Nowadays, technology is developing at a high speed.It has a big influence on a

Nowadays, technology is developing at a high speed.It has a big influence on almost every aspect of our daily life，for example，books that we have to read every day.Besides books in the traditional sense, we have e-books now.And ever since they were invented, e-books have become very popular among students.Some students are very much dependent on e-books.They can read textbooks, novels and other kinds of articles with an e-book.Hence, many students say e-books may replace paper books one day.However，experts  tell us that this saying has  misled  many students.E-books do have many advantages, but they also have disadvantages.They may do harm to our health.More students may become short-sighted.Therefore，we should take action to solve this problem soon.