2) most grammatical errors were errors of performance, while content errors mainly occurred as results of negative L1 transfer, incoherence and incohesion;
2）学生所犯的大部分语法错误都属不系统的行为错误，而
错误。口语错误
生的原因主要有
的母语迁移、衔接和连贯问题；
2) most grammatical errors were errors of performance, while content errors mainly occurred as results of negative L1 transfer, incoherence and incohesion;
2）学生所犯的大部分语法错误都属不系统的行为错误，而错误。口语错误生的原因主要有的母语迁移、衔接和连贯问题；
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