【题目】
Young people are at risk of hearing loss due to listening to loud noise for long periods of time, World Health Organization (WHO) said. The reason is that loud volumes (音量) can harm your hearing. It is not safe to listen to sounds that are louder than 85 decibels (dB 分贝) for eight hours or 100 dB for 15 minutes. The sound of a busy road is about 85 dB and the sound of a rock concert can be about 100 dB. Loud noise is harmful to the inner ear (内耳). Most of us are born with about 16,000 hair cells (听毛细胞) in our inner ears. These cells receive sounds. However, listening to loud noise for a long time can make these cells work too hard and cause some of them to die. This is what causes hearing loss. Some people might think that their music isn’t all that loud. But this can depend on where you are. For example, if you are in a noisy place
| like the subway, you might turn up your music too loud without realizing it. Later, when you listen to it at the same volume in a quiet place, you might feel uncomfortable. WHO said the “safe level” for most sound is below 80 decibels for up to 40 hours a week. But do you know a level of 80 can be the noise of a subway. 
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【1】According to the story, WHO suggests that it is NOT safe to _____.
A.listen to music every dayB.watch TV for over an hour
C.listen to loud sounds for a long timeD.go to a concert
【2】The sound level of a busy road is about _____.
A.80 dBB.85 dBC.100 dBD.115 dB
【3】Why can listening to loud music cause hearing problems? Because it _____.
A.puts our brains under great pressureB.can cause hair cells in the inner ear to die.
C.prevents our ears from restingD.allows people to get used to listening to loud sounds.
【4】What will people do when they listen to music in a noisy place?
A.They will turn it up without realizing it.B.They will stop listening.
C.They will do nothing.D.They are likely to listen to music with headphones.
【5】Which of the statements below is NOT right according to the article?
A.The noise of a subway is higher 80 decibel .
B.Noise-canceling headphones can get rid of background noise.
C.Keep your device volume at 50 to 60 percent.
D.Don’t use your headphones for more than an hour per day.
