nguage communication between two persons. It only tells the students that when the participants take a certain kind of social role, in a certain kind of situation, about a certain topic, conversation goes that way. Dialogues are thought to provide meaningful context for the key structures and to illustrate situations in which those structures might be used. Here, meaning is the center of a dialogue, and human communication varies. No dialogue is held in exactly the same way, in the same kind of situation and about same topic. Students do not have to memorize the teacher's model. Students should try their best to develop their language competence, including communicative competence, discourse competence and strategic competence, etc, so that they can use the target language communicatively.
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