In 2019,the global outbreak of COVID-19 prevented the vast majority of international students from studying in China,which had a huge impact on the education of international students in China.In order to ensure that "teaching will not stop when classes are suspended,and learning will not stop when classes are suspended",the teaching method for international students in China has changed from traditional offline teaching to online teaching.Yunnan University has fully launched online Chinese teaching since the spring semester of 2020.This new Chinese teaching method has played an irreplaceable and important role in actively responding to and defusing the impact of the new crown epidemic and ensuring the continuation of Chinese teaching,and has achieved positive results.,and there are still some problems that need to be solved.This article takes the online listening and speaking class of a key teacher of the School of Chinese International Education of Yunnan University as the research object,the lesson "Come Home and Look" in the Intermediate Chinese Listening and Speaking Course.First of all,this paper uses the classroom observation method to observe the whole process of classroom teaching,and conducts recording and screen recording and transcribing with the consent of the teacher.Then,using the case analysis method,each classroom teaching link of the online listening and speaking course is analyzed.In addition,the students in this class were investigated and analyzed by means of performance test,questionnaire survey and interview.On the basis of the above investigation and analysis,an overall evaluation was made on the teaching case of the online listening and speaking class "Come Home and Look",and the effectiveness of the classroom teaching was analyzed and summarized.Personal suggestions on how to optimize online listening and speaking classes.Through case analysis,it was found that the teacher increased students’ online output time by rationally arranging teaching content in the teaching process,using language art to make up for the body language that could not be displayed in online teaching to attract students’ interest and attention in learning,and at the same time rationally using the Internet Teaching resources to achieve the optimization of teaching effect,etc.,these are worthy of reference.However,there are also some deficiencies in teaching,such as classroom interaction and "student-student interaction" defects,failing to notice that students’ enthusiasm is affected by the network,students’ lack of motivation for learning,and the incomplete setting of a certain teaching link.In view of the shortcomings of this online teaching,the author puts forward several opinions:First,teachers should strengthen after-class interaction,use roll call to establish interaction in online classroom interaction,and give encouraging feedback to improve classroom interaction in online listening and speaking class.Secondly,in response to the lack of students’ motivation for learning,teachers can set up online and offline mutual aid groups and supervision groups to achieve communication between teachers and students and stimulate students’ learning motivation from the outside.Furthermore,when teaching online,teachers should also strengthen their own network informatization teaching level,and learn to use hardware facilities that match online teaching,such as recording students’ corpus with the help of voice conversion technology,and using electronic writing boards to optimize the design of blackboard writing.The last is the multi-channel online teaching feedback from teachers,focusing on learning to improve online teaching methods and teaching methods. |