7. Try _______he might, he couldn’t get out of difficulty.

A. when　　　　　 B. where　　　　 C. till　　　　　 　　　D. as

6. He speaks English _____________he speaks his mother tongue.

A. so good as　　　　 B. as good as　　　　　 C. so well as　　　　　 D. as well as

5. It is ten years ____________I left home.

A. when　　　　 B. after　　　　　　 C. since　　　　　　　 D. as

4. Why not buy a cheaper one, _____________you don’t have enough money?

A. since　　　　　 B. because　　　　 C. for　　　　　　 D. though

3. It was __________it rained heavily that they didn’t come.

A. as　　　　　 B. because　　　　　 C. for　　　　　　 　D. since

2. -Why do you drink so much coffee?

-Well, _________it doesn’t keep me awake in the nights; I see no harm in it.

A. although　　　 B. if　　　　 C. unless　　　　　 D. while

1. Not until all the fish died in the river __________how serious the pollution was.

A. did the villagers realize　　　　　　　 B. the villagers realized

C. the villagers did realize　　　　　　　 D. didn’t the villagers realize

10．省略现象

有些表示时间、地点、条件、方式或让步等的状语从句中，如果谓语含有动词be，主语又和主句中的主语一致，或者主语是it，常把从句中的主语和谓语的一部分(特别是动词be)省略掉。注意状语从句中从句的省略现象

(1)连接词 + 过去分词

Don’t speak until spoken to.= Don’t speak until you are spoken to.

Pressure can be increased when needed.= Pressure can be increased when it is needed

Unless repaired, the washing machine is no use. =Unless it is repaired, the washing machine is no use.

(2)连词 +　现在分词

Look out for cars when crossing the street(= when you are crossing …).过街时当心车辆。

(3)连词 + 形容词/其他

常见的有it necessary、if possible、when necessary、if any等。

She hurriedly left the room as though /if angry (= as though/if she was /were angry…).

她急匆匆地走出屋去，好象很生气的样子。

If possible, I’d like to have two copies if it (= if it is possible,…).　 可能的话，我想要两本。

She advised me not to say anything unless asked (= unless I was asked).

她劝我别说什么，除非有人要我说。

As a young man, he studied law and became a lawyer(= As/ When he was a young man,…).他年轻时就学了法律，并当了律师。

状语从句基础训练题

9． 让步状语从句

让步状语从句由although(尽管), though(尽管), however(无论怎样),whatever(无论什么), whoever(无论谁), whomever(无论谁), whichever(无论哪个),whenever(无论何时), wherever(无论哪里), whether(是否), no matter (who, what, where, when) (无论……), even if(即使), even though(即使)等词引导。

We won’t be discouraged even if(=even though) we fail ten times.我们就是失败十次也不泄气。

It was an exciting game, though / although no goals were scored.

那是一场精彩的球赛，尽管一个球都没进。(though, although不能与 but连用)

Whether you believe it or not, it’s true.不管你信不信，这是真的。

However (=No matter how) expensive it may be, I’ll take it.无论它有多贵，我也要买下它。

Don’t let them in, whoever(=no matter who) they are.不管他们是谁，别让他们进来。

No matter what I say or how I say it, he always thinks I’m wrong.无论我说什么或怎么说，他总认为是我错。

连词as也可以引导让步状语从句，但从句中要用特殊语序。如：

Young as he is, he knows a lot=Though he is young 或Young though he is, he….

他虽然年轻，但懂得很多。(though 也有这种用法，可以替换as,但although没有这种用法)

though还可以用作副词，放在句末。如：

It was hard work;; I enjoyed it, though=It was hard work, but I enjoyed it.那工作很苦但是我喜欢干

一般情况下，unless相当于if…not，可以互换。如：

I won’t let you in unless you show me your pass = I won’t let you in if you don’t show me your pass.如果你不出示通行证，我就不让你进来。

8． 比较状语从句

比较状语从句常由than(比), as(与……一样)等词引导：

It rains more often in Shanghai than in Beijing.上海下的雨比北京的多。

Our country is as big as the whole of Europe.我们的国家同整个欧洲一样大。

The result was not as/so good as I had expected.结果不如我预料的那么好。

常见句型：the +比较级，the +比较级

The busier he is, the happier he feels.他越忙越开心。