文章列表

• 1.英语听力：自然百科 秋日黄石公园 Autumn—19
• But now, the final act of the season is about to take place. From out of apparently nowhere come the bighorn sheep, the toughest of all Yellowstones a...
• 2.英语听力：自然百科 秋日黄石公园 Autumn—18
• his is a tree that needs a cold winter. Its now November and the elk have found their feeding grounds just in time, the snows of winter at their heels...
• 3.英语听力：自然百科 秋日黄石公园 Autumn—17
• And for every dam, there is a new habitat for new life, and a richer, more diverse Yellowstone. But just as Yellowstone reveals the complexity of life...
• 4.英语听力：自然百科 秋日黄石公园 Autumn—16
• The return of the wolf will always be controversial. But evidence is now emerging that wolves are far more important than anyone imagined, especially ...
• 5.英语听力：自然百科 秋日黄石公园 Autumn—15
• Ranchers will tolerate elk as long as they don't compete too much with their cattle. But as the elk move in, their old enemy follows them out of Yello...
• 6.英语听力：自然百科 秋日黄石公园 Autumn—14
• By now the pronghorn have pushed further than any of Yellowstones animals, out of forests, through farmland and down into the wide prairies at the foo...
• 7.英语听力：自然百科 秋日黄石公园 Autumn—13
• To stay is to face the certainty of snow and wolves. To go offers the chance of an easier life, but the uncertainty of the world beyond Yellowstone. E...
• 8.英语听力：自然百科 秋日黄石公园 Autumn—12
• Now he must gather the last of his strength. The rival wants to take him on. The aim is to get an antler point into his neck. But they are evenly matc...
• 9.英语听力：自然百科 秋日黄石公园 Autumn—11
• Groves of aspen/ all turn at the same time, each grove descended from one tree interconnected by roots, color coordinated. As cold air sinks further d...
• 10.英语听力：自然百科 秋日黄石公园 Autumn—10
• In just a few weeks, this lake will be frozen, and the beavers wont be able to cut and move trees, but they will be able to swim right under the ice t...