Measures to prevent drowning: 1. Pupils should swim under the guidance of adults; 2. Pupils can't play by the pond or the river alone; Pay special attention to the pond where no one goes. There are also places with many aquatic plants; 3. Don't go swimming in places without swimming signs, especially in summer vacation, and don't invite friends to swim by the pond without adult supervision; 4. Those who can't swim, can't go to deep water areas, and beware of drowning incidents. People who can't swim should have adults around them, and swimming rings are useless to a person who can't swim; 5. Make proper preparations before swimming to prevent cramps during swimming;