(完整版)状语从句教案

（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.

after 意为“在…之后”。表示主句动作发生在从句动作之后。主句与从句的动作时间关系与before引导的从句相反。 With many hungry visitors waiting, don’t stay

too long at your table after you have finished.

If an early exit is necessary, you can leave after a

.

. （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.

1 冀教八年级

中考专题语法-----状语从句

状语从句用来修饰主句中的动词，副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句，地点状语从句，条件状语从句， 原因状语从句，结果状语从句，比较状语从句，目的状语从句，让步状语从句。

1. 时间状语从句

(1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。例如：

It was raining hard（rain hard 下大雨） when got to school yesterday.

While he was doing his homework, the telephone rang.

As he walked along（沿着走） the lake, he sang happily.

He had learned a little Chinese before he came to China.

After he finished middle school, he went to work in a factory.

(2)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。例如：

I’ll ring you up as soon as I get to New York.

I will tell him everything when he comes back.

He won’t believe it until he sees it with his own eyes.

(3)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。如果主句用否定式，其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。例如：

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.