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  • 英语听力:自然百科 冰冻星球 前往地球尽头—10

    The bison/ form a defensive circle around their young, horns pointing outwards. The wolves need the bison to break rank, but the tables are turning and now the wolves have to retreat. The pack focus their attention on the rear of the herd and the bis...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—9

    Further south still, unstooped, shrouded figures end the flat monotony of the Tundra. This is the tree line, the first place on our journey with sufficient warmth and liquid water to enable a tree to grow。 Surviving here is so crushingly difficult...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—8

    A colossal iceberg is born. This single block of ice, many hundreds of meters across would dwarf the biggest of mankind buildings. Every year, tens of thousands of icebergs are spawned by Greenland's glaciers, and their number is steadily increasing...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—7

    This, Jakobshavn Isbrae, is the fastest flowing glacier on our planet, moving as much as 14 meters a day. As it advances, it destroys everything in its path, even cutting its way through Greenland's great mountain ranges on its drive downwards toward...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—6

    For those who can get here in summer, these waters provide a feast of epic proportions. But the good times will be very short, a problem that faces all life in the Polar Regions. Journeying the south across the Arctic Ocean, the first land you/ reach...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—5

    It's time for the couple to go their separate ways. She will give birth to his cubs alone in nine months time. And he may never see her again. He returns to the frozen ocean, no doubt relieved to resume his solitary ways. And just in time, the ice be...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—4

    Few have witnessed this moment, for the male, his only tender encounter in an otherwise solitary life. But it doesn't last long. A rival suitor has also caught the female's scent. Courtship has to be put on hold. He must fight for his rights. He sees...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—3

    A male polar bear is searching for a mate. Willing females are few and far between. And the sea ice some of which he travels will soon melt and vanished. He's running out of time to find the mate in this frost frozen desert. Ten miles ahead, a single...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—2

    I am standing at the North Pole, the very top of the earth. Up here, it's easy to see why the Polar Regions are so cold. The sun never rises high enough in the sky to warm my back. And those rays that do strike the surface are mostly reflected back f...

  • 英语听力:自然百科 冰冻星球 前往地球尽头—1

    Over one third of our planet is frozen, and yet the icy worlds of the Arctic and Antarctic are as alien to most of us as the surface of another planet. They are places of superlatives, from ice caps that hold nearly 80% of our planet's fresh water to...

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