fire and catastrophe fire are the origin of life. In the cold winter night, it brings people the warmth like spring; Fire is beautiful, it makes people walk into a hazy and warm world; Fire is selfless, it is desperate to sacrifice for people; It is heartless to have fire, how many families are broken and how many lives are lost because of it. Moreover, even the "round and bright circle" with the reputation of "the garden of ten thousand gardens" suddenly turned into ashes, which cast a shadow like carbon black on the hearts of many people! Last year, a big fire broke out in a song and dance club in Longgang District, Shenzhen, which not only destroyed this large casino, but also claimed 46 unlucky lives. The cause of the fire was just that a consumer accidentally lit the fireworks in his hand, and the fireworks hit the ceiling and caused a fire. The fire instantly burned to the whole hall, but people fled in a hurry, but they couldn't find the exit in the dark. In the panic, people stepped on people, and the whole closed hall was full of smoke. Some people fell to the ground because of inhaling a lot of toxic smoke, and some people broke the glass window and jumped to escape, but the floor was too high, and the chances of survival were very small. There is no escape route, no ventilation system, and the floor is too high, which are the main reasons for a large number of casualties. If the investor-the owner of the song and dance club knows how to regard safety as the first priority, he will definitely install a strict fire control system in the entertainment place, design a number of escape routes with luminous signs, and ensure the smooth passage; Install sensitive sprinklers on the ceiling; Install a large ventilation system; High-pressure fire box and other fire-fighting equipment, I believe that the degree of casualties in this fire will definitely be reduced to a minimum. It can be seen that it is urgent for everyone to learn fire protection knowledge and understand it. Of course, the chief culprit in the fire is fire, so why don't we just use fire? That's definitely impossible. Our daily life and national production are inseparable from fire. So what should we do? That must be prevented! Electricity is one of the most intimate energy sources in our daily life, but once a short circuit occurs, it will instantly produce high temperature, which will make the wire sheath catch fire and ignite the surrounding combustible materials, thus causing a fire. Therefore, we must use electricity carefully, replace the worn-out wires, unplug the unused electrical appliances, and turn off the main switch of the power supply if we are not at home for a long time. Gas is another important energy source for people to replace firewood. It is used for processing food and heating. It is stored in steel cylinders or pipes. If there is leakage in a closed room, the concentration of gas will be higher and higher. When it reaches a certain concentration, it will explode when it meets Mars. Therefore, remember to close the gas valve and keep indoor ventilation when you run out of gas every day. Fire is a double-edged knife. If we know how to use it, it will bring us benefits. If we don't know how to use it, it will hurt us irregularly. Therefore, we should strengthen our understanding of fire, so that it can only bring us happiness, not harm. 　

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