<题目>B
一些年轻人戴耳机听音乐一听就是数小时,而且把声音放得很大,无论在行走或做功课时都不愿意取下,甚至睡前也戴着。这可是以损害听力为代价的。
The World Health Organization (WHO) is worried that 1.1 billion teenagers and people in their twenties and early thirties are damaging their hearing by listening to loud music. It says nearly half the young people in middle- and high-income countries risk hearing loss because of the unsafe use of personal music players, including smartphones. Loud music in nightclubs, bars and at sporting events also increases the risk. The WHO recommends a safe limit of listening to music for just one hour a day. The WHO director for injury prevention, Dr Etienne Krug, said, "What we're trying to do is raise awareness of an issue that is not talked about enough." He said hearing loss is easily preventable.
Dr Krug said keeping the volume down and limiting the use of personal audio devices to less than one hour a day would save a lot of people's hearing. However, he also said that even an hour can be too much if the volume is too loud. Ralph Holme, a biomedical researcher, explained how loud noise can damage ears. He said, "Loud sounds damage your hearing by killing off thousands of little hair cells in the inner ear. The cells detect different pitches of sound through vibration... but they are easily broken and if they vibrate too much because of loud sounds for too long, they get damaged and die." He warned, "The problem is they don't grow back and the ear can no longer detect sound."
WORD BOX ＞＞
| injury | ['ɪndʒəri] | n. 损伤;伤害 | awareness | [ə'weənəs] | n. 意识 |
| :----- | :--------- | :----------- | :-------- | :---------- | :------ |
| issue | ['ɪʃuː] | n. 问题 | volume | ['vɒljuːm] | n. 音量 |
| biomedical | [ˌbaɪəʊ'medɪkl] | n. 生物医学的 | detect | [dɪ'tekt] | vt. 发现;侦察出 |
| vibration | [vaɪ'breɪʃn] | n. 振动 | | | |
COMPREHENSION CHECK UP ＞＞
Ⅰ. Tell whether the following sentences are true (T) or false (F).
(
F
) 1. Over 1.1 billion teenagers risk hearing loss because of loud music.
(
F
) 2. Half the young people in poorer countries risk hearing loss.
(
T
) 3. Loud music at sporting events increases the risk of hearing loss.
(
F
) 4. The WHO said too many people are talking about hearing loss.
(
F
) 5. A doctor said an hour of music a day is OK even at high volumes.
(
T
) 6. Loud noise kills tiny hair cells inside our ears.
(
T
) 7. The hair cells in our ears can break very easily.
(
T
) 8. Once a hair cell dies, it can never grow back.
Ⅱ. Answer the following questions.
1. What did Dr Krug say he was trying to raise?
Awareness of the issue of hearing loss.
2. What is Ralph Holme's job?
A biomedical researcher.
3. How will you change your listening habits after reading this article?
I will keep the volume down and limit the use of personal audio devices to less than one hour a day.
