近两个星期来,我的情绪一直处于极度的兴奋之中。事情是这样的: 那天早晨,四年级有位同学告诉我,他早晨起床穿衣服时,发现自己的裤子全湿了,仔细一看,原来是昨晚睡觉前把裤子放到椅背上后,不慎让裤脚落到了地面,而地面上刚好有一滩洗澡时溢出的水。他问我这是什么原因。当时我想,这不正是我们马上就要学习的“毛细现象”吗?于是我并没有马上告诉他答案,而是把全班同学召进 Nearly two weeks, my emotions have been in extreme excitement. Things like this: that morning, a grade four classmate told me that he got up in the morning to wear clothes and found his pants all wet, a closer look, the original last night before going to sleep on the back of the pants on the back, Accidentally let trousers fall to the ground, and the ground just had a beach when the water spilled. He asked me what is the reason. At that time, I thought, was not this the “capillary phenomenon” that we were going to learn right away? So I did not immediately tell him the answer but called the classmates