This paper analyzes the current teachings and learning in the graduates of science and engineering and carries out a need survey of curriculum provision among the 2016 USST graduates.Based on the theories of the Input Hypothesis proposed by Dr. Krashen,the Output Hypothesis by Dr. Swain and the Output-driven Hypothesis by Dr.Wen Qiufang,the author proposes the approaches to improve English academic ability as follows:designing a sound curriculum system,establishing three-dimensional English input in-and-post class activities and adopting an interactive output access combined with tasks or projects.