29. 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

选B. far from 表示not at all . next to 表示仅次于 due to表示因为,由于

28. The retired man donated most of his savings to the school damaged by the earthquake in Yushu ,________the students to return to their classrooms.

A. enabling　　 B. having enabled　　 C. to enable　　 D. to have enabled

选A. enabling 表示他在捐献后的结果

27. -Do you think their table tennis team will win the first place at the coming Asian Games?

-_________.Ours is much stronger than theirs.

A. Of course　　 B. It depends　　 C. Don’t mention it　　 D. By no means

选D. by no means 表示绝不　 It depends.　 表示看情况而定.

26. The experiment has_________ the possibility of the existence of any life on that planet, but it does not mean there is no life on other planets.

A. found out　　 B. pointed out　　 C. ruled out　　 D. carried out

选C，排除可能性。Find out是查找出 point out指出 carry out执行，实施

25. -I haven’t got the reference book yet, but I’ll have a test on the subject next month.

　 -Don’t worry. You______ have it by Friday.

A. could　　 B. shall　　 C. must　　 D. may　 w_

选B，shall在第二人称中表示允诺，还可以表示强制，命令，威胁，警告。还有在法律条文中的要求或规定。

24. Thousands of foreigners were______ to　 the Shanghai World Expo the day it opened.

A. attended　 B. attained　 C. attracted　 D. attached

选C。表示成千上万的外宾被吸引来参加上海的世博会。

23.-why, Jack, you look so tired!

　-Well, I _____the house and I must finish the work tomorrow.

A. was painting　　 B. will be painting　 C. have painted　 D. have been painting

选D。我给房子上油漆一直进行到现在，而且到明天才会完成。所以用现在完成进行时

22. The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good_____.

A. expectation　　 B. reputation　 C. contribution　 D. civilization

选B，reputation 表示名声而expectation是期望的意思。Contribution是贡献的意思。Civilization是文明的意思。