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[主观题]

Women live longer than men because they are spoiled for choice. That is the startling conc

lusion of an international group of scientists who say they have found the cause of female longevity.

They say females have two separate cell lines in their bodies, while men have only one. Women in old age can "choose" the more robust (强壮的) of these lines and survive for many more years.

Why there should be such a persistent cross-cultural gap between the life spans of the sexes has baffled scientists until now. In a paper in the journal Blood, and reported in the current issue of New Scientist, researchers at Odense University in Denmark and Ulleval University Hospital in Norway point to a key difference in the sex-determining chromosomes (染色体) found in the cells of men and women.

Every cell in a woman's body has two X chromosomes, one inherited from her mother and the other from her father. In each cell, one of these two X chromosomes is switched off. This means that a woman is a mosaic (混合体) of two cell lines: one derived from her father's X chromosome, the other from her mother's. By contrast, every cell in a man's body has an X and a Y chromosome, neither of which is turned off. He has only one cell line. This difference could be crucial in determining the long-term health of men and women, scientists concluded, and so they decided to examine cells taken from young women.

They found an even division between their two different lines. However, when they looked at elderly females they found their bodies now favoured one set of cells at the expense of the other line. "This suggests that one of the cell lines is 'better' than the other," say the researchers. In other words, women's bodies may select the more vigorous of the two cell lines and allow it to predominate the twilight of their years, giving them a crucial advantage over men, who have no chance of choosing the healthier of two sets of cells.

Women enjoy a longer life than men because______.

A．women are entitled to longevity

B．women are favoured by God

C．women are born to be so

D．women are spoiled in the world

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发布时间：2020-09-05

更多“Women live longer than men because they are spoiled for choice. That is the startling conc”相关的问题

第1题

The title of this passage can be______.A．Women's HeartsB．Why Women Live Longer Than MenC．P

The title of this passage can be______.

A．Women's Hearts

B．Why Women Live Longer Than Men

C．People's Hearts Pumping Power

D．How Can Women Live Longer Than Men

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第2题

Which of the following does NOT support "work is helpful to health"？A．Working women are in

Which of the following does NOT support "work is helpful to health"？

A．Working women are in better health than housewives.

B．People leading a hard life live longer than others.

C．Hardworking people live a longer life.

D．The death rate rises with the unemployment rate.

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第3题

Why do women live longer than men？ ______A．Because women's pumping power is better.B．Becau

Why do women live longer than men？ ______

A．Because women's pumping power is better.

B．Because women live five years longer than men.

C．Because male's heart is weaker than female's.

D．Because the power of women ' s hearts decrease.

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第4题

The doctor tried to get the answer________. A．why certain people age sooner th

The doctor tried to get the answer________.

A．why certain people age sooner than others

B．how to make people live longer

C．what size certain people's brains is

D．which people are most intelligent

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第5题

What is suggested about outsiders who now live in the country？A．That country people no lon

What is suggested about outsiders who now live in the country？

A．That country people no longer reject them.

B．That they often do work like servicing cars and digging gardens.

C．That the men and women who work for them are from the city.

D．That many of them have been in the countryside for a long time.

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第6题

Sleeping People who sleep for more than eight hours a night do not live as long as th

Sleeping

People who sleep for more than eight hours a night do not live as long as those who sleep for six hours, according to the biggest study yet into sleep patterns and mortality

Scientists have no explanation for the findings and do not know if they mean people who like a lie-in (睡懒觉) can extend their lives by sleeping less.

Although it is a common belief that sleeping for at least eight hours a night is vital for health and well-being, the six-year study involving more than 1.1 million Americans older than 30 found that those who slept for less than eight hours were far from doing themselves any long-term harm.

"Individuals who now average 6.5 hours of sleep a night can be reassured that this is a safe amount of sleep. From a health standpoint, there is no reason to sleep longer, said Daniel Kripke, a professor of psychiatry (精神病学) at the University of California, San Diego.

Dr. Kripke said, "We don't know if long sleep periods lead to death. Additional studies are needed to determine if setting your alarm clock earlier will actually improve.The scientists，who were funded by the American Cancer Society, found that the best survival rates were among the men and women who slept for seven hours a night. Those who slept for eight hours were 12 per cent more likely to die during the six-year period of the study, when other factors such as diet and smoking were taken into account.

Even those who spent a mere five hours a night in bed lived longer than those who slept eight or more hours. However, an increasing death rate was found among those who slept for less than five hours.

Dr. Kripke said, "Previous sleep studies have indicated that both short- and long-duration (持续时间) sleep had higher mortality rates. However, none of those studies were large enough to distinguish the difference between seven and eight hours a night, until now."

第 16 题 More than one million Americans participated in the six-year study.

A．Right

B．Wrong

C．Not mentioned

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第7题

Women have more problems than men in old age. First of all, they have less money—or no mon

ey at all—and because of this, they often feel they get less respect, even at home. Quite a large number have no pension (退休金) because they have never worked outside the home, and thirty-eight percent are supported mainly by their husbands or children. Second, a larger number of old women than old men become widows (single women). Men are normally older than the women they marry, and women generally live longer than men. The remarriage among older widows is lower than that among widowers (single men). Statistics (统计) from 1990 in Shanghai show only 52 percent of elderly women with husbands still living, compared to (与……相比) 82 percent of men.

Because of lower incomes and the difficulty of remarriage, many elderly women who live alone, are poor and have almost no social life. Even an old couple lives with children, it is the woman who ends up doing the work around the house. She cleans the rooms, prepares meals, and takes care of the family. Some 75 percent of them carry out such heavy physical tasks as buying and carrying grain, coal and other supplies for the home. How to improve the quality of life of women in their later years is a problem that needs to be dealt with by all the society.

If they had more money, elderly women______.

A．would have no more problems

B．could live a fairy life

C．would get more respect

D．would need no care of others

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第8题

听力原文： The family is changing. In the past, grandparents, parents, and children used to

live together, and they had an extended family. Sometimes two or more brothers with their wives and children were part of this large family group. But family structure is changing throughout the world. Nowadays, many families consist of only one father, one mother, and children. It is becoming the main family structure everywhere.

The new family structure offers married women some advantages: they have freedom from their relatives, and the husband does not have all the power of the family. Studies show that in these families, men and women usually make an equal number of decisions about family lives.

In the past, wives usually have to pay for the benefits of freedom and power. When women lived in extended families, sisters and grandparents and aunts helped one another with housework and childcare. In addition, older women in a large family group had important positions.

But now, wives do not often enjoy this benefit, and they have another disadvantage too: women generally live longer than their husbands, so older women from these families often have to live alone. Studies show that women are generally less satisfied with marriage than men are. In the past, men worked outside the home and women worked inside. Housework and childcare were a full time job, and there was no time for anything else. Now women work outside and have more freedom than they did in the past, but they still have to do most of the housework. The women actually have two full-time jobs, and they have not much free time.

(33)

A．There were only grandparents and children.

B．There were many relatives.

C．There was one father, one mother, and their children.

D．There were two or more brothers with their wives.

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第9题

CWomen have more problems than men in old age. First of all, they have less money--or no m

oney at all-- and because of this, they often feel they get less respect, even at home. Quite a large number have no pension (退休费) because they have never worked outside the home, and thirty-eight percent are supported mainly by their husbands or children. Second, a larger number of old women than old men become window (single women). Men are normally older than the women they marry, and women generally live longer than men. The remarriage among older windows is lower than that among widows (single men). Statistics (统计) from 1990 in Shanghai show only 52 percent of elderly women with husbands still living, compared to (与…相比) 82 percent of men.

Because of lower incomes and the difficulty of remarriage, many elderly women who live alone, are poor and have almost no social life. Even an old couple lives with children, it is the woman who ends up doing the work around the house. She cleans the rooms, prepares meals, and takes care of the family. Some 75 percent of them carry out such heavy physical tasks as buying and carrying grain, coal and other supplies for the home. How to improve the quality of life of women in their later years is a question that needs to be dealt with by all the society.

第44题：If they had more money, elderly women ________.

[A] would have no more problem

[B] could live a fairy life

[C] would get more respect

[D] would need no care of others

点击查看答案

第10题

听力原文：The family is changing. In the past, grandparents, parents, and children used to

听力原文： The family is changing. In the past, grandparents, parents, and children used to live together, and they had an extended family. Sometimes two or more brothers with their wives and children were part of this large family group. But family structure is changing throughout the world. Nowadays, many families consist of only one Father, one mother, and children. It is becoming the main family structure everywhere.

The new family structure offers married women some advantages: they have freedom from their relatives, and the husband does not have all the power of the family. Studies show that in these families, men and women usually make an equal number of decisions about family lives.

In the past, wives usually have to pay for the benefits of freedom and power. When women lived in extended families, sisters and grandparents and aunts helped one another with housework and childcare. In addition, older women in a large family group had important positions.

But now, wives do not often enjoy this benefit, and they have another disadvantage too: women generally live longer than their husbands, so older women from these families often have to live alone. Studies show that women are generally less satisfied with marriage than men are. In the past, men worked outside the home and women worked inside. Housework and childcare were a full time job, and there was no time for anything else. Now women work outside and have more freedom than they did in the past, but they still have to do most of the housework. The women actually have two full-time jobs, and they have not much free time.

(30)

A．There were only grandparents and children.

B．There was one father, one mother, and their children.

C．There were many relatives.

D．There were two or more brothers with their wives.

点击查看答案

第11题

C Women have more problems than men in old age. First of all, they have less money—or no m

C

Women have more problems than men in old age. First of all, they have less money—or no money at all—and because of this, they often feel they get less respect, even at home. Quite a large number have no pension (退休金) because they have never worked outside the home, and thirty-eight percent are supported mainly by their husbands or children. Second, a larger number of old women than old men become widows (single women). Men are normally older than the women they marry, and women generally live longer than men. The remarriage among older widows is lower than that among widowers (single men). Statistics (统计) from 1990 in Shanghai show only 52 percent of elderly women with husbands still living, compared to (与……相比) 82 percent of men.

Because of lower incomes and the difficulty of remarriage, many elderly women who live alone, are poor and have almost no social life. Even an old couple lives with children, it is the woman who ends up doing the work around the house. She cleans the rooms, prepares meals, and takes care of the family. Some 75 percent of them carry out such heavy physical tasks as buying and carrying grain, coal and other supplies for the home. How to improve the quality of life of women in their later years is a problem that needs to be dealt with by all the society.

If they had more money, elderly women______.

A. would have no more problems

B. could live a fairy life

C. would get more respect

D. would need no care of others

点击查看答案

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