【題目】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 cant fly to the moon because _____________.

A. its 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

【答案】

【1】B

【2】A

【3】B

【4】C

【5】D

【解析】

【文章大意】科學家們正想方設法來探索宇宙。現(xiàn)在人們對月球有了更多的了解,人類也實現(xiàn)了登月,無人探測器已經到過月球之外的其它行星。有一天火箭可能會造訪宇宙的任何地方。

【1】詞意猜測題。結合下文中的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,故選B。

【2】細節(jié)理解題。根據(jù)短文第三段中的The moon is about three hundred and eighty-four thousand kilometers away from the earth.可知,月球距離地球384, 000公里,故選A。

【3】細節(jié)理解題。根據(jù)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,飛機的飛行離不開空氣,故選B。

【4】細節(jié)理解題。根據(jù)短文倒數(shù)第二段的內容可知,燃氣燃燒,形成高速射流排出而產生推力,幫助火箭升空,故選C。

【5】細節(jié)理解題。根據(jù)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.無人探測器已經到過其的行星,故選D。

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