Contrastive Study Of News Reports On Climate Change In China And USA From The Perspective Of Ecological Discourse Analysis

Climate change has a great influence to human beings,and has led to many environment problems,with the rapid development of economy and society.More and more people realize the importance of environmental protection.Different professors and scholars in different disciplines hope to protect the environment with their own abilities.Then,the discipline of ecolinguistics comes into being.It studies the ecological factors of languages by analyzing the languages and the environment,finding the interaction between them.Ecological discourse analysis（EDA）is an important field in the study of ecolinguistics.Nowadays,many linguists try to analyze all kinds of discourses for constructing the syntactic structure of ecological harmony.There are limited studies on the discourse analysis in news reports on climate change from the perspective of language ecology,especially the contrastive study of news reports on climate change in China and USA.Systemic-functional grammar（SFG）of Halliday and three-dimensional model of Fairclough as the theoretical basis of the thesis,based on the ecosophy that puts ecology first to seek win-win cooperation,shapes green development with low-carbon emission to pursue harmonious coexistence,this thesis contrastive studies of news reports on climate change in China and USA from the perspective of EDA,and then reveals the differences and similarities in language strategies and ecosophy behind the news reports on climate change.The 68 news reports on climate change are selected in China Daily,Xinhua,New York Times and New York Post from November 4^th,2016 to December 15^th,2018.It mainly compares them from three stages.In the description stage,the contrastive study focuses on lexical choices and transitivity of news reports on climate change.In the interpretation stage,it concentrates on comparing the news sources and reporting modes.In the explanation stage,this thesis indicates the reasons of difference in the social practice of different media in China and USA.The analysis of institutional context,situational context and social context are presented in this stage.This study concludes that the news reports on climate change in China and USA have declared their own national positions and ecosophy by different language strategies and discourse devices.Through the analysis to the selected samples,the contrastive results are summarized as follows:Firstly,in the aspect of lexical choices and transitivity,the news reports on climate change have different focuses.The news reports in China tend to adduce by verbal process,and emphasize the standpoint to the climate change combat of the country repeatedly.The closely cooperation are established with other countries,especially with America.The news reports in America conveys the negative information to readers by the tendency of material process using.Secondly,both of the two countries would like to use specific sources,and quote the official words by direct and indirect discourses modes.Finally,the contrastive analysis in context,the differences exist in ecosophy and social practice of combating news reports on climate change,because of the differences in development degree,nature of state,economic power and cultural background in China and USA.Therefore,this thesis not only makes clear of the research category in EDA,and enriches the contrastive analysis methods of news reports on climate change in China and USA,but also cultivates the awareness of critical reading,improving the analysis abilities of news reports discourses on climate change.Everyone of us has to develop beneficial discourse,rejecting destructive discourse and ameliorating ambivalent discourse,and then try to construct the syntactic structure and discourse behavior of ecological harmony.