Ladies and gentlemen, I returned to this year in a time machine. In the year 2500, we are able to travel through time to any year in the history of the earth. This year is your last chance your lifestyle to save the earth.

  Beginning in the middle of the 20^th century, a few people were worried about polluting the earth’s water and air, but most people did not change their way of life. Instead, they continued to pour(倒) dangerous chemical(化学物品) and other waste into lakes and seas, to drive more and more cars and trucks, and to cut down trees.

  By the year 2200, the earth’s water was completely polluted. People could no longer drink water, and they had to use other types of liquids(液体). Scientists said that in the future there might be too many people on the earth. But not enough was done.

  So by the year 2300, there were so many people that food became scarce. There was no water to grow food and all of the fish in lakes and seas died because of pollution. Terrible wars broke out between the rich and the poor. Scientists were working very hard to find another planet in space where humans could live.

  By the year 2400, the air was too polluted for humans to breathe. So we had to leave the earth. But only the rich were able to leave. Where did we go? Nowhere. And everywhere. You see scientists did not find another safe planet, so now we must travel around the universe in our space ships. We are still looking for a place to call our home.

  So it is up to you to change history. There is still hope. You must change your lifestyle now, before it is too late.

1.Which problem is NOT talked about in Paragraph 2?

A. Water        B. Air        C. Lifestyle     D. Food

2. The underlined word ‘scarce’ means ‘______’ in Chinese.

A. 昂贵的       B. 充足的       C. 缺乏的       D. 特殊的

3.Which of the following is NOT true?

A. Only a few people changed their lifestyle in the 20^th century.

B. There was no clean water for people to drink by the year 2200.

C. All the fish died because of the pollution by the year 2300.

D. We found a new home in another planet by the year 2400.

4.What’s the best title of the passage?

A. Stop polluting                       B. Change or leave   

C. Look for new home                   D. Return to the earth

　　We live in the “Computer Age”. Many years ago, computers couldn't do so much. They were big and expensive. They used a lot of energy. Only a few people were interested in them. Today, they are smaller and cheaper. They work faster than man and make fewer mistakes. They can remember much information. A computer can do with millions of problems in a few seconds. A person might need years to work out so many problems.

　　People now use computers in nearly every kind of work: finding lost things, guiding（指挥）trains and planes, managing（管理）telephone calls and traffic lights. Now there are many new kinds of computers. Some are very small and good for us to use in schools or at homes.

根据短文内容，判断正(T)误(F)。

根据短文内容和首字母提示完成单词，并将单词完整的写在后面的横线上。

We live in the “c  1   age”. Just 41 years ago，computers couldn't do much. They were very big and e  2  . They used a lot of energy（能量）.Only a few people were interested in them. Today computers are smaller and c  3  . They can do much difficult w  4   .

    Computers become important for many reasons（原因）.They work f  5   than man and make few mistakes. They can “remember” much information. A computer can do millions (百万) of problems in a few seconds. A person might need years to work o  6   so many problems.

People now use computers in every k  7   of work.. Computers are very useful and the use of computers is growing. More computers mean more jobs for people, because people need to run (操作)and mend (修理) them. Would you like to learn h  8   to run a computer?

　　It was a cold spring morning in London. The weather was very cold, and many people were ill. So there were many people in the doctor's waiting room. At the head of the queue was an old woman. The woman was a visitor. She did not live in London. She lived in the country. She was in the city to visit her daughter. She wanted to see the doctor because her back hurt. Soon an Indian（印度人）came into the waiting room, and walked quickly to the doctor's door. The old woman thought he was a queue jumper. She stood up and took his ann. Slowly, she said,“We were all here before you. You must wait for your turn…you…understand?”

　　The Indian answered:“No, madam. You don't understand! You're all after me! I'm the doctor!”

A．he was at the head of the queue

B．he was the doctor

C．he was an Indian

D．he was very ill