作为日语程度副词历时演变的个案研究,本文选取了「いと」「おほき(い)に」「全然」「とても」这四个程度副词,对它们在口语中使用情况的盛衰消长以及语源演变进行了较细致的考察。它们的产生和发展,再次证明了语言的发展是一个新陈代谢的过程是经过旧的语言现象逐渐衰退、消亡,新的语言现象逐渐兴起、盛行来实现的。 As a case study of the diachronic adverbs of Japanese, this essay chooses four adverbs of “い と”, “お ほ き (い) に「 ”and“ て て mo ”, analyzes their ebb and flow of etymology, Conducted a more detailed study. Their emergence and development prove once again that the development of language is a metabolic process that is achieved through the gradual decline and disappearance of old language phenomena and the gradual emergence and prevalence of new linguistic phenomena.