Mobile phones are the main invention of modern technology.They are completely part of our daily lives If we look at our society,we can see that all kinds of people are using mobile phones.Maybe they have many advantages,but they also experience drawbacks.

　　The main advantage of mobile phones is that people can use them anytime and anywhere,so they can use one for an emergency.in addition,people can access the internet whenever they use the mobile phones,so business people can use tem at work to get information from internet more convenietly Moreover,it is very easy to send messages to your friends.Mobile phones can make people keep intimacy in spite of long distance.Mobile phones are turning the world into a small vilage where we can commmunicate with each other easily and simply.Finally,another point in favour of mobile phonesis that you can avoid disturbing anyone when he is sleeping orworking because in that case people often turn off their mobile phones.

　　On the other hand,there are some drawbacks,too.Firstly,the most important disadvantage is the unknown effects on health in case of over-use.Scientists found that mobile phones can cause brain cancer.if you talk for so many hours,you are going to have headacheand ear problems.Secondly,the mobile phone stimulate home for the high cost of communication.If you are in 3 membered family,you would spend a lot of money on mobile phone.Because tow to three of family have it, it cost about 150-200D in a month.Furthermore,the inappropriate use of mobile phones could be bothersome.for example,it is very imppropriate to here a mobile phone ringing during a formal conversation,during a lesson,in a libraryor in a cinema.Finally,mobile phones waste people too much time.An Amerian survey show that the teen-ager will spend average 2 hours to send messagesevery day.

　　In conclusion, there are some benefits and drawbacks to mobile phones.personally,i dont like mobile phonesvery much,but i need use them.In my opion, mobile phones are good only if you use them correctly and politely,as in this case,all technology is beneficial!