Appellation is an inseparable part of human verbal communication.Appellation terms are kinds of linguistic routines of politeness which reflect customs and conventions of a speech community.Social appellation is one subsystem of appellation system.It is used to denote people other than family members.It is a very complex and important system.In this thesis a contrastive study is made on social appellation systems between English and Chinese.In cross-cultural communication,misuse of social appellations results from two reasons:the interference of moth...