有人曾经做过这样一个记录:一个婴儿坐在桌子旁,桌上有一个他喜爱的玩具,玩具离很慢远,用手拿不到旁边放着一根木棍。起初,孩子尽全力用手去拿玩具,但很快,他相信这种努力是徒劳的之后,便撇开了玩具。这时,他又发现了一根木棍,于是他拿起木棍,开始用手转动它。慢慢地,棍子头碰着了玩具,玩具移动了孩子马上就发现了这个情况,他的注意力又集中到玩具上。现在他已经开始故意使玩具移动了,经过一系列尝试,他越来越明显地做出使玩具靠近的动作。最后,想要的玩具终于拿到手了。 Someone once did such a record: a baby sitting at the table, the table has a favorite toy, the toy is very far away, can not get the hand next to a wooden stick. At first, the child tried his best to get the toy by hand, but soon after he believed that such effort was futile, he left aside the toy. At this moment, he found a stick again, so he picked up the stick and began to turn it by hand. Slowly, stick head touches the toy, the toy moved the child immediately discovered this situation, his attention also focused on the toy. Now that he has begun to deliberately move the toy, after a series of attempts, he becomes more and more obviously making toys. Finally, the toy you want finally got it.