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[国家地理] 国家地理:蒙古族生活日渐消失
听力练习The herdsmen of Inner Mongolia have freely roamed the plains for many centuries with their livestock grazing on fertile grasslands stretching across the horizon. But now their age-old customs2008-12-08 编辑：echo
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[国家地理] 国家地理:海湾地区重兴珍珠采集业
听力练习Tucked away in the United Arab Emirate’s northernmost region, a very delicate experiment is underway to bring some luster back to the region’s pearl industry. Since 2005, one company has be2008-12-07 编辑：echo
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[国家地理] 国家地理:阿尔卑斯山见证气候变化危机
It’s time for these men to get ready for work, and work means hanging off a cliff at 10,000 feet. High in the Austrian Alps, these men are trying to rescue a historic weather station from the weathe2008-12-06 编辑：echo
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[国家地理] 国家地理:不凡的沙滩救生员
Imagine a summer weekend on a California beach dense with bodies. But for one onlooker, this seemingly calm scene may be a series of accidents waiting to happen. How does a lifeguard know when a rais2008-12-05 编辑：echo
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[国家地理] 国家地理:温室效应导致花种减少
In the Rocky Mountains of Central Colorado, the forces of nature create a landscape of alpine lakes, high-altitude ponds teeming with life and mountain meadows bursting with wild flowers. It is amids2008-12-04 编辑：echo
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[国家地理] 国家地理:"环保"''的高尔夫球场
Millions of Americans enjoy playing golf. But golf courses are not known to be environmentally friendly. They demand a lot of fresh water, fertilizers and herbicides to keep them looking green. That’2008-12-03 编辑：echo
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[国家地理] 国家地理:生存危机下的人体反应
In animals, this part of the brain evolved around the time of the dinosaurs before mammals existed. It's hardwired to beat starvation. For three days Jean-Luc has been trapped underground. He h..2008-12-02 编辑：echo
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[国家地理] 国家地理:Diving to China's Gre
Members of a Beijing diving club had the chance to experience China's Great Wall in a way few others have by exploring a section of the landmark that was submerged in the cloudy waters of a res..2008-12-01 编辑：echo
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[国家地理] 国家地理:Atom Smasher Safe 粒子对撞实验可
The most powerful atom smasher ever built could make some bizarre discoveries, such as new forces of nature or even extra dimensions of space, after it's switched on in August. The Large Hadron..2008-11-30 编辑：echo
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