阿伏伽德罗常数是高考中的高频考点之一,其题目设计渗透多个知识板块,是多个知识点考查的良好载体。由于命题多变,综合性强,学生在此考点容易失分,属于高考备考中的重难点,在教学中发现利用归类法能有效突破该考点。本文将阿伏伽德罗常数的考查方式归类为四大类型,并以例题形式展现:一、考查化学计量的基本公式和定理 Avogadro’s constant is one of the high-frequency test points in the college entrance examination. Its topic design penetrates into multiple knowledge blocks and is a good carrier for examination of multiple knowledge points. Because propositions are changeable and comprehensive, students are easily misunderstood in this test center, which is a difficult point in college entrance examination preparation. It is found in teaching that the use of classification methods can effectively break through the test center. This article classifies Avogadro’s examination methods into four types and presents them in the form of examples: 1. Basic formulas and theorems for examining stoichiometry