28. Although the causes of cancer ____, we do not yet have any practical way to prevent it.

A. are being uncovered　 B. have been uncovering　

C. are uncovering　　　　 D. have uncovered

27. ____ team wins on Saturday will go through to the national championships.

A. No matter what　 B. No matter which　 C Whatever　 D. whichever

26. We’re just trying to teach a point ____ both sides will sit down together and talk.

A. where　 B. that　 C. when　 D. which

25. Someone who lacks staying power and perseverance is unlikely to ___ a good researcher.

A. make　 B. turn　 C. get　　 D. grow

24. I’d appreciate ____ if you would like to teach me how to use the computer.

A. that　 B. it　 C. this　 D. you

23. Engines are to machines ____ hearts are to animals.

A. as　 B. that　　 C. what　 D. which

22. How did you find your visit to Qingdao, Joanna?

A. Oh, wonderful indeed　 B. I went the alone　

C. First by train and then by ship　 D. A guide showed me the way

第一节：单项填空(共15小题，每小题1分，满分15分)

从A、B、C、D四个选项中，选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

例：Mr. Smith owns ____ collection of coins than anyone else I have ever met.

A. larger　 B. a larger　 C. the larger　 D. a large

答案是B。

21. For him ____ stage is just ___ means of making a living.

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