Imagine the situation. You are driving a car along a desert or on a mountain. You have no idea        you are. You passed the last house two hours ago. Then your       breaks down. It is night and it is cold. You have no mobile phone. What do you do? Well, next time take a        with you. This invention may be able to help you. It is a device(装置) which uses satellites to find the user’s position(位置). It can find your position to within 20 metres. A GPS cannot start your car, but at least you will         where you are.

GPS, which means Global Positioning System, is a small        receiver. It looks like a mobile phone. You can hold it in your hand, or put in your pocket. It is sometimes put into a watch or a        . We also find GPS devices in cars, planes, or boats. Some of these devices have electronic       , so you know where you are. For example, in a city they can tell you the name of the         .

There are       parts to the Global Positioning System. The first part is the     . You can either hold it in your hand      have it fixed into your car, plane, etc. The second part is a group of satellites orbiting the Earth. The receiver contacts at least four of the satellites and calculates(计算) its position. The third part of the system is a network of ground stations. They are all over the world. They       the satellites and make sure they are working well.

Some people think that in the future the GPS will be as        as the mobile. They are becoming       and more and more accurate(精确的). There are also new uses for the GPS. Perhaps they will become like       . Everyone will have one and you will never be lost again.

1.A.where                 B. what               C. who                  D. how

2.A.ship                B. car           C. train                  D. plane

3.A.watch         B. ring         C. clock                 D.GPS

4.A.advise                  B. know              C. represent             D. speak

5.A.radio          B. TV           C. robot                D. machine

6.A.room          B. office               C. road                  D. mobile phone

7.A.parts               B. maps                 C. video                D. music

8.A.studio         B. teenager     C. bus                  D. street

9.A. five            B. four                 C. three                D. two

10.A. sender             B. receiver      C. Internet      D. system

11.A.and               B. then         C. but           D. or

12.A.control              B. achieve       C. allow               D. imagine

13.A.expensive              B. special           C. new                  D. common

14.A. cheaper           B. easier              C. more expensive       D. bigger

15.A.computers             B. robots            C. satellites      D. watches

　　I'll never forget the days when I camped（野营）with my classmates last summer. Early in the morning, 200 children from the fourth grade gathered at the bus station. After saying goodbye to our parents, we stood in line to get on the bus. It was more than two hours before we arrived at the campground.

　　We got off the bus cheerfully like birds flying out of the cages. Laughing and shouting, we jumped and ran all over the place. For us, it was the first time to be away from our parents. Some started to feel homesick（想家）even before the dark. But as the night party and the dances began, the homesickness was gone.

A．They learned by themselves.

B．Their friend

C．The teacher

A．He thinks this activity was important for him.

B．He learned a lot in the camp.

C．The weather is very good during the week when he camped.

One Friday night, a poor young man stood at the train station. He played his violin and many people put 41  into the hat in front of him.　　
The next day, the young man came to the station 42  . But this time he took out a large piece of paper 43 some words on it. It said “Last night a lady 44  Mrs Sang put an important thing into my hat 45  . Please come for it.”　　
After about an hour, a middle-aged woman ran to the young man in a hurry and said, “You do come here. I know that you’re a(n) 46  man and will certainly come here.” They had a talk and the young man made sure she was the owner. Then he took out a lottery ticket and 47  it to the woman. Her husband bought a lottery ticket every day. Yesterday when she knew the lottery ticket he bought won, she was very 48  . The prize of the lottery ticket was $ 500,000. When she walked past the young man, she took out $50 and put it in the hat. 49  , the lottery ticket was also thrown in.　　
Later, someone asked the young man, “You play the violin every day to make money. Why didn’t you just take the prize of the lottery ticket for yourself?” the young man said，“Although I don’t have much money, I live happily. But if I 50  honesty, I won’t be happy forever.”　　
【小题1】 A. money       B. tickets          C. paper　　
【小题2】 A. instead       B. differently      C. again　　
【小题3】 A. for          B. with           C. over　　
【小题4】 A. introduced    B. spelled         C. named　　
【小题5】 A. by mistake     B. for mistake      C. on mistake　　
【小题6】 A. crazy         B. cool        C. honest　　
【小题7】 A. gave          B. lent            C. offered　　
【小题8】 A. surprising       B. happy          C. exciting　　
【小题9】 A. But            B. However      C. Therefore　　
【小题10】 A. have            B. win             C. lose