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2021上海牛津版8年级下状语从句精讲及巩固提升有答案

作者:未知 时间:2021-01-12 阅读:( )

状语从句精讲及巩固提升

概念

用来修饰主句中的动词,副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句,地点状语从句,条件状语从句,原因状语从句,结果状语从句,比较状语从句,目的状语从句,让步状语从句。

 

结构:

①主句+从属连词+从句

Mum was cooking in the kitchen when I got home.

②从属连词+从句+逗号(,)+主句

When I got home, mum was cooking in the kitchen.

状语从句分类

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

1. 时间状语从句

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

2. 条件状语从句

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

常见句型转换题:

If...not = unless,在句型转换题中,if (如果)常常和unless(除非)and(那么)或or(否则)互换。

If you don't get up early, you will fail to catch the bus.(保持句意不变)

= You won't catch the bus unless you get up early.

=You should get up early, or you will miss the bus.

=Get up early, and you may/ will catch the bus.

 

3. 原因状语从句

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

because 和so 不能用于同一句子中,because表示原因未知,语气最强回答why的提问。 because

引导的从句可与because of引导的简单句互换。as 语气最弱,常常用于口语中,since和now that(既然)表示已知的原因,一般放在主句之前。

She didn't go to see the movie because the weather was bad.

=She didn't go to see the movie because of the bad weather.

The sports meeting was put off because the weather was bad.

=The sports meeting was put off because of the bad weather.

 

4. 目的状语从句

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

so that +从句=in order that+从句常与in order to 和so as to +短语互换,目的状语从句常常会和情态动词can, may, will, could, might, would等连用

He walked quickly so that he could get there on time.

=He walked quickly in order that he could get there on time.

=He walked quickly in order to get there on time.

=He walked quickly so as to get there on time.

 

5. 结果状语从句

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

So...that(如此.......以至于)在句型转换中常常会和enough to do 或者too...to互换,结果状语状语从句常常会和情态动词can, may, will, could, might, would等连用。

The boy is so young that he can't go to school. (保持句子基本意思不变)

=The boy is too young to go to school

=The boy is not old enough to go to school

 

6. 让步状语从句

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

解析:

although和though不和but连用,although放在句首,though位子不定。在句型转换中,although/though常常和but互换。如果是连续性动词可以用进行时表示。

Although it was very late, he was still doing his homework.( 保持句子的基本意思不变)

=It was very late, but he was still doing his homework.

 

7. 比较状语从句

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

as +adj. / adv.原级 +as的否定形式为 not as/ so +adj. / adv.原级 +as.比较状语从句中,从句的谓语常常省略。not as/ so...as在句型转换中常常和than互换; than 在句型转换中常常与最高级转换。

My bike is not as expensive as his. (保持句子的基本意思不变)

=His bike is more expensive than mine.

Tom runs more quickly than any other student in our school. (保持句子的基本意思不变)

= Tom runs most quickly in our school.

 

巩固提升

I. Choose the best answer.

1. You are not allowed to enter the theatre ______ you have a ticket.

A. because B. when C. if D. unless

2. We do morning exercises outside ______ the air is seriously polluted tomorrow.

A. because B. since C. if D. unless

3. I'll return next Thursday ______ something unexpected happens.

A. unless B. because C. since D. although

4. As I have something to tell him, I will wait ______ he comes back.

A. until B. as soon as C. when D. after

5. Jane won't take part in our class' activities voluntarily(自愿地) ______ she is asked to.

A. if B. unless C. because D. when

6. A: What would some students like to do after finishing their education?

B: They would like to start to work ______ they needn't depend on their parents.

A. as soon as B. although C. if D. so that

7. ______ hiking in the Gobi Desert is not easy, the girl still decided to have a try.

A. If B. Although C. When D. As

8. I knew nothing of the murder case ______ I read the newspaper report last night.

A. when B. because C. until D. since

9. You will surely realize your dream of being a scientist ______ you give it up halfway.

A. though B. if C. unless D. since

10. You will achieve nothing ______ you work hard in a proper way.

A. because B. if C. when D. unless

11. ______ this is your first visit to Shanghai, Let me show you around the city.

A. Although B. Since C. Unless D. When

12. This pet shop is losing his customers ______ its staff work slowly and often make mistakes.

A. so B. because C. until D. although

13. We'll have to cancel the school sports meeting ______ it snows tonight.

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

14. Nowadays many people travel abroad to spend the Spring Festival ______ it is a bit expensive.

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

15. I didn't know the new classmate ______ we met at a Yoga club yesterday.

A. until B. after C. if D. though

16. The earth was so seriously polluted ______ we must take action to save the planet.

A. as B. that C. so D. before

17. ______ you've finished the work, you had better have a good rest.

A. Although B. Unless C. Whether D. Now that

18. The scientists will succeed in their experiment ______ they give up.

A. unless B. if C. after D. until

19. ______ you put your heart into the book, you won't understand it.

A. Unless B. Until C. Because D. Though

20. ______ all the students are here, why don't we start our class meeting right now?

A. Although B. When C. Since D. Before

21. I don't like apples ______ I know it's good for my health.

A. because B. since C. when D. although

22. George will soon fall behind ______ he finds a better way and applies it to practice.

A. because B. when C. until D. unless

23. ______ Louis got only a silver medal this time, he was still more confident about the future.

A. Though B. Because C. If D. As soon as

24. A new school library will be built soon ______ its design is passed at the meeting.

A. though B. until C. if D. unless

25. She turned her face away from him ______ he wouldn't see her tears. A. although B. unless C. because D. so that

 

Ⅱ. Rewrite the sentences as required. (按要求改写句子)

1. This movie was boring enough. He fell asleep halfway.(合并成一句)

This movie was __________ boring __________ he fell asleep halfway.

2. Thomas does exercise every day so that he can keep fit. (保持句意基本不变)

Thomas does exercise every day __________ __________ to keep fit.

3. This kind of computer is very small. You can put it in your pocket. (合并为一句)

This kind of computer is __________ small __________ you can put it in your pocket.

4. Alice took up French in college in order to communicate with friends in Paris.(句意不变)

Alice took up French in college __________ __________ she could communicate with friends in Paris.

5. Tom's cousin does a part-time job. He can get more working experience.(保持原句意思)

Tom's cousin does a part-time job __________ __________ to get more working experience.

6. The cook was too busy to notice the overcooked soup. (保持句意不变)

The cook was __________ busy __________ he didn't notice the overcooked soup.

7. We need to design a program in order to make computers recognize our voice.(保持句意不变) We need to design a program __________ __________ computers can recognize our voice.

8. It rained heavily this morning. Most of the students couldn't go to school on time. (保持句意基本不变)

It rained so heavily that most of the students __________ __________ go to school on time this morning.

9. Mr. Brown worked very hard so as to make more money for his family.(保持原句意思不变) Mr. Brown worked very hard __________ __________ he could make more money for his family.(改为被动语态)

10. Some students will realize the importance of study after they leave school.(保持句意不变) Some students __________ realize the importance of study __________ they leave school.

11. They were so confident that they beat Class Two in the final ball game. (改为简单句) They were confident __________ __________ beat Class Two in the final ball game.

12. Hurry up, or you will miss the first flight to San .Francisco.(保持职句意思不变) __________ you __________ hurry up, you will miss the first flight to San Francisco.

2021上海牛津版8年级下状语从句精讲及巩固提升有答案

 

Keys:

Ⅰ 1-5 DDAAB 6-10 DBCCD 11-15 BBABA 16-20 BDAAC 21-25 DDACD

Ⅱ 1. so, that 2. in order 3. so that 4. so that 5. in order 6. so that

7. so that 8. failed to 9. so that 10. won't, until 11. enough to 12. If don't

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