As we all know ,the world develops more quicker than before. ,Many students use the mobile phone in the school .Now ,let me tell you the advantage and the disadvantage .

Many parent thinks use the mobile phone is bad for students .It will must affect students's study.Most students will play the games in class .And they will send the information to their friends .That's too bad to them to study .

But ,using the mobile phone also have good things to students ,They can call their friends when they are not in school .It will makes your friendship more close . And ,if your parents can't find you ,they can call you at once . From .Joozone.com.

In a word ,using the mobile phone have the good things and the bad things .The important is if you cancontral yourself .

作文地带参考翻译：

众所周知，世界的发展越来越快。许多在校学生在使用手机。我来说说使用手机的利弊。

许多家长认为使用手机对学生不好。使用手机必然会影响学生的学习。许多学生会在课堂上玩游戏，发短信，这对于他们的学习非常不好。来自作文地带

但是，使用手机对学生也有一些好处，当他们不再学校的时候他们可以给朋友打电话，这样能够加深他们的友谊。另外，如果你的父母找不到你，他们可以立即给你打电话。

总之，使用手机有利有弊。关键是你能不能控制好自己。