Answer:
1. The word "unconsciously" is adverb.
2. The word "great" is adjective.
3. The word "save" is verb.
4. The word "he" is pronoun.
Explanation:
An adverb modifies adjectives, verbs, clauses, determiners, etc. In the sentence, we see that the word "unconsciously" is actually modifying the verb, "shape". It answers the question, "how are our characters shaped?"
Adjective modifies or qualifies nouns or pronouns. In the sentence, "great" qualifies the noun "doctor".
Verb is an action word. The word "save" in the sentence depicts action.
Pronouns are words used instead of nouns. "he" is an example of a pronoun.
The above answers are correct.