Reading：moth飞蛾，总是围绕人造（human made lights）灯光的地方甚至crush into lights。文章给出三个possible explanations； 1. 飞蛾有飞向moon的本领。为了躲避青蛙等predator，它总是往上飞也就是moon的所在方向，所以飞蛾可能误认为human made lights为moon。 2. 飞蛾飞向人造灯或许因为有heat。 3. 飞蛾也许误认为人造灯光是食物源food resource。 Listening: 认为阅读文章不准确，不能成立。 1. 如果飞向人造灯是为了躲避predator，那么飞一会儿就得了，干嘛还要围绕几个小时甚至更长。当危险褪去本就可以飞走了。 2. 飞蛾有辨别食物散发出来的carbon dioxide的本领。人造灯没有释放二氧化碳 3. 有些人造灯，例如fluorescent lights散发出来的heat少之又少，甚至少于nature.
None of the three hypotheses in the reading can effectively explain why moths fly around or even crush into human made lights. Firstly, from the perspective of avoiding predator, the professor states his doubt, because according to the lecture, if the moth did mistake human made lights for the moon and fly towards it to avoid predator, the moth could circle around the light for a while and fly away after the predator leaves. But in fact, the moth remains around the light for hours. Moreover, judging from the heat released by light, the professor holds a different view, as the lecture further illustrates that fluorescent lights release little heat, less than nature does. Last but not least, on the point of the instinct for food, the professor never fails to express his concern, because moth searches for food depending on the carbon dioxide released by food, and human made light never give off the chemical. (156 words)
