Should you use the title to help you determine the most important sentences in a paragraph

Hillenbrand writes, "as louie blazed through college, far away, history was turning" (p. 43). why does the author interrupt louie's narrative with information about japan and germany?

"dogs make wonderful pets because they us stay happy and healthy"the topic sentence is "dogs make wonderful pets" i need writing a sentence that is unrelated to the topic and can be eliminated.

What language uses emotionally words