主语、谓语是句子语法学的两个重要概念。句子语法学用这两个概念来研究句子的结构。句子语法学对这两个概念下的定义是:“主语是谓语陈述的对象,谓语是陈述主语的。”这个定义,是世界各国传统语法学都采用的。例如:一本有影响的《纳氏英文法》就这样说:“一个或几个表示人或事物的词,被陈 Subjects, predicates are two important concepts of sentence grammar. Sentence grammar uses these two concepts to study the structure of sentences. The definition of these two concepts in sentence grammar is: ”The subject is the object of the predicate statement and the predicate is the subject of the statement.“ This definition is adopted by the traditional grammars in all countries of the world. For example, an influential Nash's English law says: ”One or a few words that represent people or things,