Question

AC/DC have postponed their US tour after singer Brian Johnson was warned by doctors that he was at risk of “total hearing loss”. This is unsurprising, given the decades that the Australian band has been pumping out the hard rock decibels(分贝). But deafness isn’t only a concern for rock musicians. In recent years it has become clear that anyone around music a lot has reason to be equally worried.

   When exposed to music, risk to hearing arises from a combination of how loud the sound is and how long you’re exposed to it. If you visit a nightclub that is thumping out (响亮地奏出) music on the dance floor at 100 dB, then after only 10-15 minutes the exposure is potentially damaging. In a quieter part of the club, but where the music is still loud enough that you have to shout at your friends, then you could be there for a couple of hours before having to worry about your hearing. Of course music frequently exceeds（超过） 80-85 dB, but what counts most in assessing the risk to hearing is the average exposure.

   Exposure to high noise levels often causes temporary deafness — something many people have experienced after going to a nightclub. While hearing usually recovers after a few hours or days, repeated loud exposure leads to permanent hearing damage. Initially, this damage is subtle and unlikely to be noticed by the listener. Problems only becomes significant in middle age when the noise-induced hearing loss combines with the natural loss of hearing due to ageing.

   Improved technology means that the number of musicians having to give up performing could decrease, but student musicians need to be educated about the dangers of noise-caused hearing loss. The increasing use of headphones will also work against this — for musicians and everyone else. Unless people are careful with the volume（音量） level on their portable music players, hearing loss caused by music will increase.

（http://theconversation.com/highway-to-hearing-hell-musicians-and-the-danger-of-deafness-55983）

1.What does Paragraph 1 mainly aim to tell us?

A. Musicians tend to be victims of music.

B. It is helpful to check hearing regularly.

C. Being with music isn’t necessarily beneficial.

D. Deafness has become musicians’ major concern.

2.What’s the most important factor considered in the assessment of risk music has to hearing?

A. Its decibel.

B. The average exposure.

C. Its playing environment.

D. The listener’s sensitivity to sound.

3.People who go to nightclubs frequently tend to ________.

A. suffer from temporary headache

B. have their hearing damaged forever

C. experience natural hearing loss earlier

D. have a clear sense of their hearing damage

4.Which of the following best reflects the author’s opinion?

A. Improving technology can prevent hearing damage.

B. Students musicians are main sufferers of hearing loss.

C. Using headphones helps reduce hearing loss to a degree.

D. We can never be too careful with the volume level of music.

Answer

1.C

2.B

3.B

4.D

【解析】

试题分析：作者通过具体事例告诉我们音量太大会对我们的听力造成损害，提醒我们时刻注意音乐的音量，减少对听力的伤害。

1.，经常听音乐对听力有坏处，故选C。

2.，评估听力风险的主要因素是对噪音的平均接触量，故选B。

3.第二段When exposed to music, risk to hearing arises from a combination of how loud the sound is and how long you’re exposed to it.及这一段的其他内容可推知，经常去夜总会的人听力可能会永久受损，故选B。

4.D。

考点：考查健康类短文阅读。

【名师点睛】

主旨大意题的解题思路与应试技巧

做这类题时常用略读法。快速阅读文章找出各个段落的主题句。把各个段落的主题句联系起来着眼于全文结构安排，了解文章的重心，就能概括出文章的中心。文章的标题是中心思想最精炼的表达形式，选择的标题意义范围要能涵盖全文，不能太大也不能太小。命题者在出这类题时，常常利用生活常识编造干扰项，把文中的细节当主旨，利用局部信息编造干扰项，编制超出文章范围的标题或不能涵盖文章中心意义的标题来考查考生的理解程度，考生要特别留意。

概括主旨的方法是：先看首尾或各段开头，再看全文找主题句，若无明显主题句，就通过关键词句来概括(如议论文中寻找表达作者观点态度的词句，记叙文寻找概括情节和中心的动词或反映人物特点的形容词。)文中出现两种或两种以上的不同观点时，务必牢记作者的观点才是体现全文中心。此时，要注意一些转折词，如but, yet, however, although, in spite of, by contrast, on the contrary等。当文章中表示相反的观点时，往往用到这些词。答题时要弄清哪个是作者的观点，排除迷惑性信息，准确归纳主旨大意。