The four "unifications" mainly refer to the following four requirements for the school, which are directly related to the safety of teachers and students at school: students are not allowed to return to school without the approval of the school; Irrelevant personnel outside the school are not allowed to enter the school gate; Teachers and students will check their identity and body temperature when they enter the school gate; All patients with fever and cough were observed in medical isolation, and disobedience to managers was dealt with seriously.
Therefore, controlling the school gate, only allowing students to enter and leave, and checking their identity and body temperature is to keep all the risks of infection out of the school gate, at least to ensure the absolute safety of teachers and students in the school.