摘要：解析：“if”表示“如果”，引导条件状语从句，句意是“如果明天不下雨，我们就去公园” 。

中考英语必备状语从句选择填空专练四十道

1. We will go to the park ______ it doesn't rain tomorrow.

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

2. She didn't leave the classroom ______ she finished all the homework.

A. while B. until C. if D. because

3. ______ I got to the bus stop, the bus had already left.

A. When B. While C. As soon as D. Since

4. You should go over your test paper ______ you hand it in.

A. before B. after C. though D. because

5. We should plant more trees ______ the environment can be improved.

A. in order to B. so that C. as soon as D. since

6. ______ he was very tired, he kept working.

A. Because B. Although C. As D. Since

7. The little boy saved every coin ______ he could buy his mother a present on Mother's Day.

A. so that B. as soon as C. no matter D. such that

8. I'll call you ______ I get to Beijing.

A. since B. until C. as soon as D. while

9. ______ they are brothers, they don't look the same at all.

A. Because B. Though C. When D. As

10. ______ it rained heavily, he still went to school on time.

A. Even though B. As soon as C. Because D. Since

11. You won't pass the exam ______ you work hard.

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

12. The students didn't stop talking ______ the teacher came in.

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

13. ______ I was walking in the street, I saw an accident.

A. While B. When C. As soon as D. Since

14. We should protect the earth ______ we can make a better world to live in.

A. so that B. in order to C. as soon as D. even though

15. ______ he is young, he knows a lot.

A. Although B. Because C. As D. Since

16. I'll give the book to him ______ he comes back.

A. since B. as soon as C. before D. until

17. You can't leave the classroom ______ you finish your homework.

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

18. ______ I got up late this morning, I missed the early bus.

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

19. The old man was so tired ______ he couldn't walk any farther.

A. that B. which C. as D. when

20. ______ you study harder, you won't catch up with your classmates.

A. If B. Unless C. As D. While

21. ______ he was watching TV, his mother was cooking.

22. We'll go for a picnic ______ it is sunny tomorrow.

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

23. The little girl was ______ afraid ______ she began to cry.

A. too; to B. so; that C. such; that D. enough; to

24. ______ I got to the cinema, the movie had been on for ten minutes.

25. We should do everything ______ we can to protect the environment.

A. that B. which C. what D. how

26. ______ it was very cold, he went out without an overcoat.

27. I'll tell him the news ______ he comes back.

A. as soon as B. since C. until D. before

28. You can't learn English well ______ you work hard.

29. ______ I was reading, my sister was watching TV.

30. We'll have a sports meeting ______ it doesn't rain next week.

31. The box is ______ heavy ______ I can't carry it.

32. ______ he was ill, he still went to school.

33. I'll call you ______ I arrive at the airport.

34. You won't get good grades ______ you study hard.

35. ______ I was sleeping, someone knocked at the door.

36. We should take action ______ we can save the earth.

37. ______ he is very young, he can play the piano very well.

38. I'll give the letter to her ______ I see her.

39. You can't drive a car ______ you get a driving license.

40. ______ I got home, my parents were waiting for me.

参考答案及解析

1. 答案：A

解析：“if”表示“如果”，引导条件状语从句，句意是“如果明天不下雨，我们就去公园” 。

2. 答案：B

解析：“not...until”表示“直到……才”，她直到完成所有作业才离开教室。

3. 答案：A

解析：“When”既可以指时间点，也可以指时间段，“当我到达公交站时，公交车已经离开了” ，“到达”是时间点。“While”后接延续性动词；“As soon as”强调一……就；“Since”表示自从或因为，均不符合语境。

4. 答案：A

解析：“before”表示“在……之前”，你应该在交试卷之前检查一下。

5. 答案：B

解析：“so that”引导目的状语从句，意为“以便，为了”，后接句子；“in order to”后接动词原形；“as soon as”表示一……就；“since”表示自从或因为。这里是为了改善环境我们应该种树，选B。

6. 答案：B

解析：“Although”表示“尽管”，引导让步状语从句，尽管他很累，他还是继续工作 。

7. 答案：A

解析：“so that”引导目的状语从句，小男孩节省每一枚硬币是为了能在母亲节给妈妈买礼物。

8. 答案：C

解析：“as soon as”表示“一……就”，我一到北京就给你打电话。

9. 答案：B

解析：“Though”表示“尽管”，尽管他们是兄弟，但是他们看起来一点都不像。

10. 答案：A

解析：“Even though”和“Although”意思相近，都表示“尽管”，尽管雨下得很大，他仍然按时去上学。

11. 答案：B

解析：“unless”表示“除非”，相当于“if...not”，你不会通过考试，除非你努力学习。

12. 答案：A

解析：“not...until”结构，学生们直到老师进来才停止说话。

13. 答案：A

解析：“While”强调主从句动作同时进行，且从句动作是延续性的，当我正在街上走的时候，我看到了一场事故。

14. 答案：A

解析：“so that”引导目的状语从句，我们应该保护地球，以便我们能创造一个更好的居住世界。

15. 答案：A

解析：“Although”引导让步状语从句，尽管他年轻，但他知道很多。

16. 答案：B

解析：“as soon as”引导时间状语从句，他一回来我就把书给他。

17. 答案：B

解析：“unless”表示“除非”，你不能离开教室，除非你完成作业。

18. 答案：A

解析：“Because”引导原因状语从句，因为我今天早上起晚了，所以我错过了早班车。

19. 答案：A

解析：“so...that”表示“如此……以至于”，“so”后接形容词或副词，老人太累了以至于走不动了。

20. 答案：B

解析：“Unless”表示“除非”，除非你更努力学习，否则你赶不上你的同学。

21. 答案：A

解析：“While”强调主从句动作同时进行，且从句动作是延续性的，他在看电视的时候，他妈妈在做饭。

22. 答案：A

解析：“if”引导条件状语从句，“如果明天天气晴朗，我们就去野餐”。

23. 答案：B

解析：“so...that”表示“如此……以至于”，“so”后接形容词或副词，小女孩如此害怕以至于她开始哭了。“too...to”后接动词原形；“such...that”中“such”后接名词；“enough; to”结构不符合语境。

24. 答案：A

解析：“When”引导时间状语从句，当我到达电影院时，电影已经开始十分钟了。

25. 答案：A

解析：“that”引导定语从句，先行词是“everything”，在从句中作宾语，我们应该做我们所能做的一切来保护环境 。这里容易和状语从句混淆，需注意句子结构。

26. 答案：A

解析：“Although”引导让步状语从句，尽管天气很冷，他还是没穿大衣就出去了。

27. 答案：A

解析：“as soon as”引导时间状语从句，他一回来我就告诉他这个消息。

28. 答案：B

解析：“unless”表示“除非”，你学不好英语，除非你努力学习。

29. 答案：A

解析：“While”引导时间状语从句，强调主从句动作同时进行，我在读书的时候，我妹妹在看电视。

30. 答案：A

解析：“if”引导条件状语从句，如果下周不下雨，我们就开运动会。

31. 答案：B

解析：“so...that”表示“如此……以至于”，箱子太重了，我搬不动。

32. 答案：A

解析：“Although”引导让步状语从句，尽管他生病了，他仍然去上学。

33. 答案：A

解析：“as soon as”引导时间状语从句，我一到机场就给你打电话。

34. 答案：B

解析：“unless”表示“除非”，你不会取得好成绩，除非你努力学习。

35. 答案：A

解析：“While”引导时间状语从句，强调主从句动作同时进行，且从句动作是延续性的，当我正在睡觉的时候，有人敲门。

36. 答案：A

解析：“so that”引导目的状语从句，我们应该采取行动，以便我们能拯救地球。

37. 答案：A

解析：“Although”引导让步状语从句，尽管他很年轻，但他钢琴弹得很好。

38. 答案：A

解析：“as soon as”引导时间状语从句，我一见到她就把信给她。

39. 答案：B

解析：“unless”表示“除非”，你不能开车，除非你拿到驾照。

40. 答案：A

解析：“When”引导时间状语从句，当我到家的时候，我父母正在等我。

来源：蒙古元素