我们可以通过网络学习许多课外的知识，还可以轻松购物这给我们的生活带来了很大便利相反如果我们利用网络

Now many of my classmates like to surf the Internet in their free time.I think Internet can bring us both advantages and disadvantages.For example,if I have some trouble studying,I can surf the internet to find more helpful information.And I can make more friends on it.Some of my classmates say they feel happy when they talk with more friends with many similar hobbies.However,Internet can make some problems at the same time.If you spend too much time on it ,you will becaome lazy and can't put your heart on study.