As we all know， fire is one of the most terrible killers in our modern society。We know that fire is mainly caused by smokers， followed by defective insulations and children playing with matches。 In 2002 ，thousands of fire happened all over the country， of which 50 percent was caused by smokers who left cigarette-ends everywhere。 Those who smoke should make sure that the cigarettes are stubbed out before being thrown away。 Also， smoking should not be allowed in public places。 30 percent of fire was caused by defective insulation。 Workers should know the importance of good insulation for people"s lives。 At homes we must pay special attention to electric wires and make sure that they are safe。 20 percent of fire are caused by children playing with matches。 We should warn children of the danger of playing with matches。

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No matter what type of the reason it was， there was one thing in common:carelessness。 So if everyone in the country is careful enough， more fire could be avoided。

我们都知道火灾是现代社会最可怕的杀手之一。火灾主要是由吸烟者、绝缘不良和孩子玩火柴引起的。在2002年，全国发生了成千上万起火灾，其中50%是由于吸烟者随便扔烟头引起的。那些吸烟者应该在扔烟头前确保烟头已经被掐灭。而且，公共场所应该禁止吸烟。30%的火灾是由于绝缘不良引起的，工作人员应该懂得绝缘对人们的重要性。在家里时我们应该尤其注意电线，要确保它们的安全性。20%的火灾是由于孩子玩火柴引起的，我们应该警告孩子玩火柴的危险性。

不管是哪种类型的原因，它们都有一个共同点：粗心。因此如果国家中每个人都足够细心，那么更多的火灾是可以避免的。