Do you know that 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 ageing(变老) 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．ageing            D．effect

2. The text mainly talks about ________.

A．men’s heart cells                      B．women’s ageing 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 ageing

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 ageing 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

阅读理解

　　The police in a big city were searching for a thief. At last they caught him. But while they were taking photos of him from the front, from the left, from the right, with a hat, without a hat, he suddenly hit the policeman and ran away. They tried to catch him. But he got away.

　　Then a week later, the telephone rang in the police office, and somebody said, “You are looking for Bill Cross, aren't you?”

　　“Yes.”

　　“Well, he left here for Waterbridge an hour ago.”

　　Waterbridge was a small town about 100 kilometers away from the city. The city police at once sent four different photos of the thief to the police in Waterbridge.

　　Less than twelve hours later they got a telephone call from the police in Waterbridge.

　　“We have caught three of the men,” they said proudly, “and will catch the fourth this evening.”

1．The police in the big city took ________ photos of the thief.

[　　]

2．Bill Cross was the name of ________.

[　　]

A．the thief

B．the man who phoned the police

C．a policeman

D．a bridge between the city and the town

3．The police were told that the thief had gone to Waterbridge ________.

[　　]

A．a week before

B．an hour before

C．twelve hours before

D．by twelve o'clock

4．Which of the following is true?

[　　]

A．The city police gave the wrong information.

B．The city police gave the wrong photos.

C．The town police caught three thieves.

D．The town police caught three people.

5．From this story we know that the police in Waterbridge ________.

[　　]

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