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、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
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
admin
2019-05-30
71
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://kaotiyun.com/show/OXX7777K
0
大学英语六级
相关试题推荐
Employersarefarlesslikelytoemploypeoplewithmentalillnessesthanthosewithphysicalailments(疾病),areportshows.The
A、Studentsarenotrequiredtoattendregularclasslectures.B、Theprofessorvideotapesclasslecturesforreview.C、Classesar
Withincreasingprosperity,WesternEuropeanyouthishavingaflingthatiscreatingdistinctiveconsumerandculturalpatterns
A、Heisunabletopreventstudentsfromfighting.B、Heispopularforhisdevotiontoteaching.C、Hislecturesarehardtounder
A、Kidnapbyaliens.B、Kidnapbyghosts.C、Attackfromseacreatures.D、Transportationtoothertimesandplaces.B短文介绍了百慕大魔鬼三角区飞
TrustMe,I’maRobot[A]Withrobotsnowemergingfromtheirindustrialcagesandmovingintohomesandworkplaces,roboticists
A、Theyhavedifficultyidentifyingthesecells.B、Theyaren’tsurehowthesecellswork.C、They’velearnedhowtoreproducethes
A、Banksavings.B、Spendinghabits.C、Monthlybills.D、Familydebts.B
A、Ithassimplifieditsoperatingsystem.B、Ithasreleasedanewversion.C、Ithasimproveditsappearance.D、Ithasaddedmore
A、Theymadesomesmallstoreshavenoconfidenceinsale.B、Theyforcedsomesmallstorestolowertheprice.C、Theypromotedth
随机试题
下列与乙肝慢性化有关的是
在现代社会里,企业在目标上应当坚持()。
以散布谣言等手段影响证券发行、交易的行为,按照我国有关证券法律规定应属于欺诈客户行为。()
垄断竞争厂商实现最大利润的途径有()。
(2016·江西)教育作为培养人的社会实践活动,它是一种相对独立的社会子系统。这个子系统包括的基本要素有()
来自东南西北的赵钱孙李四个人的职业各不相同,已知东部人是医生,西部人年龄最小而且是警察,孙比东部人年龄大,钱是法官而且是南部人的朋友,李从未学过医。由此可知孙是()。
有报道称,由于人类大量排放温室气体,过去150多年中全球气温一直在持续上升。但与1970年至1998年相比,1999年至今全球表面平均气温的上升速度明显放缓,近15年来该平均气温的上升幅度不明显,因此全球变暖并不是那么严重。如果以下各项为真,最能削弱上述论
A、听广播B、浏览网站C、听同学说的D、老师通知他了B
______approachisastudyoflanguagefromthepointsofviewofitsdevelopmentinthecourseoftime.
A、Theyaretoosmalltotheeyes.B、Theymoveveryquickly.C、Theyaretransparent.D、Theyarerarelyfoundnearthesurface.C女
最新回复
(
0
)