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SSS 2012-02-15

时间:2012-03-19 05:59来源:互联网 提供网友:gmeng   字体: [ ]
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    (单词翻译:双击或拖选)

 This is Scientific American 60 second science, I am Christopher Intagliata, got a minute

 
The sounds many animals make are determined1 by their genes—they don't have to learn them. Humans, on the other hand, have all sorts of languages and accents, stuff we pick up from those around us. We're not alone. Whales, elephants, songbirds and bats also listen and learn.
 
Now there's literally2 a new kid on the block: goats. Because baby goats learn to bleat3 just like the kids they hang out with. So finds a study in the journal Animal Behaviour.
 
Researchers studied four groups of pygmy goat kids on an English farm—all with the same father, to minimize genetic4 differences. They recorded the kids' bleats5 at one week old and at five weeks, then analyzed6 those calls. And they found that kids raised within the same group started to sound similar over time, like this: 
 
[two goat sounds] 
 
or this 
 
[two other goat sounds]. 
 
Compare that to these two kids, who grew up apart:Hear the difference?
 
If you were a goat, the authors say, those different 'accents' might be a good way to identify outsiders. Then again, if you had trouble keeping track of who's who, don't let it get your goat. I kid!
 
Thanks for the minute, for Scientific American 60 second science, i am Christopher Intagliata

点击收听单词发音收听单词发音  

1 determined duszmP     
adj.坚定的;有决心的
参考例句:
  • I have determined on going to Tibet after graduation.我已决定毕业后去西藏。
  • He determined to view the rooms behind the office.他决定查看一下办公室后面的房间。
2 literally 28Wzv     
adv.照字面意义,逐字地;确实
参考例句:
  • He translated the passage literally.他逐字逐句地翻译这段文字。
  • Sometimes she would not sit down till she was literally faint.有时候,她不走到真正要昏厥了,决不肯坐下来。
3 bleat OdVyE     
v.咩咩叫,(讲)废话,哭诉;n.咩咩叫,废话,哭诉
参考例句:
  • He heard the bleat of a lamb.他听到小羊的叫声。
  • They bleat about how miserable they are.他们诉说他们的生活是多么悲惨。
4 genetic PgIxp     
adj.遗传的,遗传学的
参考例句:
  • It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难。
  • Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。
5 bleats 16d5bf12792425561b8f317763c4594c     
v.(羊,小牛)叫( bleat的第三人称单数 );哭诉;发出羊叫似的声音;轻声诉说
参考例句:
  • Every time the sheep bleats it loses a mouthful. 羊每叫一次,就少吃一口。 来自互联网
  • There is a saying that every time the sheep bleats, it loses a mouthful of hay. 有句古谚曾说,绵羊每叫一声,它就会掉落一口干草。 来自互联网
6 analyzed 483f1acae53789fbee273a644fdcda80     
v.分析( analyze的过去式和过去分词 );分解;解释;对…进行心理分析
参考例句:
  • The doctors analyzed the blood sample for anemia. 医生们分析了贫血的血样。 来自《简明英汉词典》
  • The young man did not analyze the process of his captivation and enrapturement, for love to him was a mystery and could not be analyzed. 这年轻人没有分析自己蛊惑著迷的过程,因为对他来说,爱是个不可分析的迷。 来自《简明英汉词典》
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