例文

Nowadays many middle school students carry mobile phones during school hours. Is it necessary? We had a big discussion.

Most students think mobile phones can help them keep in touch with their friends and family. Also carrying phones is a way to be cool.

But most teachers think differently. They say using mobile phones during school hours often causes lots of problems. Firstly, students are so young that they don’t have self-control. Secondly, they waste too much time playing games and sending text messages on the phone, that will influence their study. Thirdly, carrying phones to school may make students vie with each other.

In my opinion, students shouldn’t carry phones during school hours because It has more disadvantages than advantages. Students should learn to use mobile phones at the right time.