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y, minority preparatory students’ English foundation is not as solid as the other students.  So the problems, such as the shortage of  English learning interests and motivations, are appearing. If this situation is not changed, students will suffer a great deal from the negative effects. Therefore, the purposes of this study are firstly to reveal the overall situation of minority preparatory students’ English learning and to analyze why these students have low English learning self-efficacy. Then the  study  aims  to  verify  the  feasibility  of  We Chat-based  blended  learning  and  to  find  out  whether  this learning  model  can  enhance  minority  preparatory  students’  English  learning  self-efficacy.  To  be  more specific, the study will test if students’ English achievements are improved. At last, the correlation between English learning self-efficacy and English achievement will be analyzed, in order to prove that self-efficacy can positively influence learners’ performances. 
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Chapter Two Literature Review 

2.1 Studies on Blended Learning Abroad and at Home  
Blended learning is not a new term, because it has existed from human thinking about teaching and learning.  What  makes  it  new  is  the  application  of  network  technology  into  the  teaching  and  learning process. In 2003, American Society for Training and Development identified blended learning as one of the top ten trends in knowledge explosion age (Rooney, 2003). Blended learning environment is a hybrid of classroom teaching and online learning that includes the convenience  of  online  course  and  the  advantages  of  face-to-face  instruction.  In  order  to  testify  its superiority, many scholars focused on the comparison of traditional instruction, fully online learning and blended  learning.  Rovai  and  Jordan  (2004)  did  an  empirical  research  on  the  relationship  of  sense  of community among the three learning approaches. According to the data analysis of questionnaires, they proved that blended courses produced a stronger sense of community among students than either traditional or fully online courses. So they believed that the blended learning should be advocated in order to develop students’  strong  sense  of  community.  Researchers  also  found  that  students’  performances  are  totally different  among  the  environment  of  traditional  instruction,  online  learning  and  blended  learning. Vernadakis (2012) selected 53 undergraduate students in the Department of Physical Education and Sport Science as the participants, which were divided into two groups. 29 students in control group were taught by traditional instruction, while 24 students in experimental group received blended courses. To check out the results of blended learning and traditional instruction, a t test analysis was conducted. And the results demonstrated that students who attended blended course showed higher performan本论文由英语论文网提供整理，提供论文代写，英语论文代写，代写论文，代写英语论文，代写留学生论文，代写英文论文，留学生论文代写相关核心关键词搜索。