26. His ability is beyond question; ______ has been in doubt is ______ he is prepared to work hard.

　　 A. what; that　　　　 B. what; whether　　 C. which; whether　 　 D. that; that

25. Most people would agree that nuclear science should be developed to benefit the human beings_______ harm them.

　　 A. more than　　　　　 B. other than　　　　 C. better than　　　 D. rather than

24. Many new means__________ to prevent the river ____________.

A. have found, from polluting

B. have found, from being polluted

C. have been found, from being polluted

D. has been found, from being polluted

23. I like _____ in the spring when the weather is warm and everything begins to grow.

　 　 A. this　　　　 B. that　　　　 C. these　　　　 D. it　

22. Is it to hold the 2010 World Exhibition _______ makes Shanghai the focus of the world?

A. when　　　 　 B. that　　　　　　　 C. which　　　　　　 D. what

第一节　 单项填空(共20小题；每小题1分，满分20分)

21. We can never expect 　　bluer sky unless we create 　　less polluted world. 　

A. a; a 　　　　B. a; the 　　　C. the; a　　　　 D. the; the