高中英语状语从句讲解及练习

状语从句

在复合句中作状语，位置灵活。

状语从句可分为时间状语从句，目的状语从句，条件状语从句，让步状语从句，地点状语从句，原因状语从句，方式状语从句，结果状语从句。

（一）时间状语从句

1.when, as, while

a.when表时间，从句既可以用延续性动词，又可以用瞬间动词。

Eg: When I get there I will call you.

如果when引导的时状的主语与主句的主语相同，而从句的谓语又是be动词时，那么从句中的主语与be 可省。

Eg：When （you are）in trouble, you can ask her for help.

如果when引导的时状的主语与主句的主语相同时，往往可以用“when+分词”的形式代替该状从。Eg：When I came into the room(When coming into the room), I found the light was off.

b.while表时间，从句需用延续性动词，或者主句的动作发生在从句的动作进行过程中。主句的谓语动词

通常是非延续性动词。

Eg: He came in while I was reading a book.

I met her while I was in school.

c. as表时间，与when相似，但侧重强调主从句动作同在时间点或同时间段进行。同时可表示主句的动作随着从句的动作的变化而变化。

Eg: He jumps as he sings.

As the wind rose, the noise increased.

2.before(在……之前)与after（在……之后）

Eg：See me before you leave.

I saw them after I arrived.

3. till与until

肯定形式表示的意思是"做某事直至某时"。否定形式表达的意思是"直至某时才做某事"。

Eg: Wait till/untill I call you.

等着直到我叫你。

She didn't arrive till/until 6 o'clock..

她直到6点才到

但是置于句首时只可用untill.

Until you told me, I had heard nothing of what happened. 直到你告诉我以前，出了什么事我一点也不知道。否定形式有另外两种表达方式：

(1)Not until …在句首，主句用倒装。

Man did not know what heat was until the early years of the 19th century.

=Not until the early years of the 19th century did man know what heat was.

(2)It is not until…that…

He will not go to bed until his mother comes home.

=It is not until his mother comes home that he will go to bed.

4. as soon as/the moment/the instant/the second/the minute/immediately和hardly/scarcely…when, no sooner…than

a. as soon as/the moment/the instant/the second/the minute/immediately 表示主句和从句的动作同时发生。译为“一……就”

Eg：As soon as she heard the news, she began crying.

b. hardly/scarcely…when, no sooner…than都可以表示"一……就……"的意思，但主句谓语动词一般要用过去完成时，从句谓语动词要用一般过去时。

Eg：I had hardly / scarcely got home when it began to rain.

I had no sooner got home than it began to rain.注意：如果hardly, scarcely 或no sooner置于句首，句子必须用倒装结构：Hardly / Scarcely had I got home when it began to rain.

No sooner had I got home than it began to rain。

1. We called the First - Aid Center_______ the traffic accident happened.

A. immediately

B. shortly

C.quickly

D. hurriedly

2. The roof fell _____he had time to dash into the room to save his baby.

A. before

B. as

C. after

D. until

3. A good storyteller must be able to hold his listeners’ curiosity he reaches the end of the story.

A when

B whenever C.after D.until

4. I had just started back for the house to change my clothes _______ I heard the voices.

A. as

B. for

C. while

D.when