状语从句
用作状语的句子叫状语从句。
引导状语从句的连接词是从属连词。
状语从句可以在句首，也可以在句尾。
debugging根据其用途可分为：时间状语从句、地点状语从句、原因状语从句、结果状语从句、目的状语从句、条件状语从句，比较状语从句meetwith等。
A. 时间状语从句：
时间状语从句表示时间，常用连接词有：when(当……时)，while(当……时)，as(当……时)，before(在……之前)，after(在……之后)，since(自从)，until(直到)， as soon as(一……就)，once(一旦……就)等。例如：
例句：
I didn’t go to bed until I finished my homework. 我直到做完作业才去睡觉。
I can listen to the radio while I work. 我可以边听收音机边工作。
( )1.Someone called me up in the middle of the night，but they hung up ________I could answer the phone.
A. as B. since C. until D. before
( )2.It is ten years ________he smoked.
A. that B. when C. since D. while
( )3.I came ________I heard the news.
A. until B. as soon as C. immediately
tida
( )4.You can’t watch TV ________ you finish your homework.
A. before B. if C. while D. as
( )5.Kate was so glad she received a Christmas gift from his grandparents away in Thailand.
网上买衣服A. that B. when C. if
( )6.— When will you come to Daqing?
— I will call you _____I arrive.
A. till B. while C. as quickly as D. as soon as
注意：
① 时间状语从句中，一般要用一般现在时代替一般将来时，一般过去时代替过去将来时。
例如：
I will telephone you when he comes. 他来了我给你打电话。
I’ll stay here until you come back. 我会呆在这里，直到你回来。
( )1. I’ll be back before you ________.
A. will leave B. will have left C. leave D. would leave
( )2.The problem won’t be ttled until we ________a chance to discuss it thoroughly.
A. have had B. will have C. will have had D. would have
( )3.I will nd you an e-mail as soon as I____ in Canada.
A. arrive B. arrived C. am arriving D. will arrive
( )4.I’ll give it to Jim as soon as I ____him tomorrow.
A saw B. will e C. e D. have en
( )5.The new cretary is suppod to report to the manager as soon as she ________.
A. will arrive B. is going to arrive C. arrives D. is arriving
② when引导时间状语从句，表示主句的动作和从句的动作同时或先后发生，从句的谓语可以是延续性动词，也可以是瞬间动词。例如：
He was working when I went in. 我进去时他正在工作。
When she heard the news, she began to cry. 她听到这个消息，她哭了起来。
但是while引导的状语从句中常用延续性动词或表示状态的动词，意思是“在……期间”。
They rushed in while we were singing. 我们唱歌时，他们冲进来。
as引导状语从句，强调同时发生，不分先后。可以译成“随着”或“一边……一边”。
John sings as he walks home. 约翰一边往家走一边唱歌。
( )1、I my homework while my parents TV last night.
A、did; have watched B、was doing; were watching
C、had done; were watching D、would do; were watching
( )2、When my father got home, I a letter to my friend.
美籍华人英语 A、write B、am writing C、wrote D、was writing
( )3、He watched a football game on TV while a cup of tea.
A、drank B、was drinking C、to drink D、drinking
③ while还可以表示两者之间的对比关系。翻译中国译成“然而”。
例如：
I like playing football, while Tom likes listening to music.
我喜欢踢足球，而汤姆喜欢听音乐。
( )He got excited at the news，________ I was calm.
A. when B. while C. becau D. after
resulting ④ since引导状语从句，主句常用现在完成时，从句常用一般过去时。
We have been friends since we met in Beijing. 自从我们在北京遇到就一直是朋友。
It has been six years since she left school. 自从她毕业已经有六年了。
( )I saw Mr. Smith last Sunday. We had not en each other ________I left London.
A. as B. before C. since D. till
⑤ until/ till 引导时间状语从句，当主句的谓语动词是瞬间动词时，主句常用否定形式，not…
until意思为“直到……才”。
He didn’t go to bed until he finished his homework. 他直到做完作业才睡觉。
B. 地点状语从句：地点状语从句表示地点。其连接词有where(哪里)，wherever(无论哪里)novelty例如：
Put it where you find it. 把它放在原来的地方。
中口口试
You can sit wherever you like. 你喜欢坐在哪里就坐在哪里。
( ) 1.________he is, he will be thinking of you.
A. Wherever B. Where C. Now that D. As soon as
( )2.You should make it a rule to leave things ________you can find them again.
A. when B. where C. then D. there
( )3.After the war，a new school building was put up ________there had once been a theatre.
A. that B. where C. which D. when
C. 原因状语从句：原因状语从句表示原因或者理由。其连接词有：becau(因为)，as (因为)，since(既然)等懒惰的意思。例如：
I often eat carrots becau they are good for my health.
我经常吃胡萝卜是因为对我的身体有好处。
As I don’t know the way, I had to ask the policeman.
