In paragraph 2, why does the author compare the physiological changes subjects experienced when they simply opened their mouths or breathed deeply with those that occurred during y... In paragraph 2, why does the author compare the physiological changes subjects experienced when they simply opened their mouths or breathed deeply with those that occurred during yawning?
Understand the Problem
The question is asking about the purpose of a comparison made in a reading passage regarding physiological changes related to yawning. It is focused on understanding the author's intent in relation to different theories of yawning.
Answer
To argue against the hypothesis that yawning raises alertness or physiological activity.
The author compares the physiological changes when subjects opened their mouths or breathed deeply with those during yawning to argue against the hypothesis that yawning significantly affects alertness or raises physiological activity.
Answer for screen readers
The author compares the physiological changes when subjects opened their mouths or breathed deeply with those during yawning to argue against the hypothesis that yawning significantly affects alertness or raises physiological activity.
More Information
The comparison highlights that similar physiological changes do not support the idea that yawning has a unique or significant effect on alertness.
Tips
A common mistake is assuming that any physiological change equates to increased alertness or activity without considering context.
Sources
- 托福TPO/Official 18 Passage 2阅读原文In paragraph 2, why does ... - liuxue.koolearn.com
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