16. The police set a ________ to catch the thieves.
A) plan B) device C) trap D) trick
17. We have to try every means to ________ the costs of the construction project.
A) bring off B) bring forth C) bring down D) bring back
18. The students were participating ________ an international energy-saving competition between towns in New England and Canada.
A) for B) in C) to D) at
19. When she was criticized, she claimed that it was outside her ________ of responsibility.
A) field B) limit C) extent D) range
20. We welcome rain, but a(an) ________ large amount of rainfall will cause floods.
A) extensively B) extremely C) specially D) constantly
21. Beethoven is my favorite musician. I regard him as ________ other musicians.
A) superior to B) more superior than C) more superior to D) superior than
22. I hope that you’ll be more careful in typing the letter. Don’t ________ anything.
A) withdraw B) omit C) reduce D) lead
23. She is a very ________ secretary: she never forgets anything or makes a mistake.
A) anxious B) effective C) adequate D) efficient
24. I’ll accept any job ________ I don’t have to get up early.
A) lest B) as long as C) in case D) though
25. Once out of the earth’s gravity, the astronauts is ________ by the problem of weightlessness.
A) affected B) effected C) inclined D) related
26. Medical research has shown that the widespread of use of cigarettes contributes ________ the increase of cancers.
A) towards B) for C) with D) to
27. The computer has brought about surprising technological changes ________ we organize and produce information.
A) in a way B) in the way C) in that way D) in no way
28. He is late again today. I’ll ________ that he will not be late tomorrow.
A) be sure B) hope for C) felt D) to be felt
29. This popular sports car is now being ________ at the rate of a thousand a week.
A) turned down B) turned out C) turned up D) turned on
30. In Britain people drive ________ the left.
A) at B) on C) to D) in
参考答案：
16-20 CCBDB 21-25 ABDBA 26-30 DBBBB