文章列表

• 1.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—18
• It's an astounding mechanism, but it looks like it's being overwhelmed. Recently, the coral has been telling us that its had enough. Because when it o...
• 2.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—17
• One of the early methods to getting rid of a starfish was to cut them in half, then killing them with a knife, but starfish has this amazing property ...
• 3.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—16
• The pearl luggers then turned their attention to something else, a much bigger target. The reef has always provided a great haven for large animals, l...
• 4.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—15
• Today, the elements that support the reef are in fine balance--sun, wind and waves. But it doesn't take much to tip the balance, plummeting this huge ...
• 5.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—14
• These destructive waves are as much a part of the reefs life cycle as the animals that inhabit it, and the corals that make it. But out here, there is...
• 6.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—13
• Eighteen million years ago, it arrived in warm, tropical waters. Only then could the world's greatest reef be born. Australia's epic journey may have ...
• 7.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—12
• All lava has a chemical signature that tells scientists where it came from and when it was erupting. The higher up the old volcano, the more pristine ...
• 8.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—11
• So we're looking at the core of the volcano which is referred to as Mount Warning. That peak extends up to just a little over 1, 1 00 meters. But when...
• 9.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—10
• But the wonky holes will never be completely covered up, because coral cant grow in freshwater. Theyll remain an indelible reminder of the reef's past...
• 10.英语听力：自然百科 澳大利亚大堡礁 Great Barrier Reef—9
• Here it is. Got it, I think. A spring. And whats actually coming out of this is fresh water. You can drink. You see this stuff bubbling out? This is w...