理论上讲,二语习得者的语言属于过渡性质,在不断发展变化,但又自成体系;从学习者的眼光看,它是合法的语言,无对错可分,学生犯错是进步对阶梯,是无法避免的。通过分析出错的原因和错误的类型,重视学习者学习过程的心理特点和阶段性,了解学习者的进展情况,确定更科学、客观化的纠错的态度,和确定与之相适应的教法。 Theoretically speaking, the second language learners’ language belongs to the transitional nature, which is evolving and changing but also self-contained. From the learner’s point of view, it is a legal language. There is no right or wrong language. Ladder is inevitable. By analyzing the causes of errors and the types of errors, attention is paid to the psychological characteristics and stages of learners’ learning process, to understand the progress of learners, to identify more scientific and objective error correction attitudes, and to determine appropriate teaching methods .