妥善处理母语与外语的矛盾,是外语教学中不可回避的问题。教师应向学生输入大量的可理解的外语语言材料作为手段,充分利用母语优势,注意排除母语干扰,增强外语语感。结合大学英语学科的教学特点来论述双语教学,在保证大家可理解的外语语言材料输入的前提下,提高双语教学的质量。 Proper handling of the contradiction between mother tongue and foreign language is an unavoidable problem in foreign language teaching. Teachers should input a large amount of comprehensible foreign language materials to students as a means to make full use of the advantages of their mother tongue, pay attention to eliminating the interference of their native languages ​​and enhance the sense of foreign language. Bilingual teaching is discussed based on the teaching characteristics of college English subject. Under the precondition of ensuring the comprehensible input of foreign language materials, the quality of bilingual teaching is improved.