答案解析

[PASSAGE] "So far, we've discussed the swing era... But as the 1940s dawned, something fundamentally different began to emerge... This new sound was Bebop... In many ways, Bebop was a conscious *rejection* of Swing." The professor first introduces the characteristics of Swing to provide a background for understanding Bebop as a reaction against it. [WHY CORRECT] Option 2 is correct because the professor explicitly states that Bebop was a "conscious *rejection* of Swing." By detailing Swing's popularity and mass entertainment focus, they establish what Bebop musicians were reacting against, creating the necessary context. [TRAPS] Option 1 is wrong because the professor doesn't argue Swing was the most creative; rather, they present creative limitations as a reason for Bebop's emergence. Option 3 is wrong because the professor focuses on the differences and rejection, not on successful transitions between the styles. [TIP] When a question asks for the purpose of an introductory statement, listen for subsequent phrases that compare, contrast, or explicitly state a reaction to the initially introduced topic. This often indicates the introduction serves as a setup for the main point.

其他选项为何错误

• Option A (“To argue that it was the most creative period in jazz history.”) misreads the speaker’s purpose for the remark.
• Option C (“To give examples of musicians who successfully transitioned from Swing to Bebop.”) treats a rhetorical aside as a literal claim.
• Option D (“To explain why Swing music remains more popular than Bebop today.”) assigns an intent the context does not support.

语境中的关键用语

Pay attention to the precise wording used to discuss Jazz History. In TOEFL function questions, transitions and qualifiers carry the meaning that separates the correct answer from close distractors.

学习要点

Listen for the intent behind the wording, especially after signal phrases.