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
2024-02-02
14
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
推理题。根据关键句“Researchers at the site noticed that largenumbers of sea animals swim near the speaker whether it was turned on or off”可知,研究者发现不管它(仪器)是开是关,都有大量的海洋生物在周围游走。由此可推知海洋生物对声音测试并不害怕。故答案选D。
转载请注明原文地址:https://tihaiku.com/zcyy/3416853.html
相关试题推荐
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:Didyoureallygiveawayallyourfurniturewhenyoumovedint
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]M:IjustreceivedanE-mailfromoneofmyformerclassmates.I
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
[originaltext]CountyfairsareatraditioninNewEnglandtowns.Theyoffer
随机试题
Technologyhascometothemarketplace.InmanyU.Sstoresthecash【C1】____
Goodlocksonalloutsideandfirstfloorwindowsareessentialtoahome’ss
以下关于城镇土地使用税的表述中,不正确的是()。A.纳税人使用的土地不属于同一省
患者女性,46岁。主诉排便时阴道脱出一物块,检查见用力时阴道前壁膨出,宫颈延长,
下列对英国风俗礼仪叙述正确的是()。A.英国人讨厌墨绿色 B.忌用山羊、大象和
A.阿托品 B.利多卡因 C.异搏定 D.苯妥英钠 E.地高辛治疗心功能
蓄电池室应使用防爆型照明、排风机及空调,()等应装在蓄电池室门外,蓄电池室的照明
左边是给定的四面体外表面的展开图,右面哪一项能由它折叠而成? A.如上图所示
根据上述资料,计算该企业本年的应收账款周转率为( )。A.30000/[(42
(2017年真题)下列信息和资料中,可以作为施工合同索赔证据的有()。A.施工
最新回复
(
0
)