The Research On The Preposition "Yu" In Han Fei Zi

As an important historical and culture books in pre-Qin period, Han Fei Zi was created at the late Warring States period, the book is divided into 20 volumes, a total of 55 parts. The language used in Han Fei Zi generally reflects the written features of the late Warring States period, and it is in the transition period of the pre-Qin and Han, so it has the characteristics of connecting. Therefore, the research on Han Fei Zi plays an important role in the analysis of linguistic features of the special periods, and reveal the law of development of Chinese grammar.The research about preposition in Han Fei Zi is still not deep enough, the research about the preposition of "Yu" is sporadic and non system. This text aims at comprehensive analysis of the grammatical features of the preposition "Yu" in Han Fei Zi, which based on combining previous studies. Conclude the grammatical function and the conditions of concealing and revealing of "Yu" in Han Fei Zi in the ancient Chinese with the method of combining qualitative and quantitative, diachronic and synchronic, especially focused on the concealing and revealing of" Yu".By exhaustive searching, this text will classify the components that behind of "Yu",which based on the statistics, and point out the semantic and grammatical relations between the "Yu + the introduction components" and the predicate. In addition, compare the text with principle of isotropic and isomorphism to find out the concealing and revealing conditions of "Yu" in Han Fei Zi, and then to classify them. At the same time, by combining the characteristics of "Yu" and "yu" in the early times, to clarify the evolution of grammatical function of "Yu" in the process of development.The thesis include three parts:The first part is the introduction, mainly introduces the research of Han Fei Zi,and the version of which it choices, then briefly introduces the purpose significance and methods of the research on the preposition "Yu" in Han Fei Zi.The second part is divided into two chapters, the first chapter introduces the grammatical function of the preposition "Yu" in Han Fei Zi with the method of diachronic and synchronic, and we can find out that "Yu" can be followed by object、 time，、place and so on, then to explores the syntactic position of "Yu" in the sentences. The second chapter discusses the problems of concealing and revealing of "Yu" that between the verb and the noun in Han Fei Zi.The third part is the conclusion, summarizes the grammatical function and usage of the preposition "Yu",and the situation of concealing and revealing of "Yu" in Han Fei Zi.