在多媒体条件下,大学外语教师必须实现从传统的知识传授者向课程的设计与开发者、教学活动的组织者、学生学习的指导者、学生学习平台与学习资源的提供者以及学生学习效果的评价者等方面的转变。教师角色的重新定位有利学生确立起自己正确的学习动机,有利于学生提升自己的学习能力,有利于对学生的学习进行全面的评价。 Under the conditions of multimedia, university foreign language teachers must achieve the goal of learning from the traditional knowledge transferors to the design and development of curriculum, the organizers of teaching activities, the guidance of student learning, the learning platform of students and the providers of learning resources and students Evaluators and other aspects of change. The relocation of teachers ’roles helps students to establish their own correct motivation for learning, helps students to improve their learning ability, and conducts a comprehensive evaluation of students’ learning.