英语听力：探索发现 2014-05-14 BBC 地平线：陨石的真相-2
时间：2014-08-26 08:48:44
搜索关注在线英语听力室公众号：tingroom，领取免费英语资料大礼包。
（单词翻译）
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.
分享到：
Error Warning!
出错了
Error page: /index.php?aid=273516&mid=3
Error infos: Got error 28 from storage engine
Error sql: select `l`.`tag`,`l`.`index`,`l`.`level_id`,`b`.`id`,`b`.`word`,`b`.`spell`,`b`.`explain`,`b`.`sentence`,`b`.`src` from `new_wordtaglist` `l` left join `new_word_base` `b` on `l`.`tag`=`b`.`word` where `l`.`arc_id`='273516' and `l`.`level_id`>='' group by `b`.`word` order by `l`.`index` asc
