认识和表达，是学生写作活动中的两个阶段。认识能力和表达能力（本文仅限于书面表达），是学生写作能力结构中的两个组成部分。认识，是学生对客观事物观察、感受、思考之后在头脑中所形成的看法。表达，是学生把自己对客观事物的认识，用文字反映出来。学生作文能否做到中心 Recognition and expression are two stages of student writing activities. Recognition and presentation skills (this article is written in writing only) are two components of a student’s writing ability structure. Recognition, is the students in the objective things to observe, feel, think in the mind formed by the views. Expression, is the students to understand their own objective things, reflected in words. Student writing can do center