VOA慢速英语:Kennedy Center Announces Its Honorees for 2013

短语讲解：

1. But first, we look into the mystery of stange lights that sometimes glow above a mountain in North Carolina.

look into 调查；观察
例句：Here we take a look into the latest findings.
现在让我们看看最新的一些发现。

2. So far there is no clear explanation of where these lights come from or what they are made of.

so far 迄今
例句：Three have been released so far.
迄今三人已被释放。
be made of 用…造成（用于原材料显而易见的场合）
例句：The urn appeared to be made of some sort of bronze.
这瓮看起来像是某种青铜制的。

3. But when the fishing rods are cleaned and stored for the night, and the guitars, violins, and banjos are tuned, the mountain people of western North Carolina sing about a lonely old slave who came back from the grave searching for his master, night after night after night.

search for 搜索，搜寻
例句：The unemployed will search for jobs online.
失业者可以在网上寻找工作。

4. She helped break down the racial barriers in the opera world.

break down 分解；划分（以便分析）
例句：Cellulose is hard to break down.
纤维素是很难分解的。