阅读理解阅读下列短文，从每小题所给从每题所给的A、B、C、D四个选项中选出最佳选项。FuelforTomorr...

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阅读理解

阅读下列短文，从每小题所给从每题所给的A、B、C、D四个选项中选出最佳选项。

Fuel for Tomorrow

Can cars run without gasoline(汽油)？

A fuel(燃料) is a substance(物质) that can be burned to make energy. Today, gasoline is used as a fuel for cars and planes. Tomorrow, we may use different fuels.

One idea is to use old fuels in new ways. Methane(**)，also called natural gas, is an old fuel. It is used in our stoves to cook our food. It is also used to make hot water and to heat our homes. Methane is not as heavy as gasoline, and it is safer. It does not explode(*) easily. Also, when methane burns, very little is left. The air stays clean.

There are problems, however. Methane gas takes up a lot of space, Cars and airplanes would need bigger fuel tanks(大容器). But scientists think they can solve the space problem. They hope that safe, clean methane will be a fuel for our cars of tomorrow.

1. The word fuel is used for anything that       .

  A. can be burned to make energy   

B. is put into a tank   

C. is expensive to bum

2. According to the story, methane is       than gasoline.

  A. dirtier    B. safer    C. heavier

3. According to the passage, one of the problems with using methane for fuel is that the gas       .

  A. takes up a lot of space    B. is hard to find    C. does not burn very easily

4. In the passage, methane is called an old fuel because it has been      .

  A. used often before   

B. used in cars for many years   

C. stored for a long time

5. Suppose your car uses methane gas. Which one of the following statements is the best reason for getting a larger fuel tank?

  A. You would not have to refuel so often.

  B. The extra methane would help make the car heavier.

  C. You should burn less methane.

【回答】

1A 2B 3A 4C 5A

知识点：日常生活类

题型：阅读理解