“一个和尚挑水吃,两个和尚抬水吃,三个和尚没水吃”.这是流传民间的一个有趣故事.之所以没水吃,是因为三个和尚谁也不肯多出力,谁也不肯先出力.没水吃终归不行,同学们学过了简单机械后,就可以利用杠杆知识,为三个懒和尚设计出一个抬水吃的方法,且各自既不吃亏, “A monk carries water to eat, two monks carry water to eat, and three monks have no water to eat.” This is an intriguing story that spreads among the people. The reason why there is no water to eat is because the three monks who are not willing to contribute more, who I also refused to work hard. No water could be eaten after all. After the students had learned simple machinery, they could use leverage to design a method of carrying water for the three lazy monks without losing each one.