Researches on disjuncts are mainly from semantic perspeitive,guammatilal-pragmatic perspective and discourse coherence perspective.The paper tries to give abrand-new explanation on disjuncts languase functions from interpersonal meaning prespective from mood,modality,appraisal by demonstrating speakers lognitive schema and judgemental assessment,prominently marking speakers sabjective attitude and social class,shortening the intercourse distance be...