题型：阅读判断 题类：真题 难易度：普通
山东省临沂市2019年中考英语试卷
Do you often listen to music at loud volumes (音量)? You should know that this habit is bad for your hearing. Over 1 billion young people are at risk of hearing loss (听力丧失) ,because of listening to loud noise for long periods of time. Listening to music or watching a TV show at loud volumes can harm your hearing.
The United Nations has standards for safe listening. It is not safe to listen to sounds that are louder than 85 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二Most of us are bon with about 16,000 hair cells (听毛细胞) in our inner ears. These cells notice 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. Once this happens, it's hard to get your hearing back.
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 alight feel uncomfortable
The "safe level" for most sound is below 80 dB for up to 40 hours a week. A level of 80 dB is about equal to (相当于) the noise of a subway.
Here is some advice on safe listening. Over—the—ear headphones (头戴式耳机) are better than in—ear ones. They do a better job of stopping outside noise, so you can listen at a lower volume. Don't listen to loud music on your headphones for a long time. Follow the 60:60 rule: listen to music at 60 percent of your headphones' maximum volume for no more than 60 minutes a day.
I think our school days are the best and happiest days in our life. We should learn not to waste this wonderful period of time.
Be active. {#blank#}1{#/blank#}Instead, we should be interested in the school life and school subjects. We should join lots of activities. It will make us look friendly if we walk around the school with a smile. Remember that the school isn't a vacation spot（度假胜地）. {#blank#}2{#/blank#}
Keep fit. {#blank#}3{#/blank#}If we don't get enough sleep, we will feel sleepy in class. In order to keep our body fit, we should also eat less junk food.
{#blank#}4{#/blank#}Some students always say that they will study hard tomorrow. Actually, if we fall behind, it's very difficult for us to catch up.
{#blank#}5{#/blank#}Everyone fails in some tests, loses some matches or has some bad days. We should try not to let small things influence our mood（情绪）.
A. If we don't study hard, we will regret wasting our best time in the future. B. Don't say things are difficult or boring in the school. C. Study hard right now. D. Study depends on a healthy body. E. Don't be too disappointed（失望的）if things sometimes go wrong F. Remember to be successful. |
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