从A、B、C、D中选出可以填入空白处的最佳答案。

　　1. ________ hard I tried, it was impossible to fill this beautiful pen with ink.

　　A. However B. Whatever C. As D. Even though

　　2. It was quiet ________ those big trucks started coming through the town.

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

　　3. Tired ________ he was, I decided not to trouble him.

　　A. because B. since C. if D. as

　　4. It seemed only seconds ________ the boy finished washing his face.

　　A. when B. before C. after D. even if

　　5. Let her do that, ________ she will.

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

　　6. She made a note of it ________ she might forget.

　　A. unless B. so that C. in case D. if

　　7. When you read the book, you'd better make a mark ________ you have any questions.

　　A. if B. where C. when D. which

　　8. ________ you stay at home, why not do some shopping?

　　A. Because B. Since C. If D. Even if

　　9. ________ I know, this book will be used as a textbook.

　　A. So far as B. As long as C. Once D. Before

　　10. I'll leave him a note ________ he'll know where we are.

　　A. in case B. in order C. after D. so that

　　11. ________ you find either his address or his telephone number, you can't get in touch with him.

　　A. Although B. Even though C. Unless D. If

　　12. The Chinese boy speaks English quite fluently ________ he were English.

　　A. that B. as C. like D. as if

　　13. Hardly had he reached the school gate ________ the bell rang.

　　A. while B. when C. as D. as soon as

　　14. You can go out, ________ you promise to be back before ten.

　　A. in order that B. even if C. as long as D. whenever

　　15. You are always welcome ________ you call on me.

　　A. whenever B. as soon as C. once D. as long as

　　16. All matter, _______ it is solid, liquid or gas, is made up of atoms.

　　A. whatever B. wherever C. no matter what D. whether

　　17. ________ you begin, I think you must continue.

　　A. When B. Whenever C. Once D. Even if

　　18. I recognized you ________ I saw you at the airport.

　　A. the moment B. while C. after D. once

　　19. ________ you say, I won't agree with you.

　　A. No matter how B. No matter what C. No matter which D. No matter when

　　20. He was about to go to bed ________ the doorbell rang.

　　A. while B. as C. before D. when

　　参考答案与解析：

　　1. A。however引导让步状语从句，意思是“不管怎样；无论如何”。

　　2. C。until引导时间状语从句，用于肯定句时，表示主句的动作“一直延续到……为止”。

　　3. D。as引导让步状语从句时，意思是“尽管”，需要使用特殊的倒装句式，即：把从句中的名词、形容词、副词等提到句首。如果名词是可数名词单数，提到句首时，冠词省略。例如：Child as he is, he knows a lot.

　　4. B。before引导时间状语从句时，译法非常灵活。在此应译为“(没过多久)就……”。

　　5. A。if引导条件状语从句。if she will意思是“如果她愿意的话”，will表示意愿。

　　6. C。in case引导条件状语从句。意思是“以防万一”。

　　7. B。where引导地点状语从句。make a mark where you have any questions意思是“在有问题的地方作一个标记”。

　　8. B。since引导原因状语从句，语气较弱。常译为“既然”。

　　9. A。as / so far as I know据我所知。

　　10. D。so that以便；为了。引导目的状语从句。

　　11. C。unless引导条件状语从句，意思是“除非……，否则……”。

　　12. D。as if / though引导状语从句，意思是“似乎；好像”。

　　13. B。hardly ... when ... 是一固定搭配，意思是“一……就……”。

　　14. C。as / so long as引导条件状语从句，意思是“只要……”。

　　15. A。whenever不论何时，引导让步状语从句。

　　16. D。whether引导状语从句。whether ... or ... 不论……还是……。

　　17. C。once引导时间状语从句，但含有条件意味。常译为“一旦……就……”。

　　18. A。the moment在此是名词短语用作连词。意思是“一……就……”，相当于as soon as。

　　19. B。no matter what引导让步状语从句，what可在从句中作主语、宾语、表语、定语等。在此句中what作动词say的宾语。

　　20. D。be about to do sth. when …是一固定搭配，意思是“正要做某事，就在这时……”。注意：when不能用while或as代替。

　　(文/刘耀辉； 英语辅导报冀教高一版 04~05学年度第14期；版权归英语辅导报社所有，独家网络合作伙伴新浪教育，未经许可，不得以任何形式进行转载。)