Question

Since the beginning of history, man has been attracted by the idea of living forever, of winning the fight against death and disease. So far, this has only remained a dream. Many people have wondered whether it would be possible to find a way to preserve human bodies, and what would be the best way.
It has long been known that meat of fruit can be kept fresh for long periods by freezing; in ancient China, for example, food was stored with ice to keep it fresh. This method could also be useful for preserving humans.
However, most living beings that exist under warm conditions die when frozen. This is because of the harmful effects of freezing ice crystals(晶體), which not only are larger than the volume(體積) of the water originally in the cells, but also form sharp cutting shapes that harm the cells.
In the 1940s Dr B.J. Luyet and a group of scientists in England were working on the problem of freezing cells without damaging them. Since the harm caused by ice crystals was the main cause of damage, Luyet suggested removing some or all of the water from the cells before freezing them.
Using living cells form chicken, Luyet and his assistants discovered that they could partly dry the chicken cells, using a mixture of the white part of an egg and glycerin (丙三醇). Some success was obtained. The chicken cells were dried, frozen for a period of time, and then carefully unfrozen. Almost all the cells recovered when they reached normal temperatures.
Since then, the cooling of whole animals to a temperature far below freezing point for later unfreezing has become more of a possibility, and the glycerin method would probably be used to accomplish this. When this can be done completely and successfully, science will have moved much closer to its aim of freezing and storing incurable patients until the day they can be cured.
【小題1】What does the passage mainly talk about?

A．Easy but practical ways to remove water from living cells.

B．The possibility of preserving human bodies by freezing.

C．The practice of preserving food by freezing.

D．The harmful effects of freezing.

【小題2】The idea of freezing human bodies to preserve them ______________.

A．has already been realized

B．was invented in ancient China

C．has its roots in the way of storing food

D．is widely accepted by the scientific world

【小題3】According to the text, freezing _________________.

A．is harmful to living cells

B．is the best way of preserving food

C．reduces the volume of water in living cells

D．is a way of removing water from living cells

【小題4】What can be inferred from the last paragraph?

A．It is impossible to have whole animals frozen.

B．It remains unknown how to unfreeze frozen animals.

C．Freezing incurable patients for later treatment is still an idea.

D．The glycerin method has already been adopted to treat patients.

Answer 1

【小題1】B
【小題2】C
【小題3】A
【小題4】C

解析試題分析：這篇文章講的是通過冷凍的方法保存人類身體的可能性。因?yàn)槔鋬鰧�活的�?xì)胞是有害的，科學(xué)家用glycerin方法解決了這個問題，這個方法可用于冷凍不可治愈的病人供以后治療。
【小題1】主旨題：從第一段的句子：Many people have wondered whether it would be possible to find a way to preserve human bodies, and what would be the best way. 可知這篇文章講的是通過冷凍的方法保存人類身體的可能性。選B
【小題2】細(xì)節(jié)題：從第二段的句子：It has long been known that meat of fruit can be kept fresh for long periods by freezing; in ancient China, for example, food was stored with ice to keep it fresh. This method could also be useful for preserving humans. 可知冷凍保存人類身體的辦法是來自于保存食品。選C
【小題3】細(xì)節(jié)題：從第三段的句子：This is because of the harmful effects of freezing ice crystals(晶體), which not only are larger than the volume(體積) of the water originally in the cells, but also form sharp cutting shapes that harm the cells 可知冷凍對活的細(xì)胞是有害的，選A
【小題4】細(xì)節(jié)題：從最后一段的句子：When this can be done completely and successfully, science will have moved much closer to its aim of freezing and storing incurable patients until the day they can be cured. 可知冷凍不可治愈的病人供以后治療還是一個想法。選C
考點(diǎn)：考查科普類短文
點(diǎn)評：這篇文章講的是通過冷凍的方法保存人類身體的可能性。這篇閱讀理解集中考查了細(xì)節(jié)理解題，要求考生仔細(xì)閱讀全文，做好相應(yīng)的標(biāo)志，以提高閱讀的效率和速度，做題時要審清題干，發(fā)覺和把握試題中有效的提示性信息，確認(rèn)命題的角度、閱讀范圍和答題方式。