增加：在缺词处加一个漏字符号（∧），并在此符号下面写出该加的词。

删除：把多余的词用斜线（ \ ）划掉。

修改：在错的词下划一横线，并在该词下面写出修改后的词。

注意：1).每处错误及其修改均仅限一词；

2).只允许修改10处，多者（从第11处起）不计分。

    Zhou Yan is the Senior Three student. Last week, he goes to see a doctor because of his arms and fingers hurt. The doctor told him the fact that had a “mobile phone disease”. Zhou sent messages for his friends with his mobile phone all the time, even in bed. Zhou started to do badly in all the exam because he spent so many time on his mobile phone. He didn't stop use the mobile phone until his arms hurt. Yang Ling, which is an expert from a health center, said students should try to use their mobile phones less, especial at school.

读图文资料，完成下列各题。