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
2024-04-26
10
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 determine whether the Earth’s temperature is going up.
B、To study the behavior of some sea animals.
C、To measure the depths of the ocean.
D、To measure the movement of waves on the ocean.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3572214.html
相关试题推荐
[originaltext]InsomelargeAmericancityschools,asmanyas20-40%ofthe
[originaltext]LawshavebeenwrittentogoverntheuseoftheAmericanNati
[originaltext]LawshavebeenwrittentogoverntheuseoftheAmericanNati
[originaltext]LawshavebeenwrittentogoverntheuseoftheAmericanNati
[originaltext]IhadflownfromSanFranciscotoVirginiatoattendaconfer
[originaltext]IhadflownfromSanFranciscotoVirginiatoattendaconfer
[originaltext]M:Lookatalltheequipmenthere.Theymustbeusedforsomekin
[originaltext]M:Sally,Iheardfromtheradiothatoverhalftheworld’sseven
[originaltext]M:Sally,Iheardfromtheradiothatoverhalftheworld’sseven
[originaltext]M:TheDeanjustannouncedthatDr.Holdenfsgoingtotakeovera
随机试题
AccordingtoVintCerf,televisionwouldsoonapproachits"iPodmoment"whenvi
"Whatdoesthemiddlemandobutaddtothepriceofgoodsintheshops?"Suc
Ifyouwanttolivelongerandlowertheriskofheartdisease,amovetoth
根据《公路工程建设项目概算预算编制办法》(JTG3830—2018),直接费中人
被控对象的时间常数反映对象在阶跃信号激励下被控变量变化的快慢速度,即惯性的大小,
关于重度妊娠期高血压疾病的治疗原则,下列不正确的是A.解痉、镇静、防止抽搐 B
某火灾造成8人死亡,62人重伤,直接财产损失5000万元,按照火灾事故所造成的灾
A.山豆根 B.远志 C.北豆根 D.天冬 E.白及表面灰黄色,有较密而
投资项目决策分析与评价的基本要求包括贯彻落实科学发展观、资料数据准确可靠和()
在我国债券市场,属于非金融企业发行的债券有()。A.企业债 B
最新回复
(
0
)