推断题既是考查知识,又是考查能力的综合题目.它具有条件隐含、综合性极强、思维容量大等特点.近十多年来中考试题关于推断题的命题要求越来越高,知识覆盖面也越来越广,试题越来越新颖,考生失分率也最高.但只要我们认真分析,就不难发现推断题是可以攻克的.这类题目大多需要依据已知的实验步骤、现象,再对照物质的性质,逐层剥离,抓住题目中的关键环节,或顺推或逆推或讨论验证,层层剖析,得出结论.笔者结 Inference problem is not only a test of knowledge, but also a comprehensive test ability test.It has the conditions of implication, comprehensive, thinking capacity and so on.Recent years of the senior high school entrance examination questions on the inference of the proposition demanding higher and higher, knowledge Coverage is also getting wider and wider, more and more innovative questions, the highest loss rate of candidates, but as long as we carefully analyze, it is not difficult to find inferred problems can overcome these problems are mostly based on known experimental steps, the phenomenon , And then control the nature of the material, peel off layer by layer, to seize the key links in the subject, or by push or reverse push or discussion verification, layer analysis, draw conclusions.