39.A推理判断题。根据最后一段“because their body structure is very different from ours, and therefore difficult to understand,”可知，蝴蝶的身体构造与人的有着很大的不同，因此也难以完全理解蝴蝶。人们还需要更多的研究来彻底了解蝴蝶这种昆虫，故选A。

　　40.D主旨大意题。根据“Butterflies have large compound eyes ...Butterflies have a very well-developed sense of smell ...Butterflies' feet have sense organs that can taste the sugar ...Butterflies don't have ears.”可知，文章主要写了蝴蝶的感觉器官，故选D。

　　考点：生物类短文阅读

　　第二节（共5小题；每小题2分，满分10分）【重庆一中2015-2016学年秋期高三上入学测试】

　　根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，选项中有两项为多余选项。Traveling is what makes your life complete . Finding balance isn’t easy yet it is worth trying . There are hundreds of reasons why you should travel . Here are only 4 of them :

　　1.

　　41

　　Be spontaneous and travel whenever you feel like leaving your daily routine . Waiting for certain time of the year so that you could spoil yourself is wrong .

　　2. Your company won’t bankrupt or disappear if you leave it for a week or two .

　　There are plenty of people who can substitute you and do your job while you are away .

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