语法学研究的对象是构成语法单位的组合和聚法规则总和的语法结构规则。所以语法描写分析的第一步是分析出语言中语素、词、短语和句子等大大小小的语法单位,然后再分析这些大大小小的语法单位是如何构成一定的组合关系的, The object of grammatical study is the grammatical structure rules that make up the combination of grammatical units and polygamy rules. Therefore, the first step of grammatical description analysis is to analyze large and small grammatical units such as morphemes, words, phrases and sentences in language, and then analyze how these large and small grammatical units form a certain combination relationship.