86. According to this passage, the status of the aged is lowered by their ____.

　　A. forced retirement B. inferior housing

　　C. longer life span D. fixed incomes

　　87. The sentence “our life span outpaces our usefulness” means we can live longer ____.

　　A. and make progress B. and do more work

　　C. but move slowly D. but become useless

　　88. The author’s attitude toward the aged is ____.

　　A. realistic B. optimistic C. pessimistic D. sympathetic

　　89. It can be deduced from this passage that one should ____.

　　A. learn new skills B. be open-minded

　　C. have a good personality D. keep pace with the times

　　90. Which of the following would be the best title for this passage?

　　A. The Problem of Aging B. Social Structures

　　C. Economic Technology D. Continuing Education

　　参考答案：

　　81. B 82. D 83. C 84. C 85. B 86. A 87. D 88. D 89. D 90. A