3.参考词汇 :集中(注意力) concentrate on
作者能较熟练、灵活地使用词汇,建议要多使用学术词汇;从句比例偏少,简单句稍微偏多了;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 campu.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.