narration 记叙文 To narrate is to give an account of event or a series of events. telling a story by presenting the details in the order in which they happened in its broadest sense, narrative writing includes stories, real or imaginary, biographies, histories, news item, and narrative poems. argumentation 议论文is used to analyze reasons of a matter,expatiate on the author's point of view and propositions,as well as to prove or advocate a point of view and proposition by making logical a demonstration or a logical ratiocination.exposition 应用文 It is a direct and concise style of writing used by state organs or individuals in their work, study and daily life to deal with various public and private affairs, transfer and exchange information, and solve practical problems.description 说明文It is mainly used to explain the characteristics of things, find the regulation of change, analysis of the causes and consequences. The purpose is to enable the readers to obtain the necessary information, to have a clear understanding of things.