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
2023-07-04
78
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, 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 fear that the sound will harm the sea animals. So, scientists are conducting tests on the animals first. The researchers lowered a loud speaker that emit low frequency sound about 1,000 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 researchers keep track of the animals’ movements. If the 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.
Questions 16 to 18 are based on the passage you have just heard.
16. What is the purpose of analyzing the speed of sound through the Pacific Ocean?
17. For what purpose were radio transmitters used?
18. What was the reaction of the sea animals to the sound tests?
选项
A、They were frightened and distressed.
B、They swam away when the speaker was turned on.
C、They swam closer to "examine" the speaker when it was turned off.
D、They didn’t seem to be frightened and kept swimming near the speaker.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2808879.html
相关试题推荐
TOEICistheTestofEnglishforInternationalCommunication.Itmeasuresth
TOEICistheTestofEnglishforInternationalCommunication.Itmeasuresth
TOEICistheTestofEnglishforInternationalCommunication.Itmeasuresth
TOEICistheTestofEnglishforInternationalCommunication.Itmeasuresth
[originaltext]AmericanpoetEmilyDickinsondiedin1886.Duringherlife,
[originaltext]Shypeopleoftenavoidsituationsthatforceclosecontactwi
[originaltext]Anewlypublishedstudyhasshownthatlonelinesscanspread
[originaltext]Anewlypublishedstudyhasshownthatlonelinesscanspread
[originaltext]Anewlypublishedstudyhasshownthatlonelinesscanspread
[originaltext]Anewlypublishedstudyhasshownthatlonelinesscanspread
随机试题
Therearebig______intheaccounts;wouldyoupleaseexplainittome?A、dispos
Mostpeoplefeelstressatsometimeintheirlives.Somepeoplelikethisp
Madridwashailedasapublichealthbea
末端试水装置的组成不包括()。A.试水阀 B.压力开关 C.压力表 D.
手提式机械泡沫灭火器在扑救流淌液体火灾时应将泡沫()喷射,使泡沫完全覆盖在燃烧
C
有关九分法计算成年人烧伤面积的说法,错误的是A.双前臂为6% B.两上臂为8%
秘书对张强说:“你的方案很好,我认为董事们都会赞同。”过一会儿,她又说:“没有哪
科学是建立在实验和观察的基础上,在确立科学真理的过程中,逻辑论证和数学推理扮演着
(2018年真题)关于银团贷款,下列表述不正确的是()。A.金额较大的贷款
最新回复
(
0
)