详解
Choice A is the best answer because it most accurately describes the overall structure of the text. The narrator begins by explaining how Charlot carefully delivers Atlante’s letter to Rinaldo, and then relates that Rinaldo feels “transported with joy” after reading the letter. Therefore, the overall structure of the text is best described as a description of the delivery of a letter followed by the portrayal of a character’s happiness after reading the letter.
Choice B is incorrect because the text indicates that the letter has been written; there’s no explanation why another character hasn’t written one. In addition, the text’s description of Rinaldo “in a melancholy posture” suggests that he’s sad and thoughtful, not that he’s desperate to receive the letter. Choice C is incorrect. Although the text states that Charlot won’t toss the letter to Rinaldo because she doesn’t want it to fall, the text doesn’t refer to the contents of the letter. Instead, the text describes how happy Rinaldo feels after reading it. Choice D is incorrect. Although the text does describe Rinaldo’s reaction to the letter, the text doesn’t begin by discussing Atlante’s inspiration for writing the letter. Instead, the text begins by discussing the delivery of the letter.