A paraphrase is simply a rewriting of a passage in your own words. A summary, on the other hand, contains only the main idea and the supporting ideas of a passage.
A summary is used to describe a story and a paragraph is part of your writing style.
Explanation:
Summaries are ways to tell you what happened during the story without giving spoilers and paragraphs are just the proper way of writing. You may use paragraphs when writing a summary for a book.
