This picture shows us that the son who takes schoolbag to go to school, but before he going out, he asks his father that is “why am I going to school if my phone already knows everything?” At present, maybe most children will ask the similar question. Of course, cell-phones are in a popular style, cell-phone become the most part of those who at the age of ten to sixty, cell-phone become the most part of our life. We can imagine that if there isn’t cell-phone, what will be like of our life. As far as I am concerned, taking cell-phone to small is harmful to our life. It may bring myopic eyes and some other bad problems. As for me, No Cell-phone Class is important to our study, of course, we are in the part of No Cell-phone Class. 本文来源：https://www.wddqw.com/doc/1a2801bfcaaedd3382c4d389.html