本文以中考试题为例,谈谈正确选择实际问题中函数图象的思想方法.一、熟知故事情景,探究变量关系,正确选择图象.例1乌鸦口渴到处找水喝,它看到了一个装有水的瓶子,但水位较低,且瓶口又小,乌鸦喝不着水,沉思一会后,聪明的乌鸦衔来一个个小石子放入瓶中,水位 This article takes the middle exam as an example to talk about the correct selection of functional images in practical problems. First, familiar with the story scene, explore the relationship between variables, and correctly select the image. Example 1 The crow thirst everywhere looking for water to drink, it saw a A bottle filled with water, but the water level is low, and the bottle mouth is small. The crow does not drink water. After a moment of contemplation, the wise crow holds a small stone and puts it into the bottle.