【正文】
1. Referential: to convey message and information。 2. Poetic: to indulge in language for its own sake。 3. Emotive: to express attitudes, feelings and emotions。 4. Conative: to persuade and influence others through mands and entreaties。 5. Phatic: to establish munion with others。 6. Metalingual: to clear up intentions, words and meanings. Halliday (1994) proposes a theory of metafunctions of language. It means that language has three metafunctions:1. Ideational function: to convey new information, to municate a content that is unknown to the hearer。2. Interpersonal