【正确答案】正确答案：(1) Turn quantity and length How much a character talks can be indicative either of their relative importance in the play, or of how important they appear to think they are. Generally speaking, central characters have longer and more speeches than minor characters. (2) Exchange sequence: The patterns of exchange of a dramatic dialogue which are considered appropriate by speakers of English. For example, the two-part exchanges such as greeting - greeting, question - answer. (3) Production errors: Deliberately used forms such as hesitation to convey something about the character (4) The cooperative principle: this principle is proposed by Grice. He asserted people used to make sense of their conversation by enabling them to distinguish between sentence meaning and utterance meaning. He also suggested that people actually break these maxims quite often when they talk. (5) Status marked through language: Many of the properties of language discussed can be used to signal the relative status and changes in status, of characters. Particularly, language can be used to signal to what extent the relationship between an addresser and addressee is based on a social power difference, and to what extent it is based on solidarity. (6) Register: It is the term used in linguistics to describe the relationship between a particular style of language and its context of use. An example of a linguistic register is legal discourse, we recognize a legal document when we see one, but lawyers are the only people who are trained to produce them using appropriate linguistic choices. (7) Speech and silence: Concerning female characters in plays, there is evidence that men tend to talk more than women in mixed sex conversations.