With reference to discourse linguistics, semiology and ceommunication theory,thethesis tries to hew out a path of research at the edge of TV-news journalism andlinguistics.

• 本文借鉴了话语语言学的研究成果，结合符号学、传播学方面的知识储备，试图在电视新闻学和语言学的边缘和交叉处开通一条研究思路。