英语 英语 日语 日语 韩语 韩语 法语 法语 德语 德语 西班牙语 西班牙语 意大利语 意大利语 阿拉伯语 阿拉伯语 葡萄牙语 葡萄牙语 越南语 越南语 俄语 俄语 芬兰语 芬兰语 泰语 泰语 泰语 丹麦语 泰语 对外汉语

SSS 2009-01-28

时间:2010-05-17 03:01来源:互联网 提供网友:木渐浅。   字体: [ ]
特别声明:本栏目内容均从网络收集或者网友提供,供仅参考试用,我们无法保证内容完整和正确。如果资料损害了您的权益,请与站长联系,我们将及时删除并致以歉意。
    (单词翻译:双击或拖选)

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute.

 

Triceratops, as the name suggests, were huge dinosaurs2 adorned3 with three horns on their heads. Scientists now say those horns may have been a sort of battle bludgeon. Andrew Farke is a curator at the Raymond M. Alf Museum of Paleontology in California. He became curious about that headgear. Farke and colleagues wanted to investigate whether Triceratops fought each other with their horns. Which posed a problem: obviously, we can’t go back in time to watch the animals interact. So the researchers resorted to some techniques out of a Cretaceous CSI.

They examined more than 400 museums specimens4 of Triceratops and another closely related one-horned dinosaur1 called Centrosaurus. They scanned the skulls6 for injuries around where Triceratops might have locked horns and wrestled7. Their assumption was that if the horns were just for display, both species would show few scars.

But the Triceratops had 10 times more skull5 injuries than their Centrosaurus cousins. The most likely explanation is that they probably jabbed each other in the head while fighting. The researchers published their findings in the journal Public Library of Science ONE. They also caution that the horns could have served more than one purpose—perhaps fighting and flaunting8.

 

Thanks for the minute for Scientific American's 60-Second Science. I'm Cynthia Graber.

 


点击收听单词发音收听单词发音  

1 dinosaur xuSxp     
n.恐龙
参考例句:
  • 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。
2 dinosaurs 87f9c39b9e3f358174d58a584c2727b4     
n.恐龙( dinosaur的名词复数 );守旧落伍的人,过时落后的东西
参考例句:
  • 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》
3 adorned 1e50de930eb057fcf0ac85ca485114c8     
[计]被修饰的
参考例句:
  • The walls were adorned with paintings. 墙上装饰了绘画。
  • And his coat was adorned with a flamboyant bunch of flowers. 他的外套上面装饰着一束艳丽刺目的鲜花。
4 specimens 91fc365099a256001af897127174fcce     
n.样品( specimen的名词复数 );范例;(化验的)抽样;某种类型的人
参考例句:
  • Astronauts have brought back specimens of rock from the moon. 宇航员从月球带回了岩石标本。
  • The traveler brought back some specimens of the rocks from the mountains. 那位旅行者从山上带回了一些岩石标本。 来自《简明英汉词典》
5 skull CETyO     
n.头骨;颅骨
参考例句:
  • The skull bones fuse between the ages of fifteen and twenty-five.头骨在15至25岁之间长合。
  • He fell out of the window and cracked his skull.他从窗子摔了出去,跌裂了颅骨。
6 skulls d44073bc27628272fdd5bac11adb1ab5     
颅骨( skull的名词复数 ); 脑袋; 脑子; 脑瓜
参考例句:
  • One of the women's skulls found exceeds in capacity that of the average man of today. 现已发现的女性颅骨中,其中有一个的脑容量超过了今天的普通男子。
  • We could make a whole plain white with skulls in the moonlight! 我们便能令月光下的平原变白,遍布白色的骷髅!
7 wrestled c9ba15a0ecfd0f23f9150f9c8be3b994     
v.(与某人)搏斗( wrestle的过去式和过去分词 );扭成一团;扭打;(与…)摔跤
参考例句:
  • As a boy he had boxed and wrestled. 他小的时候又是打拳又是摔跤。
  • Armed guards wrestled with the intruder. 武装警卫和闯入者扭打起来。 来自《简明英汉词典》
8 flaunting 79043c1d84f3019796ab68f35b7890d1     
adj.招摇的,扬扬得意的,夸耀的v.炫耀,夸耀( flaunt的现在分词 );有什么能耐就施展出来
参考例句:
  • He did not believe in flaunting his wealth. 他不赞成摆阔。
  • She is fond of flaunting her superiority before her friends and schoolmates. 她好在朋友和同学面前逞强。 来自《现代汉英综合大词典》
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。
------分隔线----------------------------
TAG标签:   SSS  headgear
顶一下
(1)
100%
踩一下
(0)
0%
最新评论 查看所有评论
发表评论 查看所有评论
请自觉遵守互联网相关的政策法规,严禁发布色情、暴力、反动的言论。
评价:
表情:
验证码:
听力搜索
推荐频道
论坛新贴