Our lives have been changed greatly by science and technology. So mobile phones are widely used in our daily life. We even can’t live without them. For example，we chat on the Internet with mobile phones. We take photos in some places with mobile phones. We do our homework with them too！ However，mobile phones take away lots of people’s happiness，health and eyesight. We can see a number of “mobile phone fans” almost everywhere. As a primary school student，how should we use mobile phones properly？
　　I strongly believe，we shouldn’t spend too much time playing games，as they can cause poor eyesight. And we have so much homework and exercise to do. If we play with mobile phones all the time，they may badly effect on our studies. Last but not the least，mobile phones can’t take place of family. Talking to each other face to face is better than chatting on the phone.
　　Great changes have also taken place in communication due to the development of science and technology. But mobile phones aren’t everything. We are people，We are not “mobile phones’ prisoners”！
　　（指導老师：朱红娣）