“需要性写作”是指在习作教学中为激发学生自我表达和与他人交往的需要、为解决学生写作中遇到的困难而进行的主题鲜明、目标明确的写作指导活动。“需要性写作”有着鲜明的、能彰显其题中之意的五大教学支柱:摸清写作需求是基础,激发写作动机是前提,促发自主建构是关键,引导自能修改是核心,创新评价机制是保障。 “Necessity Writing ” refers to writing motivation which aims at stimulating students’ self-expression and interaction with others during the process of teaching and writing so as to solve the difficulties encountered in writing students. “Need to write ” has a distinct, can highlight the meaning of the five major teaching pillars: to find out the writing needs is based, motivate writing motivation is the premise, to promote self-construction is the key to guide self-modification is the core, Innovative evaluation mechanism is to protect.