本文具体分析了句中形式与意义不同一的种种情况 ,从逻辑角度对名词数形式、动词时间形式、否定形式和句子成分缺位的语义断定的种种机制进行了简要的阐释 ,具体解说了语言学习中适用逻辑类推方法的场合及其失灵的情况 In this paper, we analyze the situation of different forms and meanings in the sentence, and give a brief explanation of the mechanism of the semantic determination of the number of nouns, the time forms of verbs, the negative forms and the absence of sentence components from a logical point of view, Learning to apply logical analogy occasions and their failure