VII.完形填空(共20小题，每小题1分 满分20分)

阅读下列短文，在每小题所给的A.B.C.D.四个选项中选出一个最佳选项。

A

At present, almost everyone has a mobile phone, but have you ever thought that cell phones   46   be bad for your health? A study shows that heavy mobile phone use may cause hearing loss.

This study shows that people who use cell phones for about an hour a day have a   47   time hearing some similar sounds, especially in their right ears. It is getting harder for   48  to tell the difference between the sounds of “s” and “f”, and “t” and “z”.

Researchers studied 100 people who used cell phones and   49   them with 50 people who did not. The study lasted for 12 months. What the researchers found was that cell phone users had more hearing   50   than those who did not use cell phones.

Besides this, our ears have many little   51   inside them. Too much noise will cause these hairs to get weak and   52   die. When these hairs die, it affects our ability to listen.

However, cell phone users don’t care too much   53  this study. One man said, “I’d be more worried about people who   54   MP3 players. They put those earphones in their ears and listen to very   55  music. I think that is more likely to cause hearing loss than a cell phone.”

46. A. should         B. need        C. might        D. must

47. A. busier         B. happier      C. harder        D. shorter

48. A. us            B. you         C. it            D. them

49. A. compared      B. suggested    C. showed       D. taught

50. A. advantages     B. problems     C. rules         D. experiences

51. A. noises         B. pains        C. hairs         D. pimples

52. A. hardly         B. actually      C. clearly       D. finally

53. A. to            B. with         C. about         D. of

54. A. produce       B. use          C. discover       D. see

55. A. beautiful       B. soft          C. loud         D. Light