The grammatical means include censuring for omitting and subtituting .But the first two are studied in this dissertation except for the last one because the achievemengts of it are so much.

• 语法手段主要包括指称、省略、替代三种，本文只考察指称、省略两种手段，其中由于人称指称研究成果很多，所以本文不把它列为研究的范围；