Final answer:
H.G. Wells uses tense dialogue and a vivid description of a chaotic scene to create a tone of imminent danger and alarm in The War of the Worlds, effectively conveying the character's fear and confusion.
Step-by-step explanation:
H.G. Wells uses tense dialogue to create an aesthetic impact in the excerpt from The War of the Worlds. The urgency in the voices, such as Stent's commanding shouts to "Keep back!" combined with the rushed, informal diction of the boy who expresses his fear and intent to return home, contributes to a tone of imminent danger and alarm. The chaotic scene with a jostling crowd further heightens the tension, creating a vivid image in the reader's mind. This use of dialogue and description effectively conveys the escalating fear and confusion as the character and the crowd encounter something beyond their understanding.