(完整版)状语从句练习

状语从句

状语从句：指把一句子当着副词作状语时，修饰动词、或整个句子；

根据它在句中的作用可分为时间、地点、原因、条件、目的、结果、让步、方式和比较等从句；

状语从句前一般由连词(从属连词)引导，也可以由词组引导。

它常位于句首；若位于句中，常用逗号与主句隔开；位于句尾时可以不用逗号隔开。

一、时间状语从句

1. 通常由以下连词引导：when / while / as/ after/ before/ as soon as/ since/ till /until / by the time

2. 在时间状语从句中，要注意时态一致。（主将从现）

1).when当…..的时候: Mozart started writing music when he was four years old.

2).while 在…期间: He visited a lot of places while he was traveling.

3).as 在…的同时；一边...一边... : He smiled as he stood up.

4).after在...之后: He left the classroom after he had finished his homework the other day.

5).before 在...之前Mr. brown had worked in a bank for a year before he came here.

6).as soon as 一...就... We began to work as soon as we got there. I will write to you as soon as i get home.

7).since 自...以来(到现在) Mr green has taught in that school since he came to china three years ago.

8) till /until 直到: They walked till /until it was dark. Tom didn’t leave home till / until his father came back.

难点——as/ when/ while的辨析

as when while都表示主、从句动作同时发生，三者差异如下：

as 表示“一边...一边＂/随着, 强调两个动作同时进行，I am cooking as I am singing.

when 当…..的时候, 从句动作可在主句动作＂之前＂或＂之后＂发生lit was raining hard when (as) i got there.

还可表and then; at that moment (正在那个时候/突然)：I am leaving for Beijing when the phone rang.

while 在…期间从句动作为延续性动词或状态词I am cooking while I am singing

然而（(表转折，对比）she thought I was talking about her daughter, while I was talking about my daughter.

Mother was worried because little Alice was ill, especially as (when/ while) father was away.

二、条件状语从句要点：状语从句由连词if（如果）、unless (=if not)（除非）引导。

1.if it doesn’t rain tomorrow, we will go hiking.

2.you will get good grades if you study hard.

3.i will go to the party unless he goes there too.

4.you will be late unless you leave immediately.

难点提示：用条件状语从句时要注意时态的正确使用,（主将从现）.

三、原因状语从句要点: 由连词because, since既然, as因为, for因为等词引导

.I didn’t go to school yesterday because i was ill.S ince every body is here, let’s begin our meeting.

As you are in poor health, you should not stay up late. I asked her to stay to tea, for i had something to tell her.

.难点——because , since , as , for,辨析

在语气上，because 最重,是直接理由,回答why 时只能用它. 其次是since, as ,一般不表示原因, 而是表明

理由, 进一步说明.(译为：由于，既然)；for (常用于推断),表示理由.

四、地点状语从句要点: 由连词where和复合关系词wherever (=no matter where )）“无论哪里”引导.

where there is a will , there is a way.Wherever you go , I go too. 无论何处，多句首)。

wherever there is smoke , there is fire. 无风不起浪。(谚语)

While she was wondering where to go , she met a policeman.

五、目的状语从句由连词so that, in order that 引导。结果状语从句由连词, so…that, such…that引导。

1.so…that 如此…以至于the scientist’s report was so instructive that we were all very excited.