It doesn't have strong linguistic basis，but it can be assumed that the situationalists accept the view that language is used for communication.It aims at specifying the situation in which target language is used.The selection and organization of language items are based on situations.Grammer forms and sentence patterns are introduced and practiced.but they are knitted entitled at the airport at the bank In class audio -oral method is adopted.New materials are heard and spoken before read and written by the learners.The teacher can make use of pictures,real object and postures of participants to involve them in dialogue and role-play.The method is teacher- centered,compared to grammar translation Method,there's more participation on learns part Advantages：it sets out to meet learners direct communicative needs Drawbacks：The arrangemet of situation is not systematic.The situation used in textbook can be truly authentic.