Sales of laptop computers passed desktops in the U.S. for the first time ever this fall, according to market-research firm IDC. That's bad news for backs, necks and shoulders.
Laptops are bad for our body. When you work at a computer, the keyboard should be at elbow height and the monitor should be roughly at eye level, so you can sit well in a chair. But most users simply set their laptops on a desk or table. The keyboard is too high, which makes your arms reach up, your shoulders feel tired and your wrists bend down. The monitor is too low, which pulls your head and neck forward and down and your back may feel hurt.
That's OK if you use your laptop for a short time. But if you use one for hours without stopping – as do millions of college students, business travelers, telecommuters, video-gamers and growing numbers of office workers – your body may feel hurt. Ergonomics experts have warned about laptop problems for years. But people still like laptops better than the desktops. And they use laptops anywhere – in bed, on the floor – in all kinds of positions.
“How can a mouse or a keyboard hurt you?” says Thomas Caffrey, the founder of Myofactors LLC, “Wrong positions can be bad for your body. As time goes by, a wrong position can lead to pain in the neck, shoulders, back and arms, as well as headaches.”
【小题1】When you work at a computer, the keyboard should be ________.

Are you interested in country music? I like it very much !It will take me away for a while after I am tired . The guitars and songs will take me to mountains and fields. Country music usually talks of everyday life and feelings. It’s the spirit（精神） of America ,easy to understand ,slow and simple.

Country music developed in the Southern United States. It was the folk music of American countryside. Many of songs tell about the lives of famers . They talk about love, crops（庄家） or death.

The life of the countryside can be hard, so the words in country music are often sad. At first, people played the music only at family parties. But it became more popular later. In the 1920s,people played country songs on the radio, and they made them into records.

When people in the countryside moved to towns and cities to look for work, they took their music with them. Country music continued to change and became popular across America.

John Denver was one of America’s most famous country singers in the 1970s. His song “Take Me Home, Country Roads” is well-known and people still play it today.

根据短文内容,选择正确答案，并将其字母代号填入答题卷相应空格内。 (共

小题，每小题2分，满分10分)

1.Country music is usually about _______.

A. students’ feelings B. farmers’s feelings

C. the lives of workers D. crops

2.Country music developed ________.

A. in John Denver’s city B. in the Southern United States

C. in the Northern United States D. the United States

3.People bagan to make country song records _______.

A. in the 1920s B. in 1920 C. in the 1970s D. in 1970s

4.Why did Country music become popular in America?

A. Because city people liked the music.

B. Because people in the city moved to the countryside.

C. Because country music talked about city people’s lives.

D. Because farmers moved to cities with their music and it continued to change.

5.Who is famous for the song “Take Me Home,Country Roads”?

A. A farmer in the countryside. B. A person who moved to towns

C. John Denver. D. Denver John.

In the past twenty years, riding bicycles has become more and more popular among people of all ages. (83) Bicycles have long played an important part in the lives of American young people. But today an even greater number of adults cycle along roadsides and bicycle paths. These new riders are often trying to become fit or lose weight. They have found that bicycling is a pleasant way to stay healthy.
This is certainly good for health. But it has also brought some problems. With all these added people on the road, bicycle safety has become a matter of real importance.
Bicycle safety is mostly a matter of common sense. People should ride only on bicycle paths where they will not be badly hurt. There are also a number of rules that riders should follow, especially when riding on streets or highways. Bicyclists should never ride against the traffic, nor should they carry other people on their bicycles. They are also supposed to ride in single line on busy streets and to walk bicycles across the busy intersections (交叉路口) . (84)By following these rules, bicycle riders will not only stay healthy but also be safe.
In one recent year, the National Safety Council reported that 34 thousand bicycle riders were hurt in highway accidents. In that same year, another six hundred riders were killed. Since the introduction of crash helmets (头盔) in 1980, the number of injuries (伤者) and deaths from bicycling accidents had gone down. Today, more and more riders realize the dangers of bicycling. They are wearing helmets and paying closer attention to cycling rules.
根据短文内容回答下列问题。
【小题1】How many rules should the riders follow? Give one example.
                                                                             
【小题2】According to the National Safety Council’s report, what’s the total number of injuries and deaths in one recent year?
                                                                             
B. 将短文中划线部分译成汉语。
【小题3】                                                                          
【小题4】                                                                       
C. 请给短文拟一个适当的英文标题。
【小题5】