Larsen-Freeman's three-dimensional grammar framework includes the dimensions of form,meaning and use.Grammar teaching of simple past tense should firstly carry out a pedagogical analysis based on the three dimen-sions so that teachers can be explicit about the learning difficulties caused by inflected verbs,absence of tense in moth-er tongue and meaning redundancy.According to these leaning difficulties,processing instruction and corrective feed-back can be applied to help grammar teaching of simple past tense.%Larsen-Freeman的三维语法框架包含形式、意义及运用三个维度。以一般过去时态为例,语法教学应先对语法结构的三个维度进行清晰的内容分析,从而明确由动词变形、母语时态缺失以及意义冗杂所造成的学习难点,进而有针对性地采用加工教学法和纠错性反馈的教学方法。
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