开水房里,水蒸气四处弥漫,也只是模糊了人的眼睛;可同样是水蒸气,一旦进入机车锅炉,在熊熊烈火的作用下,便能推动火车、轮船前行。为什么同样都是水蒸气,差别会如此之大?因为适宜的压力能产生巨大的动力。看到这段话,我不由得想起上小学语文课《我的小桃树》时,老师提出的问题:“作者为什么要写小桃树在风雨中不断成长,这样写有什么用意?请大家都思考。”我还记得问题的答案:小桃树将风雨的压力转化为自身动力,让自己在风雨中茁壮成长。最后,老师还说:“你 Water chamber, water vapor everywhere, it is only blurred people's eyes; can be the same water vapor, once into the locomotive boiler, under the action of raging fire, can promote the train, ship forward. Why are the same water vapor, the difference will be so great? Because the appropriate pressure can generate great power. See this passage, I can not help but think of the primary school language class ”My Little Peach Tree“, the teacher raised the question: ”Why did the author want to write small peach growing in the wind and rain, so write what intention? . “I still remember the answer to the question: The little peach transforms the pressure of the wind and rain into its own motivation to thrive in the wind and rain. Finally, the teacher added: ”You