Final answer:
The word 'fresh' reveals Cassius's optimism in spite of the dark omens and his determination to face challenges.
Step-by-step explanation:
The use of the word fresh affects the meaning of the passage by revealing Cassius's sense of optimism in spite of the dark omens. It shows that Cassius is still determined and resolute, ready to face any dangers. Despite the presence of ravens, crows, and kites symbolizing doom, Cassius remains fresh in spirit and is resolved to confront the challenges.
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