题目
题型:不详难度:来源:
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 ________.
A.at elbow height | B.at eye height |
C.on a desk | D.on a table |
A.for a short time | B.to play video games |
C.for hours without stopping | D.to buy things on the Internet |
A.are not so popular as the desktops |
B.are more popular than the desktops |
C.are not bad for our body |
D.have no mouse now |
A.people’s sight lower | B.people have cancer |
C.people’s arm longer | D.people feel pain in the body |
A.When you use a laptop, you should put your monitor at eye height. |
B.Laptop computers sold more than desktops this autumn. |
C.To keep healthy, you should use laptop computers. |
D.Business travelers often use the laptop computers for a long time. |
答案
小题1:A
小题2:C
小题3:B
小题4:D
小题5:C
解析
试题分析:
小题1:细节理解题,根据文中语句“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.”理解可知。用电脑时,键盘和胳膊肘应该是一般高,故选A。
小题2:细节理解题,根据文中语句“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.”理解可知。用手提电脑短时间是可以的,但长时间会对人体有害,故选C。
小题3:细节理解题,根据文中语句“Ergonomics experts have warned about laptop problems for years. But people still like laptops better than the desktops.”理解可知。手提电脑比台式电脑流行的多,故选B。
小题4:细节理解题,根据文中语句““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.””理解可知。错误的姿势可能给身体带来伤害。
小题5:理解归纳题,根据文中语句理解可知。常用手提电脑对身体非常有害,故选C。
点评:此题的难点就是对文章的整体理解。本文的生词比较多,给理解造成了很大的障碍。把握本文的关键要理解;laptop和desktop的含义。
核心考点
试题【Sales of laptop computers passed desktops in the U.S. for the first time ever th】;主要考察你对科普环保类等知识点的理解。[详细]
举一反三
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.
小题1:Americans like getting news from ________ best today.
A.TV news |
B.the Internet |
C.newspapers |
D.radios |
A.7 |
B.17 |
C.24 |
D.51 |
① TV news ② the Internet ③ the afternoon newspapers
A.①>②>③ |
B.②>①>③ |
C.③>①>② |
D.③>②>① |
A.October, 2010 |
B.December, 2010 |
C.February, 2011 |
D.March, 2011 |
A.the reporters |
B.the readers |
C.the newspaper sellers |
D.the software developers |
Do you like drinking Coke? As a symbol of American culture, Coca-Cola is liked by many people, especially young people all around the world. But from now on, perhaps it will be hard for students in the US to get it on campus. A new agreement will end almost all sales of high-sugar fizzy drinks in US schools. The agreement allows only unsweetened juice, low-fat milk and water in primary and middle school vending machines(自动售货机)and cafeterias. Former American president Bill Clinton helped the American Heart Association and the beverage industry(饮料业) to come up with the agreement. He suffered from a weight problem and has had a heart operation since leaving the White House. He takes the agreement as “a bold step forward in the struggle to help 35 million young people lead healthier lives”.
Rising childhood obesity(肥胖)has become a big problem in America. A federal report noted that obesity has tripled among teenagers in the past 25 years. It called for new limits on the marketing of junk food to children. Soda is a particular target because of its caloric content and popularity among children.
Britain has already taken similar steps to fight obesity. A recent study shows that people in the UK are much healthier than the people in the US. However, it’s better late than never. Now American schools are trying to make new rules to guide the students to choose healthy drinks. American schools say goodbye to Coca-Cola.
小题1:What kind of beverage is NOT allowed to sell on campus?
A.High-sugar fizzy drinks. | B.Unsweetened juice. |
C.Low-fat milk. | D.Water. |
A.Became as much. | B.Became twice as much. |
C.Became three times as much. | D.Became four times as much. |
A.Positive. | B.Neutral. | C.Negative. | D.Unclear. |
A.Coca-Cola causes students’ obesity. |
B.Coca-Cola makes people unhealthier. |
C.Coca-Cola isn’t very popular in the world. |
D.Coca-Cola is bad for our body. |
A.Say “Goodbye” to Coca-Cola |
B.The Junk Coca-Cola |
C.Coca-Cola in China |
D.Coca-Cola in the World |
Have you ever stayed in a hotel ? Most Chinese hotels often provide guests with things like disposable(一次性的) toothbrushes , toothpaste , shampoo, and slippers. Many guests like the idea because they don’t have to bring their own . But , if you travel to Beijing , remember to bring your own things. Starting from now on , some hotels in Beijing will no longer provide guests with these disposables. They want to ask people to use less disposable things.
Many disposable things are made of plastic. People throw them away after only using them once. It is a waste of natural resources and is very bad for the environment . Do you know , one Chinese person makes as much as 400Kg of waste a year! Most of that waste comes from disposable things. In Beijing , people throw away about 19,000 tons of plastic bags and 1,320 tons of plastic lunch bowls every year! Plastic can take between 100 and 400 years to break down. So the less plastic we throw out, the better. So, wherever you travel , bring your own things and use them again and again .
Back at home and school, you can also do something to make our world a better place .Try to do these things in your daily life: Use cloth shopping bags , not plastic ones. After using a plastic bag , wash it out and let it dry. Then you can use it over and over again. Do not use paper cups. At your school canteen(食堂), use your own bowl and chopsticks instead of disposable ones.
小题1:Why do many hotels provide guests with some disposable things ?
A.Let their guests be convenient during their travelling . |
B.Hope their guests use less disposable things. |
C.Wish their guests to save money. |
D.Want their guests to use more disposable things . |
A.cheap food and drink | B.disposable things | C.good service | D.free TV programs |
A.Many disposable things are made of plastic. |
B.Throwing disposable things away is a waste of natural resources . |
C.Plastic is very bad for the environment . |
D.Plastic can be broken down easily. |
A.Use shopping bags made of plastic |
B.Use disposable plates , bowls and chopsticks . |
C.Do not throw away paper cups. |
D.Do not forget to reuse daily necessities (必需品). |
A.people don"t like disposable things at all. |
B.we can"t use paper or plastic bowls at school |
C.We should use less plastic things and protect our environment |
D.hotels won’t provide disposable things because they want to save money |
Doctor Seuss was born in 1904. By the middle 1950s, he had become one of the best-loved and most successful children"s book writers in the world. His books are very popular with young readers. They enjoy the invented words and the pictures of unusual funny animals and plants.
In 1954, life magazine published a report about school children who could not read well. The report said many children"s books were not interesting. Doctor Seuss strongly hoped to help children and decided to write books that were interesting and easy to read. He used words with the same ending sound, like fish and wish. He did not receive training in art. Yet, he drew the pictures for most of his books.
In 1957, Dr. Seuss wrote The Cat in the Hat. He used less than 230 words to write the book and even a six-year-old should be able to read it. It was a fun story and easy to read. Children loved it. Their parents loved it, too. Today it is still one of the stories they like best. The success of The Cat in the Hat made him want to write more books for children. In 1960, he wrote a book using less than fifty words. The book is called Green Eggs and Ham.
In 1984, Doctor Seuss won a Pulitzer Prize. He was honored for the education and enjoyment his books provided American children and their parents.
He died at the age of 87, but his influence remains. Millions of his books have been sold worldwide. People say his books helped change the way American children learned to read. Yet, his books are loved by people of all ages. Doctor Seuss once said, "I do not write for children. I write for people.
小题1:Doctor Seuss learned from the magazine that _______.
A.some school children could not read well |
B.many children"s books were interesting |
C.children wanted to learn to write |
D.a writer for children was wanted |
A.are cheap and easy to get |
B.were written in different languages |
C.are easy and interesting to read |
D.were written with invented words |
A.50 | B.53 | C.56 | D.87 |
A.Doctor Seuss wrote Green Eggs and Ham with over 230 words. |
B.Doctor Seuss wrote books only for children in the United States. |
C.The Cat in the Hat was written only for six-year-old children. |
D.His books provided education and enjoyment for Americans. |
A.won a Pulitzer Prize soon after his death |
B.sold millions of his books himself worldwide |
C.changed American children"s way of reading |
D.wrote the largest number of books in the world |
Have you ever wondered?
1. Why do airplanes take longer to fly west than east?
It can take five hours to go west-east from New York (NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon (大气现象) known as the jet stream (气流). The jet stream is a very high altitude (=" above" sea level) wind which always blows from the west to the east across the Atlantic. So the planes moving at a constant air speed go faster from the west to the east when they are moving with the wind than in the opposite.
2. What would happen if the gravity on Earth was suddenly turned off?
Supposing we could magically turn off gravity. Would buildings and other structures(建筑物)float away? What happened would depend on (依靠) how strongly the things were attached (吸附) to the earth. The earth is moving at quite a speed, moving at over a thousand miles per hour. If you turn something around your head on a string, it goes around in a circle until you let go of the string. Then it flies off in a straight line. ‘Turning off’ gravity would be like letting go of the string. Things not attached to the earth would fly off in a straight line. People in buildings would suddenly shoot upwards at a great speed until they hit the ceiling (=" top" surface of a room). Most things outside would fly off into space.
小题1:What information can we get from the first passage?
A.It is the jet stream that affects how fast airplanes fly. |
B.Planes go slower when they are moving with the wind. |
C.It takes more time to fly from NY to London than from London to NY. |
D.The jet stream always blows from the east to the west across the Atlantic. |
A.send for | B.move quickly | C.come out | D.grow quickly |
A.buildings and other structures would float away |
B.trees and buildings would not so easily fly off |
C.something around your head would not float away |
D.everything outside buildings would fly off into space |
A.In a research paper. | B.In a short story. |
C.In a travel magazine. | D.In a student’s book |
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