半命题作文是培养学生习作兴趣、训练思维、提高习作水平的有效策略之一。半命题作文在传统的全命题作文题目中有意省去一部分,成为一个“残缺”的作文题目,它介于全命题作文和话题作文之间,兼顾了两种命题方式的优点,又克服了它们的不足。首先,题目具有限制性,同时又做了一定的习作提示,在规定范围内统一要求,即对写作的范围、内容、对象等做出相应的规定,防止学生天马行空、漫无边际地写作;其次,给予了学生自由选择和发挥的余地,把习作自主权交给了 Semi-proposition writing is one of the effective strategies to cultivate students’ interest in learning, train thinking and improve the level of practice. Semi-proposition composition in the traditional full proposition essay part of the intention to save part of a “incomplete ” essay topic, it is between the full proposition essay and essay, taking into account the advantages of the two propositions, but also to overcome They are inadequate. First of all, the subject is restrictive, and at the same time it does some work hints to unify the requirements within the stipulated range, that is, to make corresponding provisions on the scope, contents and objects of writing so as to prevent the students from imaginatively writing. Secondly, The freedom to choose and play the leeway, the autonomy of the assignment to