练习：
1. Which of the following is NOT mentioned as one of the things that living longer might enable an individual to do？
A)Spending more time with his family.
B)Having more education.
C)Realizing more dreams.
D) Working longer.
2. Which of the following is implied in the sixth paragraph？
A)Marriages in the US today are quite unstable.
B) More and more people in the US today want to get married.
C)Living longer would make it easier for people to maintain their marital ties.
D) If people live longer， they would stay in marriage longer.
3. All of the following are possible effects living longer might have on working life EXCEPT
A)Communication between employers and employees would be more difficult.
B)More money would be used by employees in payment of their employees.
C)The job market would be more competitive.
D)It would be more difficult for young people to be promoted to top positions.
4. An important feature of a society in which people live a long life is that
A)it places more emphasis on educating the young.
B)it is both wise and energetic.
C)it lacks the curiosity to experiment what is new.
D)it welcomes Changes.
5. Which of the following best describes Callahan’s attitude to anti-ageing technology？
A)Optimistic.
B)Pessimistic.
C)Reserved.
D) Negative
答案与题解：
1.B 长寿使个人能做的事主要在第3、4段里讲到，作者没有提到长寿可以让人更多地接受教育。
2.A 本体答案以下面的这两句话为依据： People are already finding it more difficult to stay married. Divorce rates are rising. 暗示美国人目前的婚姻关系已经十分脆弱。
3.B 文章中的第9段讲了寿命延长、退休推迟可能带来的种种问题，但作者没有提到雇佣者需要更多的钱来支付员工的工资。
4.C 答案可以再10、11这两段里找到。
5.C 本体的答案依据可以在最后一段里找到。Callahan 认为在搞清楚长寿社会会给我们带来哪些问题之前，最好不要急着搞抗衰老的技术。可见他对抗衰老技术的发展是有保留的。