说明文写作是中学生的一项重要学习内容。为了让同学们对其知识及技巧形成系统而简明的印象,同时考虑到便于记忆,我特编写了说明文写作歌:说明文,要功底,熟事物,明事理。审对象,抓特征,理顺序,方法清。时空逻,变化多,采用时,要灵活。下定义,举例子,分类别,多思考。打比方,作比 Expository writing is an important learning content for middle school students. In order to allow students to form a systematic and concise impression of their knowledge and skills, and at the same time consider it convenient to remember, I have specially written an expository writing song: expository text, basic knowledge, familiarity, and reasoning. Examine the object, grasp the characteristics, order, and method. Time and space logic, change, use flexibility. Defined, examples, subcategories, and more thoughts. For example, comparison