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、Moderate noise is harmless. B、Sound above 80 decibels can hurt hearing. C、Noise can make people feel stressed. D、There is no n
A、Moderate noise is harmless. B、Sound above 80 decibels can hurt hearing. C、Noise can make people feel stressed. D、There is no n
admin
2016-05-26
41
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、Moderate noise is harmless.
B、Sound above 80 decibels can hurt hearing.
C、Noise can make people feel stressed.
D、There is no noise on campus.
答案
B
解析
录音提到,任何高于80分贝的声音,尤其是持续暴露在此种声音之下,最终会对听力造成损害,B所述与此一致,故为正确答案。
转载请注明原文地址:https://jikaoti.com/ti/SepFFFFM
0
大学英语四级
相关试题推荐
Kodak’sdecisiontofileforbankruptcyprotectionisasad,thoughnotunexpectedturningpointforaleadingAmericancorpora
DefinitionsofObesityA)Howdoesonedefinewhenapersonisconsideredtobeobeseandnotjustsomewhatoverweight?Height-we
AnimalsontheMoveA)Itlookedlikeascenefrom"Jaws"butwithoutthedramaticmusic.Ahugesharkwaslowlyswimmingthrough
Thereisnothinglikethesuggestionofacancerrisktoscareaparent,especiallyoneoftheover-educated,eco-conscioustype
HowDoYouSeeDiversity?A)Asamanager,Tiffanyisresponsibleforinterviewingapplicantsforsomeofthepositionswithher
WriteacompositionentitledHowtoProtectPrivacyonInternetYoushouldwriteatleast120wordsbutnomorethan180wordsa
A、Readingitsadsinthenewspapers.B、Callingitspersonneldepartment.C、Contactingitsmanager.D、Searchingitswebsite.D
HowtoUseaLibraryA)You’redrivingyourcarhomefromworkorschool.Andsomethinggoeswrong.Theenginestallsoutatligh
A、Hewillpostponethetrip.B、Hewillmarrythewoman.C、Hewillcookdinnerforthewoman.D、Hewilltaketennislessons.D
随机试题
下列诗句作者是杜甫的是()。
Inanoldtownlivedamerchant.Heearnedhugeprofitsbyfairmeansandfoul.Withmoreprofitsflowingin,hebecamemoreand
肾后性梗阻导致的肾功能改变,下列说法中错误的是
对急危重病人进行抢救的道德要求不包括
肝郁化火所致的不寐,治宜
关于法律责任的本质,以下说法正确的是哪一项?()
编制时间定额是在拟订()的基础上制定的。
1.背景某施工单位对某一省会新建机场的目视助航工程投标,标书中施工方法和施工技术措施中写出了施工测量、电缆保护管施工、电缆排管和人孔井施工、电缆敷设和隔离变压器安装,助航灯具安装;接地极施工;非标结构制作安装;变电站土建施工方案和主要分项工程施工方法和技
下列哪一项不属于客户交易终端信息?()
打开工作簿文件Excel.xlsx。将Sheet1工作表的A1:E1单元格合并为一个单元格,内容水平居中;计算“总产量(吨)”“总产量排名”(利用RANK函数,降序);利用条件格式“数据条”下“实心填充”中的“蓝色数据条”修饰93:D9单元格区域。
最新回复
(
0
)