There were so many people died of electricity,so we should use the electricity very carefully,it is really dangerous if you do not take care about the electricity.First,we should know which things are conductor,and be careful of the conductor when you near from electricity,the bodies of people are also a conductor,and including water,we mustn't touch the bnc connector plugs(插销) when our hands are wet,and do not touch the electrical wire when it broken,it is important to take care of our life from electricity,that's all we should know.Or we could learn more about the safety of electricity.
With the development of the modern technology，private car is no longer a luxurious thing for ordinary people，more and more people drive to work instead of going by bus. The popularization of private car has many advantages.First， it is very convenient and time-saving ，you can drive your own car to the workplace instead of waiting for the crowded bus and afraid of being late for working.Second，it can also improve the traffic structure，and help to mitigate the stress of the traffic.Third， the popularization of private car can help to promote the car industry and any other interrelated industries. I believe that in the future the private car will become the most important vehicle and we cann't live without it.
Last January the New Year began on Thursday. I shall never forget that day because I almost died of fright. My brother and I were walking down the road， followed by the dog. I was carrying a cake to a friend. My brother is a football fan， he carried a ball in hand. A car came toward us. I thought that both the dog and my brother were safe， but suddenly the ball fell off my brother's hand and rolled to the middle of the road. Our dog ran after the ball. My brother ran to save our dog. Luckily the driver saw this， and was able to stop the car in time. How pleased I was! Maybe our dog wanted to get the ball back for he often helps my brother.
Safety is very important for everyone.As students,we should pay more attention to safety.Firstly,there are more and more cars on the road now.So when we cross the road we must be careful so that we can’t be hit by the car.Then,having healthy food is also important.We shouldn’t eat lots of junk food or unclean food.It isn’t good for our health.What’s more,we should use the Internet carefully.When a net-friend wants to invite you to meet outside,you had better refuse him.He may be a bad person.Finally,we should learn some common knowledge of safety to protect ourselves.In a word,if we do these things well,our life will be better!