首页
登录
职称英语
[originaltext] I’m glad to see so many of you here. We’ve become really alar
[originaltext] I’m glad to see so many of you here. We’ve become really alar
游客
2023-07-02
39
管理
问题
I’m glad to see so many of you here. We’ve become really alarmed over the health center by the number of students who are experiencing hearing loss. First, I want to go over some basics about hearing, and then we can take a look at our school environment and see if we can figure out some ways to protect hearing.[16]The leading cause of’preyentable hearing loss is excessive noise. Too much moderate noise for a long time, or some types of intense noise for even a short time can damage hearing. Loudness is measured in units called decibels. One decibel is the lowest sound that the average person can hear. Sounds up to 80 decibels generally aren’t harmful, that’s like traffic on a busy street.[17]But anything louder than 80 decibels, especially with continuous exposure, many eventually hurt your hearing. Once you’re up to around 140 decibels, that’s like a jet plane taking off, then you might even feel pain in your ears. And pains are sure sign that your hearing is at risk. Even one exposure to a really loud noise at close range can cause hearing loss. So what you need to do is limit your exposure to harmful levels. Now, take a look at the decibel level of some common campus sounds. Notice how loud those horns are that people take to football games. They are really dangerous if blown right behind you. Now, let’s try to generate a list of damaging noises.
16. What is the main cause of hearing loss?
17. What does the speaker say about harmful noise?
18. What does the speaker suggest to protect hearing?
19. What will the speaker probably do next?
选项
A、Measure damaging noises on campus.
B、Make a list of campus noises.
C、Figure out how to fight against noise.
D、Explain the concept of noise.
答案
B
解析
在录音的最后,说话者提到“让我们列出一个有害噪音的清单吧”,且结合之前提到的校园噪音可知,此处是指列出校园内的噪音清单,故B为答案。
转载请注明原文地址:https://tihaiku.com/zcyy/2802108.html
相关试题推荐
[originaltext]M:Ireallydon’tknowwhattodothissummer.Ican’taffordto
[originaltext]M:WhendoesthenextbusleaveforNewYork?W:Busesleavefor
[originaltext]M:WhendoesthenextbusleaveforNewYork?W:Busesleavefor
[originaltext]M:WhendoesthenextbusleaveforNewYork?W:Busesleavefor
[originaltext]M:WhendoesthenextbusleaveforNewYork?W:Busesleavefor
[originaltext]M:WhendoesthenextbusleaveforNewYork?W:Busesleavefor
[originaltext]WhenIraqtroopsblewuphundredsofKuwaitioilwellsatthe
[originaltext]WhenIraqtroopsblewuphundredsofKuwaitioilwellsatthe
[originaltext]WhenIraqtroopsblewuphundredsofKuwaitioilwellsatthe
[originaltext]W:Well,John,howwasyourvacation?Didyouvisitalltheplace
随机试题
Howoftenonehearschildrenwishingtheyweregrownup,andoldpeoplewish
Forthispart,youareallowed30minutestowriteashortessayentitledOnCol
[originaltext]W:Themarketisbecomingreallymoreandmorecompetitive.M:Ex
直线型组织结构的特点有()。A.权责分明 B.指令唯一 C.横向协调难度
下列细菌性食物中毒中可引起肝肾损伤的是()。A.沙门菌 B.大肠杆菌
微课在中小学教学中应用广泛。下列关于微课的说法,正确的是( )。A.微课选题-
属于腑,循行分布于上肢外侧和头面部的是A.足三阳经 B.足三阴经 C.手三阳
不发生癌的组织是 A.皮肤附件B.肾上腺C.子宫内膜 D.甲状旁腺E.软骨组
(2017年真题)下列关于期货投资者保障基金的管理和监管的说法中,正确的有(
某公司计划3年以后购买一台200万元的机械设备,拟从银行存款中提取,银行
最新回复
(
0
)