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

发表于:2018-12-03 / 阅读(200) / 评论(0)

自然百科2011年

英语听力：自然百科海洋天堂大堡礁:堡礁内外—32

Sorry,there is not text temporarily, Please help tingroom to look for it! 如果您能找到更好的听力原文，请发贴到听力原文收集区，您将会获得10到30积分的奖励! Thank you！

发表于:2018-12-03 / 阅读(144) / 评论(0)

自然百科2014年

英语听力：自然百科海洋天堂大堡礁:堡礁内外—30

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自然百科2014年

英语听力：自然百科徒步南非之克鲁格公园 The Kruger—8

It was a very thought of wandering these mountains that first attracted Brian. He's remained a firm fan even since. He's even written a book about the hotel's history and his experience here.-It's so different from anything else you can find anywhere

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自然百科2012年

英语听力：自然百科徒步南非之克鲁格公园 The Kruger—9

Day two, and rather worryingly, the weather doesnt seem to be improving. It also requires a painfully early start. Its an 18-kilometer round trip from the hotel to the summit, which most hikers tackle in one go, averaging eight to nine hours of stead

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自然百科2012年

英语听力：自然百科徒步南非之克鲁格公园 The Kruger—10

It's on foot. It's amazing how quickly you find yourself in isolation. There's nobody here, just the baboons. The morning mist seems to be pretty determined not to lift. No sooner have I begun to make progress on my walk, then the path ahead goes com

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自然百科2012年

英语听力：自然百科徒步南非之克鲁格公园 The Kruger—11

An unexpected break in the weather means I am able to make one more stab at the summit. -It's difficult to believe this is the same spot as yesterday without the rain. You can actually see. And look at that vista! With the spring back into my stab, t

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自然百科2012年

英语听力：自然百科徒步南非之克鲁格公园 The Kruger—12

Oh Julia,take a good look on the moutain.This is the last time you gonna see a full view of Cathedral Peak up until we get very close to it.And the best.So enjoy it.-How can you not enjoy it.-Enjoy it.Take it all in.-Nice cool bit of cloud. There's l

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自然百科2012年

英语听力：自然百科徒步南非之克鲁格公园 The Kruger—13

This is the halfway point of my walk today. It's been three hours since I started it out, some ideal spot for rest. I'm finally in the upper Berg.-So this is where people do in origins. -Yes. -Now I wish it's today though. I've come to realize this i

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自然百科2012年

英语听力：自然百科鲨鱼湾的海豚—27

Can you see that, there's a dolphin, dolphins, right down there. To spot dolphins immediately was really unexpected. Come back, let's go, quick ,quick. Ben and Nick, trying catch up with the dolphins. But soon find themselves tracing them up and down

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自然百科2013年

英语听力：自然百科海洋天堂大堡礁:堡礁内外—31

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自然百科2014年

英语听力：自然百科北极熊冰上间谍 Spy_Bear—16

But it's not enough. For a hunting bear, it doesn't get much worse than this. The seal could hardly fail to notice. But this battle-hardened seal is in no rush. Finally he gains some purchase, he's back in the game. He still believes he's in with a c

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自然百科2010年

英语听力：自然百科淘金沉船

Archaeologists in Canada's Yukon have found whats believed to be the only untouched shipwreck from the Klondike Gold Rush, made famous by writers Jack London and Robert Service. Underwater video, taken with a remote operated vehicle, shows the remark

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自然百科2009年

英语听力：自然百科纪念《物种起源》面世150周年

One of the most iconic animals of the Galapagos Islands is the Giant Tortoise. Charles Darwin wrote of this tortoise in his famed report , Origin of Species, published 150 years ago this month. The differences between the tortoises from island to isl

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自然百科2009年

英语听力：自然百科马尔代夫的未来

As dawn breaks, fishermen work furiously to hauling tuna. But while the fish may seem plentiful, there is trouble on the horizon. Fishermen were the fist to notice the alarming effects of rising sea temperatures. Beneath them the coral reefs are dyin

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自然百科2009年

英语听力：自然百科喜马拉雅冰川融化加剧

Mount Everest looms in the distance. Its snow and ice-capped peak gleams in the sunshine. The Himalayan glacier is a fragile ecosystem, which environmentalists warn could soon disappear. Greenpeace says that as global warning increases temperatures a

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自然百科2009年

英语听力：自然百科罕见的树袋鼠 -1

High in the northern mountains on the island of New Guinea, in the cloud forest lives an elusive animal found no where else in the world. (Hello!) With an endearing face and a thick fur, the Matschies tree kangaroos of Papua New Guinea（巴布新几内

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自然百科2009年

英语听力：自然百科罕见的树袋鼠 -2

Papua New Guinean Gabriel Porolak handles the captured male. He is the Tree Kangaroos Conservation Program Research Coordinator and a key figure in the local preservation effort. (Six kilograms.) The captured animal is weighed and examined by veterin

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自然百科2009年

英语听力：自然百科海洋天堂大堡礁:堡礁内外—28

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自然百科2014年

英语听力：自然百科佛罗里达州的温泉（四）

The cormorant gives up for now. The bird has been foiled by the clarity of the water, the very thing that enables the manatee to thrive. The light through these waters helps plants flourish, and manatees are strict vegetarians. They can eat a hundred

发表于:2018-12-03 / 阅读(191) / 评论(0)

自然百科2009年

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