CNN news 2011-10-08 加文本

词汇讲解：

1. plot v. 密谋
例句：They were plotting how to obtain the necessary information.
他们正在策划如何获取必要的情报。

2. threat n. 可能造成威胁的人[事, 想法]
例句：The use of nuclear weapons is a horrible threat to the species.
核武器对人类是一个严重威胁。

3. undercover adj. 暗中进行的;秘密做出的;私下的
例句：A federal judge upheld the undercover methods used in the case.
一位联邦法官主张在此案中使用秘密的方法。

4. arrest vt.逮捕; 拘捕
例句：Policemen have authority to arrest lawbreakers.
警察有权逮捕犯法者。

5. evidence n. 证词; 证据; 迹象
例句：There wasn't enough evidence to prove him guilty.
没有充分的证据证明他有罪。

6. severe adj. 严重的, 剧烈的
例句：There is a severe shortage of fuel.
燃料严重短缺。

7. outbreak n. 爆发, 突然发生
例句：At the outbreak of the war he lived in London.
战争爆发时他住在伦敦。

8. contaminate vt. 弄脏;污染;毒害
例句：The water was contaminated.
这水被污染了。

9. doubt n. 怀疑, 疑虑
例句：There is no room for doubt.
没有怀疑的余地。