英语听力：探索发现 2014-05-11 BBC 地平线：陨石的真相-1

 For the residents of the Russian city of Chelyabinsk, the morning of Friday, February 15, 2013 began like any other. As they set off to work in what has become a craze throughout Russia, many recorded their journeys, but these cameras usually used for capturing minor¹ traffic incident, were about to record history. 

A fireball, brighter than the sun, appeared from nowhere. Before it's exploding with the power of 30 Hiroshimas. A minute later, a shockwave blew in the window of 4,000 buildings across the region. The broken glass are accounting² for most of the 1,200 injured. 

The people of Chelyabinsk have just experienced the most meteor strike for more than a century.

The meteor that exploded over Chelyabinsk is a spectacular reminder³ of how exposed our world is. And our earth is just a tiny planet in the vast, violent cosmos⁴. It's also a reminder of powerful impact that these alien rocks can have on the fate of our planet and on us.

1 minor   

adj.较小(少)的，较次要的；n.辅修学科；vi.辅修

参考例句：

• The young actor was given a minor part in the new play.年轻的男演员在这出新戏里被分派担任一个小角色。
• I gave him a minor share of my wealth.我把小部分财产给了他。

2 accounting   

n.会计，会计学，借贷对照表

参考例句：

• A job fell vacant in the accounting department.财会部出现了一个空缺。
• There's an accounting error in this entry.这笔账目里有差错。

3 reminder   

n.提醒物，纪念品；暗示，提示

参考例句：

• I have had another reminder from the library.我又收到图书馆的催还单。
• It always took a final reminder to get her to pay her share of the rent.总是得发给她一份最后催缴通知，她才付应该交的房租。

4 cosmos   

n.宇宙；秩序，和谐

参考例句：

• Our world is but a small part of the cosmos.我们的世界仅仅是宇宙的一小部分而已。
• Is there any other intelligent life elsewhere in the cosmos?在宇宙的其他星球上还存在别的有智慧的生物吗？