教师教学语言表达技巧会对学生学习情绪、学习效果产生影响,而大规模开放在线课程(MOOC)中的学习资源多以视频形式呈现,因此,教师视频语言表达作用更为凸显.为此,文章对抽样选择的304门MOOC课程的基本信息(课程所属机构性质、课程学科分类、课程类型、教师性别、教师教龄、教师职称、教师类型和教学方法)和授课教师视频语言表达技巧信息进行记录,通过因子分析、多元线性回归分析与均值检验探索8个课程基本信息对教师视频语言表达技巧的影响.发现课程所属机构性质、课程类型、教师教龄及教师类型的不同会影响教师视频语言表达技巧且会造成其明显差异,不同的学科分类和教学方法仅会造成教师视频语言表达技巧的差异.基于此,针对MOOC课程开发、MOOC教师选拔与培训提出参考建议.%Students' learning mood and learning effects would be affected by teachers' teaching language. While most learning resources in MOOCs are presented in video form, teachers' language in videos is more important. Therefore, this study selects 304 MOOC courses and records the basic information (including institutional characteristics, subject classification, course type, teachers' gender, teaching age, professional titles, types and teaching method)and language presentation skills of the instructors, and then explore the effects of basic information on instructors' presentation skills by using factor analysis, multiple linear regression analysis and mean test. It is found that the difference of institutional characteristics, course type, and teacher's teaching age and teacher type would affect teachers' presentation skills in video, and make obvious differences. Different subject classification and teaching methods only result in the difference of teacher's presentation skills in video. Based on those findings, this paper puts forward some suggestions for the development of MOOC curriculum and MOOC teacher's selection and training.
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