?As we know , with the development of society , now smart phones are widely used by more and more people and are playing an important role in our life.

?Firstly, smart phones make it easy for people to communicate with each other. No matter how far away with others，as long as there is a signal, we can talk to others instead of making an appointment.

?Secondly, we can search all kinds of information by using a smart phone. For example, we could get any place where you want to go with navigation.

?Thirdly, with the camera function of smart phones, we can take photos at any time and record a lot of information or moments in time. We also can use other softwares to facilitate our daily life and make our work more efficient.

?With smart phones bring convince, they do harm to people's life in some extent. Too much attention on smart phones is easy to overuse our eyes and harmful to our health.

?We should make use of smart phones to facilitate our life. At the same time, we should keep focus on the enjoy of real life, not the Internet world.