| Guazhou is located in the northwest of Gansu Province and belongs to Jiuquan City.It is an important merchant town on the ancient Silk Road.Guazhou dialectbelongs to Hexi section of Lanyin Mandarin.This paper takes the tone sandhi of Guazhou dialect as the research object,and mainly describes and analyzes the tone sandhi of Guazhou dialect combined with the phonetic materials obtained from literature and field investigation.This paper consists of four parts.The first part is the introduction,which introduces the general situation of geography and history of Guazhou,the research status of Chinese dialect tone sandhi and light tone,the research status of Gansu dialect and Lanyin Mandarin tone sandhi,the research significance,methods,the selection of dialect points and the information of pronunciation partners.The second part analyzes the single word tone of Guazhou dialect,describes the tone sandhi of Guazhou dialect in detail,and describes and summarizes the laws of general two character group tone sandhi and special tone sandhi of Guazhou dialect.Based on the theory of "tone of words",this paper analyzes the tone sandhi of Guazhou dialect.The third part discusses the tone sandhi of Guazhou dialect.This paper puts Guazhou dialect into Lanyin Mandarin three tone dialect and analyzes the combination of Yangping and shangsheng in Guazhou.In the "tone" system,the bottom tone values of Yangping and shangsheng in Guazhou dialect are analyzed.The reasons for tone simplification are explained from the perspectives of internal and external causes,This paper analyzes the "shared tone","exclusive tone","strong tone" and "weak tone" in the word tone and continuous tone of Guazhou dialect.The last part is the conclusion,which summarizes this paper and finds out its innovation and shortcomings. |