第二卷附加题完形填空一。（共12小题；每小题1.5分，满分18分）阅读下面短文，掌握其大意，然后从第66至第77小题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项

第二卷   附加题
完形填空一。（共12小题；每小题1.5分，满分18分）
阅读下面短文，掌握其大意，然后从第66至第77小题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。.
It seems like everywhere a person goes there is at least one person with a cell phone to his ear. Even in places where cell phone usage is banned such as concert halls or movie theatres there is the   66    offender, or at least a few people using the text messaging feature on their phones.
Cell phone usage has exploded over the past decade and continues to rise. Nearly 200 million people in the United States have cell phones and there are   67   over one billion users worldwide. That means there are a lot of phones   68   their frequencies over the airwaves at any given time.
Concern has arisen over whether or not cell phone usage can harm a person’s health. Brain cancer rates in the United States have risen since cell phones were   69  , leading some people to wonder if cell phone usage is the reason for the   70  .
Some people say the biggest danger with cell phones isn’t from the either real or perceived potential to develop cancer, but from   71   while using the cell phone. How many of us have seen vehicles driving quite erratically（不稳定地）down the road. And we often see when we get near the vehicle the driver on a cell phone is   72   on a cell phone. It is a proven fact that a driver on a cell phone is   73   attentive and more likely to get in an accident. And, hands-free sets aren’t the answer that some people may believe. Yes, they   74   both hands for driving and prevent a person from getting a sore arm,  75   the driver’s mind is still   76   the conversation and therefore less attentive to what is   77   around him or her on the road.
66. A. busy                   B. always                     C. occasional         D. occasionally
67. A. well                   B. good                 C. better                D. best
68. A. delivering           B. carrying            C. taking               D. sending
69. A. allowed                     B. invented            C. introduced         D. bought
70. A. increase                     B. decline              C. improvement     D. rose
71. A. attention             B. attractive           C. careless             D. inattentiveness
72. A. using                 B. talking                     C. moving             D. handing
73. A. more                  B. less                   C. least                  D. fewer
74. A. hold up                     B. pick up             C. put up               D. free up
75. A. therefore             B. as                     C. but                   D. though
76. A. taken up             B. filled by            C. occupied with    D. picked up
77. A. happening to             B. going on           C. talking about     D. moving about66—70 CADCA    71—75 DBBDC   76—77 CB