|ONE AS AN EXAMPLE OF ALL|
Use a for singular or plural count nouns, and no marker for noncount nouns.
⇒ To speak about one as an example of all any one–unspecific
→ A restaurant / restaurants should be kept clean.
→ Food should be artfully prepared. noncount
⇒ To speak about an item that is not yet known to both the speaker and the listener(s) a particular one–specific
→ I know a good restaurant near us.
→ They have (some) delicious soup.
|A GROUPING WITH SHARED CHARACTERISTICS|
Use the for singular count and noncount nouns when speaking in general about any / all.
⇒ To speak about all members within a class
→ The onion is cultivated around the world.
→ Fructose is a fruit sugar. noncount
|SECOND AND LATER MENTION|
⇒ To speak about an item that is known to the speaker and the listener(s):
→ The restaurant is near by.
→ The soup today is clam chowder.
cultivate (v.) — grow
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