5HALLIDAY M A K.An introduction to functional grammar [ M]. London : Edward Arnold, 1985:9.
6HALLIDAY M tic : the social A K. Language as social semio- interpretation meaning [ M ]. London : Edward of language and Arnold. 1978.
7language Deakin : in a social- Deakin Uni- HALLIDAY M A K. Language as social semio- tic: the social interpretation of language and meaning[M] .London: Edward Arnold. 1978.