说明文有事物说明文和事理说明文。事理说明文由论点、论证、结论构成。教学中教师引导学生把握文章结构,了解事例、事理作为论据时要突出典型性,要简明扼要。事物说明文样式较多,引导学生从文本学习中发现基本言语规律,提升阅读、表达能力是教学重点所在。事物说明文的说明对象是具体事物,通过对具体事物的形状、构造、性质、特点、用途等作客观而准确的说明,使读者了解、认识这个或这类事物。事物说明文可划分为写景状 Explanatory notes and affair explanatory text. The explanation of the matter consists of arguments, arguments and conclusions. Teaching teachers to guide students to grasp the structure of the article, understand the case, as an argument to be prominent when the argument, to be concise. The style of things is more, to guide students to find the basic rules of speech from text learning, improve reading, communication skills is the focus of education. The description of things is the object of specific things, through the shape of the specific things, structure, nature, characteristics, purpose and so objectively and accurately described, so that readers understand and recognize this or these things. Things description can be divided into writing scenery