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

根据句意选择正确的地点或名词.

________(1)We can have all kinds of water sports there.

________(2)It's a train only runs under the ground.

________(3)People go there to visit space ships, rockets, etc.

________(4)There are many kinds of animals in the yard.

________(5)The children play there and have a great time.

________(6)In this house many kinds of fish live.

________(7)We can see all kinds of plays there.

　　In our house, there are lots of comic(滑稽的) books. Some are on the table in the living room. Some are under my bed. Some are under Neal's bed.

　　Neal is my brother. He is seven, two years younger than I am.

　　Every Saturday we do our work first. Then mother lets each of us buy a comic book about animals or children.

　　We can hardly wait to get home to read them! We lie on the floor between our bed. Everything is very quiet then－until we burst out laughing. Mom calls our laughs “explosions”. I guess they sound that way to her.

　　Yesterday I heard Mrs. Easton ask Mom, “Do you really LET your boys read comic books? I must say I am surprised!” Mom said,“Of course I let them!” Then she said, “That is, I let them read comics about animals and children. Not all comic books are bad. Some are very good.”

　　“I wonder why children like comic books?” Mrs. Easton asked.

　　Mom laughed. “I really don't know,” she answered. “But we know they do!”

　　Well, no one asked me. But I could tell Mrs. Easton and mother why we like comics!

　　The ones Neal and I read are funny. The people and the animals in them are smart. They are not goody-goody (虚假的), the way they are in some stories.

　　Comic books are something like space ships. They take Neal and me to the planet Mars or to a rabbit's house. They bring us old friends and new friends. Donald and Mickey and Bugs and Elmer seem like real people to us!

　　We like comic books most of all because we never know what will happen next. In some books, you can always tell what's going to happen.

1．The stories in the comic books often make the two brothers very sad and angry.

2．The two brothers won't get new comic books before they finish doing their work every Saturday.

3．All the grown-ups know clearly why children like reading comic books.

4．The stories in comic books can take children to places they have wanted to and help them meet a lot of friends.

5．The two brothers like comic books best of all because they can always guess what will happen next.