英语听力：2013-07-17 《恐龙的战争》3 顽强防御—14
时间：2019-01-23 作者：英语课 分类：探索与发现2013年
英语课
… and interpreting sounds. It’s called the auditory cortex.
What was a surprise is the higher centers of their brain are very large and suggest that something very different is going on in Parasaurolophus and its kin 1 than in most other of these plant-eating dinosaurs 3.
But how does an advanced auditory cortex help a Parasaurolophus defend itself against monster carnivores? First of all, its acute hearing can detect an approaching predator 4 from kilometers away. Then most importantly, it can react, deploying 5 an unusual weapon, a distinctive 6 sound that originates deep inside a strangely shaped head crest 7.
The crest contains the animal’s nasal cavity—a tube that loops around twice, creating a chamber 8 two and a half meters long. Calls, vibrations 9 originating in the voice box travel along these tubes. Like the chambers 10 of a trombone, those tubes amplify 11 and lower that sound. The result—an extremely low-frequency hum, even deeper than a foghorn 12.
Each species has its own distinct shape. Each species would have its own distinct sound.
The arrangement of the chambers inside each animal is unique. And the sound they create is like a fingerprint 13. These calls are Parasaurolophus’ primary form of defense 14. They are communicative, social beings that live in herds 15. Parasaurolophus have learned there’s safety in numbers.
An isolated 16 Parasaurolophus would be a dinosaur 2 in trouble. It’s gonna have to look out for predators 17 on its own. And therefore, a lone individual might do its call to say, “I’m alone”, and wait to hear for…
n.家族，亲属，血缘关系；adj.亲属关系的，同类的
- He comes of good kin.他出身好。
- She has gone to live with her husband's kin.她住到丈夫的亲戚家里去了。
n.恐龙
- Are you trying to tell me that David was attacked by a dinosaur?你是想要告诉我大卫被一支恐龙所攻击？
- He stared at the faithful miniature of the dinosaur.他凝视著精确的恐龙缩小模型。
n.恐龙( dinosaur的名词复数 )；守旧落伍的人，过时落后的东西
- The brontosaurus was one of the largest of all dinosaurs. 雷龙是所有恐龙中最大的一种。 来自《简明英汉词典》
- Dinosaurs have been extinct for millions of years. 恐龙绝种已有几百万年了。 来自《简明英汉词典》
n.捕食其它动物的动物；捕食者
- The final part of this chapter was devoted to a brief summary of predator species.本章最后部分简要总结了食肉动物。
- Komodo dragon is the largest living lizard and a fearsome predator.科摩多龙是目前存在的最大蜥蜴，它是一种令人恐惧的捕食性动物。
（尤指军事行动）使展开( deploy的现在分词 )； 施展； 部署； 有效地利用
- Provides support for developing and deploying distributed, component-based applications. 为开发和部署基于组件的分布式应用程序提供支持。
- Advertisement, publishing, repair, and install-on-demand are all available when deploying your application. 在部署应用程序时提供公布、发布、修复和即需即装功能。
adj.特别的，有特色的，与众不同的
- She has a very distinctive way of walking.她走路的样子与别人很不相同。
- This bird has several distinctive features.这个鸟具有几种突出的特征。
n.顶点；饰章；羽冠；vt.达到顶点；vi.形成浪尖
- The rooster bristled his crest.公鸡竖起了鸡冠。
- He reached the crest of the hill before dawn.他于黎明前到达山顶。
n.房间，寝室；会议厅；议院；会所
- For many,the dentist's surgery remains a torture chamber.对许多人来说，牙医的治疗室一直是间受刑室。
- The chamber was ablaze with light.会议厅里灯火辉煌。
n.摆动( vibration的名词复数 )；震动；感受；（偏离平衡位置的）一次性往复振动
- We could feel the vibrations from the trucks passing outside. 我们可以感到外面卡车经过时的颤动。
- I am drawn to that girl; I get good vibrations from her. 我被那女孩吸引住了，她使我产生良好的感觉。 来自《简明英汉词典》
n.房间( chamber的名词复数 )；（议会的）议院；卧室；会议厅
- The body will be removed into one of the cold storage chambers. 尸体将被移到一个冷冻间里。 来自《简明英汉词典》
- Mr Chambers's readable book concentrates on the middle passage: the time Ransome spent in Russia. Chambers先生的这本值得一看的书重点在中间：Ransome在俄国的那几年。 来自互联网
vt.放大，增强；详述，详加解说
- The new manager wants to amplify the company.新经理想要扩大公司。
- Please amplify your remarks by giving us some examples.请举例详述你的话。
n..雾号（浓雾信号）
- The foghorn boomed out its warning.雾角鸣声示警。
- The ship foghorn boomed out.船上的浓雾号角发出呜呜声。
n.指纹；vt.取...的指纹
- The fingerprint expert was asked to testify at the trial.指纹专家应邀出庭作证。
- The court heard evidence from a fingerprint expert.法院听取了指纹专家的证词。
n.防御，保卫；[pl.]防务工事；辩护，答辩
- The accused has the right to defense.被告人有权获得辩护。
- The war has impacted the area with military and defense workers.战争使那个地区挤满了军队和防御工程人员。
兽群( herd的名词复数 )； 牧群； 人群； 群众
- Regularly at daybreak they drive their herds to the pasture. 每天天一亮他们就把牲畜赶到草场上去。
- There we saw herds of cows grazing on the pasture. 我们在那里看到一群群的牛在草地上吃草。
adj.与世隔绝的
- His bad behaviour was just an isolated incident. 他的不良行为只是个别事件。
- Patients with the disease should be isolated. 这种病的患者应予以隔离。