One possible version:

     Some people think students shouldn't spend much time in the Internet bar. First, being on the net a lot will

waste time which should be spent on the study and rest. Second, students need enough outdoor sports while

being online will do harm to their health, especially to their eyesight. Third, some contents online are not suitable

for the students.

     But other people think being in the internet bar is useful to students. The reasons mainly lie in three facts.

First, it can enlarge their knowledge and they can leam a lot that can't be leamed in class. Second, being online

is a kind of relaxation, and it can actually enrich students' life out of class. Above all, students can make a lot

of true friends on-line, from whom they can get advice on many things.