27. The process of producing electricity may also give out CO2, _______ you heat your house with electricity instead of charcoal.

　 A. even if 　　　　　　　 　　　　B. as long as　　　　　 　 　 C. as if　　 　　 　　D. as soon as

26. -How much of the foreign expert’s speech have you understood?

　 　-Next to nothing. I wish I _______ harder at English.

A. worked　　　　 　　　　　　 B. had worked　 　　 　　　 C. would work　　　 　　 D. were working

25. Don’t refer to the dictionary every time you come across a new word as sometimes its meaning may be _______ clearly in a given context.

　 　A. picked out　　　　　 B. ruled out　　　　　　　 C. brought out　　　　 D. taken out

24. The Expo site should be _______ from anywhere in the city of Shanghai within 90 minutes by bus, subways and special taxis.

　 　A. adoptable　　　　　　　　　　 B. acceptable　　　　 C. available　　　　　　　　 D. accessible

23. Knowing office rules - whether _______ or not-is critical, especially for young job seekers.

　 　A. written　　　　　　　　　　　　 B. writing　 　C. being written　　　　 D. having been written

22.-He is eager to try something he has never tried before.

　　-Oh, I see. That’s _______ he’s different from others.

A. when　　　　　　　 B. where　　　　　　　　　　　 C. how　　　 D. what

4.根据以上材料，结合所学知识对孙中山、毛泽东的不同主张作一简要评价。

孙中山提出“平均地权”，是资本主义的土地纲领，最终并未推行，反映了资产阶级反封建不彻底，辛该革命失败。毛泽东提出土地革命路线，代表了广大农民利益。是彻底的反封建的民主革命观领的重要组成部分，使中国民主革命取得胜利