How do you know when someone is in serious need of help with mental or emotional issues?

Which of these can an adverbial clause modify?

Can someone me answer this english question

What is the effect of narrator's word choice on the tone of this passage? the words "my heart shrank within itself" create a fearful tone. the words "better-omened" set a hopeful tone. the words "wounded his fellow" develop a remorseful tone. the words "struck harsh upon my ears" suggest an irritated tone.