Imagine the situation. You are driving along in a desert or on a mountain. You have no idea where you are. You passed the last house two hours ago. Then your car breaks down. It is night and it is cold. You have no mobile phone. What do you do? Well, next time take a GPS 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. It can find your position to within 20 meters. A GPS cannot start your car, but at least you will know where you are.

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

There are three parts to the Global Positioning System. The first part is the receiver. You can hold it in your hand, or 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 its position. The third part of the system is a network of ground stations. They are all over the world. They control the satellites and make sure they are working well.

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

1.According to the passage, with the help of the GPS, people _________.

A. can’t be lost in a new city

B. can’t find their way in different counties

C. can learn about the culture of an unknown place

D. can spend the least time getting to another place

2.We can learn from the passage that ___________.

A. there are three parts to the GPS

B. a GPS can’t be put into a watch

C. a GPS can help you start your car

D. the GPS are becoming more and more expensive

3.The underlined word “They” in paragraph 3 means “__________”.

A. Receivers B. GPS devices

C. Satellites D. Ground stations

4.The passage is mainly about ____________.

A. The history of the GPS B. the introduction of GPS

C. the shape of the GPS D. the three parts of the GPS

5.What can we infer(推断) from the passage?

A. All GPS devices have electronic maps.

B. People in many countries will use the GPS for free.

C. The receiver of the GPS contacts at least five of the satellites.

D. The GPS will become more and more common in everyday life.

Once upon a time, there was a lion and a mouse.

One day, when the lion was sleeping, the mouse ran onto his face. The lion woke up. He was very angry and caught the mouse. “I will eat you!” the lion said angrily.

The mouse cried out,“If you do not kill me, I would be happy to give you a reward(回报).”The lion laughed at the idea. He did not think a little mouse could help such a big strong animal like himself. But he still let the mouse go.

After a few days, it happened. The lion was caught by hunters’ net. He tried his best to leave, after half a day, but he still couldn’t get out of the net. He was very sad, he thought he was dying. At that time the lion felt something nibbling(啃,咬) on the ropes. It was the mouse. Just before dark, the work was done. There was a hole in the net. The lion got free through the hole. He was very happy and thanked the mouse, “My friend, you have saved me. I will never doubt the power of small animals like you.”
From then on, the lion and the mouse became friends.

1.The lion didn’t eat the mouse at last, did he?

A. Yes, he did. B. Yes, he didn’t.

C. No, he did. D. No, he didn’t.

2.How was the lion when he was caught by hunters’ net?

A. Happy. B. Nothing. C. Terrible. D. Free.

3.The underlined word “doubt” in the passage means________.

A.相信 B.怀疑 C.创新 D. 喜欢

4.Which is NOT wrong from the passage?

A. The lion didn’t catch the mouse first.

B. The lion was killed by the hunters.

C. The lion ran away by himself.

D. The lion ran away with the mouse’s help.

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