Question

【题目】B

Scientists have always wanted to know more about the other worlds in space.

Years ago, they knew many facts about the moon. They knew how big it was and how far away it was from the earth. But they wanted to know more about it. They thought and thought. At last they found the only way to know more was to send men to the moon.

The moon is about three hundred and eighty-four thousand kilometers away from the earth. A plane cannot fly to the moon because the air reaches only 240 kilometers. Then there is no air. But something can fly even when there is no air. That is a rocket.

How does a rocket fly? There is gas in the rocket. When the gas is made very hot inside the rocket, it will rush out of the end of the rocket, so it can make the rocket fly up into the sky.

Rockets can fly far out into space. Rockets with men in them have already reached the moon. Some rockets without men in them have flown to other planets much farther away than the moon. One day rockets may be able to go to any place.

【1】 What does the underlined word ＂worlds＂ refer to?

A. moon B. planets C. fields D. sky

【2】The moon is about _____________kilometers away from the earth.

A. 384, 000 B. 38, 400 C. 3, 840 D. 348

【3】A plane can’t fly to the moon because _____________.

A. it’s too far away B.it cant fly without air

C. there is no water on the moon D.it is too small

【4】The hot gas in the rocket is used for _____________.

A. cooking food for the astronauts B. keeping the man in the rocket warm

C. making the rocket fly up D. keeping the air in the rocket fresh

【5】 Rockets without men in them have reached _____________.

A. another star B. the sun

C. the moon D. other planets of the sun

Answer 1

【答案】

【1】B

【2】A

【3】B

【4】C

【5】D

【解析】

【文章大意】科学家们正想方设法来探索宇宙。现在人们对月球有了更多的了解，人类也实现了登月，无人探测器已经到过月球之外的其它行星。有一天火箭可能会造访宇宙的任何地方。

【1】词意猜测题。结合下文中的＂Some rockets without men in them have flown to other planets much farther away than the moon.＂可知，worlds是指太空中的其它行星，故选B。

【2】细节理解题。根据短文第三段中的＂The moon is about three hundred and eighty-four thousand kilometers away from the earth.＂可知，月球距离地球384, 000公里，故选A。

【3】细节理解题。根据短文第三段中的＂A plane cannot fly to the moon because the air reaches only 240 kilometers. Then there is no air.＂可知，飞机的飞行离不开空气，故选B。

【4】细节理解题。根据短文倒数第二段的内容可知，燃气燃烧，形成高速射流排出而产生推力，帮助火箭升空，故选C。

【5】细节理解题。根据短文最后一段中的＂Some rockets without men in them have flown to other planets much farther away than the moon.＂无人探测器已经到过其他的行星，故选D。