Writing prompt: Will E-book Be Necessary in the Future?

Student essay:
At the age of rapid development of science and technology ,various kinds of new technology have sprung up,including e-book. It is widely used in the word. Almost mobile phones are equipped with this function. But this leads to a problem:Is it beneficial to us?
As the saying goes:Every coin has two sides.On one hand, e-book makes our life easier.First,we just need to download the information into the mobile phone which is portable. We don't need to carry a thick book as before. Second, making paper needs amount of trees while using e-book saves natural resources. At the same time, it has large capability, we can store useful things in it in case of need.
On the other hand, e-book does harm for some teenagers. As every knows that some teenagers have preference for novels. No matter where they are or what they do, they are always reading novels. This bad behavior will affect their study and let them pay less attention on other things. What's more, it will has side effect on their eyes because of the radiation from the mobile phone.
From my point of view, although e-book becomes more crucial in our daily life, we should use it correctly, not excessively. After all, only the body is our own health which is the most valuable asset!

Corrected essay:
In the age of rapid development of science and technology, various kinds of new technology have sprung up, including e-books. They are widely used in the world. Almost all mobile phones are equipped with this function. But this leads to a problem. Is it beneficial to us?
As the saying goes, every coin has two sides. On one hand, e-books make our life easier. First, we just need to download the information onto the mobile phone, which is portable. We don't need to carry a thick book as before. Second, making paper needs a large amount of trees while using e-books saves natural resources. At the same time, it has a large capacity, so we can store useful things in it in case of need.
On the other hand, e-books do harm to some teenagers. As everyone knows, some teenagers have a preference for novels. No matter where they are or what they do, they are always reading novels. This bad behavior will affect their study and let them pay less attention to other things. What's more, it will have side effects on their eyes because of the radiation from the mobile phone.
From my point of view, although e-books become more crucial in our daily life, we should use them correctly, not excessively. After all, only our body and health are the most valuable assets!