Problems and Countermeasures of College English Mixed Teaching Mode

. The advent of the epidemic has brought great changes to the education methods. The hybrid teaching mode of online and offline integration has become the new normal of college English education. College English is an important professional course, and its teaching goal is to cultivate students' English application ability and comprehensive language quality training. However, there are still some problems in the mixed teaching model in practice. This paper analyzes the implementation of college English mixed teaching mode at this stage, and summarizes the existing problems and the current situation of English professional development trend and the new information technology, and puts forward new ideas and methods of college English teaching to improve the existing teaching mode, so as to lay a solid foundation for the development of future mixed teaching mode, and to promote the development of Chinese English education in the new period.


Introduction
While the comprehensive outbreak and repeated breeding of COVID-19 have had a great impact on the world political economy, it has also had a certain impact on education. Under the measures of home quarantine to prevent and control the spread of the epidemic, online education has emerged and been widely applied in a broad range. Online education refers to the construction of a teaching platform relying on Internet information technology, and the realization of distance online education by linking teachers and students through breaking the time and space restrictions, which provides the implementation conditions for "no suspension of teaching without suspension" [1]. At the beginning of the outbreak in 2020, the Ministry of Education actively take countermeasures, and organized nearly 40 online curriculum platform and technology platform, drive more than 110 social and university platform actively participate in, realize the students normal learning, normal teaching and school management, meet "everyone can learn, everywhere can learn, always can learn" education teaching needs. In April 2022, minister of Education huai jinpeng announced the national wisdom education public service platform (hereinafter referred to as "wisdom" platform) officially launched, "wisdom" platform for innovative teaching mode, rich resource supply, optimize education governance and reform evaluation method laid the foundation, it marks the new opening of the digital process stage of higher education. With the repeated breeding of the epidemic, China's education has realized the rapid transformation of online and offline "one-click switch" education mode, online and offline mixed teaching mode has become the norm of teaching, but also the trend of future teaching mode development [2] . Therefore, it has the profound significance and role of exploring the online and offline mixed teaching mode at present.

The status quo of the online and offline mixed college English teaching mode
Online and offline mixed teaching mode, that is, with students as the center and object of teaching development, with various teaching tools to work together, and the use of efficient teaching methods to carry out teaching implementation mode.In a narrow sense, mixed teaching mode refers to the combination of online teaching and offline teaching; in a broad sense, hybrid teaching mode means innovating the traditional teaching mode, innovating the traditional teaching mode, copying the offline teaching mode, and combining the teaching methods, theories and teaching organization forms to create a scientific and reasonable teaching mode suitable for students' learning [3] 。

The advantages of the mixed teaching mode
College English teaching requires students to improve their ability to input and output English knowledge, cultivate their critical thinking, creative thinking and cross-cultural consciousness, and improve students' basic quality in an all-round way. On this basis, the hybrid teaching mode combining online and offline can better meet the personalized needs of students, and adopt teaching methods in accordance with their aptitude to carry out different teaching contents for different students. The combination of online and offline hybrid teaching mode provides students with more convenient and diverse learning choice channels, break through the limitation of the original time and space, according to the students' interests, characteristics, habits and advantage factors, can also to a certain extent freely choose the content of learning, place and time.This model not only provides convenient learning conditions for students, but also provides teachers with channels to learn and learn. Teachers can make use of online teaching platforms and teaching resources to develop a perfect set of teaching content, teaching mode and teaching activities through learning and learning from high-quality courses. But teachers need to real-time update of teaching content, according to the social hotspot, news current affairs and students' characteristics of teaching content and activity organization form adjustment, guide students to use the network platform for knowledge preview and review after class, combining with online and offline teaching link, form a complete teaching closed-loop, make the students in strengthen knowledge at the same time, internalize knowledge into their own ability. But there are still some problems with the mixed teaching model [4].

uneven teaching quality, lack of feedback and interaction links
Affected by the epidemic, the reform of traditional education is both a huge challenge and a difficult exam for those teachers who are already used to traditional teaching. In the development and implementation of daily offline teaching, teachers have formed a unique teaching method, but they lack the implementation experience of online teaching, and they also lack the existing online teaching experience that can be learned from. This requires teachers to be familiar with the use of various electronic equipment and online teaching tools, and they need to re-examine and change their own teaching characteristics when teaching in front of the camera. Some teachers often carry out the teaching, often choose to close the real-time discussion area in order to carry out the teaching content smoothly. However, this way cut off the communication channels between teachers and students, which makes it difficult for teachers to grasp the students' learning progress and effect at the current stage [5] . In addition, there is a barrier between screens in online teaching. In the large-scale online education, teachers need a certain time cost to view the real-time discussion area. This situation requires teachers to have the ability to quickly browse and screen the content of the discussion area. Teachers can also make full use of the real-time discussion area to conduct effective and active communication and interaction with students, and guide students to actively participate in online teaching classes. Second, students to participate in online teaching, often appear slip and affected by other equipment learning, teachers can use teaching into news events and social hotspot to attract students 'attention, control students' interest in teaching content and law, appropriate let students to rest and adjust, let students can better melt people to the classroom, stimulate students' enthusiasm for learning. Finally, there are students in college English online teaching output is not sufficient, by the limitation of time and space of online courses, some college English online lack in the teaching link let students show oral English output ability and application ability, some teachers in pursuit of teaching progress, greatly reduced the original English teaching course for students to show time, make the teachers cannot master the students' learning results. Online teaching mode makes teachers to know the students 'own character characteristics, students have part in the image of online virtual world construction and reality, which requires teachers need online teaching, identify and recognize each student's character characteristics and learning basis, and according to different learning progress to carry out personalized teaching.

Easy to external influence, and has certain requirements for electronic equipment and the network
In the process of teaching and learning, both teachers and students are vulnerable to external factors, which reduces the quality of teaching. Because the online teaching mode is carried out based on information technology and Internet communication technology, it has certain requirements for the network environment and electronic equipment. This requires teachers and students to have stable and smooth network connection conditions. In the process of teaching, teachers often adjust the equipment for a long time. Moreover, due to the influence of home isolation, teachers and students also have a noisy family environment that is difficult to carry out courses and learning smoothly [6] . In addition, due to the regional and economic influence, there are certain conditions for the online and offline mixed teaching mode, which also poses difficult problems for the comprehensive coverage of online and offline mixed teaching mode. Secondly, due to the different requirements of each school, teachers and students often need to download multiple software for teaching and learning, many software downloads and cumbersome user registration links and cumbersome online homework programs, so that both teachers and students have different degrees of discomfort. In addition, recently the school has taken the form of online examination, online examination requirements are more strict, requiring students in a closed and quiet room, the room has good lighting conditions and not backlight, in addition to the network signal is strong not stuck, in the live test requires students to put dual positions for live shooting and other requirements. These requirements pose difficulties for students to implement. For example, requiring dual-camera positions for live shooting, which requires students to have two electronic devices that can meet the requirements of clear live shooting. As some test times are arranged on working days, it may be difficult for families who are not at home and have poor economic conditions.

Insufficient monitoring of students' learning situation, and the teaching and assessment methods need to be enriched and improved
Because teachers and students can not face to face between teaching, lead to some independent learning willingness students often adopt policy, have countermeasures, despise their own learning, mostly choose to fool, for example, to help clock in, the online class hanging on electronic equipment, turn to do other things, there are also the learning tasks and homework fool. Due to the deceptive nature of the virtual network, it is difficult for teachers to distinguish the learning situation of students when facing many students. Online teaching also lacks the monitoring of students in learning, which is still insufficient to stimulate students' conscious and active learning consciousness.In addition, in the university English teaching assessment assessment is not enough and weak. Teachers often in classroom performance, homework, attendance and periodic test combination as the main test means of combination, but in the performance composition, paper score occupies a large proportion, this will make the students lack of attention to daily learning, lead to some students in surprise to deal with the exam, also lack of students' English knowledge and language application ability monitoring [7]

Multiple elements to enrich the teaching content
In the classroom teaching, the teachers should constantly use the creative and diversified teaching methods, in order to stimulate the students' interest in learning, and to guide them to study actively.Online animation, documentary and speech can be used to introduce the course content and fully mobilize students' enthusiasm for learning. Students can also be taught through group cooperation, situational dialogue display and role-play to fully participate in classroom teaching, so as to improve their learning experience and improve their independent learning ability.

Improve educational information technology literacy
College English teachers need to realize the flexible application of modern educational information technology. For this purpose, schools can organize teaching for teachers to ensure that teachers can fully and flexibly use and debug electronic equipment for online teaching. Teaching assistants can also be used to assist teachers in organizing the classroom through the online teaching mode. The teaching assistants can assist teachers to view and give feedback on the real-time comment area of online courses by cooperating with teachers. In addition, schools and teachers can organize students to use software teaching to improve their information technology literacy. Finally, teachers should record the live course to ensure the complete communication of the teaching content. Separate video recording is made to explain the content that most students do not understand, to provide students to study and watch many times.

Integration and diversified teaching evaluation methods
The evaluation of learning results in university mixed teaching mode should include the English knowledge level learning situation, students' independent learning ability, independent learning ability, language organization and expression ability, and team writing ability. Multiple evaluation elements need to be implemented by diversified evaluation methods, and teachers need to integrate the activity records, experiment records, learning experience, and questionnaire in the learning record section of the online learning platform on the basis of the traditional evaluation methods.

Conclusion
Mixed online and offline development of teaching and teaching mode and use need teachers will combine between teaching and learning, in exploring and practice to adapt to the development of students stage teaching methods, online teaching to fully cultivate university English application output ability to provide sufficient conditions, realize students' English ability and comprehensive quality, to improve the quality and effect of online and offline hybrid teaching mode.