摘要：Dumb English is a serious phenomenon among most teenagers in China. When the assessment system of man-machine dialogue is added to the entrance examination, English listening and speaking ability becomes indispensable to students. How to arouse teenagers' interest in spoken English and effectively improve their listening and speaking ability is very critical. The main learning environment for students is the classroom, hence classroom teaching plays a key role in enriching students' ability of listening and speaking. In view of the problems existing in junior high school classroom and students' listening and speaking ability, the relevant optimization strategies are presented.
关键词：man-machine dialogue; oral practice; listening and speaking ability
