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IELTS Reading detail Practice

本文によると、メラトニンの主な目的は何ですか?

Question type: multiple choice · Difficulty: beginner

  1. A. (A) 脳の活動を増加させるため
  2. B. (B) 体が目覚めて alert に感じるのを助けるため
  3. C. (C) 体に眠る時間であることを知らせるため
  4. D. (D) 脳内で青い光を生成するため

Explanation Preview

Paragraph B explains the function of melatonin. It states that melatonin 'sends a signal to the body that it is time to rest.' This matches option C directly. Options A and B are the opposite of melatonin's function, and option D is incorrect as melatonin does not produce blue light.

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