3.参考词汇 :集中(注意力) concentrate on
文中词汇表达比较多样,能多用学术词汇就更好了;从句使用量稍显不足;行文稍显不流畅,应增加文中衔接词的使用。
Now mobile phone s are more and more popular in many campus.In our class most of my class have their own mobile phone .They think they will be modern if they have phone ,and they also can contact white their friend and family expediently.So that they can spend a happy school time in their life. But in the same time ,phone have advantages ,some students take their phone to the classroom,and now in our class ,we often hear the rang of the phone ,it destroyed the classroom discipline.Few classmate use mobile phone text messaging now and again. They lose their time. I think class is the place where we study in,student should not use phone in classroom.The teacher need criticize the students who break the rule and commend the students who did it well.