专项训练五 单项选择(连词)
1. (2017·天津)It's not always safe to pay over the Internet，________you should be careful.
A. so B. after C. because D. as soon as
2. (2017·安徽)Hold your dream，________you might regret some day.
A. and B. or C. but D. so
3. (2017·山西)Our teachers have been with us for nearly three years________ we came to junior high school. We should thank them for what they have done for us.
A. until B. before C. sine
4. (2017·天津)—Which do you prefer, traditional Western music________ pop music?
—Pop music.
A. but B. as C. or D. from
5. (2017·武汉改编)—I don't like reading________ watching TV. What about you?
—I don't like reading，________I like watching TV.
A. and; or B. and; and C. or; and D. or; but
6. (2017·恩施)Be careful! Don't walk on the grass，________it will “cry”.
A. and B. but C. or D. so
7. (2017·福建)The scientist has failed in the test many times，________he never gives up.
A. but B. so C. or
8. (2017·河北)Mom won't let Dick go out________ he promises to be back by 10：00 tonight.
A. if B. when C. since D. unless
9. (2017·黄冈)—Do you think we should share our problems with our parents?
—Sure！________ we talk to them，we'll feel worse.
A. If B. Although C. Because D. Unless
10. (2017·苏州)You will never achieve success________ you devote yourself to your work.
A. after B. if C. because D. unless
11. (2017·温州)________the scientists have done lots of research on Mars, there is still much waiting to be discovered.
A. If B. Since C. Unless D. Though
12. (2017·南充)—Mike, let's prepare for our baseball game.
—OK. We'll lose the game________ we try our best.
A. unless B. once C. after D. since
13. (2017·泰安)I didn't believe I could do it ________ I got to the top of Mount Tai.
A. unless B. until C. after D. as
14. (2017·龙东区)The TV play Journey to the West is________ interesting________ I would like to watch it again.
A. such; that B. too; to C. so; that
15. (2017·广东)“A white elephant” means something that is useless，________ it may cost a lot of money.
A. unless B. until C. since D. although
16. (2017·邵阳)________Lily is only five years old，________she can swim very well.
A. Though; but B. Because; so C. Though ; /
17. (2017·恩施)Rose cooks meals at home on Sundays. She never eats________ her mother comes back and she'd like to enjoy it together.
A. until B. when C. after
2
18. (2017·荆州)—Keep working hard, Paul. You will surely realize your dream of being a writer________ you give it up halfway.
—I will, thank you, Miss Rowling.
A. unless B. if C. since D. though
专项训练五 单项选择(连词)
1.A
2.B 点拨：or在此句中意为“否则”。
3.C
4.C
5.D
6.C
7.A
8.D
9.D
10.D
11.D
12.A
13.B 点拨：not...until“直到……才”。
14.C
15.D
16.C 点拨：although/though与but不能同时用于句中。
17.A
18.A
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