The stars we see at night are really huge like our sun, but they are much farther away in space. Some of them have planets(行星)like our earth travelling around them.
The stars are so hot that they give off great light and heat--more than the hottest, brightest fire you can imagine(想象). As we all know, light travels at the speed of 300, 000 kilometres per second. But the stars are so far away that their lights still take years to reach us. The light we see coming from some far-off stars started for the earth more than a hundred years ago.
The moon is a ball of cold rock. It is smaller than the earth. It circles round(环绕)the earth as the earth circles round the sun. The whole journey(旅程)of the moon round the earth takes twenty-eight days. We see it changing from new moon to half to full and back to new moon every twenty-eight days. Our word "month" comes from the word "moon".
1．The stars we see at night are very small.Mr. Black worked in a s________ town. Two weeks ago his friend helped him to find work in New York. So he and his wife were going to that big c________. Mr. Black wanted to live in a room on the f________ floor. He liked to walk in the beautiful garden after d________. But his wife liked to live on the second floor. At last(最后)they bought a new flat near the supermarket. They lived on the s________ floor. There were six rooms. It was big and clean. They were very h________.
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