The main advantage of mobile phones is that people can use them anytime and anywhere especially when an emergency occur.In addition,people can access the internet whenever they use the mobile phones,so business people can use them at work to get information from the internet more conveniently.Moreover,it greatly enhance the efficiency of people's communication.Mobile phones can make people keep in touch in spite of long distance,which turns the world into a small village.Finally,another point in favour of mobile phones is that you can avoid disturbing anyone when he is sleeping or working because in that case people often turn off their mobile phones.（利）
On the other hand,there are some drawbacks,too.overuse of cellphone do harm to people's health,it has negative effects on people's eyes,and many people know that the radiation emitted by mobile phone cause brain tumor.If you talk for so many hours,you are going to have headache and ear problems.some people heavily dependent on mobile phone will lost their face-to-face interpersonal skill,they can chat to several people at the same time through their cellphone but they can't perform well in a face-to-face meeting.Furthermore,the inappropriate use of mobile phones could be bothersome.For example,it is very inappropriate to hear a mobile phone ringing during a formal conversation,during a lesson,in a library or in a cinema.（弊）