1 . Castles(城堡)and temples wear away after hundreds of years, but the symbols and E-books came from the development of words on the stone often survive.    1     science and technology, and can be read online. Many people believe that regular books will be one day replaced by e-books.

Books and e-books share lots of similarities. They are both items created by great minds,    2     You can draw lines or highlight some details on books or e-books as notes. The notes can be kept for a long time.

    3    Firstly, books don’t have to be charged, while e-books need electricity if we want to read them. Meanwhile, spending too much time reading e-books may do harm to our eyes. Moreover, e-books don't share the same weight when held in the hand as regular books, nor do they give that sense of fulfillment that comes from finishing a thick book. However，e-book devices(设备)are easy to carry.    4    

A disadvantage of e-book devices is that people tend to get distracted(分心)when they’re using one, as many devices often have apps or games on them.    5    

Whichever you prefer, both books and e-books are just a way to help us gain knowledge and get to know other people 's experiences. They are both necessary, so it's too early to say one will disappear.