D

　　Build the highway and watch the town grow.At first a few shops appear and maybe a restaurant.Then a hotel opens. Eventually new house are built. A village is born.

　　This is also how the virtual world has developed. Think of the Internet as the road carrying information between two computers.Think of the World Wide Web as the village. At first it is just a place on the virtual road where travelers meet. More travelers come bringing new kinds of information. New travelers come bringing new kinds of information.New villages are started.

　　Every willage has a founder.Tim Berners-Lee is the man who wrote the software programme that led to the foundation of the Word Wide Web.How did he get the idea? He tells us on his own web site. "One of the things computers were not able to do was store in formation from different sources. The dream behind the Web is of a common space in which we communicate by sharing information."

　　In 1991 his programmmes were placed on to the Internet.Everyone was welcome to use them.

　　Tim Berners-Lee could have followed the Microsoft route by forming a company to sell the programmes he invented. Or he could have joined another company. But in his view the Web is a language,not a pproduct. Charging a gee for using his programmes would have slowed the growth of the Web.And other companies would make similar products to compete. Instead of one World Wide Web there would be several smaller Webs. Each would use incompatible (不相容的) software. They Web is valuable because it uses a common computer language to reach people and share information. Competing webs would lose this value.Imagine if somebody sent you a bill every time you spoke a world of English.

　　In 1994 Tim Berners-Lee formed the World Wide Web Consortium,or W3C.More than 200 leading companies and laboratories are represented by W3C. Together they make sure that everyone, no matter what their equipment or solftware,can work equally on the Web.

　　"The Web can help people to understand the way that others live and love. It helps us understand the humanity of people," he says.

　　68.The writer's purpose in writing the first two paragraphs is to ______.

　　　A.give us some idea of the Internet

　　　B.give us some idea of the Web

　　　C.tell us how the idea of Web started

　　　D.tell us the idea of the Web is wonderful

　　69.Tim Berners-Lee invented the World Wide Web in order to _____

　　　A.place his programmers on the Internet

　　　B.stop smaller webs appearing

　　　C.help people to form a web site

　　　D.let people share all kinds of information

　　70.According to the text,the disadvantage of competing webs is that they would ______.

　　　A.slow the development of the Web

　　　B.destroy the whole web system

　　　C.lose the value of information

　　　D.waste a lot of money

阅读下面短文，掌握其大意，然后从各题所给的四个选项中，选出最佳答案.

　　Tim Becker and his neighbors are doing something to make their neighborhood a trouble-free area.

　　When Tim Becker gets in his car to go shopping, he doesn't 1 drive to a store and back home. He always looks 2 up and down the streets of his

　　neighborhood. He looks for anything 3 such as strange cars, loud noises, 4 windows, or people gathering on street comers.

　　Tim 5 to a neighborhood watch group in Stoneville, Indiana, USA. The neighborhood watch group 6 on the third Wednesday of every month, That's 7 Tim gets together with about ten of his neighbors to discuss community 8 . Members of the neighborhood watch group want to help the police 9 their homes, streets, and families safe.

　　Tina Stedman, president of 10 neighborhood watch group, agrees with Tim. “People seem to think that crime（犯罪）happens to other people but not 11 them. Well, it's never happened to me,” she said, “but I don't think anyone has the 12 to steal from other people or to make them feel 13 sitting in their own homes.”

　　Alex, a member of the group, says that all the neighbors 14 out for one another. “We 15 each other's homes. We keep watch on the neighborhood at night and on weekends. Usually a 16 of four or five of us goes out together. If something doesn't look right, then we call the 17 .For example, if we notice a group of teenagers who seem to be looking for 18 , or someone destroying property（财产）, we report to the police.”

　　Alex feels the neighborhood watch groups 19 a lot in keeping crime down. Her husband Jim agrees, “Police are good people, but they can't do 20 .”

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LONDON----Here’s a new warning from health experts: Sitting is deadly.
Scientists are increasingly warning that sitting for prolonged periods — even if you also exercise regularly — could be bad for your health. And it doesn’t matter where the sitting takes place — at the office, at school, in the car or before a computer or TV — just the overall number of hours it occurs. Several studies suggest people who spend most of their days sitting are more likely to be fat, have a heart attack or even die.
　　In an editorial published this week in the British Journal of Sports Medicine, Elin EkblomBak of the Swedish School of Sport and Health Sciences suggested that authorities rethink how they define physical activity to highlight the dangers of sitting.
　　While health officials have issued guidelines recommending minimum amounts of physical activity, they haven’t suggested people try to limit how much time they spend in a seated position.
　　"After four hours of sitting, the body starts to send harmful signals," Ekblom-Bak said. She explained that genes regulating(调节) the amount of glucose（葡萄糖） and fat in the body start to shut down.
　　Even for people who exercise, spending long periods of time sitting at a desk is still harmful. Tim Armstrong, a physical activity expert at the World Health Organization, said people who exercise every day — but still spend a lot of time sitting — might get more benefit if that exercise were spread across the day, rather than in a single bout.（一回）
　　Still, in a study published last year that tracked more than 17,000 Canadians for about a dozen years, researchers found people who sat more had a higher death risk, independently of whether or not they exercised.
　　"We don’t have enough evidence yet to say how much sitting is bad," said Peter Katzmarzyk of the Pennington Biomedical Research Center in Baton Rouge, who led the Canadian study. "But it seems the more you can get up and interrupt this sedentary behavior, the better."
　　Figures from a U.S. survey in 2003-2004 found Americans spend more than half their time sitting, from working at their desks to sitting in cars.
　　Experts said more research is needed to figure out just how much sitting is dangerous, and what might be possible tooffset those effects.
　　"People should keep exercising because that has a lot of benefits," Ekblom-Bak said. "But when they’re in the office, they should try to interrupt sitting as often as possible," she said.
【小题1】What is the best title for the text?

LONDON----Here’s a new warning from health experts: Sitting is deadly.

     Scientists are increasingly warning that sitting for prolonged periods — even if you also exercise regularly — could be bad for your health. And it doesn’t matter where the sitting takes place — at the office, at school, in the car or before a computer or TV — just the overall number of hours it occurs. Several studies suggest people who spend most of their days sitting are more likely to be fat, have a heart attack or even die.

　　In an editorial published this week in the British Journal of Sports Medicine, Elin EkblomBak of the Swedish School of Sport and Health Sciences suggested that authorities rethink how they define physical activity to highlight the dangers of sitting.

　　While health officials have issued guidelines recommending minimum amounts of physical activity, they haven’t suggested people try to limit how much time they spend in a seated position.

　　"After four hours of sitting, the body starts to send harmful signals," Ekblom-Bak said. She explained that genes regulating(调节) the amount of glucose（葡萄糖） and fat in the body start to shut down.

　　Even for people who exercise, spending long periods of time sitting at a desk is still harmful. Tim Armstrong, a physical activity expert at the World Health Organization, said people who exercise every day — but still spend a lot of time sitting — might get more benefit if that exercise were spread across the day, rather than in a single bout.（一回）

　　Still, in a study published last year that tracked more than 17,000 Canadians for about a dozen years, researchers found people who sat more had a higher death risk, independently of whether or not they exercised.

　　"We don’t have enough evidence yet to say how much sitting is bad," said Peter Katzmarzyk of the Pennington Biomedical Research Center in Baton Rouge, who led the Canadian study. "But it seems the more you can get up and interrupt this sedentary behavior, the better."

　　Figures from a U.S. survey in 2003-2004 found Americans spend more than half their time sitting, from working at their desks to sitting in cars.

　　Experts said more research is needed to figure out just how much sitting is dangerous, and what might be possible to offset those effects.

　　"People should keep exercising because that has a lot of benefits," Ekblom-Bak said. "But when they’re in the office, they should try to interrupt sitting as often as possible," she said.

1.What is the best title for the text?

A. Not Sitting Too Much While Working      B. How To Avoid Sitting Too Much

C. Sitting Too Much Could Be Deadly          D. More And More People Sit Too Much

2.According to the research,______________.

A. the more time you spend in exercising in a single bout, the healthier you will be.

B. those who often sit too much are sure to grow fat or suffer from a heart attack.

C. regular exercise is effective to get rid of the side effect of sitting too much.

D. you had better not sit for more than four hours in a single bout.

3.How does the danger of sitting too much affect the human body?

A. It results in a higher death risk.

B. It increases glucose and fat in the body.

C. It makes a person unable to exercise long enough in a day.

D. It causes the gene to fail to balance the glucose and fat in the body.

4.In the opinion of Ekblom-Bak, you’d better have a rest in the office by________.

A. sending your friends e-mails           

B. having a walk around your office

C. chatting online or playing computer games 

D. listening to music with your head on the desk.

D
　　Build the highway and watch the town grow.At first a few shops appear and maybe a restaurant.Then a hotel opens. Eventually new house are built. A village is born.
　　This is also how the virtual world has developed. Think of the Internet as the road carrying information between two computers.Think of the World Wide Web as the village. At first it is just a place on the virtual road where travelers meet. More travelers come bringing new kinds of information. New travelers come bringing new kinds of information.New villages are started.
　　Every willage has a founder.Tim Berners-Lee is the man who wrote the software programme that led to the foundation of the Word Wide Web.How did he get the idea? He tells us on his own web site. "One of the things computers were not able to do was store in formation from different sources. The dream behind the Web is of a common space in which we communicate by sharing information."
　　In 1991 his programmmes were placed on to the Internet.Everyone was welcome to use them.
　　Tim Berners-Lee could have followed the Microsoft route by forming a company to sell the programmes he invented. Or he could have joined another company. But in his view the Web is a language,not a pproduct. Charging a gee for using his programmes would have slowed the growth of the Web.And other companies would make similar products to compete. Instead of one World Wide Web there would be several smaller Webs. Each would use incompatible (不相容的) software. They Web is valuable because it uses a common computer language to reach people and share information. Competing webs would lose this value.Imagine if somebody sent you a bill every time you spoke a world of English.
　　In 1994 Tim Berners-Lee formed the World Wide Web Consortium,or W3C.More than 200 leading companies and laboratories are represented by W3C. Together they make sure that everyone, no matter what their equipment or solftware,can work equally on the Web.
　　"The Web can help people to understand the way that others live and love. It helps us understand the humanity of people," he says.
　　68.The writer's purpose in writing the first two paragraphs is to ______.
　　　A.give us some idea of the Internet
　　　B.give us some idea of the Web
　　　C.tell us how the idea of Web started
　　　D.tell us the idea of the Web is wonderful
　　69.Tim Berners-Lee invented the World Wide Web in order to _____
　　　A.place his programmers on the Internet
　　　B.stop smaller webs appearing
　　　C.help people to form a web site
　　　D.let people share all kinds of information
　　70.According to the text,the disadvantage of competing webs is that they would ______.
　　　A.slow the development of the Web
　　　B.destroy the whole web system
　　　C.lose the value of information
　　　D.waste a lot of money