1, first know the tutor. The unit, title and research field of the tutor. This information should be found in the information of ordinary school teachers or university teachers. If not, you can search more on the postgraduate entrance examination evaluation network and university online.

2. After knowing his research field, there are several methods. The teacher's information may introduce his published papers. You can go to the database like HowNet on the website of the school library to inquire, download and read. If you can find this tutor on the university website, there are usually tutors' papers on this website, and some teachers upload them themselves and can download them directly. If the tutor doesn't upload it, you can send a letter to the teacher on this website, indicating that you want to read his paper. Most teachers will give it.