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初中热学中有关比值的问题较多 ,对此类题目多数学生感到做起来有困难 .但若结合各类热学比例题的特点 ,采取“三步走”的解题方法 ,则此类问题便迎刃而解 .“三步走”的解题方法即为 :第一 ,写出已知比例及已知量 ;第二 ,列出待求比例式或形成比例式 ;第三 ,代入已知量分析计?
There are many problems related to the ratio of junior high school students, and it is difficult for most students to do so on such topics. However, if we combine the characteristics of various types of thermal proficiency questions and adopt the “three-step” problem-solving method, such problems will be resolved. The “three-step” problem-solving method is: first, write the known ratio and known quantity; second, list the ratio to be calculated or form the ratio; third, substitute the known quantity of the analyzer?