his breakfast, he he 。

8、ard someone knock at the door. Someone patted me on the shoulder as I was standing before the shop window. The moment - 一一就就 =as soon as , immediately, -Did you remember to give Mary the money you owed her? -Yes, I gave her the moment I saw her. Not until - 直到直到才才 He didnt leave the office until he。

9、finished the work. =He left the office when he finished the work. Not until 可以和可以和 when 互换互换 Before - 在在之前之前 The passengers should arrive at the airport an hour before the flight departs. Did you work as a stewardess before you come to this company? It was not long before I forgot it all. (It was /w 。

10、ill be before 是常用句型是常用句型) He ran off before I could stop him. After - 在在 之后之后 The customer left the ticket counter after he had a quarrel with the ticket agent. The plane took off after the air traffic controller gave clearance. Since -自从自从, 通常主句通常主句 用现在完成时用现在完成时 I have never been there again since。

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标题：2017|2017高考英语语法专题复习：状语从句