解题的关键首先在看懂、看清题目的意思,在理解题意的基础上再确定应用何种解题方法和解题技巧.研究表明对题意看似相似,实则不同的一类题目最易引起学生概念的混淆,不能应用正确的解题方法.对这类题在复习中需要进行归类、比较,做到心中有数.下面试举例分析,希望能对大家有所启发和帮助. The key to problem solving is to first read and understand the meaning of the topic, and then to determine what the problem-solving method and problem-solving technique should be applied on the basis of understanding the meaning of the problem. The research shows that the intention of the problem seems similar, but the actual problem is different. The most likely to cause the confusion of the concept of students, can not apply the correct method of solving problems. This type of questions in the review needs to be classified, compared, to be aware of. The following examples of analysis, hope to be able to give everyone inspiration and help.