随着新课程改革的不断推进与深入,“以学定教”的课堂教学模式已成为有效课堂的新举措。有效设计预习作业恰是有效课堂教学的前奏和铺垫,本文针对预习作业的特点并结合自己的教学实践介绍了有效英语预习作业的四种类型:问题式预习作业、听模式预习作业、导图式预习作业、实践式预习作业。只有有效的设计预习作业才能使预习作业真正有助于提高学生的学习力。 With the continuous promotion and deepening of the new curriculum reform, the classroom teaching model of “learning to teach” has become a new initiative in effective classroom. Effective pre-design homework is just a prelude to effective classroom teaching and bedding. This paper introduces four types of effective English pre-work assignments based on the characteristics of pre-homework and their own teaching practice: problem-based previewing, previewing, previewing Prepare for homework and practice homework. Only effective design preview exercises can really help to improve the learning ability of students.