信息沟是随着交际教学法的兴起与发展而受到外语教学界的广泛关注 ,它贯穿于外语教学的各个环节。实践证明基于信息沟的外语教学是行之有效的。本文拟就信息沟的特点及其在外语教学中的作用 ,教师如何在课堂教学环境下有意识地创造具有信息沟的交际情景并开展教学活动 ,学生在填平信息沟时应注意的问题以及信息沟在交际能力测试中的应用等问题作一探讨 With the rise and development of communicative teaching method, information ditch is widely concerned by foreign language teaching circles, which runs through all aspects of foreign language teaching. Practice has proved that information-based foreign language teaching is effective. This paper intends to talk about the characteristics of information ditch and its role in foreign language teaching, teachers how to consciously create a communicative context with information ditch in the classroom teaching environment and carry out teaching activities, students should fill the information ditch should pay attention to problems and information Ditch in the application of communicative competence test and other issues to be explored