《大学英语教学大纲》规定，大学英语教学的首要任务是培养学生具有较强的阅读能力，而目前制约学生阅读理解的最大问题就是词汇量太小。大学新生入学时大多已掌握了基本语法知识，对于一般的语法现象结构也具备了一定的识别、分析能力，词汇量在２０００左右，而英国外语教育 “College English syllabus” provides that the primary task of college English teaching is to train students to have a strong reading ability, and now the biggest problem restricting students’ reading comprehension is the vocabulary is too small. Most freshmen have mastered the basic grammar knowledge when entering school, and have certain recognition and analysis abilities for the general grammatical phenomenon structure. The vocabulary of the students is around 2000, while the English foreign language education