Question

阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

Senior citizens are the first to come to our mind when you think of hearing loss,  but in a recent report,  hearing professionals worry teenagers will soon outnumber aging adults 1. it comes to living with hearing loss.

The rise in popularity of personal audio devices from iPods to smart phones has had dangerous effect on the ears of those who use them most,  teenagers! A research 2. (conduct) by the World Health Organization finds that nearly 50% of teens 3. (fall) into the habit of exposing themselves to unsafe levels of sound so far.

A sound is considered unsafe when it goes beyond 85 decibels (分贝). At that level, it takes just 8 hours of listening over your lifetime to cause damage. The louder the sound is, the 4. (little) time it takes to cause damage. Because hearing loss is 5. (typical) considered a health problem for the elderly, it is difficult to convince already stubborn teenagers that they really are doing damage 6. their ears.

Young adults 7. have been exposed to loud noise over a period of time may have some hearing loss symptoms. Their 8. (able) to learn is compromised, and they may have difficulty developing social skills.

In an effort to help teens better protect their hearing, we suggest 9. (set) volume limits on personal audio devices. 10. is also good to limit the amount of time exposed to noise and to take listening breaks to give the ears a rest.

Answer

1.when

2.conducted

3.have fallen

4.less

5.typically

6.to

7.who/that

8.ability

9.setting

10.It

【解析】

本文属于说明文。短文介绍了青少年由于长时间听过高音量的设备，因而听力损失的情况越来越严重， 有必要采取措施。

1.考查固定句型。句意：当提到听力丧失时，我们首先想到的是老年人，但在最近的一份报告中，听力专家担心，就听力丧失而言，青少年的数量将很快超过老年人。本句为句型when it comes to sth当谈及某事，故填when。

2.考查非谓语动词。句意：世界卫生组织做的一份调查发现接近一半的青少年已经养成了把自己暴露在过大音量的环境中。分析句子可知，conduct作定语修饰research，与其为动宾关系，故填过去分词形式conducted。

3.考查动词时态和语态。句意：世界卫生组织做的一份调查发现接近一半的青少年已经养成了把自己暴露在过大音量的环境中。由于有so far修饰，描述过去动作对现在的影响，故用现在完成时，主语为teens，故用have fallen。fall into the habit of 养成…的习惯。故填have fallen。

4.考查比较级。句意：音量越大，那么造成损害的时间就越短。本句为结构the +比较级+句子，the+比较级+句子，故填less。

5.考查副词。句意：听力损失是一个典型的老年人问题，因此很难说服固执的青少年他们正在损害自己的耳朵。修饰动词用副词，故填typically。

6.考查介词。句意：听力损失是一个典型的老年人问题，因此很难说服顽固青少年他们正在损害自己的耳朵。本句为固定短语do damage to sth 损害某物，故用to。

7.考查定语从句。句意：在暴露于过大音量一段时间后，青少年会出现一些听力损失的症状。分析句子可知，have been exposed to loud noise over a period of time作定语从句修饰young adults ，从句缺少主语，故填关系代词who或者that。

8.考查名词。句意：他们学习的能力就会受到影响。由于代词their修饰，故用名词ability。故填ability。

9.考查非谓语动词。句意：为了更好保护青少年的听力，我建议对播放设备进行音量限制。本句为suggest的用法suggest doing sth 建议做某事，故填setting。

10.考查it。句意：这不仅可以减少被暴露在过高音量的时间，也可以让耳朵休息一下。本句为it作形式主语，真正主语为后面的不定式，故填It。