代词是高中阶段英语语法教学的重点之一,同时也是学生学习的难点。本文主要讲述替代词、可数名词、不可数名词、同位语的最基本的用法,只要同学们掌握了这些替代词的基本用法,这类题便能由难变易。 Pronouns are one of the focuses of English grammar teaching in senior high school and also a difficult point for students to learn. This article focuses on the most basic usage of alternative words, countable nouns, uncountable nouns, and appositives. As long as students have mastered the basic usage of these alternative words, such questions can be easily changed.