7Halliday,M.A.K.An Introduction to Functional Grammar[M].London:Eward Arnold,1994:352.
8Halliday,M.A.K.& C.M.I.M.Matthiessen.Construing Experience through Meaning:A Language-based Approach to Cognition[M].London/New York:Continuum,2000:269-270.
9Fowler,R.Language in the News:Discourse and Ideology in the Press[M].London/New York:Routledge,1991:67.
10Fairelough,N.Discourse and Social Change[M].Cambridge:Pofity Press,1990:73.