纵向议论是指总论点、分论点之间以及分论点之间展开逐层深入的论述呈现层进式结构的论证方式。一般遵循“是什么——为什么——怎么样”的思路步步推进,纵向展开。一个有社会意义的问题的提出,一种倾向、一个观点的形成都有其历史原因、现状原因和将来原因,探讨这些原因,就构成了论证的纵向深入。纵向议论的思维发展是纵向延展的,文章各层次之间内容 Longitudinal discussion refers to the general argument, sub-points and sub-arguments between the depth of the layer-by-layer discussion of presentation of the structure of the argument. Generally follow the “what - why - how ” train of thought step by step, vertical expansion. The formulation of a social issue, a tendency, and the formation of a point of view all have their historical reasons, current and future causes, and discussing these reasons, so as to form the vertical extension of the argument. Longitudinal discussion of the development of thinking is vertical extension of the content of the article at all levels