Abstract: By means of a detailed analysis of the dramatically changeable situation in A Farewell to Arms between CV and TRR,the correctness and relevance of the semantic schema raised in this article are verified.It is proved that the reader-involved textual ambiguity can show the ability to motivate the development of plot,and the ability basically results from the automatically matching order and reader-involved choices of wrong-correcting monitor system between a reader’s expectations and textual insight points.