【摘要】 多媒体技术和网络技术的飞速发展,给大学英语教学带来了巨大的变革。大学英语教学必须面对这些变化带来的挑战,英语教师的角色也必须根据新的教学环境相应的变化重新定位,这样才能更好地发挥多媒体教学的优势。本文以建构主义理论为基本出发点,阐述了多媒体辅助外语教学的特点、对教师的挑战,以及多媒体辅助外语教学中教师角色的转变、途径。更多还原

【Abstract】 With the rapid development of economy,scientific technology and culture,network is having a powerful impact on our society.And teachers’ traditional role can no longer meet the demand of the new features of education.So as college English teachers,we must spare no efforts to make changes in role playing in order to fur-ther deepen the reforms in English teaching.更多还原