The earth moves round the sun, and the moon moves round the earth. When our part of the earth turns to the moon, it is night.

   The sun is much bigger than the moon. But sometimes the moon looks bigger than the sun, because it’s much nearer to the earth.

   The sun is very bright. It gives a very strong light. The moon looks quite bright,  too. But it doesn’t give any light at all.

    The moon looks much bigger and brighter than the stars. But actually the stars are much bigger and brighter than the moon. They look smaller than the moon because they’re much farther away from us.

Read and choose the right answer

1.____moves round________.

   A. The earth; the moon   B. The moon; the earth

   C. The moon; the stars    D. The sun; the earth

2.Sometimes the moon looks bigger than the sun, because_________.

   A. it is much bigger than the sun

   B. it comes out only at night

   C. it is much nearer to the earth than the sun

   D. it doesn’t give a strong light

3.The sun_______________.

   A. is very bright, and it gives a very strong light

   B. isn’t bright, but it gives a very strong light

   C. is very big, but it doesn’t give any light at all

   D. is very round, but it can’t move round

4.The stars______________.

   A. look much bigger than the moon

   B. look much bigger than the sun

   C. are a lot brighter than the moon, but they are not bigger than the moon

   D. are much farther away from us than the moon

Bill Gates is head of the software company Microsoft and one of the world’s richest men. He was born on October 28, 1955 and grew up in Seattle with his two sisters. He was a very bright boy. Science and math were his two favorite subjects at school. And he dreamed of being a scientist.

Bill first started to play on computers at the age of 13. At that time, a computer was a very large machine. Once he was interested in a very old computer. He and some of his friends spent as much time as possible on computers. In the end, they worked out a software program. Bill sold it for 4,200 dollars when he was only 17.
In 1973, Bill went to Harvard University. In 1975, Bill and his partners developed a software program called BASIC. This was not the first program ever created, but its inventors were the first to decide that people who wanted to use it should pay for it. BASIC was a success. Then Bill left Harvard to work for Microsoft, a company he started in 1975 with his boyhood friend Paul Allen. They thought the computer would come into every office and every home soon. So they began developing software for personal computers. They improved the software to make it easier for people to use computers. After many years of hard work, Microsoft becomes one of the most successful companies. And Bill Gates also becomes one of the richest businessmen in the world.
根据文章内容将信息卡补充完整。

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We live in the computer age. People use computers to do much of their work. But few people know how to look after them. Remember the following when you use your computer:

1.Keep your computer in a cool, dry room. Too much or too little heat is bad for computers. Damp(潮湿) is also bad for them.

2.Do not let people smoke near your computer. Smoke of all kinds is very bad for many parts of a computer.

3.Do not eat or drink when you are near your computer. Pieces of food and a little water in the keyboard are also bad for a computer.

4.Keep your screen clean and do not have it too bright. They are bad for your eyes. Make sure the screen is not too far from or too near your eyes. Some people use different glasses to protect their eyes when they use a computer.

1.Computers can          people to do a lot of work.

        A.use       B.help     C. make       D.take

2.Few people know how to          their computers.

        A.look at     B.try out    C.look for   D.take care of

3.A computer works well at a temperature of         .

        A.0℃      B.-5℃      C.20℃            D.35℃

4.Smoke is not good for many parts of a computer, is it?

        A.Yes,it is.  B.No,it isn't.   C.Yes,a little.  D.Not at all.

5.A dirty screen or a very bright screen is    for your eyes.

        A.bad     B.good     C.useful        D.helpful

The earth moves round the sun ,and the moon goes round the earth .When our part（部分）of the earth turns to the sun ,it is day ,When our part of the earth turns away from the sun ,it is night. The sun is much bigger than the moon .But sometimes the moon looks bigger than the sun, because it's much nearer to the earth. The sun is very bright .It gives a very strong light .The moon looks quite bright, too .But it doesn't give any light at all. The moon looks much bigger and brighter than the stars .But actually（事实上）, the stars are much bigger and brighter than the moon .They look smaller than the moon because they're much farther away from us.

1.Sometimes the moon looks bigger than the sun, because______.

2.The stars ______.

3.When it is day, _______.