当你把一个苹果举到孩子头上时，孩子一定翘起脚伸出小手去够，够不着时，便会跳一下再够，直到够着为止。而当你把苹果吊到天棚上时，便连手都不肯举了。具体地告诉孩子认真完成作业，要比告诉孩子好好学习，将来才能考上大学奏效。每个人差不多都有这样的体验：面前有一个空 When you lift an apple to your child’s head, your child must lift his or her foot and reach out to the little hand. When enough time is spent, he will jump enough to hold it. And when you hang the apple onto the ceiling, you are not willing to give it up. Specifically told the child to finish homework conscientiously, than to tell the child to study hard, in the future can be admitted to the university to work. Almost everyone has this experience: there is an empty front