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SSS 2012-02-27

时间：2012-03-19 06:29:26

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（单词翻译）

 Cave painting connects us with our prehistoric1 artist ancestors. But there's a dearth2 of such illustration in the Americas. Now a cave in Brazil has been found to house the oldest New World image known. 

 
The shelter was excavated3 from 2002 to 2009. In the last days there, scientists exposed a foot-high figure in the bedrock. It has a c-shaped head, two outstretched arms, two legs, and a very visible penis.
 
Using radiocarbon dating, the researchers dated an ash layer to between 9300 and 10,500 years ago. A hearth4 found about an inch above the drawing gives similar results. And the researchers used a technique called optically stimulated5 luminescence on sediment6, which also dated to around 10-12,000 years ago.
 
The scientists say this makes the petroglyph the oldest reliably dated cave art in the Americas. The research was published in journal Public Library of Science One. 
 
Echoes of this style exist in other early art in the region, amidst diverse styles throughout North and South America. The researchers the range of images reveals a spectrum7 of symbolic8 thought dating back to early in the history of human colonization9 of the hemisphere.

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1 prehistoric sPVxQ     
adj.（有记载的）历史以前的，史前的，古老的
参考例句：
  • They have found prehistoric remains.他们发现了史前遗迹。
  • It was rather like an exhibition of prehistoric electronic equipment.这儿倒像是在展览古老的电子设备。
2 dearth dYOzS     
n.缺乏，粮食不足，饥谨
参考例句：
  • There is a dearth of good children's plays.目前缺少优秀的儿童剧。
  • Many people in that country died because of dearth of food.那个国家有许多人因为缺少粮食而死。
3 excavated 3cafdb6f7c26ffe41daf7aa353505858     
v.挖掘( excavate的过去式和过去分词 )；开凿；挖出；发掘
参考例句：
  • The site has been excavated by archaeologists. 这个遗址已被考古学家发掘出来。
  • The archaeologists excavated an ancient fortress. 考古学家们发掘出一个古堡。 来自《简明英汉词典》
4 hearth n5by9     
n.壁炉炉床，壁炉地面
参考例句：
  • She came and sat in a chair before the hearth.她走过来，在炉子前面的椅子上坐下。
  • She comes to the hearth,and switches on the electric light there.她走到壁炉那里，打开电灯。
5 stimulated Rhrz78     
a.刺激的
参考例句：
  • The exhibition has stimulated interest in her work. 展览增进了人们对她作品的兴趣。
  • The award has stimulated her into working still harder. 奖金促使她更加努力地工作。
6 sediment IsByK     
n.沉淀，沉渣，沉积(物)
参考例句：
  • The sediment settled and the water was clear.杂质沉淀后，水变清了。
  • Sediment begins to choke the channel's opening.沉积物开始淤塞河道口。
7 spectrum Trhy6     
n.谱，光谱，频谱；范围，幅度，系列
参考例句：
  • This is a kind of atomic spectrum.这是一种原子光谱。
  • We have known much of the constitution of the solar spectrum.关于太阳光谱的构成，我们已了解不少。
8 symbolic ErgwS     
adj.象征性的，符号的，象征主义的
参考例句：
  • It is symbolic of the fighting spirit of modern womanhood.它象征着现代妇女的战斗精神。
  • The Christian ceremony of baptism is a symbolic act.基督教的洗礼仪式是一种象征性的做法。
9 colonization fa0db2e0e94efd7127e1e573e71196df     
殖民地的开拓，殖民，殖民地化； 移殖
参考例句：
  • Colonization took place during the Habsburg dynasty. 开拓殖民地在哈布斯堡王朝就进行过。
  • These countries took part in the colonization of Africa. 这些国家参与非洲殖民地的开发。

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