Answer the questions(根據(jù)短文內(nèi)容回答下列問(wèn)題)

Imagine the situation. You are driving along 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(裝置)which uses satellites(衛(wèi)星)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 know where you are.

GPS, which means Global Positioning System, is a small radio 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 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(計(jì)算)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(精確的). 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.

1.GPS can help you find your position, can’t it?

2.What does a GPS look like?

3.How many things are mentioned that GPS devices can be put into?

4.What is the use of ground stations?

5.Why do some people think GPS devices will be popular in the future?

6.What is the author’s purpose of writing this passage?

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_______ _______ Martin look when he was young?

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You can pay the bill _______ in cash _______ by credit card.

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The film festival _______ _______ by the local government every autumn.

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Many students like _______ _______ of his pronunciation.

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Choose the best answer（根據(jù)短文內(nèi)容，選擇最恰當(dāng)?shù)拇鸢福?/p>

It's the end of class. When the bell rings, students of Luohu Foreign Languages School in Shenzhen quickly take out their cell phones. They want to log on to their micro blogs to check the interesting things that have happened in the last hour.

Since last year, the trend（潮流）of micro blogging has swept the country. Recent survey shows that most students in middle schools have a micro blog and some even update their blogs over five times per day.

"We learn many fresh and interesting things on micro blogs and they have become popular topics in class," said Andy ling, 14. "If you do not know about them, you are out of the loop."

It is also a great place for students to let out stress. "My parents always ask me to study hard, and encourage me before exams, but it really adds pressure," said Simon Zhang, 15. "When I share these feelings on my micro blog, I get many replies from friends in the same situation, which makes me feel better."

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Mr Shen, a professor at the China Education Association, suggests parents not worry too much as long as kids are not crazy about micro blogging. Maybe it can become a window for parents to understand their children.

"If parents can read their children's micro blogs, they'll know their thoughts, thus leading to better communication and solutions to problems," he said. He also gives some tips for kids.

●·Don't micro blog for more than one hour a day.

●·Never micro blog in class.

●·Try to talk face to face with people from time to time.

●·Be critical（批判性的）. Don't trust all the messages on a micro blog.

1.Students log on to their micro blogs to ________.

A.check the things B.write articles

C.listen to music D.call their parents

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A.not popular B.not excited

C.unhealthy D.unlucky

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C.The trend of micro blogging has swept the country since five years ago.

D.Kids should try to talk face to face with people, not just micro blog-gang.

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