近年来,中考试题出现了借助分子、原子图示考查相关知识的一类新题型郾这类题简洁明了、直观形象,是考查同学们观察能力、理解能力、分析能力的好题型郾从图示的内容来看,该类试题大致可以分为四种类型郾一、借图表示物质以及分子的构成例1摇图1表示由气体分子构成的几种物质示 In recent years, there has been a new type of question in the examination questions that uses molecular and atomic graphs to examine relevant knowledge. Such questions are concise and intuitive, and are good questions for students to observe, understand, and analyze. According to the contents of the illustrations, this type of questions can be roughly divided into four types. First, the composition of matter and molecules is shown by a graph. Example 1 Figure 1 shows several substances made of gas molecules.