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

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.