Itseemslikeeverywhereapersongoesthereisatleastoneper...

问题详情：

    It seems like everywhere a person goes there is at least one person with a cell phone to his ear. Even in places   21   cell phone usage is banned such as concert halls or movie theatres there is the   22   offender, or at least a few people using the text messaging feature   23   their phones.

    Cell phone usage has   24   over the past decade and continues to rise. Nearly 200   25   people in the United States have cell phones and there are   26   over one billion users worldwide. That means there are a lot of phones   27   their frequencies over the airwaves at any given time.

    Concern has arisen over whether or not cell phone usage   28   harm a person’s health. Brain cancer rates in the United States have risen since call phones were   29  , leading some people to wonder if cell phone usage is the reason for the   30  .

    Some people say the biggest danger   31   cell phones isn’t from the either real or perceived potential to develop cancer, but from   32   while using the cell phone. How many of us have seen vehicles driving   33   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   34   on a cell phone. It is a proven fact that a driver on a cell phone is   35   attentive and more likely to get in an accident. And, hands-free sets aren’t the   36   that some people may believe. Yes, they   37   both hands for driving and prevent a person from getting a sore(*疼的) arm,   38   the driver’s mind is still   39   the conversation and therefore less attentive to what is   40   around him or her on the road.

21. A. which                       B. where                     C. there                      D. here

22. A. busy                         B. always                    C. occasional                     D. occasionally

23. A. under                       B. on                    C. from                        D. to

24. A. been exploded         B. exploded          C. been exploding              D. exploding

25. A. millions                    B. millions of        C. million                     D. million of

26. A. well                          B. good                C. better                            D. best

27. A. delivering                 B. carrying           C. taking                            D. sending

28. A. may                          B. must                C. can                         D. should

29. A. allowed                           B. invented          C. introduced                     D. bought

30. A. increase                          B. decline             C. improvement          D. rose

31. A. with                          B. before                     C. in                                   D. on

32. A. attention                  B. attractive         C. careless                 D. inattentiveness

33. A. quite                        B. almost                     C. hardly                            D. nearly

34. A. using                        B. talking                     C. moving                   D. handing

35. A. more                        B. less                  C. least                       D. fewer

36. A. problem                          B. question          C. mean                      D. answer

37. A. hold up                           B. pick up             C. put up                            D. free up

38. A. therefore                  B. as                    C. but                          D. though

39. A. taken up                  B. filled by            C. occupied with         D. picked up

40. A. happening to                  B. going on          C. talking about          D. moving about

【回答】

知识点：科普环保类

题型：完型填空