You can use "Pray for those affected by the earthquake", "Hold on to Yushu, pray for Yushu" or "Earthquake common sense" to let students understand how earthquakes can reduce casualties, how to ask for help, and how to protect themselves. The purpose of "earthquake rescue" and "hazards of earthquakes" is to let more people know how terrible earthquakes are, instead of joking with their own lives. They can be "united as one to resist earthquakes", "earthquake heart to heart", "stretching a helping hand to save" Earthquake People”. . .