把下面的内容翻译为英文：因此本研究为填补这个研究空白将使用自编的混合式教学环境下英语教师支持问卷和学习投入问卷调查研究生在SPOC混合式学术英语课程中的学习投入和感受到的英语教师支持水平以帮助英语教师了解学生并据此优化教学结构和教学方式加强对学习者的引导和激励。另外本研究还要探索学生感知到的英语教师支持与学习投入水平的关系以期丰富混合式教学环境下的学习投入和英语教师支持研究。

Therefore, this study aims to fill this research gap by using self-developed questionnaires on English teacher support and learning engagement to investigate the learning engagement and perceived level of English teacher support among graduate students in a blended academic English course on SPOC. This will help English teachers understand their students and optimize teaching structure and methods accordingly, as well as enhance guidance and motivation for learners. Additionally, this study also aims to explore the relationship between perceived English teacher support and levels of learning engagement among students, in order to enrich research on learning engagement and English teacher support in a blended learning environment