Persuasive, Informative, Entertaining and expressive passages.
* Inform: the reader about some fact or event; newspaper articles pften fall into this category.
* Persuade the reader to a particular viewpoint; this sort of writing is often called persuasive writing.
* Entertain the reader
* Express felings: such as poetry.
One of the reader's most inportant jobs is figuring out this purpose(author's intent)