Semiotics C.W.Morris classifies semiotics into three sub- branches: syntactics/syntax(句法学/符号关系学)： the relation between linguistic symbols semantics(语义学/符号意义学)： the relation between linguistic symbols and the referents. pragmatics(语用学/符号实用学)： the relation between linguistic symbols and the users.Semiotics C.W. Morris classifies semiotics into three sub￾branches: syntactics /syntax (句法学 / 符号关系学): the relation between linguistic symbols. semantics (语义学 / 符号意义学): the relation between linguistic symbols and the referents. pragmatics (语用学 / 符号实用学): the relation between linguistic symbols and the users