文章列表

• 1.英语听力：自然百科 走进西藏 tibet—8
• While the males fence, the females look on. Injured and weakened by the battle, the loser will be an easy target for the predators and scavengers that...
• 2.英语听力：自然百科 走进西藏 tibet—7
• It's about 5,000 meters above sea level, way above the point at which altitude sickness starts to affect humans. At this height, most people are gaspi...
• 3.英语听力：自然百科 走进西藏 tibet—6
• In this rugged and unforgiving terrain littered with fractured rock and ice-cold rivers, the slightest miscalculation may have fatal consequences. The...
• 4.英语听力：自然百科 走进西藏 tibet—5
• The golden dome which is mounted right at the top of the prayer pole is the most sacred object of all. Or it will be once it's retrieved. The old Sham...
• 5.英语听力：自然百科 走进西藏 tibet—4
• Fed by the mountain glaciers, the Tibetan plateau even has its own inland sea. This is Qinghai Lake, China's largest. Millions of years of evaporation...
• 6.英语听力：自然百科 走进西藏 tibet—3
• With hundreds of peaks over 7,000 metres and 13 peaks higher than 8,000 metres, they are the highest mountains on earth. The Tibetan region contains o...
• 7.英语听力：自然百科 走进西藏 tibet—2
• For the argali, the worlds largest sheep, it means searching for a few tufts of grass. Descending from the hilltops to lower altitudes, the argali ban...
• 8.英语听力：自然百科 走进西藏 tibet—1
• The Tibetan Plateau is a quarter of China. Much of it is extremely remote and inhospitable. Its southern border runs through the worlds highest mounta...
• 9.英语听力：自然百科 已知的宇宙：外星生命 Alien_Contact-6
• To make sure Kepler's truely found a planet, scientists are using one of the largest earth-based telescopes for conformation. This telescope will also...
• 10.英语听力：自然百科 已知的宇宙：外星生命 Alien_Contact-5
• Because from trillions of miles away, these small planets get lost in the blinding glare of their stars brightness. The sad truth of the matter is tha...