《大学英语教学大纲(文理科用)》问世以来,全国许多院校争相采用。教学大纲的核心是教学目的。它所规定的三层次教学目的是在传统教学大纲以阅读为单一培养目标基础上的一大突破,是一份富有创见性的大纲。本文拟从概要说明三层次教学目的的科学性和实践意义入手,结合语言学和教学法的理论,提出并阐明为达到三层次教学目的所必须探讨的几个问题:1.听、说、读、写与读、听、写、说的差异;2.语篇水平上的教学;3.泛读教学的重要性;4.语法教 Since the advent of “college English syllabus (liberal arts and sciences)”, many colleges and universities in China have been vying with each other. The core of the syllabus is for teaching purposes. The three-level teaching goal it sets out is a breakthrough on the basis of reading a single syllabus of traditional syllabus. It is an innovative program. This article intends to start with a summary of the scientific and practical significance of three levels of teaching purposes, and puts forward and clarifies several issues that must be explored in order to achieve the three - level teaching objectives based on the theories of linguistics and pedagogy: 1. Listening, speaking and reading , Writing and reading, listening, writing, speaking of the difference; 2 discourse level teaching; 3, the importance of teaching extensive reading; 4 grammar