switching of discourse roles 话语角色转换
Through the construction of women images, television media expresses various expectations for womens roles in the male-centered culture and the imagination and narration for women in mens discourse.
电视媒介通过对女性形象的建构，表达了男权中心文化对女性角色的种种期待，以及男性话语对女性的想象和叙述。
The paper gives a general introduction to the definition and classification of context, expounds the roles of non-linguistic contexts in the explanation, design and transformation of a discourse.
本文概括地介绍了语境的定义及分类，详细分析了非语言性语境的解释、设计及转换三种主要功能，并以实例说明了非语言性语境在话语理解中的重要作用。
Every language has its own special organizing rules. Theme and rheme play the most important roles in discourse structure.
各国语言都有其特殊的组织规律，主位述位是话语结构的重要组成部分。
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