洛阳市５０年代以来形成的方言区、混合区、普通话区三大城区并立的现象，是中国现代工业化过程中的语言文化形态的缩影。本文在长期实地观察和大量调查的基础上，研究了洛阳市现代语言形态的产生背景和具体过程，揭示了新兴工业区产生（或不产生）普通话形态的根本原因。提出了解释东方计划经济国家工业化过程中的语言扩散特点和规律的“跳跃说”和“语言岛屿”理论，分析了洛阳市的五种语言岛屿现象。提出了“跳跃说”和“语言岛屿”理论的六个基本定理。本理论对认识语言发展规律尤其是普通话的发展规律有一定意义 The phenomenon of the simultaneous establishment of three major urban areas of dialect, mixed district and Putonghua in Luoyang since the 1950s is a microcosm of the language and culture in the process of modern industrialization in China. On the basis of long-term field observation and extensive investigation, this paper studies the background and specific process of the formation of modern linguistic patterns in Luoyang and reveals the root causes of the formation (or non-emergence) of Putonghua in emerging industrial zones. Proposed the theory of “leaping” and “language island” to explain the features and laws of language diffusion in the process of industrialization in the planned economies of the East China and analyzed the phenomenon of the five language islands in Luoyang. Put forward six basic theorems of “leap theory” and “language island” theory. This theory is of certain significance for understanding the law of the development of languages, especially the development of Putonghua