BBC在线收听下载:尼日利亚球迷观看世界杯地点发生爆炸案

短语讲解：

1. A source told the BBC that an army helicopter responded to the attack firing rockets, one of which hit a large oil storage tank setting it on fire.

set on fire 使燃烧; 使情绪激动
例句：By a humble spark a town is set on fire . 
星星之火，可焚城。 

2. He said the militants were now in control of the area.

in control of 控制，管理
例句：He was in control of the car. 
他负责这辆小汽车。 

3. The spokesman for the oil ministry in Baghdad said he did not know who controlled the refinery, adding if it were to close down, it would affect power supplies in the country.

close down （使）停业; （使）停产
例句：They will have to close down soon. Business is too bad. 
他们将不得不歇业，生意太坏了。 

4. President Rouhani's pledge to protect the holy Shiite shrines in Iraq is at least partly a response to threats by the Jihadist group ISIS to destroy those sites.

at least 至少
例句：At least that's the theory.
至少理论上是这样。

5. But other Sunni militants in Iraq have so far distanced themselves from the Jihadists' most inflammatory rhetoric.

so far 到目前为止; 迄今为止
例句：So far, the strategy has worked.
到目前为止，这个策略很有效。