Abstract
As a key concept in Bakhtin School's theory of utterance, dialogism has drawn much attention from the circles of both linguistics and literature since the late 1960s. Although it is claimed that any language use is of dialogism, the dialogic nature of discourse is primarily based on the analysis of literary texts. Recent studies have shown that dialogism is also an essential feature of non-literary texts. This thesis intends to present the theory of dialogism in the news headline. This paper is devoted to the detailed analysis of the dialogic nature of the news headline which is exemplified in the forms of ostensive dialogism and covert dialogism. The study can be used for reference in news reading and writing.
Keywords    dialogicality   news headline   ostensive dialogism   covert dialogism

作为巴赫金话语理论的核心内容，话语的对话性直到上世纪六十年代才受到语言学和文学界应有的关注。尽管巴赫金学派一再重申一切话语都有对话性，但对它的实际话语分析仅局限于文学语篇。近期的研究表明对话性也是非文学语篇的一个显著特征。本文尝试对新闻标题进行对话性研究，通过对新闻标题中的显性对话和隐形对话形式进行分析，揭示对话性在新闻标题中的表现和功能，对新闻阅读与写作有一定的借鉴作用。
关键词  对话性   新闻标题   显性对话   隐性对话

1 Inrtroduction
In today's world of information explosion, just as Daniel Bell wrote in his work The Cultural Contradictions Of Capitalism, the contemporary culture is turning into a kind of visual culture (2007:16). The connection between news reports and people's life and work is getting inseparably associated. With the pace of life gradually accelerating, people do hope to get as much news information as possible in the shortest possible time. And, with the prosperity of journalism and the increase of mass media, news has entered a new era, which is known as the era of reading headlines. Headlines play more and more important roles in the process of realizing effective communication of news information. An eye-catching headline is the first step of a successful news. Since attracting and pleasing readers is vital, no one can afford to neglect the influence of dialogicality in news headlines.
The whole thesis is made up of five parts. The first part presents a brief introduction to the general framework of the study. Then the historical review studies and present situation on news headline is demonstrated in the second part. The third part offers an exposition of dialogicality. The fourth part is devoted to the detailed analysis of dialogicality on news headlines. The dialogic nature of the texts is exemplified in the forms of ostensive and covert dialogism. The last part provides a brief summary and a tentative conclusion of the thesis.