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英语听力:探索发现 2012-09-12 长毛象王国 Mammoth—2

时间:2014-01-24 06:30来源:互联网 提供网友:gmeng   字体: [ ]
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 By searching for evidence that still survives today, we reconstruct the landscape and the wildlife of prehistoric1 North America. During the last Ice Age, massive glaciers2 covered half of North America. But to the far northwest, there was a land that remained free of ice. This land was called Beringia, and it ranged from what we now know as Canadian Yukon and Alaska across to Siberia in the west. North America was only colonized3 by people around 14,000 years ago, and Beringia is believed to be the starting point from which they spread out across the continent. In this program, we’ll go back to where it all began, what was this wild new world really like when it was still the land of the mammoth4. These mountain glaciers in the Canadian Yukon are relics5 of the great ice sheets that reached their peak some 20,000 years ago.


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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 glaciers e815ddf266946d55974cdc5579cbd89b     
冰河,冰川( glacier的名词复数 )
参考例句:
  • Glaciers gouged out valleys from the hills. 冰川把丘陵地带冲出一条条山谷。
  • It has ice and snow glaciers, rainforests and beautiful mountains. 既有冰川,又有雨林和秀丽的山峰。 来自英语晨读30分(高一)
3 colonized b6d32edf2605d89b4eba608acb0d30bf     
开拓殖民地,移民于殖民地( colonize的过去式和过去分词 )
参考例句:
  • The area was colonized by the Vikings. 这一地区曾沦为维京人的殖民地。
  • The British and French colonized the Americas. 英国人和法国人共同在美洲建立殖民地。
4 mammoth u2wy8     
n.长毛象;adj.长毛象似的,巨大的
参考例句:
  • You can only undertake mammoth changes if the finances are there.资金到位的情况下方可进行重大变革。
  • Building the new railroad will be a mammoth job.修建那条新铁路将是一项巨大工程。
5 relics UkMzSr     
[pl.]n.遗物,遗迹,遗产;遗体,尸骸
参考例句:
  • The area is a treasure house of archaeological relics. 这个地区是古文物遗迹的宝库。
  • Xi'an is an ancient city full of treasures and saintly relics. 西安是一个有很多宝藏和神圣的遗物的古老城市。
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