A、 About 90, 000.
B、 About 100, 000.
C、 Several hundred.
D、 About 5, 000.

【正确答案】 B

【答案解析】解析：根据录音中的“Some 100，000 stock animals succumbed and about 90，000 people were infected，hundreds fatally in five countries．”可知，本题答案为B。

A、 Warning from Goddes Flight Centre.
B、 Warning from Health Ministry.
C、 Experience gained from the 1997 outbreak.
D、 Proper and prompt aid from NASA.

【正确答案】 D

【答案解析】解析：从录音中“The difference was that the second time around there was warning．…part of America’s space agency, NASA，told the authorities in Kenya that they had a problem．They told them again in October．And again in November．”可知，第二次的区别在于有来自NASA及时而准确的警告。故本题答案为D。

A、 Distributing mosquito nets.
B、 Persuading people not to slaughter animals.
C、 Urging people not to eat animals.
D、 Dispatching doctors to the epidemic-stricken areas.

【正确答案】 D

【答案解析】解析：从录音中“…the Kenyan health ministry had dispatched teams to the area to distribute mosquito nets and urge village leaders and religious authorities to stop people slaughtering and eating animals．”可知，只有D选项不是制止瘟疫肆虐的举措。

A、 The higher surface temperatures in the equatorial part of India.
B、 The short-lived mosquitoes that were the hosts of the viruses.
C、 The warm and dry weather in the Horn of Africa.
D、 The heavy but intermittent rains.

【正确答案】 D

【答案解析】解析：从录音中“These higher temperatures brought heavy and sustained rains，cloud cover and warmer air to much of the Horn of Africa”可知，D是正确答案，B选项应该改成long-lived mosquitoes。

A、 Warning from NASA.
B、 How to treat Rift Valley Fever.
C、 The disastrous effects of Rift Valley Fever.
D、 Satellites and global health—remote diagnosis.

【正确答案】 D

【答案解析】解析：该录音主要内容是从NASA给予肯尼亚及时迅捷的警示，使其在2007年瘟疫爆发的时候避免了10年前的厄运。因此D选项是正确答案(卫星和全球健康——远程诊断)。