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SSS 2011-11-10

时间:2011-12-02 05:55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)
 Food is the body's fuel ,now a study finds the amount of the energy in that fuel can depend not just on it's calorie content but on how it's prepared,and the research published in the proceedings1 of the National Academy of Sciences could explain an inch leaping human evolution .Food's energy value is usually measured beofore consumption ,but Harvard scientists bet two groups of mice,either meat or sweet potatos and prepared them differently .Either whole of panned ,raw or cooked to create variety of diets .The reserchers then measure the mice,found that panned meat and potatos cause more wieght gained than raw food. Cookie increses the weight most.The extra calorie cookie makes available may have allowed the suviral humans with larger bodies and more comllex brains.studying almost 2 million years ago, those physical changes are required more energy and explosing food to fire may have provided that boost. Of course a legacy2 revolution is that modern humans often gain too much wieght which might be called a raw deal .

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1 proceedings Wk2zvX     
n.进程,过程,议程;诉讼(程序);公报
参考例句:
  • He was released on bail pending committal proceedings. 他交保获释正在候审。
  • to initiate legal proceedings against sb 对某人提起诉讼
2 legacy 59YzD     
n.遗产,遗赠;先人(或过去)留下的东西
参考例句:
  • They are the most precious cultural legacy our forefathers left.它们是我们祖先留下来的最宝贵的文化遗产。
  • He thinks the legacy is a gift from the Gods.他认为这笔遗产是天赐之物。
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TAG标签:   sss  托福素材  sss  托福素材
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