Level 4 425-449 is divided into passing level; 450-499 is a good level; 500-549 points are basically excellent. CET-4 is a large-scale standardized test sponsored by the People's Republic of China and the Ministry of Education, and implemented by China People's Education Examinations Institute and the Ministry of Education. It is a national teaching examination, which aims to promote the implementation of college English syllabus, objectively and accurately measure college students' English ability, and provide services for improving the teaching quality of college English courses in China. The main target of the examination is college students, undergraduates or graduate students who have completed CET-4 according to the educational syllabus. Standardized grades 4 and 6 were prepared at the end of 1986 and formally implemented at 1987.