中介语石化是二语习得中的一个普遍现象。文章从学习策略、交际策略、文化迁移以及教师的训练迁移等四个方面,分析了英语写作学习过程中的中介语石化成因,探讨了研究介语的石化现象对英语写作教学的积极作用。 Interlanguage fossilization is a common phenomenon in second language acquisition. This paper analyzes the causes of the interlanguage fossilization in the process of English writing learning from the aspects of learning strategies, communication strategies, cultural transfer and teacher training and migration, and discusses the positive role of the petrochemical phenomenon of the research internship in the teaching of English writing.