Question

【題目】 Do you often listen to music at loud volumes（音量）? You should know that this habit is bad for your hearing, according to the World Health Organization（WHO）.

Over 1 billion young people are at risk of hearing loss due to listening to loud noise for long periods of time, WHO said. Listening to music or watching a TV show at loud volumes can harm your hearing.

The United nations has standards for safe listening. It is not safe to listen to sounds that are louder than 85 decibels（dB分貝）for eight hours or 100 dB for 15 minutes. The sound of a busy road is about 85 dB and the sound of a rock concert can be about 100 dB.

Loud noise is harmful to the inner ear（內(nèi)耳）. Most of us are born with about 16,000 hair cells（聽毛細胞）in our inner ears. These cells detect sounds. However, listening to loud noise for a long time can make these cells work too hard and cause some of them to die. This is what causes hearing loss.

Some people might think that their music isn’t that loud. But this depends on where you are. For example, if you are in a noisy place like the subway, you might turn up your music too loud without realizing it. Later, when you listen to it at the same volume in a quiet place, you might feel uncomfortable.

WHO said the “safe level” for most sound is below 80 dB for up to 40 hours a week. A level of 80 dB is nearly equal to the noise of a subway.

【1】Which of the following is bad for our hearing?

A.Reading books aloud in the morning.B.Talking with friends now and then.

C.Listening to music loudly more often.D.Using smart phones for a long time.

【2】Listening to sounds louder than 85 decibels for _________ hours is not safe for our listening.

A.5B.6C.7D.8

【3】From the fourth paragraph, we can know that ________.

A.inner ear can stop from the louder noise

B.hair cells in inner ear are very important for people

C.people can hear without hair cells

D.hair cells are not something people are born with

【4】The underlined word “detect” in the fourth paragraph probably means “________”.

A.discoverB.doubtC.cancelD.remain

【5】The best title（題目）for the passage can be _________.

A.The inner earB.UN safety listening standards

C.Pay attention to protecting our hearingD.The “safe level” for sound

Answer 1

【答案】

【1】C

【2】D

【3】B

【4】A

【5】C

【解析】

文章大意：本文是一篇說明文。文中指出聽音樂時將音量調(diào)得過高這一習(xí)慣對聽力有害。同時介紹了聯(lián)合國安全聽力的標(biāo)準(zhǔn)。

【1】細節(jié)理解題。題干意為：下列哪種行為會對我們的聽力有害？根據(jù)文章開頭第一、二句“Do you often listen to music at loud volumes（音量）? You should know that this habit is bad for your hearing...”可知C項符合題意，故選C。

【2】細節(jié)理解題。題干意為：聽高于85分貝的聲音超過____小時對我們的聽力有壞處。根據(jù)第三段第二句“It is not safe to listen to sounds that are louder than 85 decibels（dB分貝）for eight hours or 100 dB for 15 minutes.”可知D項正確，八十五分貝超過八小時即有害。故選D。

【3】推理判斷題。題干意為：從第四段中我們可以知道____。第四段內(nèi)容介紹的是如果聲音過大，會引起聽毛細胞死亡，從而導(dǎo)致聽力下降。所以該段主要介紹內(nèi)耳中聽毛細胞的重要性，故選B。

【4】詞義猜測題。題干意為：第四段畫線單詞“detect”可能意為___。A項：發(fā)現(xiàn)；B項：懷疑；C項：刪除；D項：保留。根據(jù)第四段第二、三句可知此處表示聽毛細胞能夠察覺到聲音，結(jié)合選項可知與A項discover詞義相近。故選A。

【5】標(biāo)題歸納題。題干意為：這篇文章的最佳標(biāo)題是____。通過閱讀全文，可知是描述聽音量過高的音樂與噪音對聽力的危害，所以是告訴我們應(yīng)該注意保護我們的聽力，故選C。