【教育资料】牛津上海版高二英语-状语从句二(自制,超好用)学生版学习精品

高二状语从句专题二

（本部分主要讲条件、时间状语从句及让步状语从句，让学生通过例句来总结知识点，适合自主学习性比较强的学员）

1.状语从句定义：

状语从句在复合句中起的作用，用于修饰主句中的、

和等。状语从句一般由连词引导，连词不充当任何成分，只起连接作用。根据它的意思，可分

为、、、、、、、、状语从句。

2.引导状语从句的连词叫，位置可放在或，放在句首时，常用逗号与主句分开；放在句末时，从句前面往往不用逗号。

NO.1条件状语从句

带上一件外衣吧，以防天气转凉了。

作车租车去，免得开会迟到。

扩展：in case 的用法注意事项

1）i n case 与in case of性质不同：

in case 可用作和；

in case of 用作。

如发生火灾，请按铃。

沿江筑了堤坝以防有洪水。

2）in case与if有时意思不同：

明天我要来，以备安找我。

如果安找我，我明天就来。

b. if和unless 表示“，；”的意思，相当于有时二者可以换用。

你们如果有任何疑问或意见，可以现在提出。

如果你明天不去看他，他会生气的。

除非你明天去看他，否则他就会生气的。

C. 和表示“只要”的意思

当然可以，只要他们能理解。

只要还活着，我就要学习。

很好，只要大家都参加。

只要用心学，什么都可以学好的。

d. //表示“在……的条件下”

在材料供应稳定的前提下，我们能够按时完成任务。

如果你现在到了机场，你可以直接乘坐巴士到酒店。

e. once表示“”

一旦我杀了你，你就不能存活了。

4. 条件状语从句的时态

遵循原则：

1）

他结束在这儿的学习之后，将会成为一名医生。

明天如果不下雨，我们就出发。

2）

如果你弄到了那本书，告诉我一声。

如果他想看城市风光，他可以做城市观光车。

3）

如果你有很多钱，你想要做什么？

如果我有空，我希望去看看她。

4）在有些句子中，主、从句都可用一般现在时，如：

如果你打这个电话号码，不会有人接。

如果你按这个开关，计算机就会启动。

专题精讲

1. Small sailboats can easily turn over in the water _________they are not managed

carefully.

A. though

B. before

C. until

D. if

2. In time of serious accidents, we know some basic things about first aid, we can save lives.

A. whether

B. until

C. if

D. unless

3. My parents don’t mind what job I do I am happy.

A. even though

B. as soon as

C. as long as

D. as though

4. environmental damage is done, it takes many years for the ecosystem（生态

系统）to recover.

A.Even if

B. If only

C. While

D. Once

5.

—What would you do if it tomorrow?

—We have to carry it on, since we’ve got everything ready.

A. rain

B. rains

C. will rain

D. is raining

专题过关

选择

1.I think our boat can pass the treacherous water cautiously handled.

A. until

B. if

C. lest

D. with

2. I'll give you a lift I get home you get off.

A. before... if

B. after... as

C. if... before

D. until ...

before

3. You'll succeed in time you study hard.

A. unless

B. as long as

C. even if

D. even

though

4. The robber told him that he had better keep silent he wanted to get into trouble.

A. if

B. unless

C. otherwise

D.

whether

5. I have made a promise anyone can tell me the secret, I'll give him a little present.

A. that if

B. that

C. when

D. so

long as

6. Don't let her leave the department she is not ready to.

A. if

B. though

C. unless

D. till

7. I wrote these words down I should forget.

A. for

B. so

C. lest

D. since

8. We are sure to do the work well we don't lose heart.

A. for

B. so long as

C. as if

D. since

9. He would be punished he should make the same mistake again.

A. unless

B. if

C. provided

D. lest

10. Anyone can borrow books from this library he keeps them clean and returns them in time.

A. even if

B. unless

C. so that

D. as

long as

11. ______ you return those books to the library immediately, you will have to pay a fine.

A. Until

B. Unless

C. If

D.

Provided

12. The parents did not allow their son to swim in the sea he might have an accident some day.

A. for fear that

B. in case of

C. besides

D. and

that

13. It is a gripping story and one can't put it down one has finished reading it.

A. after

B. when

C. unless

D. until

14. They agreed to rent the house the roof should be repaired.

A. on condition that

B. as soon as

C. when

D. unless

15. The more civilized man has become, he is limited by the disadvantage

of his environment.

A. and the more

B. the less

C. test

D. and

the less

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