状语从句
1. 在主从复合句中修饰主句中的动词，形容词，副词等的从句叫状语从句。可分为，时间
状语从句，地点状语从句，原因，目的，结果，条件，让步，比较和方式状语从句。
2. 时间状语从句
起时间状语作用的句子；
可放在句首，句中和句尾
常用引导词: when, while, as, after, before, since, till, until, the moment, hardly …when , no sooner …than
+ whe n, while, as 的用法
1） when用法最广，常可代替while和as,在while引导的从句中，动词只能是延续性
的
When the fire broke out, all the stude nts were sleep ing soun dly.
The teleph one rang while I was tak ing a bath.
2）当两个表示时间延续的动作同时发生而又有对比意味的时候，用while，在这样的复合句中，主句从句的时态通常是相同的。
Father was preparing a report while I was playing PC games.
3）常用as的情况：一边…一边；表示随着短暂动作的发生，另一行为伴随发生
As he talked on, he got more and more excited.
They talked as they walked along the river.
My cap was blow n away as I sat dow n.
+ until和till的用法
表示一直到…"时，主句和从句都用肯定式；
I will wait un til/ till the concert is over.
表示直到…才…”是，主句用否定，从句用肯定式。
They can ' t go un til Sun day.
丄si nee的用法
since引导的从句中，如果是持续性动词，往往理解为某一状态的终止。
He has written to me freque ntly si nee he was ill.自从他病好以来，他常写信给我。
It ' s been a year ever since I worked here.
+ 主将丛现。时间状语从句一般不用将来时。因此如果主句是将来时，时间状语从
句一般要用现在时。
we lStart when the team leader comes.
丄一…就… 的几种常用的表示方法
1) as soon as
As soon as he heard the n ews, he jumped with joy.
2) Immediately
I ' II give you an answer immediately I ' ve finished reading your file.
3) Directly
Directly you feel any pains, you must go to the doctor.
4) In sta ntly
Please give me a phone call instantly you arrive.
5) no sooner tha n
No sooner had I begu n to talk tha n he rang offl
I had no sooner begu n to talk tha n the n he rang off.
6) hardly …when
Hardly had I told him my n ame whe n he stopped liste ning.
I had hardly told him my n ame whe n he stopped liste ning.
3. 地点状语从句
引导词where, wherever, any where, everywhere ,no where
一般情况下，只要在where前面加上to/in/from the place，就可以变为定语从句
We live where the road crosses the river.
We live in a place where the road crosses the river.
4. 原因状语从句
弓丨导词：单词一because, as, since 短语一now that, for the reason that, in that, seeing that
- Because, as, since, for
1) because的语气最强，用以回答why引起的提问，可表示已知或未知的世事。可与only ,merely, just ,not连
用，所引导的从句常用于主句之后，在表示强调的时候可置于主句之前(可用于强调结构)
He was puni shed only because he broke the law.
It was because that I went to tow n yesterday.
2）as的语气最弱，不可用于强调，常至于主句之前。
As he was in a hurry, he left this bag home.
3）since的语气也比较弱，常表示对方已知的事实，往往相当于汉语的既然。不用于强调。常置于主句之前。Since she can ' t an swer this questi on, it is better to ask some one else.
4）for连接并列句
We should be more careful, for it is already dark.
—now that
用于口语，表示较弱的原因，主从句因果关系不明显。既然，that可省略。
Now （that）you are grown up, you should not rely on your parents.
—for the reas on that
后跟一个同位语从句。
-that
be happy that, be glad that, be surprised that有时也被认为是原因状语从句
一in that
This experience is worth trusting in that it is based on scientific facts.
-when （既然）
I can ' t tell you anything when you won ' t listen.
How can he succeed when he won ' t work?
5. 目的状语从句
—in order that /so that
I hurried through my work in order that I could be in time for wonderful TV programs.
—for fear that
I ' m working hard for fear that I should fail.
-in case
I stayed all day at home in case you called.
6. 结果状语从句
-so that
so +副词、形容词+that
The text was so bori ng that I fell asleep.
so+ many /few/much/little+that
He has got so little money that his family had to live on welfare.
so + 动词+that
It so happened that he didn ' t receive my invitation.
-such that
such + a +形容词+可数名词单数、复数+that
It was such a terrible day that none of us would find an excuse for going out to play.
They are such good childre n that we all love them.
such+形容词+不可数名词+that
This was such fine music that it was worth listening to twice.
-That本身也可以引导结果状语从句
What have we done that you should be so angry with us?
7. 条件状语从句
弓丨导词：if, uni ess, as/so long as, once, in case, on con diti on that, suppos ing (that), providi ng (that),
provided (that), give n (that) 写作的时候，学会在文章里添加几个状语从句。
Providi ng/Suppos in g/Give n/Provided that you promise n ot to tell anyone else, I secret.
ll explair In case it rains, do not expect me.女口果下雨，就不要等我了。
亠真实条件句与非真实条件句
Uni ess you go at once, you will be late.
If we had eno ugh time yesterday, we could have done the work.
其实属于一种虚拟语气。第一种是真实条件句，表示可以实现，第二句是非真实条件
句，实现的可能性不大。
8. 让步状语从句
- Though和although基本相同，但是though可以当副词，although不可以
Young though she is, she has travelled to many coun tries to put on shows.
I ' ve bit of headache. It ' s nothing much, though.
—Even though 禾口even if
Even though the lear ning is slow and pain ful, the result is won derful.
Even if/ though you say so, I do not believe.
亠As
Pop star as she is, she still n eeds to improve.
Fail as I did, I would n ever give up.
—whether ( …)or no和whether … or …
-wh-ever类的用法
引导名词性从句，只能用wh-ever，不能用no matter wh-
I ' ll wait for you however late it is. = I ' ll wait for you no matter how late it is.
9. 比较状语从句
As …as not as/ so …as , thajnthe + 比较级，the+ 比较级
His han dwrit ing is not as good as yours (is).
The sooner you are back, the better it will be.
10. 方式状语从句
-As正如，像
Will you please do the experime nt as I am doing.
—as if 和as though
(1) 如果表述内容可能性很大，则用陈述语气look/seem/taste /smell等词连用
It looks as if it is going to rain.
(2) 表述的不是事实，则用虚拟语气
The young man with long hair looks as if he were a girl.
答案：1 — 5 DADBA 6—10 DCAAD 11 —15 BBAAD 16—20 BCBDA 21 —25 BAABA 26-30 CDDDD 31 —35 CBBAA 36-40 BBABC 41 —42 BDCDC 46-50 CDDCD
1. — What was the party like?
—Wonderful. It ' s years __________ I enjoyed myself so much. A. after
B. before
C. whe n
D. since
2. Mother was worried because little Alice was ill, especially ______ Father was away in France. A. as
B. that
C. duri ng
D. if
3. Why do you want a new job _________ y ou got such a good one already? A. that
B. where
C. which
D. whe n
4. After the war, a new school buildi ng was put up __________ t here had once bee n a theatre. A. that
B. where
C. which
D. whe n
5. You will be late _____________ y ou leave immediately. A. unl ess
B. un til
C. if
D. or
6. _________ , Mother will wait for him to have dinner together. A. However late is he B. However he is late C. However is he late
D. However late he is
7. If we work with a strong will, we can overcome any difficulty,
A. as well as
B. so often
as
C. so much as
D. as good as
11. The new secretary is supposed to report to the man ager as soon
12. The volleyball match will be put off if it
dinner table in 20 years from now.
A. what
B. how
C. however
D. whatever
8. We won ' t give up we should fail ten times.
A. even if
B. since
C. whether
D. un til
9. She does
n 't speak
her friend, but her written work is excellent.
10. He ' ll be happy
he may be.
A. whe n
B. if
C. because
D. wherever A. will arrive B. arrives
C. is arrivi ng
D. is going to arrive great it is.
as she
A. will rain
B. rains
C. rained
D. is rai ning 13. Remember to send me a photo of your son next time you to me. A. write
B. will write
C. are writi ng
D. would write
14. If city no ises
from in creas ing, people
shout to be heard even at the