Discourse perspective is the selection and combination of the discourse purpose and the discourse intention during the discourse construction,and controls the overall coherence of whole discourse.It is embodied in the angle of context description,content layout,selection of grammatical structures and vocabulary.The lexical meaning is the foundation of the discourse,and the recognitions of the lexical meaning includes the conceptual meaning,grammatical meaning and discourse meaning.Thus the expression of the word meaning is multidimensional,and features of the representation form are shown as d...