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、They were frightened and distressed. B、They swam away when the speaker was turned on. C、They swam closer to "examine" the spea
A、They were frightened and distressed. B、They swam away when the speaker was turned on. C、They swam closer to "examine" the spea
admin
2016-03-31
43
问题
A team of scientists recently began a project to measure the effects of loud noises on sea animals. If the sounds don’t harm the animals, then the researchers can go ahead with a plan to transmit sound waves through the Pacific Ocean to take the earth’s temperature. Sound travels faster through warm water than cold water. By analyzing the speed of sound through the ocean over a time, the scientists will be able to determine if our planet is warming up. The experiment was nearly cancelled more than a year ago because environmental groups feared that the sound would confuse or harm the sea animals. So, scientists are conducting tests on the animals first. The researchers lowered a loud speaker that emits low frequency sound about 1000 meters beneath the ocean. Scientists at the site transmit sound waves into the ocean. Radio transmitters attached to some of the sea animals help the researches keep track of the animals movements. If sea animals are distressed by the sounds, they would swim away from the speakers. So far, there aren’t any signs that the animals are being harmed. Researchers at the site noticed that large numbers of sea animals swim near the speaker whether it was turned on or off, but it is still too soon to know for sure, the scientists admit. The test will continue through September. if If all goes well, they say, fwe can begin measuring temperature changes on our planet.
Questions 23 to 25 are based on the passage you have just heard.
23. What is the purpose of analyzing the speed of sound through the Pacific Ocean?
24. What was the reaction of the sea animals to the sound tests?
25. For what purpose were radio transmitters used?
选项
A、They were frightened and distressed.
B、They swam away when the speaker was turned on.
C、They swam closer to "examine" the speaker when it was turned off.
D、They didn’t seem to be frightened and kept swimming near the speaker.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/7xL7777K
0
大学英语六级
相关试题推荐
AVerySpecialDogA)Itis8:15a.m.AflightlandsatMelbourne’sTullamarineInternationalAirport.Severalhundredpiecesof
TheBirthofScientificEnglishA)Worldscienceisdominatedtodaybyasmallnumberoflanguages,includingJapanese,Germanan
HowMarketersTargetKidsA)Kidsrepresentanimportantdemographictomarketersbecausetheyhavetheirownpurchasingpower,t
HowMarketersTargetKidsA)Kidsrepresentanimportantdemographictomarketersbecausetheyhavetheirownpurchasingpower,t
TryingtooHardCanSlowNewLanguageDevelopmentA)Neuroscientistshavelongobservedthatlearningalanguagepresentsadiffe
TheNatureandAimsofArchaeologyIntroductionA)Archaeologyispartlythediscoveryofthetreasuresofthepast,partlythem
ItispossibleforstudentstoobtainadvanceddegreesinEnglishwhileknowinglittleornothingabouttraditionalscholarlyme
ItispossibleforstudentstoobtainadvanceddegreesinEnglishwhileknowinglittleornothingabouttraditionalscholarlyme
HIV&AIDS[A]AIDShasnowsurpassedtheBlackDeathonitscoursetobecometheworstpandemicinhumanhistory.Attheendof
A、Thewomandoesn’tthinkitwastheman’sfault.B、Thewomanthinksthateverythingwasallright.C、Thewomanthanksthemanf
随机试题
下列各项中,不属于内部控制要素的是()
患儿,1岁,不会走,不会叫爸爸、妈妈。查体:眼距宽,鼻梁宽平,唇厚,舌大,反应差,皮肤粗糙,脐疝,下部量短。为确诊,应完善以下哪项检查
A.耐胆盐革兰阴性菌B.白色念球菌C.大肠埃希菌D.梭菌E.金黄色葡萄球菌除另有规定外,皮肤给药制剂不得检出的是()。
下列发生的索赔事件,属于不可预见的不利条件索赔的是()。
深圳证券交易所会员通过交易单元从事证券交易业务,应当向()交纳交易单元使用费、流速费与流量费等费用。
与求助者会谈时,错误的说法是()。
加德纳的多元智力理论认为人的智力包含哪些类型?
全心全意依靠工人阶级,关键在于
程序、进程和线程3个概念之间的关系是()。
NewYork’sWCBSputsitinawaythatjustcan’tbebetterexpressed:"Itwasanaccidentwaitingtohappen."15-year-oldAl
最新回复
(
0
)