As an active and important text-forming factor, lexical cohesion often reflects the event-line and participant-line of a text on the semantic stratum, and reveals the theme of the text.

• 在词汇衔接中,同一词根的派生词衔接作用基本相同。 词汇衔接关系是篇章构成的重要一环,它往往反映出篇章语义层上的事件线和参与者线,同时也揭示出篇章的主题。