首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
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
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
admin
2015-06-23
27
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://jikaoti.com/ti/nd3FFFFM
0
大学英语四级
相关试题推荐
A、Touchingitseyes.B、Takingthehookoffit.C、Removingitsscales.D、Holdingitinyourhand.C短文中提到Don’twipethescalesoff
纸是中国最著名的发明之一。安徽生产的“宣纸"是特别为书画和书法制造的纸张。且被认为是“纸中之王”。墨宝是“文房四宝(fourtreasuresofthestudy)”中最为重要的,因为它的固体质料墨石能从古代留传至今。最初只有用杵(pestle)磨
Accordingtosociologists,thereareseveraldifferentwaysapersonmaybecomerecognisedastheleaderofasocialgroup.Alth
A、Themanshouldfirstsignaone-yearlease.B、Themancanmoveinaweeklater.C、Themanshouldpaintthewholething.D、The
A、Heshouldtryadifferentfieldofwork.B、Heshouldquithisjobassoonaspossible.C、Heshouldfindamorepromisingposit
Gesturesarethesilentlanguageofeveryculture.Itisimportanttoknowthebodylanguageofeverycountry,orwemaybe【B1】_
A、Thewomanshoulddirectlyaskforthemoney.B、Thewoman’sroommateshouldexplainthereason.C、Thewoman’sroommatewillret
A、Aclassreunion.B、Abirthdayparty.C、Aretirementparty.D、Afacultyreception.B对话中女士提到asurprisepartyforhimwhenhetur
A、Theytendtoputlotsofmake-upontheface.B、Theywilleatmorecucumberseveryday.C、Theytendtotrynaturalvegetables
A、HethinkstheycangiveTomalift.B、Heisn’tsurewhethertherewillbespaceforTom.C、Hethinkstheweatherwillbefine
随机试题
如何根据大脑皮层活动规律安排幼儿园的周活动?
假定你是李明,要为朋友王平举办18岁生日聚会,准备邀请英国朋友Bob参加。请你根据以下要点给Bob写一封电子邮件。要点:1.聚会时间和地点;2.聚会的活动安排;3.请他回复。注意:1.词数80词左右;2.请将电子邮件直接写在答题卡上的相应位置
A、Itishelpfulforstudentstoknowthemselves.B、Itishelpfultocreateabalancedschoolcurriculum.C、Studentscanbesucce
检察机关审查批准逮捕,下列哪些情形存在时应当讯问犯罪嫌疑人?()
Ininterviews,itiseasytomistakethenovelist’ssilencesforaloofness,especiallysincethecourtofpublicopinionallthe
下列物质可以作为基准物质使用的是()。
患者男,55岁,声嘶5年,有长期吸烟史。检查:无呼吸困难。间接喉镜检查:声带慢性充血,右侧声带中部增生,有白色斑片状物,声带活动正常。诊断首先考虑
下列哪种情况可以拟诊冠心病
如图所示,是某家庭电路的一部分,下列说法正确的是:
根据《中华人民共和国消费者权益保护法》的规定,服务者向消费者提供质低价高的服务,是对消费者()。
最新回复
(
0
)