精英家教网 > 初中英语 > 题目详情

When a computer works on a group of programs, it can get very hot. Cooling the computer can cost a lot. So some scientists wonder what would happen if the heat from the computer could be used.

Large Internet companies (公司) such as Google and Microsoft have thousands of computers. As these computers deal with information, they produce lots of heat, so they need huge cooling systems (系统). These systems send the heat into the air.

A company in Holland (荷兰) thinks paying to make the computers work and then paying again to cool them are a waste of energy. So the company developed a special device—the e-Radiator.

Boaz Leupe, head of the company, says that e-Radiator works as a heating system and saves money. He explains that the energy is used twice—once to heat the home and once to cool the computer and that the users don’t have to pay to cool their computers.

Five homeowners in Holland are testing the heating system in their homes.

“We pay for the computer using, so, in that way, homeowners get heating for free,” Boaz says.

Jan Visser is one of the homeowners. “If you use the computer more, the e-Radiator producers more heat, ”he says, “It cannot provide enough heat if you don’t use your computer often.” But he is ready to try it. It’s a great help for his family.

The company says e-Radiators produce heat temperatures of up to 55℃. It says the system could save its users about $440 a year.

1.Before the e-Radiator appears, usually the heat of a computer ______.

A. is sent into the air B. helps the five homeowners

C. is used twice D. makes the computer work better

2.The e-radiator is mainly used _____.

A. to drive the computer B. to help Microsoft

C. to heat the computer D. to provide heat

3. The Chinese meaning of the word “device” in this passage is probably “____”.

A.节能 B. 实验 C. 仪器 D. 开关

4.The best title of the passage may be “_____”.

A. An Environment Problem

B. A New Way to Heat Homes

C. The Future Computers

D. The Energy to Be Wasted

练习册系列答案
相关习题

科目:初中英语 来源:2014-2015学年四川省江县八年级下学期期九校联考英语试卷(解析版) 题型:单项填空

I’d like to help sick people in the hospital.

A. cheer up them B.cheer them up

C.cheer him up D.cheer up him

查看答案和解析>>

科目:初中英语 来源:2014-2015学年江苏盐城市八年级上期末英语试卷(解析版) 题型:单项填空

The sentence structure of ‘A baby panda is drinking her mother’s milk.’ is .

A.S+V+IO+DO B. S+V+P C. S+V+DO+OC D.S+V+O

查看答案和解析>>

科目:初中英语 来源:2014-2015学年湖北黄冈市罗田县八年级上期中英语试卷(解析版) 题型:单项填空

— Do you know the famous singer, Adele?

— Yes. Her songs are fantastic. I hope I can sing as ___ as her one day.

A. beautifully B. badly

C. carefully D. Loudly

查看答案和解析>>

科目:初中英语 来源:2014-2015学年湖北黄冈市罗田县八年级上期中英语试卷(解析版) 题型:单项填空

— Oh, it is raining outside!

—Don’t worry. I have _____ umbrella.

A. a B. an C. the D. /

查看答案和解析>>

科目:初中英语 来源:2015年初中毕业升学考试(重庆A卷)英语(解析版) 题型:单项填空

–Our basketball team will beat theirs and win the match.

–_____. Your team is the best in our city.

A. I’m afraid not. B. I believe so.

C. Of course not. D. Well done.

查看答案和解析>>

科目:初中英语 来源:2015年初中毕业升学考试(重庆A卷)英语(解析版) 题型:单项填空

Helen loves reading. She has read _____ books this month.

A. five B. fifth C. five of D. fifth of

查看答案和解析>>

科目:初中英语 来源:2015年初中毕业升学考试(浙江台州卷)英语(解析版) 题型:阅读理解

Kudzu is a fast-growing vine(蔓生植物) that covers a large area in the southern United States. It is so common that one might think it is a native plant, but it is not. Kudzu was brought to the United States from Japan in 1876. Many Americans thought it was beautiful, and they began to plant it. They didn’t know it could grow up to a foot a day during the summer months. Nor did they know it would grow up and over anything in its path(路径).

In Japan, kudzu experienced cold winters and a short growing season. But in the United States, it has a very long growing season with warm and wet southern weather. It is fine weather for the vine to grow fast.

In the 1920s, people used the vine to feed farm animals. Ten years later, the government supported to plant kudzu because it kept soil(土壤) from washing away. However, by the 1950s, the government no longer wanted people to plant the vine. Twenty years after that, the government said it was a harmful plant.

The vine grows up trees and buildings, making some beautiful shapes. However, trees die after kudzu covers them because they can not get enough light. Scientists are looking for ways to kill the vine. They used poisons(毒药) to kill the vine. However, some of the poisons made it grow even better. Scientists also find it difficult to dig up Kudzu. The plant is really tough.

Because kudzu is so hard to kill, some people are making the best of it. So they try to find different uses for the vine. They find the vine can be used to make paper and baskets, it can be used to feed the goats, and it can even be eaten by people. Scientists are studying it in the hope that the vine can be used as a medicine. At the very least, kudzu serves as an example of the unexpected results that can come from non-native plants.

1. We can learn from the passage that .

A. kudzu mostly grows in the northern America

B. kudzu was brought to Japan from America

C. kudzu grows very fast in warm and wet weather

D. American government has never supported to plant kudzu

2.The underlined word “tough” in Paragraph 4 probably means “ ”.

A. not easily broken B. widely used

C. hard to grow D. important to one’s health

3.The last paragraph is mostly about .

A. how quickly the vine grows

B. how people use the vine

C. why people want to kill the vine

D. why people eat the vine

4. The writer uses the title “The Vine That Ate the South” most probably to .

A. let readers know kudzu is a vine

B. interest readers in a way

C. tell readers the vine is a kind of food

D. get readers to realize the passage is serious

查看答案和解析>>

科目:初中英语 来源:2015年初中毕业升学考试(上海卷)英语(解析版) 题型:单项填空

I love this picture ______ you beside the music fountain.

A. in B.of C. on D. at

查看答案和解析>>

同步练习册答案