英语听力：探索发现 2012-12-05 美洲大平原 American Serengeti—17

 And all this meat in one small area attract the scavenger¹, the short-faced bear. Led by his super sensitive nose, his long limbs carry him many miles a day in search of carrion². He's picked up a scent³, but where's the carcass? Sometimes the smaller, speedier scavenger gets there first, on this occasion a coyote.

 

Right now the short-faced bear will take whatever he can get. He hasn't had a decent meal in days, and needs at least one good-sized carcass every week to stay alive. This time the coyote's left him nothing but the skeleton. But with his huge, bone-crunching jaws⁴, the bear can crack them open for the marrow⁵ locked inside.

 

With water so scarce elsewhere, animals from miles around converge⁶ here in the valley, which is good news for the local lions—their pride territory is now overflowing⁷ with food.

 

Once the midday heat subsides⁸, the females rouse themselves to hunt.

1 scavenger   

n.以腐尸为食的动物，清扫工

参考例句：

• He's just fit for a job as scavenger.他只配当个清道夫。
• He is not a scavenger nor just a moving appetite as some sharks are.它不是食腐动物，也不像有些鲨鱼那样，只知道游来游去满足食欲。

2 carrion   

n.腐肉

参考例句：

• A crow of bloodthirsty ants is attracted by the carrion.一群嗜血的蚂蚁被腐肉所吸引。
• Vultures usually feed on carrion or roadkill.兀鹫通常以腐肉和公路上的死伤动物为食。

3 scent   

n.气味，香味，香水，线索，嗅觉；v.嗅，发觉

参考例句：

• The air was filled with the scent of lilac.空气中弥漫着丁香花的芬芳。
• The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香。

4 jaws   

n.口部；嘴

参考例句：

• The antelope could not escape the crocodile's gaping jaws. 那只羚羊无法从鱷鱼张开的大口中逃脱。
• The scored jaws of a vise help it bite the work. 台钳上有刻痕的虎钳牙帮助它紧咬住工件。

5 marrow   

n.骨髓；精华；活力

参考例句：

• It was so cold that he felt frozen to the marrow. 天气太冷了，他感到寒冷刺骨。
• He was tired to the marrow of his bones.他真是累得筋疲力尽了。

6 converge   

vi.会合；聚集，集中；(思想、观点等)趋近

参考例句：

• The results converge towards this truth.其结果趋近于这个真理。
• Parallel lines converge at infinity.平行线永不相交。

7 overflowing   

n. 溢出物,溢流 adj. 充沛的，充满的 动词overflow的现在分词形式

参考例句：

• The stands were overflowing with farm and sideline products. 集市上农副产品非常丰富。
• The milk is overflowing. 牛奶溢出来了。

8 subsides   

v.（土地）下陷（因在地下采矿）( subside的第三人称单数 )；减弱；下降至较低或正常水平；一下子坐在椅子等上

参考例句：

• Emotion swells and subsides. 情绪忽高忽低。 来自《现代汉英综合大词典》
• His emotion swells and subsides. 他的情绪忽高忽低。 来自《现代英汉综合大词典》