首页
登录
职称英语
After going over some basic knowledge about hearing, the teacher will lead the s
After going over some basic knowledge about hearing, the teacher will lead the s
游客
2023-11-02
63
管理
问题
After going over some basic knowledge about hearing, the teacher will lead the students to______. [br]
I’m glad to see so many of you here. We’ve become really alarmed over the health center by the number of students we are seeing, who are experiencing hearing loss.(7)First, I want to go over some basic knowledge about hearing. Then we can take a look at our school environment and see if we can figure out some ways to protect hearing.(8)The leading cause of preventable 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.(9)Sounds up to 80 decibels generally aren’t harmful. That’s noise like traffic on a busy street. But anything louder than 80 decibels, especially with continuous exposure, may eventually hurt your hearing.(10)Once you are 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’s at risk. Even one exposure to a really loud noise at close range can cause hearing loss. So what you need to do is to limit your exposure to harmful levels. If you pass along this handout, 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 right behind you. Now, let’s try to generate a list of damaging noises.
选项
A、suffer from hearing loss
B、feel pain in your ears
C、feel normal
D、faint
答案
B
解析
语义理解题。由句(10)可知,暴露在140分贝的噪音环境中,你会感觉耳朵疼痛;但并不至于失聪或晕倒。所以答案为B。
转载请注明原文地址:https://tihaiku.com/zcyy/3151585.html
相关试题推荐
Theydidtheexperiment______theirchemistryteacherhadinstructed.A、asB、thou
Afterthreehoursofquestioningthesuspectbrokedownand______.A、acknowledge
Theboywas______tospeaklouderintheclasswhenansweringtheteacher’sque
TheRoll-callsystemhasbeencommonlyadoptedbycollegeteacherstocheck
Aftergoingoversomebasicknowledgeabouthearing,theteacherwillleadthes
Aftergoingoversomebasicknowledgeabouthearing,theteacherwillleadthes
Aftergoingoversomebasicknowledgeabouthearing,theteacherwillleadthes
[A]acknowledged[B]conducted[C]consideration[D]convert[E]establishment[F]involve
[A]acknowledged[B]conducted[C]consideration[D]convert[E]establishment[F]involve
[A]acknowledged[B]conducted[C]consideration[D]convert[E]establishment[F]involve
随机试题
Thespeakersaremainlydiscusshowdifferentkindsofpepperareproduced.[br]
Manypeoplehavediscoveredthathobbiescanbeprofitableaswellas【T1】____
Thebenefitstocitizensofmodernindustrialsocietymayhave【C1】______some
历史记录包括()A.火警记录 B.设备故障记录 C.反馈记录 D.气灭记
settingredundantcomponentsinsubsyste
儿童不把准则看成是不可改变的,而把它看作是同伴间共同约定的。该儿童的品德发展属于
A.对子宫体和子宫颈均有抑制作用 B.中枢兴奋作用 C.利尿作用和舒张血管作
2020年,F省全年粮食产量502.32万吨,比上年增加8.42万吨,增长1.7
肾功能衰竭 A.pH值下降B.Pa2O2下降C.两者均有D.两者均无
填筑路堤宜按()的工艺组织施工。A.两阶段、三区段、八流程 B.三阶段、四区
最新回复
(
0
)