11. Besides focusing on the research of the development of science and technology，the study of science history also attaches great importance ________ social science.
A. to B. with C. into D. for
12. Most Americans would prefer to keep their problems_______ themselves，and solve their problems ________ themselves.
A. to; by B. by; to C. for; to D. in; on
13. We know from their greetings how much they expect ________ us. We won't let them down.
A. of B. on C. for D. to
14. --Can I have your business number?
--You can call me, free of charge, ______66887790.
A. at B. by C. with D. for
15.-- I am going to have lunch. Do you mind talking about it ______ lunch?
--All right. I’ll wait here in the office.
A. over B. before C. after D. until
16. Both of the two boys are enjoying their lives the fact that they have very little time to do other things.
A. beside B. despite C. beyond D. except
17. – I think he is taking an active part in social work.
---I agree with you .
A. in a way B. on the way C. by the way D. in the way
18. I guess we’ve already talked about this before but I’ll as you again just ________.
A. by nature B. in return C. in case D. by chance
19. The workers risked their lives to restore communications in the disaster areas, which were cut off ________ the powerful earthquake.
A. in case of B. in spite of C. instead of D. because of
20. So far we have done a lot to build a low carbon economy, but it is ________ ideal. We have to work still harder.
A. next to B. far from C. out of D. due to
11. A。attach great importance to…是固定搭配，表示“认为……重要”。
12. A。句意：大多数美国人喜欢把问题自己一个人扛着，独自解决。keep...to oneself意为 “使……为自己一个人所拥有”；by oneself“独自；单独”。
13. A。expect sth. of sb.是固定搭配，表示“指望某人某事”。
14. A。call sb. at…表示“拨打……的电话”。
15. C。依答语I’ll wait here in the office说明第一人提出“午饭后讨论”。after lunch午饭后。
16. D。despite相当于in spite of表示“尽管”。
17. A。in a way在某种程度上；on the way在路上；by the way顺便说；in the way妨碍。
18. D。句意：我觉得我们以前已经谈论过这件事情了，但是我还会再问你一次，以防万一。by nature 天生地；in return作为回报，作为交换；in case 万一，以防；by chance偶然地。
19. D。in case of万一发生；in spite of尽管；instead of代替；because of因为。
20. B。句意：为了发展低碳经济，到目前为止我们已做了很多，但还远未达到理想程度我们必须更加努力。next to紧邻；far from＝not at all；out of在……之外；due to因为，由于。
A. to B. with C. into D. for
12. Most Americans would prefer to keep their problems_______ themselves，and solve their problems ________ themselves.
A. to; by B. by; to C. for; to D. in; on
13. We know from their greetings how much they expect ________ us. We won't let them down.
A. of B. on C. for D. to
14. --Can I have your business number?
--You can call me, free of charge, ______66887790.
A. at B. by C. with D. for
15.-- I am going to have lunch. Do you mind talking about it ______ lunch?
--All right. I’ll wait here in the office.
A. over B. before C. after D. until
16. Both of the two boys are enjoying their lives the fact that they have very little time to do other things.
A. beside B. despite C. beyond D. except
17. – I think he is taking an active part in social work.
---I agree with you .
A. in a way B. on the way C. by the way D. in the way
18. I guess we’ve already talked about this before but I’ll as you again just ________.
A. by nature B. in return C. in case D. by chance
19. The workers risked their lives to restore communications in the disaster areas, which were cut off ________ the powerful earthquake.
A. in case of B. in spite of C. instead of D. because of
20. So far we have done a lot to build a low carbon economy, but it is ________ ideal. We have to work still harder.
A. next to B. far from C. out of D. due to
11. A。attach great importance to…是固定搭配，表示“认为……重要”。
12. A。句意：大多数美国人喜欢把问题自己一个人扛着，独自解决。keep...to oneself意为 “使……为自己一个人所拥有”；by oneself“独自；单独”。
13. A。expect sth. of sb.是固定搭配，表示“指望某人某事”。
14. A。call sb. at…表示“拨打……的电话”。
15. C。依答语I’ll wait here in the office说明第一人提出“午饭后讨论”。after lunch午饭后。
16. D。despite相当于in spite of表示“尽管”。
17. A。in a way在某种程度上；on the way在路上；by the way顺便说；in the way妨碍。
18. D。句意：我觉得我们以前已经谈论过这件事情了，但是我还会再问你一次，以防万一。by nature 天生地；in return作为回报，作为交换；in case 万一，以防；by chance偶然地。
19. D。in case of万一发生；in spite of尽管；instead of代替；because of因为。
20. B。句意：为了发展低碳经济，到目前为止我们已做了很多，但还远未达到理想程度我们必须更加努力。next to紧邻；far from＝not at all；out of在……之外；due to因为，由于。
