1 . The human body is designed to move. But modern lifestyles and office jobs rarely give us the chance to move around. As we know, we sit while we’re eating, we sit in the car and we sit while we're watching TV. And many of us sit for many hours at work.
New research shows that sitting less than three hours a day might extend your life by two years. Peter Katzmarzyk, a scientist at the University of Louisiana in the southern United States, says that sitting is ubiquitous in our lives, meaning it is something we do all the time, everywhere.
However, Mr.Katzmarzyk says even that does not mean you can sit for the rest of your waking hours. He also says you may exercise often. “We can’t throw away physical activity. It’s extremely important. We have 60 years of research showing us that.”
Mr.Katzmarzyk and his colleagues are part of a new generation of researchers studying how sitting all day affects length of life. “Studies that have assessed the relationship between sitting and mortality (死亡率)or television viewing and mortality are very rare. There have only been a few of them, actually five or six now，in the last four or five years.” They found that cutting television time to less than two hours a day could add one-point four years to life.
Luckily, change is already coming to some offices, especially in the design of desks. A “standing desk” lets people stand while they are working. Another new design is called the “treadmill desk”. A treadmill is an exercise machine that lets you walk in one place. Even some U.S. schools are beginning to experiment with desks that are part bicycle to keep children moving, That’s one of the strategies that many companies are using now.
Mr. Katzmarzyk also says studying this problem has inspired his team to make a few changes in their own lives.
1. The underlined word “ubiquitous” is the closest .| A．危险的 | B．尴尬的 |
| C．舒适的 | D．普遍的 |
| A．Sitting too long may help increase one’s life. |
| B．Exercise is important, but so is not sitting. |
| C．Watching TV is bad, but can broaden one’s horizons. |
| D．Stopping watching TV is a necessary but hard task. |
| A．It’s a relatively new area of study. |
| B．It’s a hot subject studied by experts. |
| C．It’s a study that begins too late. |
| D．It’s ignored by many experts. |
| A．To give them more comfort . |
| B．To improve their work efficiency. |
| C．To offer them the chance to exercise. |
| D．To seek pleasure while working. |
2 . The Internet has become part of teenage life. There’s a report on 3375 students aged from 10 to18 in seven Chinese cities. It says that 38% of them believe they use the Internet often. While most of them get useful information and use the Internet to help in their studies, some are not using it in a good way. Many are playing online games too much. A few even visit Websites they should not look at. Bad things can happen if young people spend too much time on the Internet.
In order to help young people use the Internet in a good way, a textbook on good Internet behavior has started to be used in some Shanghai middle schools this term. It uses real examples to teach students all about good ways of using the Internet. Some students also make online friends. But if you are meeting a friend offline, let your parents know.
Teachers and parents all think the book is a very good idea. It will teach students how to be a good person in the online world. It will be a guide for teens using the Internet and keep students away from bad sites.
1. The underlined word “it” means .| A．the book | B．the report |
| C．the Internet | D．information |
| A．3375. | B．1280. | C．2100 . | D．2800. |
| A．They get useful information to help in their studies |
| B．They play online games. |
| C．They make online friends. |
| D．They buy online sometimes. |
| A．Because it helps with the students’ studies. |
| B．Because it is used in Shanghai middle schools. |
| C．Because it teaches students how to use the Internet in good way. |
| D．Because it’s beneficial for one to learn English. |
