1. 阅读短文，回答问题
Music, mood(心情), and health
When we turn on the radio and listen to a good song, we cheer up, but scientific music influences our brains and bodies in many other ways.
If you turn up the volume (音量) and sing along to your favourite songs, it's good for your heart and health. But if other people can hear the music from your headphones, you should turn down the volume — it can cause you hearing problems.
If you listen to fast music while you run outside, it can improve your health and help you to speed up your running. But you mustn't listen to music when you're cycling because it may cause an accident.
Listening to music can help you to pay more attention to your homework. But it's better to listen to music without lyrics.
Learning to play an instrument can increase your IQ because you have to use both sides of your brain.
Music helps people to calm down(镇定下来). Relaxing music slows down your heartbeat and breathing. It can also help reduce(减少) pain.

（1） Why should we turn down the volume if people can hear the music from our headphones according to the material?

A . Because the noisy sound may influence others' work. B . Because the loud sound can break our headphones. C . Because the loud sound is bad for our hearing. D . Because the noisy sound may harm our hearts.
（2） When we are listening to music, ____ is dangerous for us.

A . eating B . riding our bikes C . studying D . working out
（3） While we are doing our homework, we had better ____.

A . listen to music without lyrics B . not listen to music C . turn down the volume D . listen to music with more lyrics
（4） Which of the following is TRUE according to the material?

A . Listening to any song can make people cheer up. B . Listening to soft music can help people run faster. C . Learning to play the guitar can increase people's IQ. D . Relaxing music can help sick people breathe faster.
（5） The material is most probably from ____.

A . a travel guide B . a sports report C . science fiction D . a health magazine

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	If you turn up the volume (音量) and sing along to your favourite songs, it's good for your heart and health. But if other people can hear the music from your headphones, you should turn down the volume — it can cause you hearing problems.
	If you listen to fast music while you run outside, it can improve your health and help you to speed up your running. But you mustn't listen to music when you're cycling because it may cause an accident.
	Listening to music can help you to pay more attention to your homework. But it's better to listen to music without lyrics.
	Learning to play an instrument can increase your IQ because you have to use both sides of your brain.
	Music helps people to calm down(镇定下来). Relaxing music slows down your heartbeat and breathing. It can also help reduce(减少) pain.