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、They were frightened and distressed. B、They swam away when the speaker was turned on. C、They swam closer to the speaker when t
A、They were frightened and distressed. B、They swam away when the speaker was turned on. C、They swam closer to the speaker when t
admin
2021-07-14
28
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、They were frightened and distressed.
B、They swam away when the speaker was turned on.
C、They swam closer to the speaker when the speaker was turned off.
D、They swam near the speaker whether the speaker was turned on or off.
答案
D
解析
转载请注明原文地址:https://kaotiyun.com/show/wCJ7777K
0
大学英语六级
相关试题推荐
A、Becausetheyarenotaccustomedtoit.B、Becausetheyarenotpsychologicallypreparedforit.C、Becausetheirgenesdifferfr
A、Discoveringthetruenatureofsubatomicparticles.B、Theirexplanationofthelawsofcauseandeffect.C、Theirworkonvery
A、Interested.B、Angry.C、Puzzled.D、Merry.C
VideogameshavebecomeincreasinglypopularinbotharcadesandtheaverageAmericanhome.Peopleofallagesandfromallwalk
HowtoDuckCabinFeversandOtherAchesonaPlane?[A]Onthefirstlegofthisseason’sholidaytraveltour,Ihadthedelight
HowtoDuckCabinFeversandOtherAchesonaPlane?[A]Onthefirstlegofthisseason’sholidaytraveltour,Ihadthedelight
A、DoubtfulB、Supportive.C、Opposing.D、Neutral.C短文提到,政府机构坚决反对标签提供更多的信息,C的Opposing(反对)与短文的disagreedstrongly一致,故正确。
Forthispart,youareallowed30minutestowriteashortessayonstressmanagement.Youressayshouldincludetheimportance
Testinghasreplacedteachinginmostpublicschools.Myownchildren’sschoolweekisframedbypretests,drills,tests,andre
A、Cameras,GPSandaloudspeakerareinstalledinit.B、Anoperatorstaysinsidetherobotandcontrolsit.C、Therobotcantalk
随机试题
下列级数条件收敛的是().
A.10cmB.9cmC.11cmD.13cmE.12cm坐骨棘间径的平均值是
患者,男,51岁,肝功能不全,现因伤口细菌感染严重,而引起了严重的炎症。医生开具苄青霉素克拉维酸钾和地塞米松进行治疗。克拉维酸钾属于()。
甲股份有限公司(以下简称“甲公司”)是一家上市公司。2016年1月1日,甲公司以定向增发普通股股票的方式,从非关联方处取得了乙股份有限公司(以下简称“乙公司”)80%的股权,于同日通过产权交易所完成了该项股权转让程序,并办理了工商变更登记,能够对乙公司实施
甲企业于2018年12月1日向乙企业购买一批货物,约定货到付款。乙企业于2018年12月5日发货,在运输途中,乙企业得知甲企业被受理了破产申请,但是乙企业没有及时表示取回货物。在货物到达甲企业后,甲无力支付货款。则下列说法正确的有()。
商业银行在降低市场风险和操作风险的资本要求方面,主要是()。
企业战略联盟是两个或两个以上的经济实体(一般指企业,如果企业间的某些部门达成联盟关系.也适用此定义)为了实现特定的战略目标而采取的共担风险、共享利益的长期联合与合作协议。根据上述定义,下列属于企业战略联盟的是()。
绩效评估
在文件系统中,文件的逻辑结构可分为两类,它们是流式文件和______文件。
Inordertostrengthenhisarguments,George________respectablesocialscientistswhoagreewithhim.
最新回复
(
0
)