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SSS 2010-04-15

时间:2010-06-11 01:50来源:互联网 提供网友:swalloer   字体: [ ]
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    (单词翻译:双击或拖选)

Last week, scientists announced the discovery of a remarkably1 well-preserved skeleton of what might be a new species of an ancient hominid that lived almost 2 million years ago.

The bones were found in 2008. This February, they were analyzed2 by one of the highest-tech tools available, the synchrotron at the European Synchrotron Radiation Facility in Grenoble, France. The device uses beams of x-rays a trillion times brighter than medical x-rays, and produces images at the atomic level.

Paleontologist Paul Tafforeau developed a technique to use the synchrotron to study fossils even still partially3 entombed—with resolution at the micron scale.

Fossils of the age and significance of the new find are rarely moved. But discoverer Lee Berger oversaw4 the careful transport of the skull5 and skeleton fragments from South Africa to France for a two-week intensive study.

The preliminary analysis has turned up fossilized insect eggs, left by ancient bugs6 that may have fed on the decomposing7 corpse8. There’s also a region of low-density that could be a section of the hominid’s brain. The researchers hope that the synchrotron ultimately supplies what used to be impossible-to-get details about our distant relative.

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


点击收听单词发音收听单词发音  

1 remarkably EkPzTW     
ad.不同寻常地,相当地
参考例句:
  • I thought she was remarkably restrained in the circumstances. 我认为她在那种情况下非常克制。
  • He made a remarkably swift recovery. 他康复得相当快。
2 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》
3 partially yL7xm     
adv.部分地,从某些方面讲
参考例句:
  • The door was partially concealed by the drapes.门有一部分被门帘遮住了。
  • The police managed to restore calm and the curfew was partially lifted.警方设法恢复了平静,宵禁部分解除。
4 oversaw 1175bee226edb4f0a38466d02f3baa27     
v.监督,监视( oversee的过去式 )
参考例句:
  • He will go down as the president who oversaw two historic transitions. 他将作为见证了巴西两次历史性转变的总统,安然引退。 来自互联网
  • Dixon oversaw the project as creative director of Design Research Studio. 狄克逊监督项目的创意总监设计研究工作室。 来自互联网
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 bugs e3255bae220613022d67e26d2e4fa689     
adj.疯狂的,发疯的n.窃听器( bug的名词复数 );病菌;虫子;[计算机](制作软件程序所产生的意料不到的)错误
参考例句:
  • All programs have bugs and need endless refinement. 所有的程序都有漏洞,都需要不断改进。 来自《简明英汉词典》
  • The sacks of rice were swarming with bugs. 一袋袋的米里长满了虫子。 来自《简明英汉词典》
7 decomposing f5b8fd5c51324ed24e58a14c223dc3da     
腐烂( decompose的现在分词 ); (使)分解; 分解(某物质、光线等)
参考例句:
  • The air was filled with the overpowering stench of decomposing vegetation. 空气中充满了令人难以忍受的腐烂植物的恶臭。
  • Heat was obtained from decomposing manures and hot air flues. 靠肥料分解和烟道为植物提供热量。
8 corpse JYiz4     
n.尸体,死尸
参考例句:
  • What she saw was just an unfeeling corpse.她见到的只是一具全无感觉的尸体。
  • The corpse was preserved from decay by embalming.尸体用香料涂抹以防腐烂。
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