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Craft and StructureEasyMain purpose of an explanatory text

Craft and Structure practice question

A sourdough starter must be fed with flour and water every day. Skip one feeding and the yeast in it weakens; skip three and it may never recover. Bakers therefore treat a starter less like an ingredient than like a pet.

What is the main purpose of the text?

  1. A. To explain why bakers give a sourdough starter constant attention.Correct
  2. B. To argue that sourdough bread is too difficult for home bakers.
  3. C. To compare the nutritional needs of yeast and pets.
  4. D. To describe the steps for baking a loaf of sourdough bread.

Answer: A. To explain why bakers give a sourdough starter constant attention.

The text gives the daily-feeding requirement, the cost of skipping it, and 'therefore' the bakers' attitude. Its point is to explain that attention.

Why the other answers are wrong

B. To argue that sourdough bread is too difficult for home bakers.
The text never says sourdough is too hard for anyone; it only describes what a starter needs.
C. To compare the nutritional needs of yeast and pets.
'Like a pet' is a comparison of attitude, not a comparison of nutrition.
D. To describe the steps for baking a loaf of sourdough bread.
No baking steps are given — only the care of the starter.

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