For instance, it is very prevalent today for people to read books in the internet compared with decades ago.
This sentence does not convey your idea properly. What you must focus on is that internet acts to replace books. This is what I suggest;For instance, the reading habit of people has been greately diverted from reading books to surfing the internet in the recent past.
It is believed that the network development will continually impact people's reading habit, as will be now discussed.
What is your opinion? Your prompt asks you that and you better state your own opinion here. This sentence sounds a bit vague and I wish if you said it more direct;In my opinion, people will have very low preference for books in their physical form in the future, and would depend on the internet for their references to acquire knowledge.
Firstly, it is
notno doubt that people can assessaccess the books they like online in a convenient mannermore conveniently .