Answer: Part A: angrily and pointedly, Part B: It shows that Mr. Auld feels strongly that Douglass should not learn to read.
Explanation: In this excerpt, specifically in the third paragraph Frederick Douglass describes how his teacher demonstrated a big opposition to his desire of learning how to read, that is what the word "warmly" expresses, it says that he warmly urged an argument against his learning to read, in that sentence "warmly" means with passion, angrily.
