The expository writing contains the beauty of real knowledge, harmony, accuracy, concision and vividness. Teachers should realize and make use of them in their teaching.

• 说明文中蕴含有真知美、形式与内容高度统一的和谐美、语言上的准确美、简明美、生动美,教师应认识并利用这些美育因素,搞好说明文教学。