首页
登录
职称英语
[originaltext] A team of scientists recently began a project to measure the e
[originaltext] A team of scientists recently began a project to measure the e
游客
2023-08-12
18
管理
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. (12)By analyzing the speed of sound through the ocean over time, the scientists will be able to determine if our planet is warming up. (13) The experiment was nearly cancelled more than a year ago because environmental groups fear that the sound will confuse or harm sea animals. So scientists are conducting tests on the animals first. The researchers lowered a loud speaker that emits low frequency sound about 1 000 meters beneath the ocean. (14) Scientists at the site transmit sound waves into the ocean. Radio transmitters attached to some of the sea animals help the researchers 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 (15)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 tests will continue through September. "If all goes well," they say, "we can begin measuring temperature changes on our planet."
Questions 12 to 15 are based on the passage you have just heard.
12. What is the purpose of analyzing the speed of sound through the Pacific Ocean?
13. Why was the experiment nearly cancelled?
14. For what purpose were radio transmitters used?
15. What was the reaction of the sea animals in the sound tests?
选项
A、The sound of waves is too noisy.
B、The experiment may pollute the water.
C、The sound of waves may harm sea animals.
D、The sea animals may disturb the experiment.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2918629.html
相关试题推荐
[originaltext]LadiesandGentlemen,Neverbeforehavewehadsomanydiffer
[originaltext]Whatkeepsushealthyandhappyaswegothroughlife?Ifyou
[originaltext]Whatkeepsushealthyandhappyaswegothroughlife?Ifyou
[originaltext]Moderator:Hello,ladiesandgentleman.Itgivesmegreatple
[originaltext]Moderator:Hello,ladiesandgentleman.Itgivesmegreatple
[originaltext]IfyouareinanymajorcityinAmerica,thechancesarehigh
[originaltext]IfyouareinanymajorcityinAmerica,thechancesarehigh
[originaltext]IfyouareinanymajorcityinAmerica,thechancesarehigh
[originaltext]M:Hi,Lynn.Isawyouatregistrationyesterday.Isailedright
[originaltext]M:Hi,Lynn.Isawyouatregistrationyesterday.Isailedright
随机试题
IntheUnitedStates,thefirstdaynurserywasopenedin1854.Nurserieswe
WhereisthewomangettinginformationabouttheOperaHousetour?[br][origin
安全生产检查的最终目的是()。A.对“物的安全因素”进行检查 B.对“人的安
ARF多尿期,多尿的发生机制是A.肾小球滤过功能障碍 B.新生肾小管功能不成熟
患者女性,16岁,支气管哮喘发作1小时,烦躁,紫绀,呼吸26次/分,心率120次
随着消费者需求日益多样化,消费心理也越发多元,一款产品要想打动消费者,获得消费者
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
下列属于存款业务的基本法律要求有()。 A.未经银行业监督管理机构批准,任何
我国所有单位包括行政、事业、企业单位的会计确认、计量、记录和报告均应以权责发生制
下列各种作业场所中,其照明电源电压可用36V的有( )。A.高温场所 B.人
最新回复
(
0
)