题目内容

Rewrite the following sentences as required (根据所给要求完成下列句子,每题空格限填一词)

1.He’s never been there before.(改为反意疑问句)

He’s never been there before, _______ _______?

2.When he was young, Martin looked tall and thin.(对划线部分提问)

_______ _______ Martin look when he was young?

3.You can pay the bill in cash. You can pay the bill by credit card.(合并为一句)

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

4.The local government organizes the film festival every autumn.(改为被动语态)

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

5.Martin asked the man, “Are you Mr. Smith?”(合并为一句)

Martin asked the man _______ he _______ Mr. Smith.

6.Many students like laughing at his pronunciation.(保持句意不变)

Many students like _______ _______ of his pronunciation.

7.girls, of, Team, from, made, Volleyball, up, Women’s, different, is, provinces(连词成句)

_______________________________________________________________。

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Answer the questions(根据短文内容回答下列问题)

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(装置)which uses satellites(卫星)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(计算)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.

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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