Every family uses gas, we use it for cooking, taking a shower and so on. Gas brings every family convenience, but at the same time, it brings danger. Gas emission happens sometimes, it does harm to people’s body, if the gas emission can not be perceived in time, a small trigger will makes it explode, people will lose their homes even their lives, how dangerous it is！So when we use gas, we should check on them all the time, make sure we shut the gas off when we are not using it.
每个家庭都在使用煤气，我们使用煤气来做饭，洗澡等等。煤气给每个家庭带来了便利，但是同也带来了危险。瓦斯泄漏有时候会发生，损害人们的身体，如果瓦斯泄漏不能及时察觉，一点微小的来源会爆炸，人们会失去家甚至于生命。这多么危险啊！所以当我们使用瓦斯时，我们应该经常检查，当我们不使用时，确认关了瓦斯。