Here is another example of a simple error of omission that could have been caught if the student had read the essay aloud or given it to a friend to read. The word "of" should be between "calculation" and "the." That one small error makes the entire sentence awkward and confusing. If the instructor has to reread the sentence to try to understand its meaning, the flow of the essay is interrupted. If this happens often enough in the essay, it gives an overall bad impression on what otherwise might be a very good paper in terms of research.
Only a bleach-white skeleton remains, silently mocking him in the murky darkness. Santiago realizes he’s still unlucky. REALLY unlucky. (Duh!) He calls the sharks “dream killers”. Which isn’t really all that fair. I mean, the sharks were just doing their job and the marlin… Jesus, don’t even get me started on the marlin! It was just hanging out one day, minding it’s own business, maybe thinking about ways it could be a better provider for it’s family and WHAM! Harpoon in the brain. Who’s the “dream killer” now, f*ckface? The hypocrisy is pretty much boundless at this point.