首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、Measure damaging noises on campus. B、Make a list of campus noises. C、Figure out how to fight against noise. D、Explain the conc
A、Measure damaging noises on campus. B、Make a list of campus noises. C、Figure out how to fight against noise. D、Explain the conc
admin
2014-12-12
43
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://kaotiyun.com/show/VEq7777K
0
大学英语四级
相关试题推荐
A、Inabookpublishingcompany.B、Inacardealer’slot.C、Inthestreet.D、Inanagent’soffice.C场景推断题。对话中男士语气强烈,质问女士走路不小心;女士说
PreparingforMoreExpensiveDegreesinEnglandBalancingatightbudgetisoneofthemostdifficultaspectsofbeingastu
A、Between$400and$450.B、Between$4,800and$5,400.C、Between$2,400and$2,700.D、Between$800and$900.B该对话的关键部分是“每个月400—45
A、Helikestodohishomeworkintheevenings.B、Hedoesn’twanttoaskhisbossforanotherfavor.C、Hewantstoworkthesame
Itturnsoutthatagoodnight’srestisgoodforbusiness.One-thirdofAmericanworkersaren’tsleepingenoughtofunction
Itturnsoutthatagoodnight’srestisgoodforbusiness.One-thirdofAmericanworkersaren’tsleepingenoughtofunction
Mostparents,Isuppose,havehadtheexperienceofreadingabedtimestorytotheirchildren.Andtheymusthave【B1】______howd
A、Shewasabsentallweekowingtosickness.B、Shewasseriouslyinjuredinacaraccident.C、Shecalledtosaythatherhusband
A、Worried.B、Cheerful.C、Confident.D、Angry.A观点态度题。男士问女士的期末考试情况如何,女士回答期末考试真是一场噩梦,她已经尽力准备了,但还是不会做题。由此可知,女士对这次考试很担忧。
A、Hefeelscomfortablewiththecourse.B、Hedoesn’tlikethecourse.C、Hecan’tunderstandthecourse.D、Hedoesn’twanttoans
随机试题
痢下赤白脓血,或下鲜血黏稠,脐腹灼痛,虚坐努责,食少,心烦口干,舌质红绛少苔,脉细数。可选用
酶活力是指酶的
何经理为了销售本公司经营的医疗器械,安排公司监事刘某在与某市立医院联系销售业务过程中,按销售金额25%的比例给医院四位正、副院长回扣共计25万余元。本案中,该公司提供回扣的行为构成何罪?()
某20层办公建筑,总建筑面积为12万m2,东西长200m,南北宽30m,每层设3个防火分区,每个防火分区贯通南北向。在建筑物的中部设有10kV配电所、10.4kV变电所和弱电控制中心、综合布线主设备间,在东部和西部各设有一个10.4kV变电所和综合布线分设
基金资产其他收入包含()。
企业合并业务发生时确认的资产、负债初始计量金额与其计税基础不同所形成的应纳税暂时性差异,不确认递延所得税负债。()
学习类型
小黄家的时钟每小时慢6分钟。每天,小黄起床斤早上六点按电台报时将钟与标准时间对准,下午他回到家里,钟正好敲3点。这时的标准时间应该是几点钟?()。
2011年全国农民工总量达到25278万人,比上年增加1055万人。其中,外出农民工15863万人,增加528万人。住户中外出农民工12584万人,比上年增加320万人;举家外出农民工3279万人,增加208万人。本地农民工9415万人,增加527万人。
A、Theycanhaveabetterenvironmentforstudyandrest.B、Theycanhavemorefreedomwithoutsupervision.C、Theycanhavemore
最新回复
(
0
)