According to the xu-argument proposed by Wang(2016,2017),languages are acquired via xu(a Chinese word with the meaning of continuation),and highly efficient language learning can be achieved through xu.We hold the view that the learning effect of xu can be promoted if language learners have fully developed competence in xu,hence the term xu-competence.What is xu-competence?Is there any evidence supporting the analysis of xu-competence?How might foreign-language teaching and research benefit from research on xu-competence?To answer these questions,an analytic model of xu-competence is proposed in the present paper with the aim of not only explaining what xu-competence is,but also of validating the power of xu-argument research.It points out that xu-competence,or competence in interaction and alignment is,in essence,a dynamically composed cluster of cognitive abilities and interactional skills.Evidence from cognitive research,educational re-search,and empirical xu-based research is then examined in this paper,and the value and challenges of xu-competence research are also discussed.
xu-argumentlearning via xuxu-competenceinteractional align-ment
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