2. Word choice and sentence structure help create interesting stories, word choice helps because you can use any words that are similar to the word for example: you can use then but you can also use therefore. Having a large vocabulary means being able to have a vast variety of word choices to pick from.
So you can "read in between the lines" so to say, Teachers want you to re-read what you have read to develop a deeper understanding.
Answer: The purpose of an excerpt is to be a trailer for a book.
Explanation: A excerpt can be like a little sneak peak that prepares the reader for the whole story. An excerpt can also help the the reader understand and memorize the subject the author is writing about.