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Why do men die earlier than women? The l...

Why do men die earlier than women? The latest research makes it known that the reason could be that men’s hearts go into rapid decline when they reach middle age.

The largest study of the effects of aging on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age.

“We have found that the power of the male heart falls by 20--25 percent between 18 and 70 years of age,” said the head of the study, David Goldspink of Liverpool John Moores University in the UK.

“Within the heart there are millions of cells that enable it to beat. Between the age of 20 and 70, one-third of those cells die and are not replaced in men,” said Goldspink. “This is part of the aging process.”

What surprises scientists is that the female heart sees very little loss of these cells. A healthy 70-year-old woman’s heart could perform almost as well as a 20-year-old one’s.

“This gender difference might just explain why women live longer than men,” said Goldspink.

They studied more than 250 healthy men and women between the ages of 18 and 80, focusing on healthy persons to remove the confusing influence of disease.

The team has yet to find why ageing takes a greater loss on the male heart, said Goldspink.

The good news is that men can improve the health of their heart with regular exercise. Goldspink stressed that women also need regular exercise to prevent their leg muscles becoming smaller and weaker as they age.

1.The underlined word “longevity” in the second paragraph probably refers to ______.

A. health          B. long life        C. aging           D. effect

2.The text mainly talks about ______.

A. men’s heart cells                  B. women’s aging process

C. the gender difference               D. hearts and long life

3.According to the text, the UK scientists have known that ______________.

A. women have more cells than men when they are born

B. women can replace the cells that enable the heart to beat

C. the female heart loses few of the cells with age

D. women never lose their pumping power with age

4.If you want to live longer, you should ___________.

A. enable your heart to beat much faster

B. find out the reason for aging

C. exercise regularly to keep your heart healthy

D. prevent your cells from being lost

5.We can know from the passage that __________.

A. the reason why aging takes a greater loss on the male heart has been found out

B. scientists are on the way to finding out why the male heart loses more of the cells

C. the team has done something to prevent the male from suffering the greater loss

D. women over 70 could lose more heart cells than those at the age of 20

 

1.B 2.D 3.C 4.C 5.B 【解析】 试题分析:本文属于科普类短文,主要介绍科学家们研究发现女性比男性活得更久的原因是女性心脏的衰老比男性更慢。 1.B 猜测词义题。根据文章第一句Why do men die earlier than women?可知实际上女性并男性活得更长。本句The largest study of the effects of aging on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age.其中women’s longevity 就是指女性并男性活得更长。故B正确。 2.D 主旨大意题。作者在本文中介绍了一项研究结果:女性比男性活得更长主要是因为女性的心脏比男性衰老的更慢。说明本文讲述的是心脏和长寿的关系。 3.C 细节题。根据第五段第一句What surprises scientists is that the female heart sees very little loss of these cells.可知科学家已经知道随着年龄的增加,女性心脏器官的衰老比男性更慢。故C正确。 4.C 细节题。根据最后一段第一句The good news is that men can improve the health of their heart with regular exercise.可知如果我们要长寿,可以通过锻炼来增强我们的心脏。故C正确。 5.B 细节题。根据倒数第二段The team has yet to find why ageing takes a greater loss on the male heart, said Goldspink.得知科学家正在研究为什么男性的心脏更容易衰老。故B正确。 【名师点睛】 科普类阅读一直以来都是学生最怕的一种类型,尤其是科普类短文的词汇。从词汇角度来看,在科普类文中,词汇的意义比较单一、稳定、简明,不带感情色彩,具有单一性和准确性的特点。由于科普类文章读者对象是大众,所以语言上力求浅显易懂,用通俗的语言解释某种科学现象和科学道理,但其中有些词汇仍带有很强的术语性的烙印。但通过上下文解释考生可以推定词义,从而顺利解题。因此,科普类文章中尽管有专业词汇和术语,但可以通过上下文、构词法等来理解题目,猜出题意。 以本文第11题为例:The underlined word “longevity” in the second paragraph probably refers to ______.要求我们猜测longevity的含义。文章第一句Why do men die earlier than women?为什么男性死得比女性更早。也就是说女性活得更长。所以The largest study of the effects of aging on the heart has found that women’s longevity may be linked to the fact that their hearts do not lose their pumping power with age.中的longevity应该指long life。故B正确。 考点:考查科普类阅读
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1.Why did the Chinese couple try to name their baby “@”?

A. Because they wanted their baby to have a special name.

B. Because they wanted their baby to have an international name.

C. Because the @ symbol is familiar to email users all over the world.

D. Because the @ symbol sounds something like “ai ta”, which means “love him” in Chinese.

2.It can be inferred that ___________.

A. Li Yuming is in favor of the baby’s name

B. many Chinese people use Arabic numerals in their names

C. a majority of the Chinese people are having longer names

D. there is little possibility for the “@” name to be officially accepted

3.The underlined part in the passage probably means___________.

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B. even native speakers can’t find these characters in their computers

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D. even those who are expert at Chinese find it hard to accept these names

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A. people often mispronounce his name

B. there is an uncommon character in his name

C. he often made newspaper editors annoyed during his term in office

D. he once stressed the importance of standardizing Chinese characters

5.The passage is mainly about ___________.

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B. the importance of standardizing Chinese characters

C. a ban on names using Arabic numerals and foreign languages

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