文章列表

• 1.英语听力：自然百科 探索世界奥秘之Wild Europe-Genesis (欧洲自然写真) Unit05
• Wild Europe - Genesis 肇始之初- 5 It took a ten-meter layer of fallen rain forest to make just a one-meter seam of coal. When you consider the depth o...
• 2.英语听力：自然百科 探索世界奥秘之Wild Europe-Genesis (欧洲自然写真) Unit04
• Wild Europe - Genesis 肇始之初- 4 This was no ordinary forest. What looked like trees were in fact giant ferns, horsetails and club mosses, the fossil...
• 3.英语听力：自然百科 探索世界奥秘之Wild Europe-Genesis (欧洲自然写真) Unit03
• Wild Europe - Genesis 肇始之初- 3 In the east, another ancient range, the Urals, separates Europe from Asia. Both these ranges are evidence of Europe'...
• 4.英语听力：自然百科 探索世界奥Wild Europe-Genesis (欧洲自然写真) Unit02
• Wild Europe - Genesis 肇始之初- 2 And at other times, they'd have looked more like Africa's Serengeti Plains. More than 15 millions years ago, what is...
• 5.英语听力：自然百科 探索世界奥秘之Wild Europe-Genesis (欧洲自然写真) Unit01
• Wild Europe - Genesis 肇始之初- 1 Europe, an ancient continent. Within its borders lies unrivalled richness of both natural and human wonders. At its ...
• 6.英语听力：自然百科 探索世界奥秘之Life in the Freezer (冰雪童话) Unit09
• The male usually leads. If the female is sufficiently impressed, the pair seal their relationship with a vocal duet. King Penguin rookeries are very b...
• 7.英语听力：自然百科 探索世界奥秘之Life in the Freezer (冰雪童话) Unit08
• Throughout the winter, adults come and go from their traditional breeding colonies. Antarctica is home to 2 million Kings. In this one colony alone, t...
• 8.英语听力：自然百科 探索世界奥秘之Life in the Freezer (冰雪童话) Unit07
• An adult wanderer may travel 5, 000 miles, sometimes to Brazil and back, in order to collect squid for its young. This enormous chick weighs 10 kilos,...
• 9.英语听力：自然百科 探索世界奥秘之Life in the Freezer (冰雪童话) Unit06
• Fur seals also feed out in the open ocean, but they are able to dive to a hundred meters or more. The patchiness of the krill requires those that live...
• 10.英语听力：自然百科 探索世界奥秘之Life in the Freezer (冰雪童话) Unit05
• Other creatures benefit from the whales' industry-sea birds forage in their wake. As the whales drive the krill closer to the surface, it comes within...