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2013年职称英语理工类的c级阅读理解练习题3

发布时间：2016-03-01 编辑：查字典英语网小编

　　Rockets in the Sky

　　If someone asked you, What color is the sky? I expect that you would answer, Blue. I am afraid that you would be wrong. The sky has no color. When we see blue, we are looking at blue sunlight. The sunlight is shining on little bits of dust in the air.

　　What is the sky? The sky is space. In this space there is nothing except the sun, the moon and all the stars.

　　The moon is about 384,000 kilometers away from the earth. An airplane cannot fly to the moon but there is a thing that can fly even when there is no air. This is rocket.

　　This is how a rocket works. It is not made of rubber like a balloon, of course. It is made of metal. The metal must not be heavy but it must be very strong. There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket, the rocket is pushed up into the air.

　　练习：

　　A) It is blue.

　　C) It is grey.

　　2. When an airplane flies too high,

　　B) the air will become thicker.

　　D) the air will disappear in no time.

　　A) it looks like a balloon.

　　C) it doesnt have wings.

　　4. Which of the following statements about a rocket is NOT true?

　　B) It can fly without wings.

　　D) It is propelled by burning gas inside it.

　　A) hot gas rushes out of its head.

　　C) hot gas rushes out of its bottom.

　　Keys: DADDC

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