英语听力文摘 English Digest 735 不安的大象

Disturbed Elephants

Here’s a gruesome hypothetical: If you and your family were rounded up, and you were forced to watch as older relatives were killed, how would it affect you? Needless to say, you’d be horrified¹. You’d probably also be deeply disturbed for a long time afterwards. Maybe forever.

Regular Culling²

For some non human species, that grisly scenario³ is all too common. For instance, up until a few decades ago elephant populations were regularly culled⁴. That is, family groups were herded⁵ into a tight space so that hunters could shoot and kill the older individuals. The practice was actually meant to help elephants, because park officials worried they’d grow too numerous and overrun the area.

But research has shown that the surviving elephants are often deeply disturbed. One study found that elephants from a culled group had serious problems with social and other behaviors. For example, a group of orphaned⁶ male elephants killed more than one-hundred rhinoceroses⁷ over a decade — behavior that’s highly abnormal.

Lose Elders, Lose Educators

Another study found that culling survivors⁸ responded chaotically⁹ to elephant calls broadcast by scientists in a nearby jeep. The animals seemed at a loss — sometimes taking defensive¹⁰ measures, but not necessarily in response to calls from alien or more socially dominant¹¹ females, as they normally would.

Scientists speculate that’s because elephants typically learn these important behaviors from their elders. And when those elders are culled or poached, the younger elephants may not learn how to respond to potential threats. Elephants that don’t know how to defend themselves have less chance of surviving and reproducing. Although culling is no longer practiced, poaching is. And it may have similar effects.

1 horrified   

a.(表现出)恐惧的

参考例句：

• The whole country was horrified by the killings. 全国都对这些凶杀案感到大为震惊。
• We were horrified at the conditions prevailing in local prisons. 地方监狱的普遍状况让我们震惊。

2 culling   

n.选择，大批物品中剔出劣质货v.挑选，剔除( cull的现在分词 )

参考例句：

• The mathematicians turned to culling periodic solutions. 数学家们转而去挑选周期解。 来自辞典例句
• It took us a week to find you, a week of culling out prejudice and hatred. 我们花了一个星期的时间找到你们，把偏见和憎恨剔除出去。 来自演讲部分

3 scenario   

n.剧本，脚本；概要

参考例句：

• But the birth scenario is not completely accurate.然而分娩脚本并非完全准确的。
• This is a totally different scenario.这是完全不同的剧本。

4 culled   

v.挑选，剔除( cull的过去式和过去分词 )

参考例句：

• The herd must be culled. 必须有选择地杀掉部分牧畜。 来自辞典例句
• The facts were culled from various sources. 这些事实是从各方收集到的。 来自辞典例句

5 herded   

群集，纠结( herd的过去式和过去分词 )； 放牧； （使）向…移动

参考例句：

• He herded up his goats. 他把山羊赶拢在一起。
• They herded into the corner. 他们往角落里聚集。

6 orphaned   

[计][修]孤立

参考例句：

• Orphaned children were consigned to institutions. 孤儿都打发到了福利院。
• He was orphaned at an early age. 他幼年时便成了孤儿。

7 rhinoceroses   

n.钱，钞票( rhino的名词复数 )；犀牛(=rhinoceros)；犀牛( rhinoceros的名词复数 )；脸皮和犀牛皮一样厚

参考例句：

• Rhinoceroses and dragons for once will let us walk in peace. 犀牛与龙安歇，让我们能平静地行走。 来自互联网
• Although the rhinoceroses are very heavy, they can run very fast. 犀牛虽然体型笨重，但仍能以相当快的速度行走或奔跑。 来自互联网

8 survivors   

幸存者，残存者，生还者( survivor的名词复数 )

参考例句：

• The survivors were adrift in a lifeboat for six days. 幸存者在救生艇上漂流了六天。
• survivors clinging to a raft 紧紧抓住救生筏的幸存者

9 chaotically   

参考例句：

• His thoughts churned chaotically in his brain like snowflakes whirling about in the north wind. 头脑里，情思弥漫纷乱像个北风飘雪片的天空。 来自汉英文学 - 围城
• In metal the atoms are arranged not chaotically but in even rows, forming a crystal lattice. 在金属里，原子并不是杂乱无章地排列而是排成平整的行列，构成一个晶格。 来自辞典例句

10 defensive   

adj.防御的；防卫的；防守的

参考例句：

• Their questions about the money put her on the defensive.他们问到钱的问题，使她警觉起来。
• The Government hastily organized defensive measures against the raids.政府急忙布置了防卫措施抵御空袭。

11 dominant   

adj.支配的，统治的；占优势的；显性的；n.主因，要素，主要的人(或物)；显性基因

参考例句：

• The British were formerly dominant in India.英国人从前统治印度。
• She was a dominant figure in the French film industry.她在法国电影界是个举足轻重的人物。