Information and IdeasMediumMain idea distinguishing two meanings
Information and Ideas practice question
A 'blue moon' has two meanings, and neither involves colour. In the older sense it is the third full moon in a season that has four; in the newer, more common sense it is the second full moon within a single calendar month. The newer meaning began as a magazine's misreading of the older one, and it stuck.
Which choice best states the main idea of the text?
- A. 'Blue moon' has two calendar meanings, the more familiar of which arose from a mistake.Correct
- B. A blue moon is a moon that appears blue.
- C. Blue moons occur only once a century.
- D. The magazine's definition was the original one.
Answer: A. 'Blue moon' has two calendar meanings, the more familiar of which arose from a mistake.
Two meanings, both about calendars, with the popular one born of a misreading — choice A covers it.
Why the other answers are wrong
- B. A blue moon is a moon that appears blue.
- The first sentence says neither meaning involves colour.
- C. Blue moons occur only once a century.
- Frequency isn't discussed.
- D. The magazine's definition was the original one.
- The text says the magazine's sense was a misreading of the OLDER one.
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