山田孝雄的语言学贡献与语法理论探讨
On the Linguistic Contributions and Grammatical Theories of Yamada Yoshio

山田孝雄(やまだよしお，1873~1958)在日本语法史上，在明治、大正、昭和各个年代中都有着重要的地位。他是日本著名的语法学家，他的语法被称为山田语法，跟桥本语法、时枝语法一起被称为日本三大语法学说。明治时代，在传统的西洋语法的输入和其对日语的直接适应的时代，山田孝雄从日语的事实出发，展开了对语言本质的根源性思考，建立了现代日语语法体系。他的语法研究是从在乡下当国语教师时，无法回答学生提出的关于“は”的问题开始的。这个小插曲，成为了山田孝雄开拓国语法学者人生的契机，也很好地反映了他的语法研究特点。
Yamada Yoshio (1873~1958) plays an important role in the history of Japanese grammar during the Meiji, Taisho, and Showa eras. He is a famous Japanese grammarian whose grammar is known as Yamada grammar, which is one of the three major grammar theories in Japan, along with Hashimoto grammar and Tokieda grammar. During the Meiji era, when traditional Western grammar was introduced and adapted directly to Japanese, Yamada Yoshio began to engage in fundamental thinking about the essence of language based on the facts of Japanese. He established the modern Japanese grammar system. His grammar studies began with his inability to answer questions from students about “は” while working as a National language teacher in the countryside. This small incident became the turning point in Yamada Yoshio’s life as a pioneer in the study of Japanese grammar and also reflects his characteristics of his grammar research.