Question

What is the sky?①This question is very difficult to answer.The sky is a space where there is nothing except the sun,the earth,the moon and all the stars.

Scientists can look at them through telescopes(望遠(yuǎn)鏡) and,in this way,they can find out a great deal (許多,大量).They know many facts about the moon.For example,they know how big and how far away it is.②The moon is about 384,000 kilometers away from the earth.A plane cannot fly to the moon because there is no air.But a rocket can.

“How can a rocket fly?” If you want to know,get a balloon and then blow it up,until it is quite big.Do not tie up the neck of the balloon.Let it go!The balloon will fly off through the air very quickly.The air inside the balloon tries to get out through the neck of it,which pushes(推動(dòng))the balloon through the air.It does not need wings(翅膀)like a plane.③.Of course,the rocket is made of(由……制成) metal(金屬).The metal must not be heavy but it must be very strong.There is a gas(氣體) inside the rocket which is made very hot.When it rushes out of the rocket,the rocket is pushed up into the air.

1.將畫(huà)線部分①改為同義句:

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2.將畫(huà)線部分②譯成漢語(yǔ):

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3.從下面三個(gè)句子中選出一個(gè),將其放回到畫(huà)線部分③,使其上下文通順合理。

A. This is what a rocket looks like

B. This is how a rocket works

C. This is why a rocket looks like a plane

4.請(qǐng)根據(jù)短文,判斷正(T)誤(F)。

In space there is only the sun,the earth and the moon.

5.請(qǐng)根據(jù)短文,判斷正(T)誤(F)。

The rocket can fly to the moon because it carries a gas inside it to push itself.

1.It is very difficult to answer this question. 2.月球離地球大約384,000千米遠(yuǎn)。 3.B 4.F 5.T 【解析】短文大意：天空是一個(gè)除了太陽(yáng)、地球、月亮和所有星星之外什么都沒(méi)有的空間。科學(xué)家可以通過(guò)望遠(yuǎn)鏡觀察它們，這樣他們就能發(fā)現(xiàn)大量的東西。飛機(jī)不能飛到月球，因?yàn)闆](méi)有空氣；但是火箭可以，有其運(yùn)行原理。 1...

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