As we all know,it is very common fo

As we all know,it is very common for yong people to use cellphones，but among them, they are addicted to smart phones。First of all,some people think that in today's society, smart phone is an indispensable and important communication and use tool in society. It can bring us more convenience. Some people think that smart phone makes more people indulge in it.Second I think smart phones can be used as an important tool in our study and life in modern society. It can not only let us know all aspects of knowledge we don't know, but also give us answers at any time if we encounter problems that we won't know when we study.The last but not least,we must have self-control.To sum up, smart phones bring more benefits to us and make our life and work more convenient。