1.便于和父母朋友联系。
2.增加乐趣，丰富学生的生活。
害处
1.分散注意力，不能集中精力学习。
2.花费高。
你的看法
……
注意：1.词数100词左右； 2.可适当增加细节，以使行文连贯；3.开头已给出，但不计入总词数。
Today, more and more students go to school with mobile phones. Many people say that it’s right to that. Firstly, it is easier for students to keep in touch with their parents and friends. Secondly, students are under too much pressure, and mobile phones make their lives colorful.