常见例句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，而非能力错误。口语错误产生的原因主要有负面的母语迁移、衔接和连贯问题； 返回 incohesion