On The Vocabulary Cohesion Mode And Coherence Construction Function Of Mongolian Language Films

In general linguistics,the structural units of language are generally divided into five levels:namely,morphemes,words,phrases,sentences and larger than sentences units.Text is the most concrete language unit that is larger than a sentence,and it is the practical application form in language communication.It is a semantic integration composed of several consecutive sentences,that carries certain information and reflects the cognitive mode and pragmatic means of the speaker(writer).Scholars believe that text linguistics is a branch of linguistics that coordinates lexicology,syntax,phonology and semantics.The nature and features of a text can be summarized as cohesion,coherence,contextual relevance and informativeness.The component of a text is a sentence,and if a sentence and another sentence want to form a semantic integration,they have to have certain grammatical to dependence on each other in the surface structure,which is the cohesion of the text.Coherence refers to the sense connection between sentences in a text.Through this connection,the front and back sentences can form a semantic whole.Coherence requires not only semantic coherence between sentences but also pragmatic rules and cognitive principles.A text usually cornveys certain information,without which it cannot become a text.The information structure has its unique way of development,that is,the theme-rheme mode of text.Any text that expresses the complete meaning cannot be divorced from the context,otherwise it will lose its practical function of communication,and the speaker will have no idea what it means.Based on the above characteristics and mutual relevance,in this paper,after summarizing the lexical cohesion model in Mongolian text,focuses on its function of constructing text coherence.Lexical cohesion plays a specific role in theme-rheme promotion and text construction.This paper consists of five parts:introduction,chapter one,chapter two,chapter three and conclusion.In the introduction,the purpose and significance of the topic,the research status at home and abroad,research methods,corpus sources and other related issues are described.In chapter one,four models of textual lexical cohesion in Mongolian are summarized through corpus analysis.That is,lexical repetition,reference,relevance,collocation,etc.,and made a detailed explanation.In the second chapter,the four most common ways of theme-rheme advancement in Mongolian text are summarized,namely the same thematic type,the same rheme type,the linear continuation type,and the crossover type.Then it discusses how the theme-rheme progression model in text advances forward through lexical cohesion and constructs semantically coherent linguistic units.Chapter three,according to the context theory,divides the Mongolian text context into context,situational context and cultural context.Then the paper discusses how lexical cohesive devices achieve textual coherence by constructing a unified context,situational context and cultural context arrive to establish a coherent and logical unity.Conclusion part,summarizes the whole text content,summarizes the view.For the later research work,put forward some suggestions.