伴随着年龄的增长，到了中高年级的小学生观察及思维能力也变得日益活跃。这个时候，他们常会提出一些让人意想不到，叫人一时难以回答的离奇古怪的问题。诸如：为什么哑巴都是聋子？为何有的公鸡会变成母鸡？猫头鹰白天看不见东西，为何晚上却能捉老鼠？如此种种，不一而足。 With the growth of the age, pupils in middle and upper grades have become increasingly active in observation and thinking. At this time, they often come up with some bizarre questions that make people unexpectedly difficult to answer for a while. Why: dumb are deaf? Why some roosters will become hens? Owl can not see things during the day, why catch the mouse at night? So many, not enough.