Multiple choice questions on small knowledge about heatstroke prevention

1. 100 safety knowledge questions, multiple-choice questions are best, they must have answers, analysis, and common questions

1. Multiple-choice questions 1. Children under ___ , you can’t ride a bicycle on the road like adults.

Because there are many cars on the road, it is easy to get into danger. A. 10 years old B. 11 years old √ C. 12 years old 2. When riding a bicycle, never compete with ___; do not ride with both hands.

√A. Motor vehicle B. Bicycle C. Pedestrian 3. When the train is running, do not extend any part of ___ out of the window, and do not move around to avoid bruises or burns. √A.Body B.Items C.Food 4. Pay attention to ___ when the subway arrives or starts, so as not to get off or pass the station early.

A. Others talking B. Radio √C. Broadcast 5. Ships sailing on the water are greatly affected by ___ conditions. A.Body B.Health √C.Climate 6. When an electrical appliance catches fire, you must ___ first.

A Call the police at home √B Cut off the power supply C Use a fire extinguisher to put out the fire 7. Where should fireworks be set off? A A place with many people √ B A place where flammable materials are piled C On the grass 8. When clothes catch fire, you need ___. A throws himself on the ground and rolls √B pats the fire on his body with his hands 9. When the oil catches fire, ___ should be used.

√A Foam fire extinguisher B Dry powder fire extinguisher C 1211 fire extinguisher 10. When lighting mosquito coils, you must light them in ___. A. On the window B. On the table √ C On the open space 11. During the football match ___ . A. Wear football shoes with iron spikes √ B. Wear ordinary football shoes 12. During physical education class, you should wear ___ . √ A. Sportswear B. Dress 13. During physical education class, ___ . A. You can bring pins, knives and other metal hard objects √B. No items unrelated to physical education class 14. Beginners to swimming ___ . √A. Should prepare some protective equipment B. You can swim directly in the water. 15. When practicing on the horizontal and parallel bars, there should be ___ . √A. Sponge mat B. Paper 16. Drink ___ water.

√A, high quality B, tap C, boiled D, spring 17. Cold drinks have ___ effect. A. sick √B. relieve heat C. moisten throat D. cool 18. Food poisoning is ___.

√A. Very dangerous B. Normally dangerous C. No big deal D. Very scary 19. Always pay attention to the awareness of ___. √A. Self-protection B. Poisoning C. Eyes D. Body 20. Food that has been left out for ___ cannot be eaten.

A. Not too long √ B. Too long C. Short 21. When taking public transportation for an outing, you should A. Rush in all directions B. Don’t be in a hurry and take your time C. You can get on any one √ D. Press Plan, follow sequence, and act quickly 22. When a fire breaks out, you should ___ immediately. √A Run downstairs along the fire escape B Take the elevator to escape C Jump out of the window 23. In which season is it generally better to arrange an outing? √A. Spring B. Summer √C. Autumn D. Winter 24. When visiting a production site, you should A. Look around B. Play with classmates C. Leave if you are not interested √ D. Follow the instructions and operation 25. When visiting, you should A. Move freely as you like B. Take your time to see if it looks good√C. Follow the instructions as plannedD. Stay alone 26. Never go there to play.

A. Beach √B. Construction site C. Paradise 27. You cannot eat the food given outside. √A. Stranger B. Family 28. Never be petted, otherwise it will be dangerous! √A. Scratch B. Lick 29. Climbing high is very dangerous, and you will get injured if you are not careful.

A. Toes √B. Brain 30. Never go to the construction site to play, there are many hidden things there.

A. Game B. Treasure √C. Danger 31. When the highest temperature in the city is expected to be or have reached above 10 degrees within 24 hours.

A.32 B.34 √C.35 D.38 32. When the typhoon warning signal is white, tropical cyclones may affect our city. A.12 B.24 C.36 √D.48 2. True or False Questions 1. When crossing the road and encountering a road without sidewalks, walk on the right side of the road.

(√) 2. On the highway, do not stand, open the window or shake when riding. (√) 3. You don’t need to wear a seat belt when flying.

(*) 4. It is strictly prohibited to carry flammable, explosive, corrosive and radioactive items, knives and other dangerous items on board a plane. (√) 5. When entering and exiting the subway platform, you must go up and down in sequence, and stand firmly when standing on the escalator to prevent falls.

(√) 6. Dry powder kills the big brother. There are not many multiple-choice questions with explanations. I have tried my best. Please give me some points. Safety knowledge competition test question 1. Question 1. What should be done first to put out an electrical fire? ? Answer: Cut off the power supply. 2. After dialing "119" in the event of a fire, what should be reported to the "119" station? Answer: The district, county and street where the fire is located, the burning materials, the size of the fire, the threatened materials, the name, unit, phone number of the caller, etc. should be reported, and personnel should be sent to the intersection to greet the arrival of the fire truck.

3. What should you do when you find that the LPG bottle or stove is leaking? Answer: (1) First, close the angle valve of the gas cylinder and open the window for ventilation to allow the flammable gas to disperse; (2) It is strictly forbidden to use electrical appliances and all fire sources; (3) Immediately find a liquefied petroleum station for timely repair or replacement. 4. Why can’t LPG cylinders be heated by fire or other methods? Answer: Liquefied petroleum gas is originally a gas. It turns into a liquid by increasing the pressure. Therefore, the saturated vapor pressure in the cylinder is greater than that of ordinary liquids. As the temperature increases, the liquid in the bottle vaporizes rapidly and the pressure increases. Increases sharply, and when the pressure strength of the cylinder is exceeded, there is a risk of explosion.

5. After a fire broke out in a place, a comrade picked up a foam fire extinguisher and ran to put out the fire. Is it okay for him to do this? Why? Answer: No. Because: when he carried the foam fire extinguisher, the chemicals in the fire extinguisher barrel reacted chemically to produce carbon dioxide gas foam, which was sprayed out from the nozzle at a certain pressure, thus failing to extinguish the fire.

6. What fires cannot be put out by foam fire extinguishers? Answer: (1) It cannot put out electrical fires; (2) It cannot put out fires caused by water-based items; (3) It cannot put out fires caused by valuable items or instruments. Because foam contains 97% water, it cannot extinguish electrical appliance fires (water is conductive), fires caused by water-resistant substances (can burn when in contact with water-based objects), and fires involving valuables and instruments (leaving stains). trace).

7. How to use a dry powder fire extinguisher? Answer: First unplug the safety pin, hold the nozzle with one hand and aim it at the fire point, and press the handle with the other hand. 8. How to pay attention to fire prevention when using electric mattress? Answer: (1) Electric mattresses cannot be powered on for a long time, and the power must be cut off after personnel leave; (2) Electric mattresses are strictly prohibited from folding to prevent damage to the heating wire and accidents; (3) Electric mattresses should not be used on sofa beds, and the electric mattress switch must be turned on Place it in a place that is not easy to touch; (4) If the electric mattress overheats after being powered on, stop using it.

9. Why are cigarette butts?

2. Tips for preventing heat stroke

When you find that you or others have symptoms of premonitory heat stroke or mild heat stroke, the first thing to do is to quickly evacuate the high temperature environment that caused heat stroke and choose a cool place Rest in a ventilated place; and drink more refreshing drinks containing salt.

You can also apply cooling oil, Fengyoujing, etc. on the forehead and temples (temples), or take traditional Chinese medicines such as Rendan, Shidishui, Huoxiang Zhengqi water. If blood pressure drops or collapse occurs, you should lie down immediately and go to the hospital for intravenous infusion of saline.

For those with severe heat stroke, in addition to immediately moving them from high temperature environments to a cool and ventilated place, they should also be sent to the hospital quickly and comprehensive measures should be taken for treatment. If you are far away from the hospital, you should remove the patient from the high temperature environment, wrap the patient with wet sheets or wet clothes, and provide a powerful fan to increase evaporative heat dissipation.

While waiting for transport, it is also a good idea to soak the patient in a lake or river, or even to cool him with snow or ice. If the patient is shivering, the cooling process should be slowed down, because shivering can increase core body temperature (warning: the temperature should be measured every 10 minutes, and the body temperature should not be allowed to drop to 38.3°C to avoid continued cooling and hypothermia).

3. What are some tips to prevent heatstroke in summer

Tips to prevent heatstroke in summer: 1. Replenish water regularly and do not wait until you are thirsty before drinking water. Your body will already be dehydrated by then. state.

Some trace elements in the body will also be taken away with the evaporation of water, so you should drink some salt water appropriately. When drinking, drink slowly and don't drink suddenly when you are thirsty.

Drink warm water, not ice water. Drink water regularly and don’t wait until you are thirsty.

Drink boiled water, not raw water. Drink fresh warm water, not "stale" water.

2. Adequate sleep can relax the brain and body systems and help prevent heatstroke. Be careful not to lie under the air outlet or electric fan of the air conditioner when sleeping to avoid suffering from air conditioning disease and heat cold.

3. Eat less cold drinks, because eating a lot of cold drinks will affect the normal operation of various system functions due to the sudden drop in local temperature of the human body, making it easy to suffer from heat stroke. 4. Add enough protein, such as fish, meat, eggs, milk and beans.

5. Eat more fresh fruits and vegetables that can prevent heat stroke, such as tomatoes, watermelon, bitter melon, etc. 6. Remember to prepare sun protection equipment when going out. It is best not to walk in the hot sun between 10 am and 4 pm.

If you must go out at this time, be sure to wear a sunhat, sunglasses, sunscreen, and bring plenty of water. 7. Try to use cotton, linen, and silk fabrics when going out, and wear less chemical fiber clothes to avoid being unable to dissipate heat in time when you sweat a lot.

8. Heatstroke prevention and cooling medicines, such as Shidishui, Rendan, Huoxiang Zhengqi water, etc., must be kept at hand. 9. Eat more foods rich in potassium, such as soybeans, pinto beans, kidney beans, peas, red beans, edamame, radish leaves, potatoes, rape, celery, spinach, kelp, yam, lettuce, seaweed, longan, dates, bananas, etc. , In addition, there is also a certain content in milk, carp, eel, nuts, etc.

10. Actively treat various primary diseases, increase resistance, and reduce factors that induce heatstroke. 11. You can use the scraping method, that is, use a scraping board or alcohol-sterilized gauze to scrape up and down both sides of the back, ribs, or forehead. If a dark purple color appears, you can also apply cooling oil.

12. Slow down when engaging in outdoor activities, slowly adapt to changes in temperature, and do not show off. 13. When it is too hot, you should shower your head and neck with cold water to let the water evaporate and help dissipate heat.

14. Heatstroke may cause the body to gradually collapse over several days, so if your weight plummets within a few days, you should be careful. 15. Wear a hat when going out in summer to slow down the heat absorption of your head and neck, especially for people who are bald or have little hair.

16. Don’t go shirtless when going out to avoid absorbing more radiant heat. Ventilated cotton shirts are more effective in relieving heat than bare shirts. 17. Eat more melons: winter melon is a diuretic, anti-inflammatory, clearing away heat and detoxifying.

Luffa relieves heat, dispels wind, resolves phlegm and cools blood. Bitter melon dispels heat and clears the heart.

The fiber in cucumbers can expel corrupted food from the intestines and lower cholesterol. Pumpkin nourishes vital energy, reduces inflammation and relieves pain.

18. Eat more cool vegetables: tomatoes, eggplants, lettuce, asparagus, etc. 19. Eat more bitter vegetables, which is helpful to relieve summer heat and relieve summer dampness. Bitter melon, bitter vegetables, Kuding tea, and bitter bamboo shoots are all excellent foods for preventing summer heat.

20. Food in summer is particularly easy to spoil, so it is best to buy it and cook it immediately. 21. Sleeping naked can easily cause the abdomen to catch a cold. The gastrointestinal smooth muscle is more sensitive to temperature changes. It is easy for the cold to affect the small intestine, causing paroxysmal abdominal pain, mainly around the navel, and diarrhea.

Therefore, no matter how hot the weather is, you should also pay attention to keeping your abdomen warm. 22. Do not leave the air conditioner on overnight. It is best to use natural wind to cool down the room.

The air conditioner should not be adjusted too low. It should be controlled at 27 to 28 degrees, which is 5 to 6 degrees Celsius lower than the outdoor temperature. The air conditioner should not be used continuously for too long, especially if it is left on overnight.

A fan can be used instead of an air conditioner and should be placed far away from people. 23. If you want to keep the bed cool and fall asleep as soon as possible, choose to fill a hot water bottle with ice water. Use this "cold" water bag filled with ice water to cool your ankles and knees, and you will fall asleep quickly.

24. Put the sheets in a plastic bag, put them in the refrigerator for 1-2 hours, and put the sheets on the bed before going to bed. 25. Choose a cool and sweat-absorbent organic cotton pillow for freezing. As long as your head is cool, your body will feel much cooler.

26. You can flush your wrist with tap water every 3 hours for one minute each time. Because the wrist is where arterial blood flows, flushing with water can effectively lower the blood temperature. .

4. What are some common sense of daily life to prevent heat stroke?

What are some common sense of daily life to prevent heat stroke?

Tips to prevent heatstroke in summer. To prevent heatstroke, you should pay attention to the following points:

1. Try to avoid going out during the high temperature period between 11 and 15 o'clock, and do not expose yourself to the sun for a long time. Or activities or work in environments with high temperature, high humidity, or stagnant airflow.

2. The temperature difference between indoor and outdoor air conditioning should not be too large. It is advisable to use an air conditioner where the indoor and outdoor temperature difference does not exceed 5 degrees. Even if the weather gets hotter, the indoor temperature of the air conditioner should not be lower than 24 degrees. Don't blow the air conditioner on yourself.

3. When going out, be careful to use sun umbrellas, sun hats, sunglasses and other items, and apply some sunscreen and skin care products on your skin to protect yourself from direct sunlight.

4. Avoid "quick cooling" after returning from exposure to heat. Don't turn on the air conditioner, fan or take a cold shower immediately. This will cause the pores all over the body to close quickly, making it difficult for the body's heat to dissipate. It will also cause insufficient blood supply to the brain due to rapid contraction of blood vessels in the brain, making people dizzy.

5. The temperature in summer is high and the body's water evaporates more. Therefore, it is necessary to replenish water in time and not wait until you are thirsty before drinking. By then, the body is already dehydrated. In addition, some trace elements in the body will be taken away as water evaporates, so you should drink some salt water appropriately.

6. Wear clothes made of cotton or silk with good breathability, and do not go shirtless when going out. When riding a bicycle for a long time under the scorching sun, it is best to wear a long-sleeved shirt, a shawl, or a sun hat. In addition, red is the most sun-protective color for clothes, so you can choose appropriately.

7. Summer is the season for eating cold drinks, but in fact, the cooler you eat, the easier it is to suffer from heat stroke. Because a short-term drop in local temperature of the human body will make the human body unable to adapt to such a low temperature, the digestive system will be affected, and in turn affect the normal functioning of various systems throughout the body. In hot summer, it is easy to cause heat stroke.

8. Eat more fruits such as pears and watermelon; you can drink some herbal tea to relieve heat and reduce dampness, or drink winter melon, lotus root, barley kernel soup, etc. In addition, mung bean soup, chrysanthemum tea, sour plum soup, etc. are also convenient and ideal drinks to relieve summer heat.

There are three treasures for everyone to choose from to prevent heatstroke: vinegar, hot tea, and soy milk.

Vinegar can help digestion, promote gastrointestinal motility, and produce fluids to relieve heat; hot tea can help the body adjust the imbalance caused by high temperature and play a role in heating with heat. It is a good heatstroke prevention drink ; Soy milk is rich in nutrients. In summer, if you have a bad appetite and don’t like to eat, it will be very dangerous if the heatstroke conditions we mentioned above occur. Drinking a cup of soy milk at this time will not only supplement nutrients, but also won’t Causes irritation.

9. When body temperature rises, the decomposition of protein in the body also increases, so the amount of protein supplemented daily must also increase. Generally, about 130 grams of protein is required daily. In summer, you need to supplement enough protein, such as fish, meat, eggs, milk and beans, and avoid greasy fried and grilled products;

10. If you feel unwell when traveling, exercising or on a business trip, you can use some Rurendan , cooling oil, Fengyoujing, Shidishui, peppermint tablets and other cooling drugs.

11. Take a bath frequently, or use the conditions around you to lower your body temperature appropriately to prevent excessive evaporation of body water.

12. Get enough rest and don’t burn the midnight oil to avoid lowering the body’s resistance. Good health is the foundation of everything. Don't overexpend on our health.

13. In the hot summer, heatstroke prevention and cooling drugs, such as Dishui, Rendan, Fengyoujing, etc., must be kept at hand for emergency use. When going out, try to use cotton, linen, and silk fabrics as much as possible. Wear less chemical fiber clothing to avoid heat stroke due to inability to dissipate heat in time when you sweat a lot.

14. The elderly, pregnant women, and people with chronic diseases, especially those with cardiovascular disease, should reduce outdoor activities as much as possible during high temperature seasons.

15. Don’t wait until you are thirsty before drinking water: Don’t wait until you are thirsty before drinking water, because thirst already means that the body is dehydrated. Ideally, drink 1.5 to 2 liters of water per day, depending on the temperature. When you sweat a lot, you can add some salt water to make up for the salt your body loses due to sweating.

In addition, the human body is prone to potassium deficiency in summer, making people feel tired and fatigued. Potassium-containing tea is an excellent summer drink.

16. Summer seasonal vegetables, such as lettuce, cucumbers, tomatoes, etc., have a high moisture content; fresh fruits, such as peaches, apricots, watermelons, melons, etc., have a moisture content of 80 to 90, and can be used Stay hydrated. In addition, dairy products can not only replenish water but also meet the nutritional needs of the body.

5. 10 multiple-choice questions asking for life tips

1. Single choice

1. Eating ice cream does not quench your thirst mainly because it: A. Contains Protein B. Contains fat C. Contains sugar

2. Which of the following is the hematopoietic organ of the human body? A. Heart B. Bone marrow C. Kidney

3. Which of the following ball games does not have an "offside" rule? A. Football B. Basketball C. Ice hockey

4. At what height does my country’s railway department stipulate that children must pay full fare? A.1.20 meters B.1.30 meters C.1.40 meters

5. The word "stepping stone" comes from: A. Examination B. Apprenticeship C. Officialship

6. About the following The incorrect statement about pruning flowers and trees is ()

A. Cut off the tips of some new branches

B. Cut off dead branches, weak leaves and some overly dense branches

C Cut off the overly long main root

D Remove the adventitious buds on flowers and trees

2. Multiple choice questions (15 questions, 2 points each***30 points)

1. To prevent intestinal diseases ( )

A. Exercise to eliminate the four evils.

B Do not drink raw water, do not eat spoiled food, and wash fruits before eating them raw.

C Pay attention to disinfecting dishes and chopsticks.

D Try not to go to public toilets

2. The diseases spread by rats are ( )

A. Plague B. Epidemic hemorrhagic fever C. Malaria D. Jun Leptospira

3. Mosquito-borne diseases include ( )

A. Meningococcal meningococcal B. Japanese encephalitis C. Malaria D. All three can be used

4. Fly-borne diseases The diseases include ( )

A. Dysentery B. Enteritis C. Cold D. Hepatitis

5. To prevent colds ( )

A. Exercise to enhance resistance B. Regular prescription Ventilate through windows

C. Increase or decrease clothing with climate change. D. Do not visit patients’ homes and avoid public places when colds are prevalent.

6. To prevent fractures ( )

A Pay attention to abide by traffic rules and prevent traffic accidents B Pay attention to safety when going up and down stairs or working at heights

C Avoid climbing high to fetch objects to prevent falls and fractures C People with osteoporosis should avoid strenuous exercise Exercise

7. First aid treatment for heat stroke ( )

A In case of mild heat stroke, you should immediately evacuate the high temperature environment and rest in a ventilated and cool place

B Drink sugar, salt water and Refreshing drinks, or taking Rendan orally

C Quickly cool down the patient physically

D Those with severe heat stroke should be sent to the hospital immediately for rescue

8. Mental health is Refers to ( )

A. Maintain optimism and adapt to the social environment. B. Adjust the body and mind with a healthy lifestyle.

C. Create good interpersonal relationships. D. Family harmony

9 , The role of green plants in protecting the environment ( )

A Greening and beautifying the environment B Producing oxygen

C Some plants can absorb pollutants in the environment D Absorb noise and regulate the climate

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10. To prevent myopia, we must do the "Three Don't Looks" ( )

A. Walking or riding in a car without reading B. Lying down without reading

C The light is too dark or Too strong to read D. To eat without reading

11. Prevention of infectious diseases should focus on ( )

A. Manage the source of infection B. Cut off the transmission route C. Protect vulnerable groups D. All three of the above All correct

12. Prevention and first aid of gas poisoning ( )

A Keep the doors and windows closed when lighting a fire for heating at home B Open the windows frequently for ventilation

C People with severe gas poisoning should be sent to the hospital immediately for treatment. D. Perform artificial respiration and chest surgery when breathing and heartbeat stop.

13. To prevent ascariasis, you should ( )

A. Before meals and after going to the toilet B. Wash your hands B. Don’t drink raw water C. Wash fruits when eating them raw D. Be jealous

14. To prevent electric shock ( )

A. Popularize safety knowledge B. Faulty household appliances Make timely repairs

C Do not use hand pulls when rescuing people who get electrocuted

D Do not take shelter under big trees or in empty tall buildings during thunderstorms; do not stand at windows during thunderstorms , under lights or near electrical appliances

15. Prevention of rabies After being bitten by a dog, you should ( )

A. Go to the nearest hospital for treatment in time B. Inject rabies vaccine in time

C Inject atropine D Hospitalize for observation or inject glucose solution

1. (A B C) 2. (A B D) 3. (B C) 4. (A B D) 5. (A B C D)

6. (A B C D) 7. (A B C D) 8. (A B C D) 9. (A B C D) 10. (A B C)

11. (A B C D) 12. (B C D) 13. (A B C) 14 , (A B C D) 15. (A B

6. Prevent heatstroke in summer

20 words of common knowledge for third grade students

(1) What is the cause of heatstroke?

Heat stroke is caused by people being exposed to high temperatures or sunlight for a long time. It mostly occurs when standing, working, sleeping, or walking under the scorching sun for a long time. Mild heatstroke may cause dizziness, tinnitus, chest tightness, palpitation, limb weakness, thirst, and nausea; severe heatstroke may be accompanied by high fever, coma, convulsions, etc.

(2) How to prevent heat stroke during outdoor activities?

1. Drink water. After sweating a lot, replenish water in time. When going out for activities, especially hiking, climbing or going to places where water is scarce, be sure to bring enough water. If conditions permit, you can also bring some fruits and other thirst-quenching foods.

2. Cool down. Before going out for activities, you should be prepared for sun protection. It is best to prepare a sun umbrella, sun hat, and wear light-colored and breathable clothing. Once there are signs of heatstroke when going out for activities, take immediate measures to find a cool and ventilated place, untie your collar, and lower your body temperature.

3. Prepare medicine. You can bring some medicines such as Rendan, Shidishui, Huoxiang Zhengqi water with you to relieve the symptoms caused by mild heatstroke. If the symptoms of heatstroke are severe, you should be sent to the hospital for treatment immediately.

(3) What else should we pay attention to to prevent heat stroke?

1. The amount of activities during summer recess should not be large and strenuous exercise should be avoided. The more you move, the more you sweat, which can lead to heatstroke.

2. In summer, the days are long and the nights are short, and the weather is hot. People do not get enough sleep. Taking a nap can effectively replenish sleep. At the same time, it can avoid the high temperature period at noon and reduce the possibility of heat stroke. It is not only beneficial to health, but also ensures safety. Have enough energy to devote to learning.

On May 19, in order to conscientiously do a good job in campus safety and ensure the safety of teachers and students, Liancheng Primary School carried out multi-level and comprehensive anti-drowning and heatstroke prevention measures throughout the school based on the actual situation of the school. Special safety education activities prohibit students from catching fish or swimming in the river after school. At the same time, they also carry out heat stroke prevention education for students, reminding students not to move or play outdoors when the temperature is high to avoid heat stroke.

First, schools should actively create a “drowning prevention” safety education atmosphere. Promote drowning prevention knowledge to all students through campus broadcasts, posting slogans, publishing blackboard newspapers with the theme of drowning prevention safety education, etc., and conduct relatively systematic education on drowning prevention safety knowledge to students, so that students have a broader and deeper understanding of safety knowledge. understanding.

The second is to work together with home and school to prevent students from drowning. By contacting parents, we remind them of safety precautions against drowning during holidays and after school hours, enhance parents’ safety awareness, and effectively fulfill their responsibilities as guardians. Children should be regularly educated to abide by the relevant regulations of the school, and a linkage mechanism between the school and parents should be established to strive to prevent the occurrence of "drowning" accidents.

The third is to strengthen routine management. Strengthen student management, guard duty, and discipline education for students to ask for leave and get out of school, and on their way to school. Head teachers and teachers in each class must count the number of students before class, identify the reasons for students who do not arrive at school, and contact parents in a timely manner. Students are required not to swim in the water privately; not to swim with others without permission; not to swim without the guidance of parents or teachers; not to swim in waters without safety facilities or rescuers; not to swim in unfamiliar waters. swim. Strictly prevent safety accidents caused by swimming and nip them in the bud.