You probably know you should say "please" and "thank you" at restaurants. You probably know the rules of a library. You know you should respect and be nice to your classmates. But do you have music manners?

Keep It Down! You have to notice the volume of your music. You should not play your music so loud that everyone around you can hear it. Some people might even get angry. Very loud music can also be bad for your ears, so even if you are alone when listening to our MP3 player, you shouldn't have it turned up too high.

Take Them Off! You need to know when to turn your MP3 player off and put it away. Libraries and schools don't allow MP3 players. There are other places, like museums, that don't have rules, but it would be rude to have your MP3 player on.

Take One Out! Once in a while it's okay just to take out one earphone and not other. Imagine you are listening to your MP3 player when someone asks you the way. It would not be rude to take out one earphone, tell him the way, and put back the earphone and continue listening. You can also do this when you order food at a fast-food restaurant or when you answer the telephone and it's not for you.

It's Your Choice! There are times when you need to decide what is best. For example, some people can listen to music on their MP3 players when read books, while others think it is disturbing. In cases like this, you need to do what seems right for you.

1.The underlined word "volume" in Paragraph Two probably means" .

A. the type of music B. the length of a song

C. the amount of a sound D. the colour of an MP3 player

2.We can take one earphone out when we .

A. show a stranger the way B. talk to friends on the phone

C. read a book in the library D. have dinner with our parents

3.It's all right to use our MP3 player in .

A. schools B. libraries C. restaurants D. museums

4.What can be the best title of this passage?

A. Music Lovers B. Music Manners C. MP3 Players D. MP3 Earphones

You’ve got plenty of emails from your mom, and maybe even a few from dear old grandma. But have you ever received a message from a river?

Now, Ireland’s River Lee is sending out much information, thanks to wireless(无线的) technology. In a program called the DEPLOY project, scientists have put some sensors(传感器) in rivers that can find pollution levels.

Instead of asking scientists to collect water samples several times a day, the government can now examine pollution levels in the water, and find out if there is anything polluted entering the river. This makes it much easier for scientists to protect the environment, since problems can be discovered before a serious pollution accident really happens.

People in the area can also receive free reports from the river, so that they can find out whether the water is safe for swimming or boating on a certain day. And people can also know if the water is clear enough for them to drink and use.

The DEPLOY project has not only started in Ireland, also the same programs have started in thousands of places around the U.S. Now you live in a world in which you could receive information with your mobile phone about environment. The technology should help to make us know more about the pollution that surrounds us—which just might get us all a little more involved with trying to clean up our world.

1.How do scientists find pollution levels in rivers?

A. By putting sensors in rivers. B. By using mobile phones.

C. By boating or swimming. D. By surfing the Internet.

2.The underlined word “samples” in the passage means “_______” in Chinese.

A. 样品 B. 有机物 C. 无机物 D. 示范

3.The DEPLOY project is a project that cares for ________.

A. weather B. environment C. industry D. study

4.Which of the following is TRUE?

A. The DEPLOY project has only started in the United States.

B. The DEPLOY project tells us how to keep the air and water clean.

C. The DEPLOY project helps us live in a world with clear air.

D. You can receive information about environment with your phone.

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