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
2023-08-24
11
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/2953136.html
相关试题推荐
[originaltext]Monarchbutterfliesareacommonsummersightinthenorthern
[originaltext]Monarchbutterfliesareacommonsummersightinthenorthern
[originaltext]MySpace,thesocialnetworkingwebsite,isdifferentfromoth
[originaltext]I’llstillbeworking,butthingswouldbedifferent.Withan
[originaltext]I’llstillbeworking,butthingswouldbedifferent.Withan
[originaltext]I’llstillbeworking,butthingswouldbedifferent.Withan
[originaltext]M:Whereareyougoing,Catherine?TodayisSaturday.W:Saturday
[originaltext]W:Whataday!I’mexhausted.M:Well,it’snotoveryet.W:Yeah
[originaltext]M:Iguesswe’llhaveahotsummeragain.W:Iknow.Lastsummer
[originaltext]M:Iguesswe’llhaveahotsummeragain.W:Iknow.Lastsummer
随机试题
[originaltext]W:HowwasyourdinneratthenewItalianrestauranttoday?M:We
AccordingtoaGalluppoll(民意调查)in2001,Americans,forthefirsttimein
下图所示的防火墙结构属于_()_。 A.简单的双宿主主机结构 B.单DMZ
属于伤害一级预防的内容是A.摩托车头盔 B.汽车安全带 C.救生衣 D.交
请阅读Passagel,完成第小题。 Passage1 Alyric
中风的病理因素是A.痰、气、火、瘀 B.风、痰、湿、瘀 C.风、火、气、瘀
男性,35岁,贫血已半年,经各种抗贫血药物治疗无效。肝肋下2cm,脾肋下1cm,
气雾剂的抛射剂是A:氟氯烷烃类 B:氮酮 C:卡波姆 D:泊洛沙姆 E:
枳实消痞丸组成中含有的药物是 A.黄芩、干姜B.黄连、生姜.C.厚朴、陈皮
系统性红斑狼疮的病理特点包括 A.引起面部蝶形红斑B.引起肾小球肾炎 C
最新回复
(
0
)