.
. （一）状语从句概述
定义 状语从句用作状语，是起副词作用的句子。
位置 状语从句可以放在主句之前，也可以放在主句之后，时间、条件、原因和让步状语从句放在句首时需要用逗号和主句隔开。
分类 根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。
作用 它可以修饰谓语、非谓语动词、定语、状语和整个句子。
（二）状语从句详解
1. 时间状语从句
引导词 用法 示例
when 意为“当…的时候”。When引导从句的谓语动词可以是延续性动词，也可以是瞬间动词。并且when有时表示“就在那时” A liar is not believed when he
speaks the truth.说谎者讲真话时也没有人相信。
When he arrives, I’ll call you.
When you laugh and smile,
your body relaxes.
while 意为“在…的时候，在…的同时”。While引导从句的谓语动词必须是延续性While I was standing at the
window, I saw several boys
running along the street. .
. 的，发生时间较长，并强调主句和从句的动作同时发生（或者相对应）。While有时还可以表示对比。 While John was watching TV,
his wife was cooking.
as 意为“一边…一边…”。As引导的动作是延续性的，发生时间较短，一般用于主句和从句动作同时发生；as也可以强调一前一后。 The writer was angry as he
was travelling on a train to
London because someone
had invaded his “space”.
He smiled as he stood up.
时间状语句翻译练习
When I was in junior middle school, I was slow / bad in math.
当我读初中的时候，我数学很糟糕。
When I grew older, I became more interested in music .
当我长大一些的时候，我变得对音乐更感兴趣了。
When the sports meeting takes place next week，20,000 volunteers will serve the
public warmly.
下周，运动会开始的时候，两万名志愿者将会热情地为大众服务。
Whenever I had difficulty in study, he always helped me patiently.
每当我学习有困难的时候，他总是耐心地帮助我。
When ／While ／As she was making a phone call，I was writing a letter.
当她在打电话时，我正在写信。
As years go by，China is getting stronger and richer．
随着时间一年一年过去，中国变得越来越富强了。
I have made great progress since he helped me with my study.
自从他帮助我学习以来, 我取得了很大的进步。
Mr. Brown had worked in a university for twenty years before he came to our middle
school..
布朗先生来我们中学之前已经在一所大学里工作二十年了。
Our teacher suggests that we should take notes as we listen.
老师建议我们边听课边做笔记。( take notes )
状语从句
（一）状语从句概述
定义 状语从句用作状语，是起副词作用的句子。
位置 状语从句可以放在主句之前，也可以放在主句之后，时间、条件、原因和让步状语从句放在句首时需要用逗号和主句隔开。
分类 根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。
作用 它可以修饰谓语、非谓语动词、定语、状语和整个句子。
（二）状语从句详解
1. 时间状语从句
引导词 用法 示例
when 意为“当…的时候”。When引导从句的谓语动词可以是延续性动词，也可以是瞬间动词。并且when有时表示“就在那时” A liar is not believed when he
speaks the truth.说谎者讲真话时也没有人相信。
When he arrives, I’ll call you.
When you laugh and smile,
your body relaxes.
while 意为“在…的时候，在…的同时”。While引导从句的谓语动词必须是延续性的，发生时间较长，并强调主句和从句的动作同时发生（或者相对应）。While有时还可以表示对比。 While I was standing at the
window, I saw several boys
running along the street.
While John was watching TV,
his wife was cooking.
as 意为“一边…一边…”。The writer was angry as he was As引导的动作是延续性的，发生时间较短，一般用于主句和从句动作同时发生；as也可以强调一前一后。 travelling on a train to London
because someone had invaded
his “space”.
He smiled as he stood up.
状语从句
在复合句子中修饰谓语（或其他动词）、形容词、副词或是整个句子的从句被称为状语从句。它可以用来表示时间，地点，原因，目的，结果，条件，方式，比较，让步等。主要考查不同种类的状语从句的连接词以及主句和状语从句的时态。
分类 引导词 例句
时间状语从句 由when , as, while, whenever,
after, before, until, since, as soon
as, by the time等引导 I will call you_____________________
他回来了我给你打电话。
地点状语从句 常由where, wherever等 Where there is water,there is life.
哪里有水，哪里就有生命。
条件状语从句 常用连词是if, unless ______________________,I will stay at home.
如果明天下雨，我将待在家里。
原因状语从句 最常用的连词是because, since,
as , for 等 由于天冷，我要待在家里。
_________________________________
目的状语从句 常用连词是so that, in order that She got up early______________________
她起床早是未来能赶上早班车。
结果状语从句 常由so…..that , such….that, so
that 等引导 He was_________________he could say
nothing.他那么兴奋，以至于什么也说不出来。
让步状语从句 可由although，though，even if，even though等引导。 _______________________,he knows a lot.
虽然他是一个孩子，但是他知道很多。
