How do I concentrate on a book?

I am 14 years old and this year I moved to a Catholic school. So the summer reading list they gave me for sophomore year includes: The Best Short Stories of Edgar Allen Poe, Pudd'nhead Wilson, and Surprised By Truth. I have absolute no interest in these books at all since I don't typically like classical novels or short stories because of the language they're using. Can anyone give me an advice on how to concentrate on reading these books because it is really hard to focus. Thank you very much!