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、The traffic next to campus. B、Horns at football games. C、Low-fiying airplanes. D、Loud equipment at the health center. B细节题。关键句
A、The traffic next to campus. B、Horns at football games. C、Low-fiying airplanes. D、Loud equipment at the health center. B细节题。关键句
admin
2010-05-26
33
问题
I am glad to see so many of you here. We’ve become really alarmed over at the health center by the number of students we are seeing, who are experiencing heating loss. First I want to go over some basics about hearing, then we can take a look at our school environment and see if we can figure out some ways to protect hearing. The leading cause of preventable heating 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 noise like traffic on a busy street. But anything louder than 80 decibels, esp. with continuous exposure, may 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. If you pass along this hand-out, we can 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 fight behind you. Now, let’ s try to generate a list of damaging noises.
选项
A、The traffic next to campus.
B、Horns at football games.
C、Low-fiying airplanes.
D、Loud equipment at the health center.
答案
B
解析
细节题。关键句是They(指those horns)are really dangerous if blown right behind you.如果在你身后突然响起来,这些号角声是(使听力受损的)真正的危险。
转载请注明原文地址:https://kaotiyun.com/show/g8V7777K
0
大学英语四级
相关试题推荐
A、Answeringthetelephone.B、Typinginvoices.C、Preparingpricelists.D、Operatingthemachines.C
Despitethestagnancyoftheeconomy,high-technologycompaniesarestillcryingoutforskilledworkers.TheInformationTechno
A、Shecanusehiscar.B、Shecanborrowsomeoneelse’scaC、Shecan’tborrowhiscar.D、Shemustgethercarfixed.C
A、Thewomanblamesthemanforhisabsence.B、ThewomanthinksthateverythingwasallrightC、Thewomanthanksthemanforhis
A、HeiswaitingforProfessorJohnsontohaveaninterview.B、HeiswaitingforProfessorJohnsontotakethehomework.C、Heis
AnInterviewwithAmericanFuturistPeterSchwartzMr.Yang,presenteroftheCCTVEnglishDialogueProgrammePeterSc
A、Church.B、Artmuseum.C、BuckinghamPalace.D、Localpubs.D文章开篇便指出,当地的酒吧是领略英国传统文化的最佳去处,故答案选D是毫无疑问的。
Wheneveryouseetheoldfilm,evenone【M1】______madetenyearsbefore,youcannothelpbeing
Socialchangesmadeadifference:Peopleusedto____________(从父母或祖父母那里寻求意见),nowtheygotobooks.
随机试题
胎儿急性宫内窘迫护理哪项不妥:
为了保证工地试验室试验数据的客观准确,要求()。
按建设项目的市场性能可将固定资产投资分为(),
下列关于税务登记管理的描述正确的是()。
【2014年河南三门峡】课程改革倡导()三种学习方式。
材料:
把下列各数0.73,20.1,log40.7按从大到小的顺序排列()
学校教育
Venicemaystillbeinperil.However,thecityknownasLaSerenissimaisnolongersinking,butrising.Anewstudyfrome
Dependingonwhichplayeryouask,the"Fevernova"ballthatsportsequipmentmakerAdidassaysprovidestheultimatesoccerexp
最新回复
(
0
)