Safety precautions on rainy days?

What should you pay attention to on rainy days? Safety knowledge

1. Please slow down on rainy days.

2. In rainy days and there is water on the road, please do not brake suddenly.

3. Before going on the road, please check the vehicle, especially the wipers related to rainy days.

4. When driving, remember to turn on the air conditioner and blow glass to avoid obstructing your view.

5. The rearview mirror is easy to blur, please remember to wipe it in time. < /p>

2. People should not stand under electric lights.

3. Try not to make or answer mobile and landline calls, or use telephone lines to access the Internet.

4. It is not suitable to use showers and solar water heaters. Because the water pipes are connected to the lightning protection ground, lightning current can be conducted through the water flow and cause casualties.

5. Stay away from exposed water pipes, gas pipes and other metal objects in the building.

6. Before a thunderstorm approaches, disconnect the circuit and unplug the power plug. Do not allow TVs, computers, etc. to attract lightning into the room, damaging electrical appliances or even causing fire accidents.

7. Do not pull the iron wire used to dry clothes, bedding, etc. to windows or doors to prevent the iron wire from triggering lightning and causing death.

8. When going out in heavy rain, it is best to wear rubber shoes, which can provide insulation.

9. Never put your head or hands out of the window when you encounter thunder while riding in the car.

Precautions for outdoor lightning protection

Lightning usually hits the spire of the tallest object outdoors, so isolated tall trees or buildings are often the most vulnerable to lightning strikes. When there is a thunderstorm, people should The following rules should be followed outdoors to ensure safety.

1. Do not stay on high-rise platforms, mountaintops, ridges or tops of buildings (structures) during thunderstorms. It is not advisable to stay in or near small buildings, garages, carports, guard booths without lightning protection facilities.

2. Stay away from exposed water pipes, gas pipes and other metal objects and electrical equipment in buildings.

3. It is not advisable to avoid thunderstorms under big trees. If you have to, you must keep at least 5 meters away from the tree trunk, squat down and keep your legs close.

4. If there is a feeling of ants crawling around your head, neck, and hands, and your hair stands up during thunder and lightning, it means that a lightning strike is about to occur. You should lie down on the ground quickly to reduce the risk of being struck by lightning. And take away the metal jewelry, hairpins, necklaces, etc. you are wearing.

5. If you encounter a thunderstorm outdoors and you have no time to leave the tall object, you should immediately find some dry insulation and place it on the ground, and sit on it with your feet together. Do not put your feet on the insulation. outside the ground because water conducts electricity.

6. When avoiding thunderstorms outdoors, be careful not to support the ground with your hands. At the same time, hold your knees with your hands, keep your chest close to your knees, and lower your head as much as possible, because the head is most vulnerable to lightning strikes than other parts of the body. .

7. When you see lightning and hear thunder within a few seconds outdoors, it means you are in a dangerous environment near a thunderstorm. At this time, you should stop walking, put your feet together and squat down immediately, and do not interact with others. Pull together, it is best to use plastic rain gear, raincoat, etc.

8. During thunderstorms, it is not advisable to hold an umbrella in the wilderness, or hold aloft a badminton racket, golf club, hoe, etc., to avoid increasing a person's effective height and becoming a "tip" and being struck by lightning. It is not suitable to play outdoor ball games. It is very dangerous to play football, basketball and other sports during thunderstorms. It is not suitable to stay on or near the water. It is not suitable to wash clothes, fish, swim or play by the river.

9. During thunderstorms, it is not advisable to drive a motorcycle quickly, ride a bicycle quickly, or run wildly in the rain, because the greater the stride of the body, the greater the voltage, and the easier it is to injure someone.

10. If you see a high-voltage line broken by a lightning strike outdoors, you should be more vigilant at this time, because there is a step voltage near the breakpoint of the high-voltage line. People nearby must not run at this time, but should Put your feet together and jump away from the scene.

Signs before a lightning strike

When you are standing in an empty mine, if you feel the hair on your body suddenly stand up, your skin feels a slight tingling, or you even hear a slight A crackling or "chicking" sound is a sign that lightning is about to hit you.

In this case, you should squat down immediately, lean forward, put your hands on your knees, and bend them into a ball. Never lie flat on the ground.

Rescue after lightning strike

After being struck by lightning, the strong voltage causes the human heart to stop beating. Therefore, the cause of death is the heart stopping beating, not being burned. Therefore, if cardiopulmonary resuscitation can be performed within 4 minutes, the patient may be saved and the heart can resume beating. However, people have a misconception that there is still electricity in the body of a person struck by lightning, and they dare not touch him, which often delays the rescue time. If you encounter a group of people who are struck by lightning, it doesn't matter those who can make a sound. Rescue those who can no longer make a sound first.

Try not to use mobile phones during the day

Professor Yu Zhihao, a meteorological expert at Nanjing University, believes that due to the interference of lightning, the wireless frequency jump of mobile phones increases, which can easily induce accidents such as lightning strikes and burn-in. But generally speaking, public settlements are equipped with lightning protection devices, and people are relatively safe in this environment. Lightning will only interfere with mobile phone signals, and at most it will only damage the chip, but will not cause fatal harm to the human body. Once in an open area, people and mobile phones become obvious protrusions on the ground, and mobile phones are very likely to...

Precautions for construction in rainy season

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What are the precautions for safe driving on rainy days?

Rainy days have a huge impact on safe driving. According to statistics, traffic accidents on rainy days are nearly 25% higher than on sunny days, and more than 80% of them are caused by driver errors and failure to pay attention to the essentials of safe driving in rainy days. Therefore, it is necessary for drivers to master some tips for safe driving on rainy days to ensure traffic safety. Experts will introduce to you some things you need to pay attention to when driving in rainy days.

1. Keep a sufficient safe distance

Since visibility is poor on rainy days, it is necessary to maintain a greater distance between vehicles than usual. If the wiper's water sweeping ability is reduced, it will be more difficult to observe the road conditions while driving on rainy days. Especially when driving at high speed, the wiper blade will float upward and the water sweeping ability will be even worse. In addition, when driving on a rainy night, unscratched raindrops will produce various reflected lights under the lights, blurring the vision ahead. Therefore, it is best to put some wax on the front windshield, which can form a wax film on the surface of the glass. The wiper will sweep the water very thoroughly and also protect the glass.

2. Do not restart after turning off the engine

In heavy rain or rainstorm weather, some road sections will be seriously flooded in a short period of time. If you have to wade into the water, you should Use low gear to pass at a constant speed. If the vehicle stalls while driving, do not try to start it again. Blindly starting it may cause the engine to be scrapped. After the vehicle stalls, you should contact a professional repair shop in time. The maintenance personnel will inspect the vehicle on site and confirm that there are no problems before it can be started again.

3. Turn on fog lights when driving on rainy days

Turning on fog lights on rainy days is not to let you see others clearly, but to make other drivers notice you. Make full use of fog on rainy days. The lights enhance driving safety, and the hazard warning lights are turned on when necessary, so that the vehicles behind can always pay attention to the dynamics ahead.

4. Stay away from bicycle lanes when driving on rainy days

Urban areas have dense traffic and people. Pay special attention to bicycles and pedestrians during heavy rains. Vehicles driving in the outermost lane should reduce their speed and pay attention at all times. Cyclists and pedestrians standing on the roadside taking taxis always keep the right window clean.

5. Avoid water intrusion into the engine

Do not cross ditches or puddles at high speed. This will cause water to splash and increase the actual wading depth, which may easily cause water intrusion into the engine. . If the wading depth exceeds the front bumper, it is easy for water to enter from the air filter and air inlet. You should be more vigilant when driving. It is best to check these parts at any time. If you find that the air filter is wet or water has entered during the inspection, you should stop and take action immediately. Measures to exclude. At the same time, pay attention to check whether the waterproof groove at the front windshield is draining smoothly to avoid water accumulation in rainy days, which may cause the engine to stall due to water intrusion.

What should students pay attention to on rainy days?

Recently, due to continuous rain, various accidents occur frequently. In order to ensure school safety during the rainy season, our school has specially formulated Safety precautions in the rainy season:

1. Pay attention to safety when traveling on rainy days.

On rainy days, students are prone to traffic accidents when walking on the road to and from school. Therefore, teachers, especially head teachers, must conduct rainy season traffic safety education for students.

1. Try not to walk on the motor vehicle lane, but walk aside on the sidewalk.

2. Try not to block your eyes with umbrellas and raincoats to ensure you can see the road clearly.

3. When crossing an intersection, pay attention to the passing vehicles and do not compete with motor vehicles.

4. Don’t chase and fight on the road.

5. When taking various transportation vehicles, the operator must be warned to drive slowly, not to rush for the lane, not to rush for time, and would rather be late than have a traffic accident.

2. Avoid falls and stampedes during the rainy season.

The roads are slippery on rainy days, and the playground, stairs, and corridors are also prone to slipping due to rain. Therefore, the following requirements are made:

1. Chasing or fighting in the playground, stairs, or corridors is not allowed. , walk slowly.

2. Go up and down the stairs in an orderly manner, without crowding or collision.

3. Chasing, fighting, and playing games on the stairs and corridors are not allowed

4. Once emergency evacuation is required, teachers and students are required not to panic and to evacuate under the guidance of the teacher. Leave in an orderly manner to avoid stampedes.

5. During indoor physical activity classes, warm-up activities should be done to strengthen self-protection and ensure sports safety.

3. Don’t forget to close the windows during windy and rainy seasons.

During the recent stormy season, please ask the class teacher to remind students to close doors and windows and cut off the power supply of water dispensers and multimedia equipment when leaving class. If you are afraid of forgetting, you can tell the student on duty every day, clean the classroom, and conduct a safety check before leaving

4. Pay attention to lightning protection during the rainy season.

In the rainy season, thunder and lightning often occur, and accidental injuries caused by lightning are common. Therefore, here are the requirements:

1. Do not stand at high places during thunder and lightning.

2. When there is thunder or lightning, never take shelter under a tree or against the wall of a building.

3. During thunder and lightning, try to avoid wires, do not pass under them, and do not touch the wires with your hands.

4. When there is thunder or lightning, try to wear shoes and do not walk barefoot or play in the water outdoors.

5. Try not to use mobile phones or operate any electrical equipment.

5. Strengthen psychological counseling and ensure mental health.

Continuous rainy weather may also make many people feel anxious and depressed. Therefore, once you realize that you may have a mood disorder, you should actively seek help and try to find and eliminate the root cause of your negative emotions.

1. Parents should communicate more with their children and care about their children's thoughts and psychological conditions.

2. Add or remove clothing in time according to weather conditions, and do a good job of keeping warm from the cold.

3. Take the initiative to contact school teachers, follow teachers’ suggestions, and guide children’s life and study.

4. Participate in some indoor games that children like to relieve negative emotions.

5. Strengthen nutrition to ensure the nutritional needs of children’s growth.

What are the precautions for safe driving on rainy days?

Rainy days have a huge impact on safe driving. According to statistics, traffic accidents on rainy days are nearly 25% higher than on sunny days, of which more than 80% are caused by driver errors and failure to pay attention to the essentials of safe driving on rainy days. Therefore, it is necessary for drivers to master some tips for safe driving on rainy days to ensure traffic safety. Experts will introduce to you some things you need to pay attention to when driving in rainy days.

1. Keep a sufficient safe distance

Since visibility is poor on rainy days, it is necessary to maintain a larger distance between vehicles than usual. If the wiper's water sweeping ability is reduced, it will be more difficult to observe the road conditions while driving on rainy days. Especially when driving at high speed, the wiper blade will float upward and the water sweeping ability will be even worse. In addition, when driving on a rainy night, unscratched raindrops will produce various reflected lights under the lights, blurring the vision ahead. Therefore, it is best to put some wax on the front windshield, which can form a wax film on the surface of the glass. The wiper will sweep the water very thoroughly and also protect the glass.

2. Do not restart after turning off the engine

In heavy rain or rainstorm weather, some road sections will be seriously flooded in a short period of time. If you have to wade into the water, you should Use low gear to pass at a constant speed. If the vehicle stalls while driving, do not try to start it again. Blindly starting it may cause the engine to be scrapped. After the vehicle stalls, you should contact a professional repair shop in time. The maintenance personnel will inspect the vehicle on site and confirm that there are no problems before it can be started again.

3. Turn on fog lights when driving on rainy days

Turning on fog lights on rainy days is not to let you see others clearly, but to make other drivers notice you. Make full use of fog on rainy days. The lights enhance driving safety, and the hazard warning lights are turned on when necessary, so that the vehicles behind can always pay attention to the dynamics ahead.

4. Stay away from bicycle lanes when driving on rainy days

Urban areas have dense traffic and pedestrians. Pay special attention to bicycles and pedestrians during heavy rains. Vehicles driving in the outermost lane should reduce their speed and pay attention at all times. Cyclists and pedestrians standing on the roadside taking taxis always keep the right window clean.

5. Avoid water intrusion into the engine

Do not cross ditches or puddles at high speed. This will cause water to splash and increase the actual wading depth, which may easily cause water intrusion into the engine. . If the wading depth exceeds the front bumper, it is easy for water to enter from the air filter and air inlet. You should be more vigilant when driving. It is best to check these parts at any time. If you find that the air filter is wet or water has entered during the inspection, you should stop and take action immediately. Measures to exclude. At the same time, pay attention to check whether the waterproof groove at the front windshield is draining smoothly to avoid water accumulation on rainy days, which may cause the engine to stall due to water intrusion.

Warm reminder: Safety is a common topic, and the rainy season is no exception. No matter how many safety features your vehicle has or how skilled your driving skills are, you should always pay attention to safety when driving in the rain and stay safe. Speed ??and distance between vehicles to avoid traffic accidents.

What safety precautions should you pay attention to when driving on rainy days?

Rainy days have a huge impact on safe driving. According to statistics, traffic accidents on rainy days are nearly 25% higher than on sunny days, of which more than 80% are caused by driver errors and failure to pay attention to the essentials of safe driving on rainy days. Therefore, it is necessary for drivers to master some tips for safe driving on rainy days to ensure traffic safety. Experts will tell you some things you need to pay attention to when driving in rainy days.

1. Keep a sufficient safe distance

Since visibility is poor on rainy days, it is necessary to maintain a larger distance between vehicles than usual. If the wiper's water sweeping ability is reduced, it will be more difficult to observe the road conditions while driving on rainy days. Especially when driving at high speed, the wiper blade will float upward and the water sweeping ability will be even worse. In addition, when driving on a rainy night, unscratched raindrops will produce various reflected lights under the lights, blurring the vision ahead. Therefore, it is best to put some wax on the front windshield, which can form a wax film on the surface of the glass. The wiper will sweep the water very thoroughly and also protect the glass.

2. Do not restart after turning off the engine

In heavy rain or rainstorm weather, some road sections will be seriously flooded in a short period of time. If you have to wade into the water, you should Use low gear to pass at a constant speed. If the vehicle stalls while driving, do not try to start it again. Blindly starting it may cause the engine to be scrapped. After the vehicle stalls, you should contact a professional repair shop in time. The maintenance personnel can inspect the vehicle on site and confirm that there are no problems before it can be started again.

3. Turn on fog lights when driving on rainy days

Turning on fog lights on rainy days is not to let you see others clearly, but to make other drivers notice you. Make full use of fog on rainy days. The lights enhance driving safety, and the hazard warning lights are turned on when necessary, so that vehicles behind can always pay attention to the dynamics ahead.

4. Stay away from bicycle lanes when driving on rainy days

Urban areas have dense traffic and pedestrians. Pay special attention to bicycles and pedestrians during heavy rains. Vehicles driving in the outermost lane should reduce their speed and pay attention at all times. Cyclists and pedestrians standing on the roadside taking taxis always keep the right window clean.

5. Avoid water intrusion into the engine

Do not cross ditches or puddles at high speed, as this will cause water to splash and increase the actual wading depth, easily causing water intrusion into the engine. . If the wading depth exceeds the front bumper, it is easy for water to enter from the air filter and air inlet. You should be more vigilant when driving. It is best to check these parts at any time. If you find that the air filter is wet or water has entered during the inspection, you should stop and take action immediately. Measures to exclude.

At the same time, pay attention to check whether the waterproof groove at the front windshield is draining smoothly to avoid water accumulation in rainy days, which may cause the engine to stall due to water intrusion.

Warm reminder: Safety is a common topic, and the rainy season is no exception. No matter how many safety features your vehicle has or how skilled your driving skills are, you should always pay attention to safety when driving in the rain and stay safe. Speed ??and distance between vehicles to avoid traffic accidents.

What are the precautions for construction on rainy days?

Entering the rainy season, high temperatures and heavy rains, these unfavorable factors cause many difficulties in our insulation construction. The standard "Technical Regulations for the Application of External Wall Insulation" stipulates that the construction of external wall insulation should avoid sunlight exposure in summer, and construction should not be carried out on windy and rainy days above level 5.

Based on the current weather conditions, here are some precautions and suggestions for construction in the rainy season:

2. Material use

1. The shelf life of mortar products is Mortar that has exceeded the shelf life of three months cannot be used for thermal insulation system construction.

2. Mortar that is damp and agglomerated cannot be used anymore and should be treated as discarded. Otherwise, the strength and adhesion of the mortar products will be affected.

3. Safety precautions

1. Strengthen training and education for all types of personnel, strengthen the learning of common sense about safe construction in the rainy season, and improve self-prevention and emergency response capabilities.

2. Strengthen safety inspections and discover problems in time. Conduct regular inspections of the main body of the building, scaffolding, hanging baskets, and construction electricity, identify problems in a timely manner, eliminate them in a timely manner, and repair damaged areas in a timely manner.

4. Construction precautions

1. Construction workers should pay attention to weather changes within a week, make early prevention and preparations, notify the construction team in time, and prepare for extension of the construction period Records, etc., pay special attention to the situation of rain at night;

2. When it rains or is cloudy, workers are prohibited from carrying out construction; and after rain, pay attention to check whether the wall has construction conditions (the ambient humidity should be less than 85 %, the wall surface is completely dry), and the styrene board can be pasted only after the conditions are fully met.

3. When constructing the protective surface layer, attention should be paid to weather changes. The product must not be exposed to rain before it is dried on the wall, and workers should be reasonably arranged for construction. If the protective surface mortar is exposed to rain before it develops strength, a strength test should be carried out to see if rework is necessary.

On rainy days, especially heavy rain days, how do pedestrians carry out safety precautions?

1. On heavy rain days, there is a lot of water in low-lying areas, and some shops or places where electricity is connected illegally are flooded If it is flooded, it is easy for leakage to occur. When you are on your way to work, home or traveling, try to avoid areas with stagnant water. Do not rush through areas with stagnant water without confirmation, especially in areas with stagnant water that no one has passed around. , to prevent accidents caused by water leakage.

2. It rains every day recently. Don’t forget to bring rain gear when you go out. If you get wet from heavy rain when you return home or to work, don’t turn on the air conditioner when you are wet. This will cause cold.

3. Keep medicines to prevent colds at hand, and take medicine as soon as you notice cold symptoms.

4. Because the road is slippery on rainy days, it is easy to fall, so you should walk slowly when going out and avoid running fast.

5. If the residence is in low-lying terrain, "small encirclement" measures can be taken according to local conditions, such as building walls, placing water retaining boards at the gate, and configuring small water pumps.

6. Do not throw garbage, debris, etc. into the sewer to prevent blockage and water accumulation during heavy rains.

7. For residents living on the ground floor, electrical sockets, switches, etc. in their homes should be moved more than 1 meter above the ground to prevent flooding from standing water.

8. When there is lightning and thunder, the power supply should be cut off to prevent electric shock and injury.

9. Pay attention when walking in standing water. Prevent falling into wells, pits or holes.

10. The river is an important drainage channel in the city. It is not allowed to dump garbage and waste at will to prevent siltation.

11. Outdoor activities are not suitable.

Precautions when driving in heavy rain

Pay attention to lights and avoid pedestrians:

When driving in rainy days, you need to pay special attention to pedestrians, bicycles, and motorcycles on the road. After these people hold umbrellas and wear raincoats on rainy days, their vision and hearing will be greatly affected, and accidents may occur if they are not careful. Therefore, when encountering pedestrians, you should slow down in advance, honk more times, and patiently avoid them.

When driving in the rain at night, the water on the ground will reflect light. Appropriately changing the distance and near lights will help to detect obstacles ahead in time.

Driving in heavy rain:

When driving in heavy rain, you should try to keep a straight line and drive at a low speed, and avoid changing lanes unless it is absolutely necessary. Especially on highways, it is best to control the vehicle speed at 30 km/h and increase the distance between the vehicle and the vehicle in front, especially when the vehicle in front is a large vehicle. If you need to stop, it is best to slow down and brake lightly about 100 meters in advance to give the vehicles behind you enough time to respond. When overtaking a large vehicle, be sure to observe the road conditions clearly, because the water splashed by the large vehicle will make the driver of the small car unable to see the situation outside the vehicle for a few seconds, which is prone to accidents. Therefore, when overtaking a large vehicle, you can Set the wiper speed to the fastest setting.

When the vehicle slips:

Do not flash when you see water, or apply the brakes immediately to slow down. Both of these operations can easily cause sideslip and should be avoided as much as possible. If sideslip does occur, if the front wheel is slipping, you should turn in the opposite direction; if the rear wheel is slipping, you should turn in the opposite direction.

Furthermore: 1. Do not stay under tall buildings, big trees, or large billboards to take shelter from the rain to prevent lightning strikes.

2. Do not walk under high-voltage lines.

3. Do not use your mobile phone during thunder and lightning.

4. Don’t wade across the river.

5. Do not walk in the ravine, beware of flooding.

6. Do not climb mountains and be careful of landslides and rolling rocks.

7. Turn off the TV and computer and unplug the power cord and input signal cable.

8. If you encounter a thunderstorm when fishing in open natural waters outdoors, you should put away your fishing rod as soon as possible and take shelter in a safe area to prevent lightning attacks due to too long fishing rods. Especially metal rods should be removed immediately. Put away.

9. If you encounter thunderstorms and strong winds when swimming in outdoor swimming pools or natural waters, you should immediately go ashore to a safe place to take shelter from the rain to avoid danger.

10. Do not ride a bicycle with an umbrella.

11. Put away the debris (including flower pots) on the balcony.

12. Do not enter rashly on unfamiliar roads where there is stagnant water to prevent falling into puddles and causing injury to vehicles or people.

13. When driving on winding mountain roads, be careful to prevent rolling rocks and landslides.

14. Try to avoid the sunken overpass when there is water accumulation or when there is a water accumulation warning sign.

15. There are two criteria for the depth of water on the road. One is whether the water has spread to the floor or exhaust pipe of the car, and the other is whether the water exceeds the center line of the tire. If the water is deep, If the above two standards are exceeded, no forced passage is allowed to avoid water being sucked into the intake pipe and causing vehicle failure.

16. Pay attention to low speed and low speed when the car is crossing water...

Pay attention to safety when it rains essay

In our daily life, we always We will encounter dangers all the time. There are too many unsafe factors around us, many of which are caused by human factors. But if we have a sense of prevention, we can avoid dangers.

A few days ago I saw such a story in a book: a poor mother and her child depended on each other for life. One day, the house suddenly caught fire. In desperation, she asked her child: "What should we bring with us to escape?" The son said: "We should bring the only coin in the house." The daughter said: "We should bring clothes and food." So they rushed to Looking for it in the room, in the thick smoke, the mother shouted decisively: "Child, come with mom, we don't want anything, just save our lives!" In this story, we understand many things besides There is another important aspect of the spirit of maternal love: with life, you can create wealth, and with life, you can have a perfect life.

Safety is important to everyone, and for those of us who have not yet grown up, budding flowers are especially important. However, around us, there are always so many children who do not pay attention to safety, do not cherish life, and turn a deaf ear to teachers’ instructions and parents’ instructions. As a result, they are not only hurt, but also delayed in their studies, and some even endanger their disabilities. life.

For example, some children do not abide by traffic rules and obey the instructions of the traffic police, crossing the road and running red lights; some students like to chase and play near the stairs, deliberately crowding up and down the stairs; some children like to play with sharp scissors and knives; and others Children do not go home after school, like to stay in public places, and even eat unclean food from stalls...the above are all unsafe behaviors. For our own safety, we must walk on zebra crossings when crossing the road. If there are no zebra crossings, walk aside. You are not allowed to bring firecrackers, lighters and other flammable objects into school or with you; you are not allowed to go to construction sites or play on the road; you are not allowed to swim alone in the river; you are not allowed to put your body and hands out of the car window when riding in a car; there is a sudden wind or rain. When it strikes, do not put up a stool to close the window, let alone stand on the window sill to close it; when it rains, you cannot take shelter under a big tree or in a high pavilion. It is safe to take shelter from the rain in a place equipped with a lightning arrester. ....

Each of us must master safety knowledge and enhance safety awareness and self-protection awareness. Master safety self-rescue methods and learn to prevent and respond to various catastrophic accidents. Only by putting safety first can we stay away from danger and grow healthily. How to be safe? There is so much safety knowledge in life. It is everywhere in books, newspapers, and TV. As long as you want to learn, as long as you pay attention, as long as you always think about safety, pretend to be safe mentally, and pay attention to safety in actions, safety will always be with you. We can have safety, stay away from danger, and grow healthily.