Many people believe that,by the year 2100,we will live on the planet Mars (火星).Here is what life could be like.

First of all,transport should be much better. By 2100,spaceship can travel at half the speed of light. 1     Secondly,humans need food,water and air to live. Scientists should be able to find plants that can grow on Mars. These plants will provide us with food and air.

2      We could easily jump too high and fly slowly away into space. To prevent this,humans on Mars have to wear special shoes to make themselves heavier.

Life on Mars will be better in many ways. 3      It is possible to live in a large building with many bedrooms. Then,robots will do most of the work,so we have more time for hobbies.

4      Every student can study,do their homework on the computer and take exams in online schools. Each student will also have their own online teacher called “ e-teacher”.

However,in some ways,life on Mars may not be better than that on the earth today. 5      Meals will probably be in the shape of pills (药片)and will not be as delicious as they are today. Also,space travel will make many people feel ill.

根据材料h容,从下面五个选项中选出能填人文中空缺处的最佳选项,使短文意思通顺,内容完整,并:将其标号填写在下面题号后的横线上。

A. There will probably be no school on Mars.

B. It might take us two or three days to get to Mars.

C. There is a problem for us to live on Mars.

D. Food will not be the same.

E. First,people will have more space.

1.        2.        3._     _4.        5.       

   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.    

根据材料内容选择最佳答案。

(   ) 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.

   A 14-year-old boy from the USA was described as a hero yesterday after he saved the life of a woman in another country.

  Dean Bluey from Dallas,Texas,was a school boy who has much 1      in computer. One day,he 2      an email to a friend on the Internet. Suddenly he received a message saying “ Help!Pain!Help ” The message was from Finland,3      kilometers away from

America.

“ I didn’t know 4      I should do, ” Dean said to a reporter afterwards. “ It was really difficult to tell if the message was real. ” So Dean did nothing at first. 5      the message kept coming.

“By then it was easy to see that someone was in trouble,” Dean explained. He 6      and discovered that the sender was a student called Tarja,who was alone in a university library. She was ill. What was 7     ,there was no phone around her. Her only way of

communicating with the world was by email. Dean got in touch 8      the police immediately. And they realized that the situation was quite serious. They called the police in Finland. Then an ambulance rushed to the library. 9       ,she was still alive and was sent to the  hospital quickly. “I’m glad she’s OK,” Dean said. “It’s hard to believe that 10      saved her life. ”

(   ) 1. A. interest    B. interests

C. interesting    D. interested

(   ) 2. A. sent    B. sends

C. was sending    D. is sending

(   ) 3. A. thousand    B. thousand of

C. thousands    D. thousands of

(   ) 4. A. how    B. what

C. where    D. when

(   ) 5. A. So    B. And

C. But    D. As

(   ) 6. A. telephoned    B. replied

C. found    D. talked

(   ) 7. A. better     B. worse

C. harder    D. easier

(   ) 8. A. with    B. on

C. to    D. at

(   ) 9. A. Hardly    B. Happily

C. Luckily    D. Carefully

(   ) 10. A. a boy    B. doctors

C. the police    D. an email

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