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.”

1.When you work at a computer, the keyboard should be ________.

2.The writer asks us not to use the laptop ________.

3.From the passage, we know that laptop computers ________.

4.Using a laptop in a wrong position may make ________.

5.According to the passage, which of the following is NOT true?

We go to school every day to become a better
person. So how can we become powerful and start
changes in our own life? Perhaps we can get tips from the US
First Lady Michelle Obama. During her 'visit to China, from March 20-26, Mrs. Obama shared her views on education and youth empowerment with students.
The first lady encouraged Chinese students to aim high and get a good education* In Chengdu No. 7 High School, she told students that having humble (贫寒的) roots doesn't matter as long as you have perseverance（毅力）
Mrs. Obama said her family was not rich. Like many Chinese students, her parents had big dreams for her. She felt the weight of her parents' sacrifices（牺牲） on her shoulders and worked hard to make them proud. Persevering was not easy, though. Sometimes she had to wake up at 4:30 am and study late into the night. "But whenever I got tired or discouraged(气馁 WJ)... I would remember something my mother. always told me. She said: 'A good education is something that no one cart take away from you.''
Mrs. Obama also encourages Chinese students to study abroad to broaden their horizons（开阔眼界） in her speech at Peking University. "As the Chinese saying goes: It is better to travel 10,000 miles than to read 10,000 books," she said. It's not enough to get good grades in school. It's also important to have real experience with languages, cultures and societies different from your own, she noted.
Studying overseas could also benefit future international relations. It could help young people from different countries work together to deal with shared problems such as climate change, Mrs. Obama said.

【小题1】From the first paragraph , what kind of views did Mrs. Obama share with the students ?

口语应用，从方框中选择适当的句子，完成下列的对话。（每小题2分，共10分）

Li Lei: Hi, Mike.__________ 1.________________

Mike: Yes, I did.

Li Lei: _____________2.__________________

Mike: Yes. Many buildings fell down. Over 69 000 people died in it.

Li Lei: _______________3.______________________

Mike: And I know another two terrible earthquakes in China.

Li Lei: Really? _____________4.________________________

Mike: I think the Tangshan earthquake in 1976 was the most serious. More than 240 000 people lost their lives.

Li Lei: How terrible! How can we protect ourselves from the earthquake?

Mike:_________________ 5.________________________

A. Let’s ask Miss Chen for help.

B. I’m sorry to hear that.

C. Did you watch the news about Wenchuan earthquake?

D. Was it serious?

E. Which was the most serious?