Set 9: Words in Context (Advanced)
Explanation
PASSAGE
Unlike mammals that maintain a constant body temperature, reptiles are cold-blooded and rely on external heat sources to ______ their body heat.
Which choice completes the text with the most logical and precise word or phrase?
Detailed Answer Explanation
This question asks for the meaning of a word as used in this specific context. Animals need to control or adjust their body temperature. 'Regulate' means to control or maintain the rate or speed of a machine or process. Words can have multiple meanings, and context determines which meaning applies. Read the surrounding sentences carefully. Substitute each answer choice to see which maintains the intended meaning and fits the context. Many vocabulary words have multiple dictionary definitions, but only one fits the context. Use the surrounding sentences as clues. Try substituting each answer choice to see which one preserves the author's intended meaning without changing the sentence's message.
Key Evidence:
• "maintain ... temperature"
• "rely on external heat"
Why others are wrong: C (Ignore implies paying no attention to it.), A (Dissipate means to scatter or lose heat, not manage it.), B (Freeze is the opposite of using heat sources.).
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