Scientists are very interested in the Universe，and they always want to know more about it. Years ago they knew many things about the moon. They knew how big it is and how far away it is from the earth. But they wanted to know more about it. They thought the best way was to send men to the moon. The moon is about 384,000 kilometers away from the earth. A plane cannot fly to the moon because the air reaches only 240 kilometers away from the earth. But something can fly even when there is no air. That is a rocket(火箭)
How does a rocket fly? There is gas（氣體） 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 out into space. Rockets with men in them have been to the moon. Several rockets without men in them have flown to another planet(行星) much farther away than the moon. One day, rockets may be able to go to any place in space.
小題1:Scientists knew ____________ the moon is.
A: how far    B: how big    C: how old    D: both A and B
小題2:The earth is about 384,000 kilometers away from the _____.
A: space    B: universe    C: sun   D: moon
小題3:A plane cannot fly to the moon because ___________
A: there is no air above 240 kilometers away from the earth.
B: there is no gas in the plane
C: the plane is not strong enough
D: the plane can not fly a long way
小題4:The hot gas in the rocket is used for___________
A: keeping the air in the rocket fresh(新鮮的)
B: Keeping the men in the rocket warm
C: making the rocket fly up.
D: cooking food for the men
小題5:What is the writer’s attitude(態(tài)度) to the universe’s future.
A: Realistic(現(xiàn)實的)        B: Imaginative(幻想的)
C: Confident(有信心的)      D: Sad

小題1:D
小題1:D
小題1:A
小題1:C
小題1:C

小題1:細節(jié)題：從第一段的句子：They knew how big it is and how far away it is from the earth.可知科學家知道月亮離地球多遠和多大。答案是D
小題1:細節(jié)題：從第一段的句子：The moon is about 384,000 kilometers away from the earth.可知答案是D
小題1:細節(jié)題：從第一段的句子：A plane cannot fly to the moon because the air reaches only 240 kilometers away from the earth.可知答案是A
小題1:細節(jié)題：從第二段的句子：so it can make the rocket fly up into the sky.可知火箭的熱氣是為了讓火箭升空，答案是C
小題1:細節(jié)題：從第二段的句子：One day, rockets may be able to go to any place in space.
可知作者對太空科學的未來是有信心的，答案是C
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