Verb are action words so therefore do u see any action words in the sentence.
In the 19th century, Realism in France is often mistaken as literary movement because they felt that it laid too much truth specially on external reality. Meanwhile, America needed a type of literature that would explain what was happening to their society. American writers then turned to what is termed as modernism. The influence of realism and naturalismin the 19th century and their truthful illustration of American life and people was shown in post World War I modernism.
A predicate is the part of the sentence that tells what the subject is all about. A predicate can either be simple or complete. A simple predicate is the main verb used in the sentence; whereas, a complete predicate includes the main verb and its complements. In the given sentence above, the simple predicate is the verb "teach".