英语听力：自然百科 冰冻星球 前往地球尽头—18

 The relative of the woodlouse is the size of dinner plate. And this so- called sea spider has legs that expand half a meter. Now it's explorer's own revealing other worlds that lie hidden beneath the ice on land. These smoking tars¹ are the gateway² to a network of caves. Each contains extraordinary assembly of ice cystals, unlike any other on earth. Like snow flakes³, every cystal is unique. Some are taller than a man. Others are thought to barbor life seeded by strange bacteria that thrive in this extreme conditions. 

 

The breeze, the gently swaying of these cystals, isn't possible for making them. It's steam, from remote heart of Mount Alps, the most subtly volcano on our planet. It's now a thought that ice caves fringing this creator, may even be a home for hitherto unknown life forms. From this oasis⁴ of warmth at the edge of the continent, our journey continues inland towards the South Pole. The first great hurdle⁵, is the formidable Transantarctic Mountain Range. We're following the route taken by Scott and Amundsen, as they struggled to become the first humans to reach the South Pole.

1 tars   

焦油，沥青，柏油( tar的名词复数 )

参考例句：

• Around 280 degrees C, Volatile gases and flammable tars are released. 在大约摄氏280度，挥发性的气体和可燃焦被放出。
• Tars could be seen walking towards the harbor. 可以看到水手正在走向港口。

2 gateway   

n.大门口，出入口，途径，方法

参考例句：

• Hard work is the gateway to success.努力工作是通往成功之路。
• A man collected tolls at the gateway.一个人在大门口收通行费。

3 flakes   

小薄片( flake的名词复数 )； （尤指）碎片； 雪花； 古怪的人

参考例句：

• It's snowing in great flakes. 天下着鹅毛大雪。
• It is snowing in great flakes. 正值大雪纷飞。

4 oasis   

n.（沙漠中的）绿洲，宜人的地方

参考例句：

• They stopped for the night at an oasis.他们在沙漠中的绿洲停下来过夜。
• The town was an oasis of prosperity in a desert of poverty.该镇是贫穷荒漠中的一块繁荣的“绿洲”。

5 hurdle   

n.跳栏，栏架；障碍，困难；vi.进行跨栏赛

参考例句：

• The weather will be the biggest hurdle so I have to be ready.天气将会是最大的障碍，所以我必须要作好准备。
• She clocked 11.6 seconds for the 80 metre hurdle.八十米跳栏赛跑她跑了十一秒六。