Craft and StructureEasyMain purpose of a how-to explanation
Craft and Structure practice question
To test whether an egg is still fresh, place it in a bowl of water. A fresh egg sinks and lies flat; an older egg stands on end as the air pocket inside it grows; an egg that floats should be thrown away.
What is the main purpose of the text?
- A. To explain a simple method for judging an egg's freshness.Correct
- B. To argue that older eggs are unsafe to eat.
- C. To describe how air pockets form inside eggs.
- D. To compare the nutritional value of fresh and old eggs.
Answer: A. To explain a simple method for judging an egg's freshness.
The text gives a test and how to read its results. It is instruction, not argument.
Why the other answers are wrong
- B. To argue that older eggs are unsafe to eat.
- The text says only that a floating egg should be discarded; it doesn't argue about older eggs in general.
- C. To describe how air pockets form inside eggs.
- The air pocket is mentioned in passing to explain one result, not as the topic.
- D. To compare the nutritional value of fresh and old eggs.
- Nutrition never comes up.
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