奥鹏15春北航《大学英语3》在线作业1
一、单选题（共 25 道试题，共 100 分。）
1. I’m not sure whether I can gain any profit from the investment, so I can’t make a(n) promise to help you A. exact B. defined C. definite D. sure
正确答案：C
2. （ ）the meanwhile, he is busy trying to persuade her. A. At B. On C. In D. With
正确答案：C
3. Not having seen each other for a long time, the two sisters（ ）warmly. A. embraced B. enclosed C. engaged D. exchanged 正确答案：A
4. John studied hard before the examination, and it_____. He received an A. A. paid off B. worth C. valuable D. make out 正确答案：A
5. My brother,（ ）lives in Iceland, is coming to visit us. A. which B. that C. whom D. who
正确答案：D
6. I（ ） for a post in England. A. applied B. request C. demand
）（ D. claim
正确答案：A
7. According to one belief, if truth is to be known it will make itself apparent, so one（ ）wait instead of searching for it. A. would rather B. had to C. cannot but D. had best 正确答案：D
8. If he （ ）such a good chance, he would have planned to learn more. A. was giving B. had given
C. had been given D. was to give 正确答案：C
9. It is not profitable to provide bus services in districts where the population is widely____ A. separated B. scattered C. spaced D. divided 正确答案：B
10. Do you have a preference（ ）a particular food? A. with B. at C. for D. in
正确答案：C
11. For the health of babies, breastfeeding is far superior _______ bottle-feeding. A. to B. than C. beyond D. for
正确答案：A
12. He felt（ ）of what he had done in school. A. shy B. ash
C. advisable D. ashamed 正确答案：D
13. He was knocked down by a car and badly（ ）. A. injured B. damaged C. harmed D. ruined
正确答案：A
14. Jack （ ）his heavy coat because it was snowing. A. put back B. put on C. put away D. put aside 正确答案：B
15. All the roommates welcome Mary's suggestion that they（ ）only English in their dormitory. A. should speak B. would speak C. must speak
D. had better speak 正确答案：A
16. “Mind your spelling”, said the teacher to the students（ ）spelling was simply terrible. A. who B. whom C. whose D. that
正确答案：C
17. Hardly（ ）the people ran toward it. A. had the plane landed when B. had the plane landed than C. the plane had landed before D. the plane was landing than 正确答案：A
18. ________ breaks the law should receive severe punishment. A. who B. whoever C. whatever D. what
正确答案：B
19. First published in 1927, the charts remain an（ ）source for researchers. A. intelligent B. inevitable C. indispensable D. identical 正确答案：C
20. He （ ）on it for a long time before giving his advice. A. reflected B. thought C. considered D. contemplated 正确答案：A
21. The lecture given by Prof. Hope on American culture was very interesting. You___ it.