23. A. space B. spot C. food D. survival

　　24. A. get B. take C. have D. make

　　25. A. fight B. avoid C. trap D. discover

　　26. A. special B. imaginative C. outstanding D. creative

　　27. A. operation B. teamwork C. lifestyle D. control

　　28. A. single B. brave C. lonely D. fair

　　29. A. fight B. struggle C. fear D. fail

　　30. A. As for B. As though C. Even so D. Even if

　　31. A. what B. he C. that D. one

　　32. A. turn in B. give in C. take in D. break in

　　33. A. once B. just C. soon D. only

　　34. A. satisfaction B. disappointment C. pleasure D. sorrow

　　35. A. rest B. others C. another D. the other

　　36. A. proud B. satisfied C. willing D. eager

　　37. A. until B. although C. before D. unless

　　38. A. selflessness B. self-confidence C. self-respect D. self-protection

　　39. A. curious B. different C. strange D. humorous

　　40. A. walk B. hand C. get D. succeed

　　任务型阅读（共10小题，每小题１分，满分10分）

　　请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。

　　注意：每空格只填一个单词。

　　If environmental trends continue on a positive track, some day children may ask, "Mommy, what was pollution?" But between that day and ours stands the environmental problem: global warming. Fighting an artificial greenhouse effect is the greatest of environmental challenges, because the cure will not be possible unless almost every nation on the Earth participates.

Will global warming cause harm? Some computer models suggest the world might warm by 5