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
50
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 trans-mitters 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、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
细节题。由“Radio transmitters attached to some of the sea animalshelp the researchers keep track of the animals’movements”可知,研究者把无线电发送器附在海洋生物身上是为了能够追踪它们的行踪。故答案为C。
转载请注明原文地址:https://tihaiku.com/zcyy/2806568.html
相关试题推荐
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
随机试题
[originaltext]W:Great.Goodtoseeyou.M:Myfirstquestioniswhatkindoft
[originaltext]W:Ihaven’thadmuchexerciselately.Myonlyrecreationbasbee
“或然率”是指()A.可能性在质上的一种科学说明和测定 B.可能性在量上的一种
钢结构焊接质量无损检验包括()。A.外观检查B.致密性检验C.无损探伤D
DTH皮肤试验阳性与下列物质有关A.抗原、抗原致敏的T淋巴细胞和巨噬细胞 B.
下列属于拱式桥施工常用拱架的有( )。A.土牛拱 B.木拱架 C.混凝土拱
艾滋病与人的行为有关,而“易感人群”是指:()A、静脉吸毒者 B、性乱者 C
2012年7月,甲乙丙三人共同出资在丙所在城市成立了一家房地产经纪股份制公司的分
房地产转让的实质是()发生转移。A:房地产权属 B:房地产权益构成 C:房地
可记名、挂失,效率高、成本低、交易安全、可上市流通的国债是()。A.凭证式国债
最新回复
(
0
)