42. Generally speaking, it is about ____on the mountain than in the valley.

A. three degrees colder B. three degrees as cold C. colder three days

D. as cold d three degrees

41. English words are not always spelt______.

A. the way which they sound B. by the they sound

C. the way they sound　 D. as they are sound

40. ---Do you know Mary very well?

　 --- yes. We became good friends _____we met at a meeting.

A.　 by the time B. the firs time C. until D. as long as

39. Being life’s ______only black photographer put him in _____unusual position when parks set out to cover the civil rights movement.

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

38. with the rapid growth of population, the city _____in all directions in the past five years.

A. spreads B. has spread C. spread D. had spread

37. Our son doesn’t know what to _____at　 the university; he can’t make up his mind about his future.

A. take in B. take up C. take over　 D. take after

35. I felt somewhat disappointed and was about to leave,_____ something occurred, which attracted my attention.

　A.　 Unless　 B. until　 C. when D. while

36---To tell you the truth, I wouldn’t be happy living such a small room.

--- But _____ .I do prefer a small room.

A.I agree with you B. it’s OK with me C. it just depends D. I’ rather not

34. Space exploration has been made _____with the development of science and technology.

A. it possible B. it was possible C. that possible D. possible

33. Dr Frank failed many times but he finally ____ to find a successful way to solve the problem.

A.　 Broke off B. broke up C. broke down D. Broke through

32. The artist made up his mind to devote all he could _____ his English before going abroad.

A. Improve B. to improve C. to improving D. improving