听力文本

It seemed a perfectly good theory, but the big test was:
这似乎是完美的理论，但关键问题是
was there any evidence that it actually had affected the dinosaurs?
是否有证据能证明这场事件真的影响了恐龙
Argentina was the perfect place to look.
阿根廷是寻找答案的理想地点
At first there were some tantalising similarities between the rocks in Yorkshire and in Patagonia.
首先，约克郡和巴塔哥尼亚的岩层有许多显著的相似点
They had found fossils from the bottom of a mid-Jurassic lake
他们找到了中侏罗世湖底生物的化石
and in these rocks they found one particular layer which was very strange.
他们发现岩石中的一个特殊地层非常奇怪

One fish here, another here, another one here and it's here there is another one,
这里有一条鱼，又是一条，又是一条，又是一条
so many fishes all together in the same layer.
所以很多鱼一起埋在同一个地层中
This layer was packed with hundreds of fish and they'd all died the same way: all the fish were twisted, contorted.
这个地层埋有数百条鱼，它们都有同样的死状：每条鱼都扭曲着，蜷成一团
They had clearly died a terrible death.
显然它们死得很惨
Was this then evidence of a mass extinction?
那么这是否就是大灭绝的证据呢？

词汇解析

1.the bottom of ……的底部
At the bottom of the ladder we have only ignorance, and at the top we have knowledge.
在阶梯的最底层，我们是无知的。当我们到达顶端时，我们就拥有了知识。

2.be packed with 挤满；塞满
On a sunny day in Trinity term, the slow-drifting river would be packed with jostling punts full of rowdy students.
在夏季学期阳光明媚的日子里，这条舒缓的河流上会挤满了相互碰撞的平底船，里面坐着大呼小叫的学生们。

视频及简介

没有哪种生物能像恐龙那样统治地球，但是恐龙的故事中却包藏着一个巨大的谜团，那就是它们如何称霸世界。