Recasts are one type of corrective feedback that reformulates all or part of a learner's erroneous utterance during communicative interaction without changing the meaning. Categorized as implicit and input-providing corrective feedback, recasts have become the focus of debate in the area of interaction research in recent years. The debate…

Interlanguage fossilization is normal for second language acquisition. It is also a hotspot for studies on theory of foreign language acquisition. Many reasons cause the interlanguage fossilization. This paper probes into the internal mechanism of interlanguage fossilization from five aspects, namely the physiological aspect, the psychological…