英语听力：自然百科 北极熊 冰上间谍 Spy_Bear—10

 Every hunt presents a different challenge, so he plans a new strategy each time. He slinks into the water, using a channel between the ice floes to act as cover.

 

He swims, hardly making a sound, reaching six miles per hour at times. His front legs provide propulsion, while his back legs steer². His low profile makes him seem like a floating sliver³ of ice. He checks the seal's position and takes 

 

wind direction into account to work out his final approach. As he closes in, he makes a clever move, diving deep beneath the ice floe¹. He emerges on the blind side of the seal. 

 

So far, so good.

 

He can hold his breath for minutes and calculate the seal's exact position. 

 

Slo-mo reveals just how close he got. His skills show a remarkable⁴ intelligence at work. He hunted in all three dimensions, making full use of the opportunities offered by water and ice.

1 floe   

n.大片浮冰

参考例句：

• Two penguins are standing on ice floe.两只企鹅站在一块浮冰上。
• Somehow the seal manages to reach a tiny ice floe.不知何故，海豹设法到达了一块小浮冰上。

2 steer   

vt.驾驶，为…操舵；引导；vi.驾驶

参考例句：

• If you push the car, I'll steer it.如果你来推车，我就来驾车。
• It's no use trying to steer the boy into a course of action that suits you.想说服这孩子按你的方式行事是徒劳的。

3 sliver   

n.裂片，细片，梳毛；v.纵切，切成长片，剖开

参考例句：

• There was only one sliver of light in the darkness.黑暗中只有一点零星的光亮。
• Then,one night,Monica saw a thin sliver of the moon reappear.之后的一天晚上，莫尼卡看到了一个月牙。

4 remarkable   

adj.显著的，异常的，非凡的，值得注意的

参考例句：

• She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
• These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。