【英语】八年级英语上册阅读理解练习题

【英语】八年级英语上册阅读理解练习题

一、八年级英语上册阅读理解专项练习（含答案解析）

1．阅读理解

When a computer runs a group of programs, it can get very Cooling the computer can cost a lot. So some scientist's wonder what will happen if the heat from the computer can 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 Loupe, the head of the company, says the 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. So 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 Visor is one of the homeowners. "If you use the computer more the e-radiator produces 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 can produce heat at a temperature of 55℃. It says the system can save its users about S 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 underlined word "device" in this passage is probably " ".

A. 节能

B. 实验

C. 仪器

D. 开关

（4）The best title for the passage may be "_______".

A. An environment problem

B. A new way to heat homes

C. The computers in the future

D. The energy to be wasted

【答案】（1）A

（2）D

（3）C

（4）B

【解析】【分析】主要讲了荷兰的一家公司发明了电子散热器，热量既可以加热房屋也可以冷却电脑。

（1）细节题。根据These systems send the heat into the air.可知是热量送到了空中，故选A。

（2）细节题。根据the e-radiator works as a heating system and saves money.可知电子散热器作为加热系统节约钱，故选D。

（3）推断题。根据the e-radiator works as a heating system，可知电子散热器是一种系统，即仪器，故选C。

（4）主旨题。根据全文可知主要讲了荷兰的一家公司发明了电子散热器，热量既可以加热房屋也可以冷却电脑。故选B。

【点评】考查阅读理解。本文涉及细节题、推断题和主旨题三种常考题型，细节题要注意从文中寻找答案；推断题需要联系上下文，推断出需要的信息；主旨题需要通读全文，了解大意之后找出中心思想。

2．阅读理解

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