在大学英语教学中导入西方文化知识,培养学生的文化素养可以帮助他们找到许多语言知识的根源,对于增强学生的学习兴趣,发展他们的语言应用能力和跨文化交际能力都具有非常重要的作用。古希腊罗马文化,圣经文化和美国的核心价值观——美国梦这三方面构成西方文化的基石,也是学生了解西方文化的基础。教师在大学英语教学中有必要采用一些教学策略导入这三方面的知识。 Introducing Western cultural knowledge into college English teaching and cultivating students ’cultural literacy can help them find many root causes of language knowledge and play an important role in enhancing students’ interest in learning and developing their linguistic and intercultural communicative competence. Ancient Greek and Roman culture, the Bible culture and the core values ​​of the United States - the American dream of these three aspects constitute the cornerstone of Western culture, but also students understand the basis of Western culture. Teachers in college English teaching is necessary to adopt some teaching strategies to import these three aspects of knowledge.