双人英语辩论

写多少字啊，几分钟啊？挑一个还是俩都写啊？

主题：中学生使用手机的利弊学生A: As every body knows, mobiles are playing a important part in our daily life nowadays.First, mobiles make it convinent for people to keep in touch with each other whevere they are.Especially when they have something important.It reduces the cost for people dont have to travel a long way to get to know the things in personSecond,we can send messages by mobiles with little money,just 0.01 yuan for each short message.Third, we can also play games or take photoes or listen to music on the mobiles,late we do many things on them with the development of technology.学生B：I don't really agree with you.Mobile phones also have many disadvatages.The radioactivites may do harm to our health.Sometimes the rings may affect others in public or at meetings.Also, it is not good for students if they bring their phone to school because the student won't pay attention to what the teachers are trying to say. Theres's still many problems left.