What was the main content of Yu Dan's lecture at Gansu Children's Channel at 8: 30 this morning? Please watch the video! ! !

First, when there is an earthquake in school, we should keep a cool head and don't panic. You can hide under the desk and protect your head with a schoolbag. When the earthquake stops, run out of the classroom and go to an empty place without tall buildings. Don't come back to get things to prevent aftershocks.

Secondly, we talked about infectious diseases in spring, such as respiratory infectious diseases, chickenpox, measles, flu, hand, foot and mouth disease and so on. Vaccination should be carried out on time, indoor windows should be ventilated, personal hygiene should be paid attention to, outdoor sports should be carried out, and infectious patients should be kept away. Schools should conduct regular morning and afternoon inspections to prevent the occurrence of infectious diseases.

Third, the cause of the fire was caused by careless use of fire and electricity. The three conditions of fire are: fire source, combustible material and combustion-supporting material, and the hidden danger of fire should be eliminated. In case of fire, you should know how to save yourself and call 1 19 at the same time.

The fourth is to talk about common sense of traffic safety. Let's know the traffic laws, know the traffic signs and obey them. It also talked about walking safety, riding safety and riding safety.