Large scale dialect survey(dialect survey)is a comprehensive survey of dialect resources and is also an important national language work.In the past century,Hunan Province has experienced four large-scale surveys of Chinese dialects:in the early 20th century,Mr.Zhao Yuanren,Mr.Ding Shengshu,and Mr.Yang Shifeng’s survey of dialects in Hunan was pioneering;The census of Hunan Chinese dialects in the middle of the 20th century aimed to promote Putonghua,and its achievements showed the basic features of Hunan dialect;The survey of Hunan dialect in...