1. He realized that she was crying ______ he had said.
A. because what B. because of what C. because that D. because
2. It ______ long before we ______ the result of the experiment.
A. will not be; will know B. is; will know C. will not be; know D. is; know
3. He was about to tell me the secret ______ someone patted him on the shoulder.
A. as B. until C. while D. when
4. _____ there is a will, there is a way.
A. That B. Where C. The place where D. At the place
5. ---- When will you come to see me, Dad?
---- I will go to see you when you _____ the training course.
A. will have finished B. will finish C. are finishing D. finish
6. You should make it a rule to leave things _____ you can find them again.
A. when B. where C. then D. there
7. ---- Shall Mary come and play computer games? ---- No, ____she has finished her homework.
A. when B. if C. unless D. once
8. I shall ring you up ______ you should forgot it.
A. in case of B. in case C. in no case D. in that case
9. He was working at a new book ______ I went to see him.
A. first time B. for the first time C. by the first time D. the first time
10. _____, you mustn’t go against the rules.
A. No matter what to do B. Whatever to do C. What you do D. Whatever you do
11. ---- Why haven’t I seen Jerry recently?
--- Oh, because it is two weeks since she _____ here.
A. lived B. got C. has lived D. had got
12. I caught the last bus from the town, yet Henry came home _____ that night.
A. very late B. even later C. so late D. the latest
13. Mrs. Smith locked both the front and the back doors before she went to bed _____ that a thief might steal into the house.
A. so B. for fear C. unless D. in case
14. We hadn’t been out for long, _____ she felt sick.
A. as B. when C. while D. after
15. We were just _____ calling you up _____ you come in.
A. about; when B. beginning; while C. on the point of; when D. out of; as
16. ---- I’m going to the post office. ---- _____ you’re there, can you get me some stamps?
A. As B. While C. Because D. If
17. You can arrive in Beijing earlier for the meeting _____ you don’t mind taking the night train.
A. on condition that B. unless C. though D. until
18. The gas must have been used up, _____ the fire went out of itself.
A. because B. as C. for D. since
19. He _____ to the lab than he set out to do the experiment.
A. has no sooner got B. no sooner got C. will no sooner get D. had no sooner got
20. Ants are the most common life form on earth. ____ tiny, their combined weight is greater than that of the combined weight of all humans.
A. Though B. Even C. Even though D. As if
21. Kathy and Anne looked _____ they were twins, for they looked so much _____ each other.
A. like; same B. as; like C. if; the same D. as if; like
22. ---- When did he leave the classroom? ---- He left _____ you turned back to write on the blackboard.
A. the minute B. the time C. until D. before
23. I thought things would get better, but _____ it is they are getting worse.
A. before B. because C. as D. after
24. ---- I’ve got _____ I am by hard work. ---- No, you didn’t. You got _____ with your father’s money.
A. there; where B. where; there C. there; there; D. where; where
25. If the building project ______ by the end of this month is delayed, the construction company will be fined.
A. to be completed B. is completed C. being completed D. completed
26. I was half way back to the cottage where my mother lived _____ Susan caught up with me.
A. before B. where C. when D. that
27. Some people object to the research on cloning human embryo（胚胎）, ____ its purpose is.
A. whatever B. what C. which D. whoever
28. I regret not having taken your advice. Otherwise I _____ this mistake.
A. didn’t make B. wouldn’t make C. hadn’t make D. wouldn’t have make
29. As far as we know, Tom spends at least as much time watching TV as he _____.
A. does writing B. writes C. writing D. does to write
30. I’d get it for you _____ I could remember who last borrowed it.
A. except that B. if only C. on condition that D. considering whether
【真题检测】
1.（全国高考I，25）I don’t believe we’ve met before, _____ I must say you do look familiar.
A. therefore B. although C. since D. unless
2.（重庆高考，30）─Coach, can I continue with the training?
─Sorry, you can’t _____ you haven’t recovered from the knee injury.
A. until B. before C. as D. unless
3.（湖南高考，28）_____ I always felt I would pass the exam, I never thought I would get an A.
A. While B. Once C. If D. Until
4.（湖南高考，32）_____ hard you try, it is difficult to lose weight without cutting down the amount you eat.
A. However B. Whatever C. Whichever D. Whenever
5.（福建高考，30）It is hard for the Greek government to get over the present difficulties _____ it gets more financial support from the European Union.
A. if B. unless C. because D. since
6.（北京高考，21）─Look at those clouds!
─Don’t worry. _____ it rains, we’ll still have a great time.
A. Even if B. As though C. In case D. If only
7.（江西高考，31）You can borrow my car _____ you promise not to drive too fast.
A. unless B. even if C. in case D. as long as
8.（陕西高考，18）Hot _____ the night air was, we slept deeply because we were so tired after the long journey.
A. although B. as C. while D. however
9.（陕西高考，25）All the photographs in this book, _____ stated otherwise, date from the 1950s.
A. unless B. until C. once D. if
10.（四川高考，4）At school, some students are active _____ some are shy, yet they can be good friends with one another.
A. while B. although C. so D. as
11.（四川高考，10）If you happen to get lost in the wild, you’d better stay _____ you are and wait for help.
A. why B. where C. who D. what
12.（天津高考，14）Everything was placed exactly _____ he wanted it for the graduation ceremony.
A. while B. when C. where D. though
13.（辽宁高考，30）Leave your key with your neighbor _____ you lock yourself out one day.
A. as long as B. even though C. in case D. as if
14.（山东高考，27）He smiled politely _____ Mary apologized for her drunken friends.
A. as B. if C. unless D. though
15.（山东高考，32）A number of high buildings have arisen _____ there was nothing a year ago but ruins.
A. when B. where C. before D. until
16.（江苏高考，30）One’s life has value _____ one brings value to the life of others.
A. so that B. no matter how C. as long as D. except that
17.（上海高考，32）I have a tight budget for the trip, so I'm not going to fly _ the airlines lower ticket prices.
A. once B. if C. after D. unless
【反馈提高】
1.(2013·日照高三调研)What a tight volleyball game! We lost it ________ we all tried our best.
A．because B．though C．until D．unless
2.(2013·湖南十二校第一次联考)How can you expect him to make any improvement ________ you never give him an opportunity to have a try?
A．unless B．when C．until D．while
3.(2013·江西重点中学第二次联考)Unlike watching TV, reading is a highly active process ________ it requires attention as well as memory and imagination.
A．until B．but C．unless D．for
4.(2013·西城一模)The medicine works more effectively ___you drink some hot water after taking it.
A．as B．until C．although D．if
5.(2012·合肥第二次质量检测)The war against official corruption has made great progress in the past few years, ________ the government has more to root it out.
A．if B．though C．unless D．however
6.(2012·郑州质量检测)— Can't you stay a little longer? I really want to talk more with you.
— Me, too.________ I have to get home before 10 at night.
A．But B．Since C．And D．For
7.(2012·黑龙江哈九中二模)Many people can't learn any lessons from the mistakes they've made _____ they get hurt somehow.
A．whether B．unless C．if D．as
8.(2013·北京东城区示范校联考)________ computers are convenient to us in daily life, it may also cause other problems.
A．Whether B．Because C．As D．While
9.(2013·西安五大名校一模)______interesting the film is, I won't waste any time on it.
A．No matter B．Whatever C．However D．Whichever
10.(2012·山东实验诊断)Your time is running out. Change your mind _____ it is too late!
A．since B．when C．until D．before
11.(2012·山东东营胜利一中)Most whales must come up for air after several minutes, ________ a few can stay under water for an hour or more.
A．while B．or C．for D．so
12.(2012·河北衡水中学一模)If you are traveling ________the customs are really foreign to your own, please do as the Romans do.
A．in which B．what C．when D．where
13.(2013·浙江六校联考)I'd like to arrive 20 minutes early ____ I can have time for a cup of tea.
A．as soon as B．as a result C．in case D．so that
14.(2012·南昌一模)— How long have you been studying in No.2 Middle School?
— Less than half a year. And it will be two years and a half ______ I graduate from this school.
A．when B．after C．before D．since
15.(2012·东北三校第一次联考)The new teacher was so well-organized that she began ________ we stopped yesterday so that no point was left out.
A．when B．in which C．how D．where
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