Craft and StructureEasyMain purpose of an explanation of shivering
Craft and Structure practice question
Why do we shiver? Shivering is the body's way of making heat: rapid contractions of the muscles burn energy, and that energy warms the blood. The process is inefficient, which is why sustained shivering leaves a person exhausted.
What is the main purpose of the text?
- A. To explain what shivering does for the body and why it is tiring.Correct
- B. To argue that shivering should be avoided.
- C. To describe how muscles contract.
- D. To compare shivering with sweating.
Answer: A. To explain what shivering does for the body and why it is tiring.
The text answers its own question — shivering makes heat — and adds why it exhausts us.
Why the other answers are wrong
- B. To argue that shivering should be avoided.
- The text treats shivering as the body's mechanism, not as something to avoid.
- C. To describe how muscles contract.
- Contraction is mentioned as the means, not explained in itself.
- D. To compare shivering with sweating.
- Sweating isn't mentioned.
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