Research On The Communication Effect Of Online Courses In Colleges And Universities In 2020 From The Perspective Of "presence"

Since the outbreak of the COVID-19 in early 2020,it has had a huge impact on all aspects of our society.One of them is that colleges and universities across the country have conducted online courses for about one semester.According to Xinhua,22.59 million college students participated in online learning during the outbreak,a total of 3.5 billion.This largescale transfer to online classes is surprising,compared with the past online classes,including the form of classes,teachers and students cognition and teaching content,such as a series of new changes,and these changes have brought about the online teaching of which new forms of expression,and how the two sides apply these forms and the attitude brought about by this new change has become the focus of this study.Therefore,this paper uses questionnaire method,in-depth interview method and other methods to analyze this phenomenon,through questionnaires and in-depth interviews found that in the early stage of the online class,although teachers and students are prepared in the content and equipment,but still encountered some communication obstacles.At the same time,although both sides agree on the importance of real-time communication and efforts to this end,but in the specific forms and manifestations of differences,the teaching form of online classes and therefore differences,some teachers will be through the camera,dress,lecture posture combined with the functions of the network platform,such as name-andname,real-time question and answer to create a similar atmosphere to the traditional classroom,while the other part chose to more or less abandon some of the traditional classroom rituals and rules,the reason behind the curriculum,The diversity of personal reasons and objective factors is caused by factors,and there are also differences in how to show up,teachers and students on the future attitude of online classes.From the point of view of communication science,this kind of difference and change means that under the influence of technological development,the mode of media participation has changed,and because of the influence of the user's view such as "cyber people" in the new media era,the development of this technology also changes the user's perception of communication concepts such as "present",from how to determine the performance and degree of "present" are different,and the impact on the dissemination effect is also diversified.However,through interviews and questionnaire analysis,it is found that the factors behind and the impact is complex and changeable,the influence factors include not only the content of the course itself and professional forms,but also the personal factors of both sides,but the development of media technology has made "re-created body","virtual present" and other new forms of participation gradually affect the audience.