Question

    Stop and listen! What do you hear? You may hear many different sounds. Some of those sounds may be noise. Noise is a loud or unwanted sound.

Noise can be caused by many kinds of machines, such as motorcycles, jet planes (喷气式飞机), farm tractors, and power motors. And, to some people, rock music is also a noise.

What happens to people who live near noisy machines or use them over a period of time? Doctors have found that these people have trouble in sleeping. And most importantly, constant (连续的) loud noise can cause loss of hearing.

Scientists use a unit of measure called a decibel(分贝) to measure the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talking measures between 40 and 65 decibels. Sounds from traffic and from some rock bands measure over 120 decibels. Noise at such high level causes the greatest hearing loss.

根据短文内容，判断下列句子是否正确，对的涂（A），错的涂（B）。

1.According to the passage, noise is all sounds that you can hear.

2.A “decibel” is a machine that makes loud noise.

3.Loud noise can help people sleep better.

4.Not all people think that rock music is a noise.

5.We can infer (推断) from the passage that noise is a serious problem.

Answer

1.B

2.B

3.B

4.A

5.A

【解析】

短文阐述了日常生活中的噪音，什么样的声音是噪音以及噪音对人的危害。

1.句意：根据本文，噪音是你听到的所有的声音。

细节题。根据第1段第4和5句“Some of those sounds may be noise. Noise is a loud or unwanted sound.”可知我们听到的一部分声音是噪音，可知本句错误。故答案为B。

2.句意：分贝是一台发出很大噪音的机器。

细节题。根据第4段第1句“Scientists use a unit of measure called a decibel(分贝) to measure the loudness of a sound.”可知分贝是表示声音强度的单位。故此句错误。答案为B。

3.句意：大的噪音可以帮助人们睡得更好。

细节题。根据第3段第1句和2句“What happens to people who live near noisy machines or use them over a period of time? Doctors have found that these people have trouble in sleeping.”可知噪音使人们睡眠困难，故此句错误。答案为B。

4.句意：并不是所有的人都认为摇滚音乐是噪音。

细节题。根据第2段第2句“And, to some people, rock music is also a noise.”可知“并不是所有的人都认为摇滚音乐是噪音。”故此句正确。答案为A。

5.句意：通过这一段我们可以推断：噪音是个很严重的问题。

推理判断题。根据第3段第2和3句“Doctors have found that these people have trouble in sleeping. And most importantly, constant (连续的) loud noise can cause loss of hearing.”以及第4段第5句“Noise at such high level causes the greatest hearing loss.”可知“噪音是个很严重的问题。”故此句话正确。答案为A。