Look at this,  please.  It's __1___ my  family. ___2___  man and the  woman  ___3___  the  middle  is  my  father  and  mother.  On  the  left(左边)  is  my   ___4___ Mike. And the girl on the right(右边) is  me. You  can  see  it's  a  family ___5___  five  people. This is  my  bedroom.  There   ___6___ a  clock  on  my  desk,  and  a  computer is on  the  desk, ___7___ .  My ___8___ bedroom is  over  there.  You can also  see a  desk, ___9___ it's  not  big.  There are ___10___ flowers  and  books  on  it.

　  Tom and Fred were talking about the year 2050.

　　“What will   1  be like in the year 2050?” asked Tom.

　　“I don’t know,” said Fred. “What do you think?”

　　“Well, no one knows. But it is __2__ to guess,” said Tom. “In the year 2050 everybody will carry a pocket (袖珍) __3___. The computer will give people the __4__ to all their problems. We shall all have telephones in our pockets,__5___ . And we’ll be able to talk to our friends all over the world. Perhaps(也许) we’ll be able to ___6__ them at the same time. Machines will do ___7___of the work, and people will have more__8__. Perhaps they will work only two or three days a week. They will be able to fly to the moon by spaceship and spend their holidays there.”

　　“I’m very _9__to hear that. I hope to fly to the moon. And I hope I’ll be able to live _10___,” said Fred. “Won’t that be interesting? Just like a fish.”

A rich American went into a shop in London. He wanted very much __31___ a nice looking watch. He saw a watch and liked it __32_____much that he decided to buy it. But the owner of the shop insisted five hundred dollars for it. When the American was hesitating, a young man suddenly came into the shop, took___33__out of the owner’s hand and ran out with it. It all happened in few seconds. When the owner ran out ___34____the street, the young man was already disappearing among the people. The American went on. At the next corner, he saw ___35_____with the stolen watch in his hand. “Don’t you want to buy a fine watch, sir?” he asked in a low_____36____ , “It’s only a hundred dollars.”

“The young man doesn’t know _____37____saw him stealing the watch just now,” he thought. The American paid at once and went ___38______back to his room with the watch. He told his friend about the fine watch. His friend took a look at the watch and started laughing. He said, “You are ____39_____. The watch isn’t worth ___40______ten dollars. I’m sure the shop owner and the young man planned all this together.”

You have often __1__ people talk about work. Perhaps you have __2__ your friends about how hard you worked to get something done. However, you may have done no work __3_ you think you worked hard.

A boy is pushing a big box very hard, but the box is __4__ heavy for him to move and he may __5__ to push against the box. __6__ the language of science, he has not done __7__ work. Can you think you are working when you are studying or talking?

In science, work is only done when a force(力) moves something that has weight through a distance（距离）.

Work =" force" × distance moved.

__8_ you want to find out whether work is done, _9_ yourself, “Is a push or a pull moving something through a distance?” If your answer is __10_, then work is being done.

Martin is an American boy. He is eight years old. His parents   41  _ five years ago and he is now living with his grandmother in New York.

　　One morning,  Jimmy ,  one of his classmates, came to his home with an exercises book in his hand. Jimmy lives in a house not far from Martin's. They often go to school together.

　　"Would you help me with this maths problem?" Jimmy said as soon as he came into the room. "It's too hard for me and I can't work it out."

　　"Let me try, " Martin said. "I   42  it isn't too hard for me. "

　　Martin tried his best but he couldn't work it out,   43   .

　　"If we had a small computer,  all the problems would be  44   for us to do. " Jimmy said.

　　"A small computer . . . , " Martin thought for a minute,  then he said, "I've got an idea. We can   45  one in a shop. "

　　"A computer is very   46   ,  and we don’t have enough money. "

　　"That's OK, " said Martin. "We can ask the new president (总统)   47  some money. He said he would help anyone in trouble. I' m sure he will help us. He is very rich, you know."

　　So they decided to write a letter to the new president. Soon the letter was finished and they hurried to the post office.

　　In front of the post office stood a small box. They   48   the letter into the box carefully and went home happily.

The next morning, they    49   the post office on their way to school. They found   50  ,  the box was not a post box but trash-box (果皮箱).