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[知识要点]科技类文章是以说明为主要表达方式,以介绍科技知识为根本任务的,从文体上来说,属说明文。因此,阅读科技类文章,同样要抓住说明文的特征,把握说明文的结构和分析说明方法,具体有如下两方面。一、把握顺序,理清层次事物事理的本身是有其顺序的,反映事物事理的科技文,也必须注意说明的顺序。因此,阅读这类文章时必须把握它的说明顺序,才能理清其结构层次。说明的顺序主要有三种:1、时间顺序:按照事物发生、发展过程或按照生产技术、产品制作、工作程序作为说明顺序。
[Knowledge Main Points] Scientific and technical articles are based on explanations, and they are based on the introduction of scientific and technological knowledge. From a stylistic point of view, they are explanatory texts. Therefore, to read technical articles, we must also grasp the characteristics of the explanatory texts, grasp the structure of the explanatory texts, and analyze and explain the methods. Specifically, there are two aspects as follows. First, to grasp the order, sort out the level of things affairs itself is in its own order, reflecting the scientific affairs of the affairs of science and technology, must also pay attention to the order of description. Therefore, when reading such articles, it is necessary to grasp the order in which they are described in order to clarify their structural levels. The order of the explanation is mainly three kinds: 1. Time sequence: According to the occurrence of events, the development process or in accordance with production technology, product production, work procedures as the order of description.