首页
登录
职称英语
[originaltext] A team of scientists recently began a project to measure the
[originaltext] A team of scientists recently began a project to measure the
游客
2023-08-25
13
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. 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、To attract more sea animals to the testing site.
B、To drive dangerous sea animals away from the testing site.
C、To help trace the sea animals being tested.
D、To determine how sea animals communicate with each other.
答案
C
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2955952.html
相关试题推荐
[originaltext]M:Hi,Queenie,howareyouenjoyingyourselfatuniversity?W:
[originaltext]M:Hi,Queenie,howareyouenjoyingyourselfatuniversity?W:
[originaltext]W:2millionhighschoolseniorsaregearingupthisfalltoappl
[originaltext]W:2millionhighschoolseniorsaregearingupthisfalltoappl
[originaltext]W:2millionhighschoolseniorsaregearingupthisfalltoappl
[originaltext]W:Idon’tunderstandhowtheinventorearnsmoneyfromtheinven
[originaltext]W:Idon’tunderstandhowtheinventorearnsmoneyfromtheinven
[originaltext]W:Goodmorning,class.TodayIthoughtwewouldtalkaboutsomet
[originaltext]M:Hi,Mary.Doyouwanttostartwritingalabreportafterwef
[originaltext]W:ProfessorJones,MayIinterruptyouforamoment?M:Ofcours
随机试题
NeartheborderbetweenFloridaandGeorgia,livesararetreecalledastink
Thetwocountries______(中断了外交关系)ontheeveofWorldWar.brokeoffdiplomaticre
建构主义学习观认为:学习具有主动建构性、社会互动性与()A.能动性 B.主体性
在新生儿窒息复苏中哪项正确A、气囊面罩正压通气每隔1分钟测一次心率 B、心率>
51岁妇女,腹胀、食欲缺乏、乏力已半年,自觉腹部逐渐增大,经量减少,月经周期正常
患者,女,28岁。产后肢体、关节疼痛,屈伸不利,畏寒恶风,恶寒,发热,头痛,舌淡
下列关于份额转让的说法错误的是()。A:在共有人转让他的份额时(通常限于出卖),
进入疝囊成为疝内容物的脏器最多见的是A.小肠 B.大网膜 C.盲肠 D.阑
商品经济的基本规律是 A.利润平均化规律 B.使用价值规律 C价值规律
关于影子价格的说法,正确的是()A:电力作为产出时,其影子价格一般按成本分解法测
最新回复
(
0
)