三、完型填空(共20题;每题1.5分，共30分)

　　通读下面的短文，掌握其大意，然后从每题的四个选项中选出可以填入相应空白处的最佳选项。

　　People 36 the age of sixty-five in the United States are called senior citizens. Life for these people is different from that 37 younger Americans. 38 senior citizens retire or no longer work full time. Also, it is 39 for people of this age to live with their children and grandchildren.

　　For many senior citizens, the years after sixty-five are not 40 . They feel that their lives lose meaning after retirement. In 41 , they may feel lonely 42 away from their families and the 43 they had in their work. 44 , they become more worried about their health as they grow older, and 45 their safety if they live in big cities. 46 senior citizens enjoy their lives. They feel free to do what they 47 not able to 48 they were working and 49 families. They now have time to enjoy 50 and sports and travel. The 51 of senior citizens in the United States is increasing rapidly because people are living longer than before. 52 of their larger numbers and more active life styles, senior citizens are 53 social influence in the country. The time 54 come all Americans will look 55 to becoming senior citizens.

　　36. A. of B. over C. on D. at

　　37. A. of B. in C. to D. with

　　38. A. All B. Most C. Few D. No

　　39. A. normal B. typical C. common D. unusual

　　40. A. miserable B. excited C. enjoyable D. pitiful

　　41. A. addition B. part C. case D. time

　　42. A. are B. being C. been D. be

　　43. A. joins B. relations C. contacts D. all

　　44. A. However B. Moreover C. Therefore D. Otherwise

　　45. A. in B. without C. for D. about

　　46. A. Other B. Less C. Another D. Many

　　47. A. do B. are C. were D. can

　　48. A. when B. before C. after D. until

　　49. A. growing B. raising C. bringing D. caring

　　50. A. habits B. habit C. hobbies D. hobby

　　51. A. age B. life C. number D. world

　　52. A. Because B. Despite C. With D. Except

　　53. A. putting B. finding C. winning D. gaining

　　54. A. can B. may C. must D. should

　　55. A. in B. down C. forward D. up