In my opinion，the Internet is helpful rather than harmful as someone else thinks. As is known to all，the Internet is playing a more and more important part in our daily life. On the Internet，we can read news at home and from abroad and get as much information as we can. We can send e - mails or make phone calls to our family as well as to our friends. We can also attend the net school，read many books and even teach ourselves English. We can also enjoy music，watch matches and play computer games on the Internet. We can even do shopping on line. Besides，we can improve our ability to operate the computer.
But we should not be given to the Internet，or we’ll get our life and study destroyed. Besides，we should keep off the harmful websites. Anyhow，this doesn’t prevent the Internet becoming our friend. We can’t throw away the apple because of the core，can we？
本题是写一篇给定材料的书面表达，写作的话题为中学生是否可以上网，写作的内容包括个人对上网的观点，上网所带来的益处，包括可以学习，通讯，听音乐和看电影，掌握电脑技能等，同时提出上网应注意的事项，在写作时，应注意符合题意，同时注意语言的准确性和连贯性。