“能用语言、文字或图表描述常见的物质的物理特征”是《新课标》对我们提出的要求,即是要求我们一能根据相关条件作出对应图像,二有一定的识别图像的能力,三是能在图像中获得有用信息,从而解决实际问题.因而图像问题受到中考命题者的青睐,是近年来中考题中的一个新亮点.所谓图像问题一般包括实物图、示意图及函数 “The physical characteristics of common materials can be described in words, texts or diagrams ” is the requirement of the New Curriculum for us to ask us to make corresponding images according to the relevant conditions and to have a certain recognition of images Ability, and the third is to get useful information in the image, so as to solve the practical problems.Therefore, the image problem is favored by the senior high school entrance examination candidates, is a new bright spot in the senior high school entrance examination in recent years.The so-called image problems generally include the physical map, schematics and functions