There is no water ______ air on the moon.

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　　A. or   B. and   C. but   D. also

　　The sounds we hear on the earth are carried by the air. Since there is no air on the moon, people who get to the moon must talk to each other by radio. The dust（灰尘）in the earth's air, though very little, scatters（散射）he sunlight. This makes the earth's daytime sky blue and the shadows（阴影）are not completely dark. But on the moon, the sky is always black. You would be able to see stars in the daytime. Sunny places on the moon would be very, very bright. But the shadows would be almost black. The moon has no air or wind to carry the sun's heat. So it can get hot enough to boil（煮开）water in the places where the sun is shining straight down.

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A．the air around is a blue gas

B．there is dust on the earth

C．of the fact that the sunlight is blue

D．there is air around and the dust in the air scatters the sunlight

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A．The shadows on the moon would be nearly black.

B．All the sunny places of the moon can become so hot as to boil water.

C．The moon has no air and no wind.

D．Even in the daytimes stars could be seen on the moon.

The moon looks bigger than the stars at night. But in fact, it is smaller than any of them. The moon looks big to us, because it is closer to us than any star. The moon goes around the earth. It makes one trip（旅行）about four weeks. The moon is a round ball and looks beautiful. Don’t you think so? Now people know quite a lot about the moon. There is no air or water on the moon so there are not any trees or animals, or people on the moon. The moon gets its light from the sun, but some places on the moon are quite dark. The days on the moon get hotter than boiling（煮开的）water. The nights get colder than the North Pole（北极）on the earth.

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　　　　Do you know something about the moon? You can see it at night.Sometimes it looks round and bright. It also looks quite near. But 　　it's far away from the earth. If you take a spaceship（宇宙飞船）,you will get there in more than three days. The spaceship flies at 　　11 kilometres（公里）a second. In 1969 two Americans landed on（登上）the moon by spaceship.

　　　　There are no living things on the moon because there is no air or water there. You can jump much higher there than on the earth.Some day we Chinese will get to the moon, too.

根据短文内容，选择最恰当的答案。

　　1. The moon looks ______.　　　　　　　　　　

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　　A. near　　B. far　　C. dark　　D. small

　　2. How long will it take you to fly to the moon by spaceship?

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　　A. Five days.　　　　　B. Six days.

　　C. Over three days.　　D. About two days.

　　3. A: How fast can a spaceship fly?　　　　

　　 B: It can fly ______ kilometres in a second.

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　　A. eleven　　B. fifteen　　C. nine　　D. five

　　4. Two ______ astronauts（宇航员）landed on the moon in 1969.

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　　A. French　　B. American　　C. Germany　　D. British

　　5. People can't live on the moon now because there is no ______there.

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　　A. food or drinks　　　　　B. living things

　　C. people or houses　　　　D. air or water