本文首先分析了关于连贯的不同定义,认为连贯是语篇内在的语义关系特征,是意义一致性的体现。接着区分了涉及连贯本身不同方面和层次的几对重要概念:语篇连贯与篇章连贯、局部连贯与整体连贯等。最后提出并例证了表征篇章连贯关系的常用连贯手段,包括篇章标记语和词汇连贯等。 This paper first analyzes the different definitions of coherence, concludes that coherence is the intrinsic semantic relationship characteristic of discourse and is the embodiment of meaning consistency. It then distinguishes several important concepts concerning different aspects and levels of coherence: discourse coherence and coherence, coherence and coherence. At last, it presents and illustrates the common coherence means to represent the coherence of the texts, including discourse markers and coherence of words.