第三节  完形填空(共10小题;每小题1分，满分10分)

从题中所给的A、B、C、D四个选项中选出能填入空白处的正确选项，并将所选答案涂到答题卡(填在答题卷)的相应位置上。

Bicycle riding has many advantages. It is cheap, fun, healthy and good for the environment.

If you   41   by bicycle, you don’t have to buy   42   as you must when you drive cars. Besides, it costs less to repair   43   a car does. Get on a bicycle and ride around, and you may   44   something new all around you. Bicycle riding is especially   45   for health. It is good exercise. If you go to work by   46   a bicycle instead of d riving a car or taking a bus, you can have a better   47   to get enough exercise you need everyday. Exercise like cycling can   48    people feel better and more relaxed. It is also good for our environment. It is less noisy and does not   49   the air.

Bicycle riding is so cool. That is   50   more and more people like cycling.

41. A. think         B. travel          C. teach      D. trade

42. A. oil          B. sugar       C. water      D. soup

43. A. till             B. until            C. than         D. unless

44. A. check          B. cheat         C. agree           D. find

45. A. bad         B. good            C. thank        D. sorry

46. A. taking         B. drawing       C. driving        D. riding

47. A. chance         B. change             C. challenge    D. control

48. A. hear         B. see               C. make     D. notice

49. A. provide         B. pollute         C. produce    D. protect

50. A. when            B. where              C. how       D. why