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、Do medical checkup regularly. B、Avoid making noise. C、Limit exposure to harmful noise. D、Live in the place without noises. C录音
A、Do medical checkup regularly. B、Avoid making noise. C、Limit exposure to harmful noise. D、Live in the place without noises. C录音
admin
2016-05-26
115
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、Do medical checkup regularly.
B、Avoid making noise.
C、Limit exposure to harmful noise.
D、Live in the place without noises.
答案
C
解析
录音提到,对于噪音,我们需要做的就是限制自己暴露在达到有害程度的噪音下(limit your exposure to harmful levels),C所说与此一致,故为答案。
转载请注明原文地址:https://kaotiyun.com/show/TzY7777K
0
大学英语四级
相关试题推荐
ResearcherssayextravitaminEfedtoturkeysappearstohelpcontrolinfectionsfromlisteria(李氏杆菌).Peoplewhoeatfoodsthat
InBritainandothercountries,youngpeoplesometimestakea"gapyear",ayearoffbetweenhighschoolandcollege.Thisidea
About2percentofAmericanstudentsarenowtaughtathome.Educatorsareconfusedabouthowthisgrowingpracticeshouldbere
With10,600bicyclesincirculation,Pariscityofficialsarehopingtheprogramwillprovidepeoplewithmoreenvironmentallyf
HowDoYouSeeDiversity?A)Asamanager,Tiffanyisresponsibleforinterviewingapplicantsforsomeofthepositionswithher
Therearepeoplewhoareespeciallyattractedtothenotionof"climbingtheladder"soastoincreasetheirstatus,financialp
A、Hedoesn’tenjoybusinesstripsasmuchasheusedto.B、Hedoesn’tthinkheiscapableofdoingthejob.C、Hethinksthepay
Students’pressuresometimescomesfromtheirparents.Mostparentsarewell【B1】_______,butsomeofthemaren’tveryhelpfulwi
A、Plantsometreesoncampus.B、Organizeapicnic.C、Buildaparkinglot.D、Protectthenaturalbeautyoncampus.D
A、Checkthetimetable.B、Gototherailwaystationearlier.C、Travelonalatertrain.D、Cancelthetripearlier.C女士说恐怕她们要赶不上三点
随机试题
Weshould________thegoalsanddesiresoftheclientsandtheirfamilymembers.
阅读《拣麦穗》中的文字:卖灶糖的老汉有多大年纪了?我不知道。他脸上的皱纹一道挨着一道,顺着眉毛弯向两个太阳穴,又顺着腮帮弯向嘴角。那些皱纹,给他的脸上增添了许多慈祥的笑意。当他挑着担子赶路的时候,他那剃得像半个葫芦样的后脑勺上的长长的白发,便随着
股票的发行价格通常有四种确定方式。一是按面值发行,二是市价发行,三是折价发行,四是按股票票面价格和市场价格的中间价发行。()
城市桥梁工程大体积混凝土浇筑与振捣的方法有( )。
下列关于期货公司的交易软件、结算软件供应商的表述,正确的是()。
同一企业不同时期发生的相同或者相似的交易或者事项,必须采用一致的会计政策,一致的会计核算方法和程序,这是会计信息必须具有()的要求。
公共产品的特征包括()。
一定量的理想气体,由平衡状态A无论经过什么过程变到另一平衡状态B(pA=pB),则系统必然()。
机体调节体液平衡主要通过的系统或器官是
现阶段,我国经济发展新常态主要的特点有()
最新回复
(
0
)