重点单词：
1、blast
n. 爆炸；冲击波；一阵
vi. 猛攻
vt. 爆炸；损害；使枯萎
250 people were killed in the blast.
250人在这次大爆炸中丧生。
2、terrific
adj. 极好的；极其的，非常的；可怕的
There are some terrific programs out there, but they’re still too far and few between.
现在有了一些了不起的方案，但方案之间仍然还是相隔遥远且较少。
3、contaminate
vt. 污染，弄脏
Have any fish been contaminated in the Arctic Ocean?
北冰洋里有鱼受到污染了吗?
4、precaution
n. 预防，警惕；预防措施
vt. 警惕；预先警告
Could he not, just as a precaution, move to a place of safety?
难道他不能就当是一种防范搬到一个安全的地方去吗？
重点短语：
1、call out
唤起；出动；大声叫唤
Colombia has called out the army and imposed emergency measures.
哥伦比亚已下令召集军队，并强制执行了紧急措施。
考考你（翻译）：
1、有毒化学品有爆炸后进入空气的危险。
2、普吉特海湾周围海域的污染可能才开始。
3、银行还采取了另一预防措施.
答案下期公布：
上期答案：
1、I knew very well that the problem was more complex than he supposed.
2、His performance yesterday morning assured him of a record eighth medal.
3、You will have to go to your headquarters; the officers there will look after you.