在线英语听力室

SSS 2012-05-15

时间：2012-06-28 02:27:47

搜索关注在线英语听力室公众号：tingroom，领取免费英语资料大礼包。

（单词翻译）

 Have you ever wanted to turn down the volume at a deafening1 concert or noisy bar? Envy the whale: a new study finds that toothed whales can reduce their own auditory sensitivity when they expect a loud sound. The work is presented at this week’s Acoustics2 2012 meeting. 

 
Whales and dolphins rely on their responsive hearing to interpret returning echolocation clicks. Previous research suggested that these marine3 mammals could dull their hearing before uttering outgoing echolocation clicks, which are very loud. Could they use the same coping mechanism4 for external noises?
 
To find out, researchers trained a false killer5 whale that a loud noise would always follow a brief warning signal. Then, they attached suction-cup sensors6 to the outside of the whale’s head and played the signal. The sensors measured brainwaves that indicated the whale did reduce its hearing sensitivity in expectation of a clamor. The researchers hope to test other species as well.
 
Loud noises from ships can disturb whales. To accommodate marine life, perhaps vessels7 could emit signals before making a ruckus, warning whales to tune8 us out.
 
Thanks for the minute for Scientific Americans 60 second science, I am Sophie Bushwick
 
auditory:related to hearing
 
clamor:a loud continuous noise

分享到：


点击收听单词发音收听单词发音  

1 deafening deafening     
adj. 振耳欲聋的, 极喧闹的 动词deafen的现在分词形式
参考例句：
  • The noise of the siren was deafening her. 汽笛声震得她耳朵都快聋了。
  • The noise of the machine was deafening. 机器的轰鸣声震耳欲聋。
2 acoustics kJ2y6     
n.声学，(复)音响效果，音响装置
参考例句：
  • The acoustics of the new concert hall are excellent.这座新音乐厅的音响效果极好。
  • The auditorium has comfortable seating and modern acoustics.礼堂里有舒适的座椅和现代化的音响设备。
3 marine 77Izo     
adj.海的；海生的；航海的；海事的；n.水兵
参考例句：
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。
4 mechanism zCWxr     
n.机械装置；机构，结构
参考例句：
  • The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人体的组成部件。
  • The mechanism of the machine is very complicated.这台机器的结构是非常复杂的。
5 killer rpLziK     
n.杀人者，杀人犯，杀手，屠杀者
参考例句：
  • Heart attacks have become Britain's No.1 killer disease.心脏病已成为英国的头号致命疾病。
  • The bulk of the evidence points to him as her killer.大量证据证明是他杀死她的。
6 sensors 029aee483db9ae244d7a5cb353e74602     
n.传感器，灵敏元件( sensor的名词复数 )
参考例句：
  • There were more than 2000 sensors here. 这里装有两千多个灵敏元件。 来自《简明英汉词典》
  • Significant changes have been noted where sensors were exposed to trichloride. 当传感器暴露在三氯化物中时，有很大变化。 来自辞典例句
7 vessels fc9307c2593b522954eadb3ee6c57480     
n.血管( vessel的名词复数 )；船；容器；（具有特殊品质或接受特殊品质的）人
参考例句：
  • The river is navigable by vessels of up to 90 tons. 90 吨以下的船只可以从这条河通过。 来自《简明英汉词典》
  • All modern vessels of any size are fitted with radar installations. 所有现代化船只都有雷达装置。 来自《现代汉英综合大词典》
8 tune NmnwW     
n.调子；和谐，协调；v.调音，调节，调整
参考例句：
  • He'd written a tune,and played it to us on the piano.他写了一段曲子，并在钢琴上弹给我们听。
  • The boy beat out a tune on a tin can.那男孩在易拉罐上敲出一首曲子。

本文本内容来源于互联网抓取和网友提交，仅供参考，部分栏目没有内容，如果您有更合适的内容，欢迎 点击提交 分享给大家。