At present, most 985, 2 1 1 colleges and universities have completely implemented the application assessment system, and only need to provide the corresponding application materials, so it is no longer necessary to prepare for the professional course exam in advance, and the interview can be conducted after the materials are passed, so the process is much simpler than the previous exams. In addition, due to the difficulty of employment and fierce competition in computer-related majors, the number of candidates and the quality of students are increasing day by day. At the same time, the school has a large number of master students to doctoral students, accounting for most of the places, and each tutor can generally take one or three doctorates at a time, so the competition for doctoral students is increasing day by day. Therefore, if you plan to study PhD, you need to plan as early as possible, start the first project in the next semester of the first year of graduate students or the last semester of the second year of graduate students, and strive to have at least one meeting with SCI or CCF C level or above before the end of the next semester of the second year of graduate students, so as to apply for most medium-sized 985. If the pursuit is higher, some computer-related 985, such as Electronic Science and Technology University, need at least two non-OA SCI journals in more than two districts to have access to teachers. In addition, some schools have higher requirements for English, and Sichuan University requires Band 6 or IELTS >; 5.5 or TOEFL >; 80 points, other students need extra English tests, and some schools can't register without English scores. Therefore, it is necessary to carefully and comprehensively evaluate whether they have a good English level and train their English level in advance. It's better to pass cet 6. If you fail to pass CET-6 for many times, you can try IELTS, which will be recognized by domestic universities. After studying the course, it is not difficult to reach a score of 5.5.