So the study on teachers' instructional directives can shed light on teaching practice.
因此,研究者认为教师指令语研究对教学实践有重要的指导意义。
·2,447,543篇论文数据，部分数据来源于NoteExpress
历年来，国内外学者对教师指令语的研究主要集中在教师发出有效指令的方法，教师指令的分类与功能等方面。
For a long time the scholars and educators both in China and in western countries have mainly studied types of directives, functions of directives and effects of directives.
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