阅读理解 the earth in the sun fami

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阅读理解 the earth in the sun fami

The earth is not the only body that travels around the sun.With it are eight other planets(行星),fellow members of the sun's family.

Two of them are nearer while the other six are farther from the sun than the earth is.The farther they are,the longer trips they make around the sun.People noticed long ago that these made travelling bodies move around in the sky in definite(一定)paths.

We know that every little bit of matter in the universe pulls upon every other bit of matter.There exists(存在)a pull between the earth and the moon,which keeps the moon travelling in its orbit(轨道)around our planet,the earth.The gravity()holds you to its surface,and pulls back to it the ball which you throw into the air.Of course the ball also pulls on the larger earth,but the earth is so much larger that the pull is not noticed.

Now remember that large bodies exert(施加)a greater pull on any body than smaller ones which contain(含有)less material(原料,材料).But each object in the universe,no matter how small,pulls on all other objects to some degree(某种程度).

1According to the passage,there are________fellow


members besides the earth in the sun's family.[]

Aeight other Bseven other Cnine other Dover ten other

2Which of the following statements is TRUE?[]

AThe earth is farther from the sun than any of the other eight planets.

BTwo of the planets are farther from the sun than the earth.

CSix of the planets are closer to the sun than the earth. DThe earth is the third nearest planet to the sun. 3What holds the nine planets in their paths?[] AThe sun's energy(能量). BThe earth. CThe universe. DGravity.

4Why the moon travels around the earth is________.[] Athat the sun pulls upon the moon Bthat the earth pulls upon the moon

Cthat the earth and the moon pull upon each other Dthat the other eight planets pull upon the moon 5In the last paragraph the writer tell us________.[] Aeach object in the universe pulls upon all the others more or less

Ba large body pulls on a small one less than a small body


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