79-1.
Bird flu may not have become the threat to humans that some predicted because our noses are too cold for the virus to thrive, UK researchers say.
英国研究人员称，禽流感可能对人类没有威胁，因为我们的鼻子里温度低，病毒没法繁殖。
79-2.
Researchers estimate that the half-billion people alive in the 1990s will live an average of 5 years less than their southern counterparts because they breathed dirtier air.
研究人员估计，因为呼吸更污浊的空气，上世纪90年代居住于北方的5亿居民要比南部的居民平均少活5年。
79-3.
Can heterosexual men and women ever be “just friends”? Daily experience suggests that non-romantic friendships between males and females are not only possible, but common.
异性恋男女之间有没有纯粹的友谊？日常经验告诉我们，男女之间纯粹的友谊不仅仅是可能的，而且还很普遍。
79-4.
A former British taxi driver has become the first person in the world for 3000 years to be mummified in the same way as the pharaohs.
一位英国出租车司机去世后，被制成木乃伊，成为3000年来首个仿照古埃及人制作木乃伊法老的方法制作的木乃伊。
79-5.
Millions of people in Asia will see the longest total solar eclipse this century as swathes of India and China are plunges into darkness.
亚洲数百万人将会看到本世纪持续时间最长的一次日全食，届时印度和中国将会被笼罩在黑暗之中。
