【正确答案】 B

【答案解析】[听力原文]
   Kenyan police say one person was killed and 26 injured in an explosion at a bus station in central Nairobi. The blast hit a bus about to set off for the Ugandan capital Kampala. Last July, the Somali group al-Shabab said it was behind the blasts in the Ugandan capital which killed more than 70 people. Will Ross reports from the Kenyan capital.
   The explosion happened beside a bus which was about to set off for an overnight journey from Nairobi to the Ugandan capital Kampala. Some eyewitnesses report that a bag was about to be loaded on board, but it exploded during a security check. Windows of the red bus were left smashed, and blood could be seen on the ground beside the vehicle. Just hours earlier, Uganda's police chief had warned of possible Christmas-time attacks by Somali rebels.
   What is the news report mainly about?
本题为主旨题。新闻报道通常开篇便直接点出报道的主题。录音首句说，肯尼亚警方公布关于一起在内罗比中部某巴士站发生的爆炸事件的情况(an explosion at a bus station in central Nairobi)，B基本是对此处录音关键信息的原词复现，故为答案。A出现在录音末尾，但录音结尾说的是乌干达警方早前发出的恐袭警告，与本篇新闻的主题“肯尼亚这次爆炸事件”不符。C出自录音前面部分，但这是发生在去年7月的事情，也非本篇新闻主题。D利用原词set off进行干扰。