英语听力：探索发现 2014-07-04 BBC 地平线：陨石的真相-23

 As the divers¹ have explored further, they discovered the Siluteis are actually part of a huge complex of tounels and caves.In fact, when you look from above, you can see Senluties scattered² across hundreds of kilometers.And when they were mapped, it becomes clear they followed a distinctive³ circular course through the jungle.They mark the ring of giant crater⁴.Scientific instruments showing the structure of underlined rock has been deformed,revealing the bounderies of a clossil meteorite⁵ impact crater.Wa, it's amazing, cavern⁶ is a part of bigger story, a much bigger story.65million years ago, this was the site of one of catastrophic impact in Earth's history.It became known as the Chiks meteorite landed here, and that triggered the extinction⁷ of dinosaors.

1 divers   

adj.不同的；种种的

参考例句：

• He chose divers of them,who were asked to accompany him.他选择他们当中的几个人，要他们和他作伴。
• Two divers work together while a standby diver remains on the surface.两名潜水员协同工作，同时有一名候补潜水员留在水面上。

2 scattered   

adj.分散的，稀疏的；散步的；疏疏落落的

参考例句：

• Gathering up his scattered papers,he pushed them into his case.他把散乱的文件收拾起来，塞进文件夹里。

3 distinctive   

adj.特别的，有特色的，与众不同的

参考例句：

• She has a very distinctive way of walking.她走路的样子与别人很不相同。
• This bird has several distinctive features.这个鸟具有几种突出的特征。

4 crater   

n.火山口，弹坑

参考例句：

• With a telescope you can see the huge crater of Ve-suvius.用望远镜你能看到巨大的维苏威火山口。
• They came to the lip of a dead crater.他们来到了一个死火山口。

5 meteorite   

n.陨石；流星

参考例句：

• The meteorite in Jilin Exhibition Hall is believed to be the largest in the world.吉林展览馆的陨石被认为是世界上最大的。
• The famous Murchison meteorite smashed into the Australian ground in 1969.1969年著名的默奇森陨石轰然坠落在澳大利亚。

6 cavern   

n.洞穴，大山洞

参考例句：

• The cavern walls echoed his cries.大山洞的四壁回响着他的喊声。
• It suddenly began to shower,and we took refuge in the cavern.天突然下起雨来，我们在一个山洞里避雨。

7 extinction   

n.熄灭，消亡，消灭，灭绝，绝种

参考例句：

• The plant is now in danger of extinction.这种植物现在有绝种的危险。
• The island's way of life is doomed to extinction.这个岛上的生活方式注定要消失。