补缺假说阐述了中国普遍的“哑巴英语”和“汉式英语”外语学习者的成因——母语语境知识补缺影响外语学习。高校英语改革应重视语言学习与语境知识的融合,测试的反拨作用和魅力英语课堂的营造可以促使学生主动学习外语语境知识,促进外语学习。 The complementarity hypothesis expounds the causes of the common “dumb English” and “Chinese English” foreign language learners in China - the lack of knowledge of mother tongue context affects the foreign language learning. The reform of college English should pay attention to the integration of language learning and contextual knowledge. The counter-dialing test and the construction of the charming English classroom can promote students to actively learn the knowledge of foreign language context and promote foreign language learning.