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4. The satellites are sending some information to          (we).

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  Long,long ago people made fires from lightening (闪电). But they had to keep the fire burning,for they couldn’t start it again if there was no lightening. Later,they found out hitting two pieces of stone together could make a spark(火花). The spark could fire dry leaves. In this way they could make the fire again if it went out.    Then people also learned to make a fire by rubbing (摩擦).They made a hole on a piece of wood and put a smaller stick into the hole. They turned the stick again and again. After a few minutes they got a fire.

Years went by,people learned other ways to make a fire. Sometimes they used the heat from the sun. They held a piece of glass in the right way and made a piece of paper on fire.

  About two centuries ago,people began to make matches. Matches brought people a quick and easy way to make fires. Today matches are still being used,but people have more new ways to make fires. One of them is to use an electric fire starter. Of course all electric fire starter is much more expensive than a box of matches. But it is very useful.

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(   ) 1 . What could the spark do according to the passage?

 A. Fire any leaves.

B. Bum anything.

C. Burn dry leaves

D. Keep fire burning.

(   ) 2. TTie underlined word “it” in paragraph 1 refers to “       

A. the lightening     B. a spark

C. the fire     D. the match

(   ) 3. How long have matches been used?

A. For about two thousand years.

B. For about two hundred years.

C. Since people began to use fire for cooking.

D. Since people used the heat from the sun.

(   ) 4. What can we know from the passage?

A. Electric fire starter is a very useful way  to make fires.

B. People haven’t used matches since they had electric fire starters.

C. Today there are only two ways to make fire.

D. Some forest fires happen from lightening.

(   ) 5. Which of the following is the right order of the ways to make fires that people got to know?

a. with a match

b. from the sun

c. from lightening

d. by rubbing

e. with an electric fire starter

A. c,d,a,b,  e  B. b,c, a,e, d

C. c,d, b,a, e  D. d,a, c,d, e

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(   ) 5. Why not          your teacher for help when . you can’t finish        it by yourself?

 A. ask; write B. to ask; writing

 C. ask; writing D. asking; write

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(   ) 4. 一But where are the books?

—Don’t worry. They          here next Friday.

A. have sent    B. will be sent

C. are sending    D. have been sent

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   Men have always wondered about the earth they live on and about the sky above them.

  When early men looked at the night sky,they asked themselves a lot of questions. They looked at the moon,and wondered what this strange bright object in the sky was. They did not understand why it changed its shape from night to night. They looked at the stars and planets. They also wondered why some of them changed their positions,while others did not.   

  They also thought about the shape of the earth,too. Most early people believed the earth was flat.

   In different parts of the world,there were different ideas about the universe. The ancient Greeks were the first people to study the universe more scientifically. In the sixth century BC,Pythagoras put forward the idea ^ that the world was round. However,he could not explain . why people at the bottom of the world did not fall off. It was not until the sixteenth and seventeenth ' centuries that scientists found the answers to some ' important questions. With the help of Galileo’s  telescope,people could see the sky more clearly,and find the positions of the stars and planets. Finally in 」 1665,Isaac Newton explained to the world what gravity   was and people at last understood why they did not fall -off the earth.    

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(   ) 1. What have Men wondered about?

A. The population of the earth.

B. The earth they live on.    

C. The sky above them.    

D. Both B and C. H

(   ) 2. Who was the first people to study the universe more scientifically?

A. The ancient Greeks.

B. The ancient Chinese.

C. The ancient Egyptians.

D. The Russians.

(   ) 3. When did Pythagoras put forward the idea that the world was round?

A. In the sixteenth century.

B. In the seventeen century.

C. In the sixth century BC.

D. In the seventh century BC.

(   ) 4. Who explained to the world what the gravity was?

A. The ancient Greeks. B. Galileo.

C. Isaac Newton. D. Pythagoras.

(   ) 5. Which of the following statements is wrong?

A. Early men wondered what the strange bright object was.

B. They also wondered why some planets changed their positions.

C. Pythagoras could not explain why people at the bottom of the world did not fall off.

D. With the help of Newton,people could see the sky more clearly.

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(   ) 4. A new zoo          in that area next year. 

A. built    B. was built

C. builds    D. will be built

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(   ) 3. Thank you for        me        this problem.

A. helping ; solve B. helping; solving

C. to help; to solve D. help; solve

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