The Earth is big. There are rocks(岩石)on the Earth. There is soil(土壤) on the Earth. There is water on the Earth.
Look at the people on the Earth. Do they float(漂浮) on the Earth? Jump. You come down to the ground. Jump up again. You come down again. You always come down to the ground.
The Earth pulls things down. The pull of the Earth is gravity(引力).
( )1.The Earth is .
A.big B. wide
C. small D. short
( )2.There are on the Earth.
A. rocks B. soil
C. water D. A,B&C
( )3.Do people float on the Earth?
A. We don’t know. B. No, they don’t.
C. Yes, they do. D. It is not clear.
( )4.What makes people come down to the ground again?
A. The gravity of the Earth.
B. We don’t know.
C. The rocks of the Earth.
D. The water of the Earth.
( )5.If you jump, you come down to .
A.the soil B. the rocks
C. the Earth D. the ground
参考答案:
答案:1-5ADBAD
解析:1.由文章第一段第一句话“The Earth is big.”可知,地球很大,故选C项。
2.由文章第一段内容“ There are rocks(岩石)on the Earth. There is soil(土壤) on the Earth. There is water on the Earth.”可知,地球上有岩石、土壤和水,故选D项。
3.根据文章第二段第二、三、四句话“Do they float(漂浮) on the Earth? Jump. You come down to the ground.”可知,人类不会漂浮在地球上,故选B项。
4.由文章最后一段内容“The Earth pulls things down. The pull of the Earth is gravity(引力).”可知,是由于地球引力,所以人类不会漂浮在地球上,故选A项。
5.根据文章第二段第二、三、四句话“Do they float(漂浮) on the Earth? Jump. You come down to the ground.”可知,如果你跳的话,你会落在地面上,故选D项。
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