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  • 英语听力:自然百科 神秘百慕大 bermuda triangle—8

    There's no doubt that a stream of giant bubbles could theoretically have sunk the U.S.S.'Cyclops'. Whether the bubbles were there or not, that's not for us to say. But I'll leave that up to the oceanographers. But could methane gas also explain the d...

  • 英语听力:自然百科 神秘百慕大 bermuda triangle—7

    Some believe that massive underwater landslides or earthquakes can violently release gas from a substance called methane hydrate trapped beneath the sea bed. As its escaping bubbles rise, they lower the density of the surrounding ocean. The ship drop...

  • 英语听力:自然百科 神秘百慕大 bermuda triangle—6

    Of course, we're always hopeful that we can find the Holy Grail of the Bermuda Triangle search which is 'Flight 19'. But, but any plane that we can locate is a jigsaw piece of the puzzle of the mystery of the Bermuda Triangle. Deep in the heart of th...

  • 英语听力:自然百科 神秘百慕大 bermuda triangle—5

    Its two passengers are conducting an investigation into what they call electronic fog, a vapor that they think causes disappearances within the Triangle. Pilot Bruce Gernon needs to land the aircraft as soon as possible. The plane touches down safely...

  • 英语听力:自然百科 神秘百慕大 bermuda triangle—4

    Pierce thinks this powerful charge can electrify clouds in the lower atmosphere and create this supposed electronic fog. As this additional energy comes into the storm activity, it ionizes the air wall and this generates, quote, the electronic fog. A...

  • 英语听力:自然百科 神秘百慕大 bermuda triangle—3

    Gerrallan needs to escape the fast-developing cloud in order to survive. The tunnel was rapidly getting stronger, and it was a little lower at ten thousand feet to the center of the tunnel so we aimed for that opening and started descending down at f...

  • 英语听力:自然百科 神秘百慕大 bermuda triangle—2

    In 1945, five Avenger torpedo bombers left from Fort Lauderdaleon a training mission, and they flew off into oblivion. We'regoing to fly east. We're flying too far north. We think we're 225 miles east of base. Their names would go down in history as...

  • 英语听力:自然百科 神秘百慕大 bermuda triangle—1

    In our world of scientific discovery, one mystery endures. The Hoodoo Sea, the Limbo of The Lost, some seeing mysterious forces at work, others the powers of sea and storm. We dive into the deep. It appears to be a large military plane. And unleash s...

  • 英语听力:自然百科 神奇水世界 Water-15

    They could not lose. Resistance movements started. They would take over places like this and opened the sluice gate allowing the water to pour back down into Owens Valley. Irregularly they dynamited the aqueduct. But the city rebuilt it and the game...

  • 英语听力:自然百科 神奇水世界 Water-14

    Today we take our control of water for granted. Modern civilization couldn't exist without it. But there is still only a finite amount of water to go around. In many parts of the world, scarcity has led to a bitter struggle for control over the avail...

  • 英语听力:自然百科 神奇水世界 Water-13

    But as it grew, the Khmer Kingdom faced the stumbling block. When the monsoon finished each year, the fish and water would vanish. So each year, the inhabitants were plunged into drought and hunger. The Khmer rules off the challenge magnificently. Th...

  • 英语听力:自然百科 神奇水世界 Water-12

    And this was their greatest achievement: the legendary temple complex of Angkor. You know, a real sense of age of this place here. This was built over 1,200 years ago. At a few places right here you can see a show of the age that faces are all worn,...

  • 英语听力:自然百科 神奇水世界 Water-11

    It's just magic. When you follow it, you can see that this is the perfect union of the tree and the villages. The locals have kind of trained the roots, kind of guided them through and netted them together. What they've done here is they've grabbed s...

  • 英语听力:自然百科 神奇水世界 Water-10

    The key was adaptation. Rain. A familiar occurrence in many parts of the world. But this is rain at its most extreme, the monsoon. The significance of the monsoon isn't the human discomfort, but how the people here have learned to live with it. I'm t...

  • 英语听力:自然百科 神奇水世界 Water-9

    But the human's struggle to pin down water is forever balanced on a knife edge. Get that balance wrong, and you pay the price. For all their ingenuity, the Garamantes over-exploited their ground water. Eventually, it ran out, and so did their civiliz...

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