The correct option is
C. uses his hands and arms as a sign.
Explanation of the Correct Answer
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Understanding the Underlined Phrase: The phrase "the way he gesticulates" refers to how the politician uses his hands and arms while speaking. "Gesticulate" specifically means to use gestures, especially dramatic ones, to emphasize or convey meaning during communication.
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Analyzing Option C:
- Option C states "uses his hands and arms as a sign." This directly aligns with the meaning of "gesticulates." It captures the essence of using hand movements to express ideas or emotions, which is exactly what the original sentence describes.
Why the Other Options Are Incorrect
- Option A: "shows anxiety when making a serious point"
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This option suggests that the politician is anxious, which is not implied in the original sentence. "Gesticulating" does not inherently mean showing anxiety; it can be a natural part of expressive communication. Therefore, this option misinterprets the meaning of gesticulating.
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Option B: "breaks down when talking seriously"
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This option implies a negative emotional state or a failure to communicate effectively, which is not what "gesticulates" conveys. The original sentence does not suggest that the politician is breaking down; rather, it highlights a specific behavior (gesticulating) that is part of his communication style.
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Option D: "bows his head in humility to the crowd"
- This option describes a specific action (bowing) that conveys humility, which is unrelated to gesticulating. Bowing is a gesture of respect or submission, while gesticulating is about using hand movements to enhance verbal communication. Thus, this option does not capture the meaning of the original phrase.
Summary of Key Points
- Gesticulate means to use hand and arm movements to express ideas or emotions.
- The correct answer (C) accurately reflects the meaning of gesticulating.
- Options A, B, and D misinterpret or do not relate to the concept of gesticulating.
- Understanding the context and specific meanings of words is crucial for selecting the correct answer in vocabulary questions.
Revision Summary
- "Gesticulate" means to use gestures, especially with hands and arms.
- The correct answer (C) aligns directly with the meaning of gesticulating.
- Incorrect options misinterpret the meaning or context of the original phrase.
- Always consider the specific definitions of words when answering vocabulary questions.