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
2023-08-07
37
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/2906680.html
相关试题推荐
[originaltext]M:Excuseme.Where’syourrockmusicsection?W:Rockmusic?I’m
[originaltext]M:Excuseme.Where’syourrockmusicsection?W:Rockmusic?I’m
[originaltext]W:Areyouwatchinganygoodshowsthesedays?M:Actuallyyes.I
[originaltext]W:Areyouwatchinganygoodshowsthesedays?M:Actuallyyes.I
[originaltext]W:Areyouwatchinganygoodshowsthesedays?M:Actuallyyes.I
[originaltext]M:Today,ourguestisRosieMullender,whoworksasafeaturese
[originaltext]M:GoodeveningandwelcometoPhysicsToday.[5]Hereweintervi
[originaltext]M:GoodeveningandwelcometoPhysicsToday.[5]Hereweintervi
[originaltext]M:[1]Doyoumindtakingmyphotowiththestatueoverthere?I
[originaltext]M:[1]Doyoumindtakingmyphotowiththestatueoverthere?I
随机试题
In1913(when)he(was)only18(yearold),LeoSowerby’sviolinconcertowas(p
爸爸的治家方法比外祖母民主一些,他虽秉承祖训,不听“妇人之言”,可是他对妈妈的言论自由却没有什么钳制的举动,换句话说,妈妈能以在野之身批评爸爸。通常是在
Whatdowelearnaboutthemanfromtheconversation?[br][originaltext]M:Ig
Thiscoursepreparesnon-nativespeakersfortheinternationallyrecognizedF
Weallscreamforwaterwhenthirsty,butdoyouknowinveryhot,dryweath
在CPU和主存之间设置“Cache”的作用是为了解决()的问题。A.主存容量
按照投资者的共同偏好规则,排除投资组合中那些被所有投资者都认为差的组合,把排除后
某钢筋混凝土现浇板跨度为7.8m,其模板是否起拱设计无具体要求,其起拱高度可能为
南沙参和北沙参都具有的功效是A.益胃生津 B.润肠通便 C.滋阴润燥 D.
男性,59岁,突然上腹部疼痛2小时不缓解,伴恶心、呕吐,疼痛放射至左臂,在单位医
最新回复
(
0
)