39.Many people hold mistaken beliefs about the reason for cancer, _____to think it is environmental factors rather than personal behavior.

A. deciding　　 B.tending　　 C.caring　　 D. attempting

38. Man cut down______forests in order to grow crops, or to use _____wood as fuel.

A. the; the　　　　　 B. the; 不填　　　　　　　　　　 C. 不填；the 　 D. 不填；不填

37. -Has Tom finished his report so far?

-I have no idea .He ______it this morning.

A. did　　　 B. has done　　　 C. was doing　　　 D. had done

36.Sun Haiping, coach of LiuXiang, fell silent at the press conference, and then Feng Shuyong ______the story of LiuXiang.

A. set up　　　 B. bring up　　　 C. take up　　　 D. make up

35._____________ I accept that he is not perfect, I do actually like the person.

　 　A. While　　 　B. Since　　　　 C. Before　　 　 D. Unless

34.______I got over my low spirits. From then on, I began smiling to my classmates.

A. Consistently　　 B. Roughly　　 C. Eventually　　　 D. Constantly

33. -It’s getting dark. My son hasn’t returned home?

-____________He has been a grown-up.

A. Take it easy.　 B. No problem.　　 C. Take your time.　　 D. So what?

32. -Nothing wrong with it,　 _________　　　 ?

　　 -No .Yours is a specially-built model. Drive carefully ,though .It takes time to run in a new car.

　　　 A. is it 　　　　　　　　　 B. has it 　　　　　　　　 C. are they　　　　　　　 D. is there

31. They_________　all the details of the plan time and again to make sure that the project went smoothly.

　　　 A. got through　　　　 B. went through　　　 C. got over　　　　　　　 D. dipped into

30. Without facts ,we can’t form a correct opinion ,for we need to have actual knowledge_______ our thinking.

　　　 A. which to be based on　　　　　　　　　　　　　 B. which to base on

　　　 C. on which to base 　　　　　　　　　　　　　　　　 D. which to base