Causes of interlanguage fossilization and strategies for de-fossilization

In the researches of the second language acquisition,the study of interlanguage posesses an important position.Interlanguage is a language state which is between the native language and the target language and gradually close to the target language by the constant learning of the second language learner.What's more,in the researches of the interlanguage,the study of interlanguage fossilization is an important point to cut in.This paper will discuss the reasons that cause the formation of fossilization and the strategies to prevent the formation of the fossilization.Therefore,this paper could direct the teaching and learning of the second language.