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 One billion teenagers and young adults around the world are in the face of losing their hearing by listening to loud music. This is according to the World Health Organization.

 Few things can make people happy and full of energy like good music. Many people believe louder is better if you are listening to rock and roll. But if you really listen to the music loudly, even really good music, it can hurt your hearing badly.

 If a person takes a subway to go from one place to the other for half an hour in the morning and a half an hour in the evening, and every day has to turn up the volume on his audio device because there is so much of noise of the train and everything around, and is listening to for one hour every day, his hearing is going to be hurt seriously in a few years, in a couple of years time, for sure.

 There can be many kinds of unsafe levels of sound. It depends on how loud the sound is and how long you listen to it. Unsafe can mean noise levels of 85 decibels for eight hours a day or 100 decibels for just 15 minutes.

 There are simple ways to protect people from unsafe sound levels. Young people who wear earplugs during concerts can enjoy music at 90 decibels as much as they can at 110 decibels. But earplugs may not look very cool. The fact that earplugs may look un-cool may be true today, but if there is nothing wrong with your hearing in the future may be true and wearing earplugs may actually be cool.

 Another common suggestion is to turn down the volume on your personal audio devices. The World Health Organization also advises young people to limit their use of such devices to less than one hour a day.

 Besides, the World Health Organization reminds people to use technology, such as smart audio devices keep listening levels safe.

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阅读《<论语>十二章》和《诫子书》,完成小题。

《论语》十二章

子曰:“学而时习之,不亦说乎?有朋自远方来,不亦乐乎?人不知而不愠,不亦君子乎?”

曾子曰:“吾日三省吾身:为人谋而不忠乎?与朋友交而不信乎?传不习乎?”

子曰:“吾十有五而志于学,三十而立,四十而不惑,五十而知天命,六十而耳顺,七十而从心所欲,不逾矩。”

子曰:“温故而知新,可以为师矣。”

子曰:“学而不思则罔,思而不学则殆。”

子曰:“贤哉,回也!一箪食,一瓢饮,在陋巷,人不堪其忧,回也不改其乐。贤哉,回也!”

子曰:“知之者不如好之者,好之者不如乐之者。”

子曰:“饭疏食,饮水,曲肱而枕之,乐亦在其中矣。不义而富且贵,于我如浮云。”

子曰:“三人行,必有我师焉。择其善者而从之,其不善者而改之。”

子在川上曰:“逝者如斯夫,不舍昼夜。”

子曰:“三军可夺帅也,匹夫不可夺志也。”

子夏曰:“博学而笃志,切问而近思,仁在其中矣。”

诫子书

    夫君子之行,静以修身,俭以养德。非淡泊无以明志,非宁静无以致远。夫学须静也,才须学也,非学无以广才,非志无以成学。淫慢则不能励精,险躁则不能治性。年与时驰,意与日去,遂成枯落,多不接世,悲守穷庐,将复何及!