题目列表(包括答案和解析)
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 ________.
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A.at elbow height |
B.at eye height |
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C.on a desk |
D.on a table |
2.The writer asks us not to use the laptop ________.
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A.for a short time |
B.to play video games |
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C.for hours without stopping |
D.to buy things on the Internet |
3.From the passage, we know that laptop computers ________.
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A.are not so popular as the desktops |
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B.are more popular than the desktops |
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C.are not bad for our body |
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D.have no mouse now |
4.Using a laptop in a wrong position may make ________.
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A.people’s sight lower |
B.people have cancer |
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C.people’s arm longer |
D.people feel pain in the body |
5.According to the passage, which of the following is NOT true?
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A.When you use a laptop, you should put your monitor at eye height. |
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B.Laptop computers sold more than desktops this autumn. |
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C.To keep healthy, you should use laptop computers. |
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D.Business travelers often use the laptop computers for a long time. |
-Will there be school in the future?
-______. I think that students will study at home on the Internet.
A. Yes, there will. B. No, there won’t.
C. No, there isn’t.
After class, I like playing computer games and chatting _______ my friends _______ the Internet.
A.to; by B.with; on C.for; in D.about; through
The rapid growth of Smartphones and electronic tablets(平板电脑)is making the Internet favourite for Americans reading news, a report said.
News consumption online increased 17% last year from the year before. Television news, newspapers, radio and magazines all lost audience last year. For the first time, the number of people who get news online at least three times a week is larger than the number of people who get news from the newspapers. TV news has been the most popular since the 1960s. It has replaced the afternoon newspapers. But now the online news seems to be more popular than the TV news.
People are used to having the Internet available on phones or small tablets. In December, 2010, 41% of Americans said they got most of their news on the Internet, more than double the 17% who said that a year earlier, the report said. In January, 2011, 7% of Americans owned electronic tablets, nearly double what it was three months earlier. It was the fastest-growing new digital technology, ahead of mobile phones when they were introduced. The online ad income was expected to surpass(超过)print newspaper ad income for the first time in 2010.
The news business used to be the intermediary(中介). You needed newspapers and TV stations to reach your customers. In this age of the computer, it’s the software developers that you need.
1.Americans like getting news from ________ best today.
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A.TV news |
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B.the Internet |
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C.newspapers |
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D.radios |
2.About ________ % of Americans got most of their news on the Internet in 2009.
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A.7 |
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B.17 |
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C.24 |
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D.51 |
3.Which of the following media has more readers?
① TV news ② the Internet ③ the afternoon newspapers
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A.①>②>③ |
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B.②>①>③ |
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C.③>①>② |
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D.③>②>① |
4.About 3.5% of Americans had electronic tablets in ________.
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A.October, 2010 |
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B.December, 2010 |
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C.February, 2011 |
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D.March, 2011 |
5.The news business depends on ________ today.
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A.the reporters |
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B.the readers |
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C.the newspaper sellers |
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D.the software developers |
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These days, a lot of photos about how a three-year-old girl looked after her disabled father are 31 spread over the Internet. Many people were 32 by her. And people gave her a 33 nickname (绰号) “little strong girl”.
The little girl is Dong Xinyi. She was born in a small 34 in Dezhou, Shangdong Province. When she was several months 35 , her father Dong Jianshe had an accident 36 riding his motorcycle and lost his 37 . Two years later her mother left her father 38 the poor life. As an old saying goes, “ The children of 39 people manage household affairs early.” Little Xinyi had to do lots of housework. She 40 her father in her power. She cooked noodles, carried water, cleaned rooms and washed clothes. The little girl brings happiness and 41 to her poor family. And 42 , the local government has 43 medical treatment to her father and promised to cover all medical expenses(费用). 44 the same time, the government is also planning to raise money for the girl’s 45 . Now Dong Xinyi has got a chance to go to nursery school(幼儿园) like other children,
1.A.happily B. certainly C. carefully D. widely
2.A.moved B. married C. made D. named
3.A. bad B. wrong C. bright D.stupid
4.A. city B. village C. hospital D. capital
5.A. young B. little C. old D. big
6.A. where B. while C. whether D. how
7.A. legs B. son C. daughter D. wife
8.A. because B. instead of C. instead D. because of
9.A. rich B. great C. poor D. disabled
10.A. took care B. took care of C. looked around D. looked for
11.A.sadness B. success C. freedom D. hope
12.A.luckily B. unluckily C. likely D. really
13.A. refused B. noticed C. offered D. bought
14.A.On B. At C. In D. To
15.A. information B. interest C. suggestion D. education
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