“是”在《尚书》和西周金文里一般主要是用作指示代词,作宾语,是代词性宾语。我们穷尽性地考察了《诗经》中的“是”。“是”字共出现143次。我们通过对“是”字句的语义描写分析和句法功能分析,观察到“是”字句有不同的次类。可以归纳为指示代词,复指代词,动词、形容词等几大类,其中指示代词46例,复指代词即提宾标志32例,动词1例,形容词2 “Yes ” is generally used mainly as pronoun and object in the Shangshu and Jinzhou of the Western Zhou Dynasty. It is a pronoun object. We exhaustively examined “yes ” in The Book of Songs. “Is ” appeared a total of 143 times. By analyzing the semantic description and syntactic functions of the “”, we observe that there are different subtypes of the “” character. It can be classified into several categories, such as demonstrative pronoun, compound pronoun, verb, and adjective. Among them, there are 46 demonstrative pronouns, 32 double pronoun pronoun pronoun, verb 1, adjective 2