为帮助大家在轻松愉快的氛围中掌握英语基础知识，本网站特提供以下资料，希望会带给你意想不到的收获：
41. Modern medicine has made great _____ to the health and welfare of mankind.
A. distributions
B. attributions
C. contributions
D. substitutions
正确答案是
42. A very sore throat had reduced his voice to a _____.
A. cry
B. whisper
C. cough
D. whistle
正确答案是
43. For John, no hobby can _____ the thrill of the chase after a rare stamp.
A. compete
B. bring
C. compare
D. match
正确答案是
44. Some animals will modify their behavior to _____ to their environment.
A. suit
B. reconcile
C. conform
D. adapt
正确答案是
45. Smith drove all the _____ to Los Angeles and was just in time for the opening ceremony of the 23rd Olympiad.
A. way
B. road
C. journey
D. trip
正确答案是
46. Does it ever _____ to you that they would be punished for being late?
A. strike
B. occur
C. happen
D. emerge
正确答案是
47. He never allowed his children to be _____ of anything necessary for their education.
A. absent
B. empty
C. short
D. scarce
正确答案是
48. She is too _____ to be careless about her house-keeping.
A. industrialized
B. industrial
C. industrialist
D. industrious
正确答案是
49. If you keep in mind the process of word deviation (派生), you'll be able to _____ the meaning of many words.
A. reason with
B. make up
C. count on
D. figure out
正确答案是
50. Did you see the traffic accident involving the _____ between a truck and two cars the other day?
A. comparison
B. commission
C. collision
D. combination
正确答案是
51. Scientists will have to come _____ new methods of increasing the world's food supply.
A. up with
B. up for
C. down with
D. down to
正确答案是
52. The workers produced more steel, and all of fine quality _____.
A. at it
B. at this
C. for that
D. at that
正确答案是