詞匯：
Mice n. 老鼠（復(fù)數(shù)）
bioethicist n. 生物倫理學(xué)家
Sibling n. 兄弟姐妹
注釋?zhuān)?BR> 1. brothers and sisters born 50 years apart 出生年份相隔50年的兄弟姐妹
2. We had better not go anywhere near it 我們離它遠(yuǎn)點(diǎn)，這里的it指代前面講的anti-ageing technology。
練習(xí)：
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.
答案與題解：
1. B 長(zhǎng)壽使個(gè)人能做的事主要在第3、4段里講到，作者沒(méi)有提到長(zhǎng)壽可以讓人更多地接受教育
2. A 本題答案以下面的這兩句話為依據(jù): People are already finding it more difficult to stay married. Divorce rates are rising.暗示美國(guó)人目前的婚姻關(guān)系已經(jīng)十分脆弱。
3. B 文章的第9段講了壽命延長(zhǎng)、退休推遲可能帶來(lái)的種種問(wèn)題，但作者沒(méi)有提到雇傭者需要更多的錢(qián)來(lái)支付員工的工資。
4. C 答案可以在10、11這兩段里找到。
5. C 本題的答案依據(jù)可以在最后一段里找到。Callahan 認(rèn)為在搞清楚長(zhǎng)壽社會(huì)會(huì)給我們帶來(lái)哪些問(wèn)題之前，不要急著搞抗衰老的技術(shù)，可見(jiàn)他對(duì)抗衰老技術(shù)的發(fā)展是有保留的。
Mice n. 老鼠（復(fù)數(shù)）
bioethicist n. 生物倫理學(xué)家
Sibling n. 兄弟姐妹
注釋?zhuān)?BR> 1. brothers and sisters born 50 years apart 出生年份相隔50年的兄弟姐妹
2. We had better not go anywhere near it 我們離它遠(yuǎn)點(diǎn)，這里的it指代前面講的anti-ageing technology。
練習(xí)：
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.
答案與題解：
1. B 長(zhǎng)壽使個(gè)人能做的事主要在第3、4段里講到，作者沒(méi)有提到長(zhǎng)壽可以讓人更多地接受教育
2. A 本題答案以下面的這兩句話為依據(jù): People are already finding it more difficult to stay married. Divorce rates are rising.暗示美國(guó)人目前的婚姻關(guān)系已經(jīng)十分脆弱。
3. B 文章的第9段講了壽命延長(zhǎng)、退休推遲可能帶來(lái)的種種問(wèn)題，但作者沒(méi)有提到雇傭者需要更多的錢(qián)來(lái)支付員工的工資。
4. C 答案可以在10、11這兩段里找到。
5. C 本題的答案依據(jù)可以在最后一段里找到。Callahan 認(rèn)為在搞清楚長(zhǎng)壽社會(huì)會(huì)給我們帶來(lái)哪些問(wèn)題之前，不要急著搞抗衰老的技術(shù)，可見(jiàn)他對(duì)抗衰老技術(shù)的發(fā)展是有保留的。