英语听力：探索发现 2014-05-14 BBC 地平线：陨石的真相-2

 This isn’t the first time it’s happened. Over thelast few years, scientists have examined many other devastating¹ impacts in theEarth’s past. Using this knowledge, I want to answer the key questions that theChelyabinsk meteor strike raises. 

 

Where did this alien rock come from?

 

When will the next one strike?

 

And can we do anything to protect ourselves?

 

A fortnight after the impact, the meteor strike isstill big news in Russia. In Chelyabinsk there is a popular new winter pastime,hunting for any fragments of the meteorite² that remain. 

 

Scientists have also been out in force, particularlyaround Lake Cherbarkul where there is evidence of an impact in the ice. So manyfragments have been found here. It’s been called the Cherbarkul meteorite. Theyare trying to piece together exactly what happened because the fact is no onein the scientific world saw this coming.

1 devastating   

adj.毁灭性的，令人震惊的，强有力的

参考例句：

• It is the most devastating storm in 20 years.这是20年来破坏性最大的风暴。
• Affairs do have a devastating effect on marriages.婚外情确实会对婚姻造成毁灭性的影响。

2 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。