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
2016-04-26
50
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/Xue7777K
0
大学英语四级
相关试题推荐
A、Theybothattractscientists’attention.B、Theybothcanbequitechallenging.C、Theyareboththought-provoking.D、Theyboth
A、Lackofmoisture.B、Exposuretoradiation.C、Lackofsleep.D、Misuseofmedicine.A女士说当你眨眼,闭眼睁眼的动作有助于滋润眼睛,而缺乏水分会导致眼睛疼痛。A可直接从对话
Papermoneyisusedeverydaybutpeopledonotoftenthinkofmoneyasjustpaper.Thisisbecausepeopleagreethatithasval
Somefishcanswiminwaterbelow0°C,lowenoughtofreezethebloodofmostcreatures.However,somefishandinsectscanstay
Somefishcanswiminwaterbelow0°C,lowenoughtofreezethebloodofmostcreatures.However,somefishandinsectscanstay
Kodak’sdecisiontofileforbankruptcyprotectionisasad,thoughnotunexpectedturningpointforaleadingAmericancorpora
BeautyandBodyImageintheMediaA)Imagesoffemalebodiesareeverywhere.Women—andtheirbodyparts—selleverythingfromfoo
门神(theDoorGod),是旧时中国农历新年贴于门上的一种画类。门神画中的门神,本身是中国道教徒(Taoists)和民众共同信仰的守卫门户的神灵,古时人们常常将其神像贴于门上,用以驱邪避鬼(driveawaydemons),以助卫家宅、保平安、
HowtoUseaLibraryA)You’redrivingyourcarhomefromworkorschool.Andsomethinggoeswrong.Theenginestallsoutatligh
A、Thisepisodeisnotsoexcellent.B、Thepreviousepisodeisbetter.C、Thisepisodeisbetter.D、Thepreviousepisodeisjusts
随机试题
You’veprobablyheardthatouroceanshavebecomeaplasticsoup.Butinfact,ofalltheplasticthatentersEarth’soceanseac
下列选项中,不符合会计凭证内部控制要求的是()
在夏季使用农药出现中毒症状,在急诊室进行处理时,首先应明确诊断为
某公路工程施工总承包一级企业承包了长2650m的公路隧道施工任务,该隧道穿越的岩层主要由泥岩和砂岩组成。施工中有如下事件发生:事件1:施工单位采用了新奥法施工,复合式衬砌。事件2:项目部相关技术人员认为,新奥法包括全断面法、台阶法、环形开挖留核心土法
[资料二]甲房地产公司2010年至2014年发生业务如下:(1)甲房地产公司于2010年1月1日将一幢商品房对外出租并采用公允价值模式计量,租期为3年,每年12月31日收取租金200万元,出租时,该幢商品房的成本为5000万元,公允价
下肢肌肉中快肌纤维占优势的人,较适宜从事()。
显示器分辨率指的是整屏可显示像素的多少,这与屏幕的尺寸和点距离密切相关。例如15英寸的显示器,水平和垂直显示的实际尺寸大约为280mm×210mm,当点距是0.28mm时,其分辨率大约是______。
Accordingtothenews,Francewasstronglycriticizedfor______.
SinceIboughtacomputerlastmonth,anewworldhasopenedupbeforeme,aworldthatreachesfarbeyondmyimmediatesurroun
Itisnot,byanymeans,theworld’soldestcompany.ThereareJapanesehotelsdatingbacktothe8thcentury,Germanbreweries
最新回复
(
0
)