A and THE - a bottle / some water (countable/uncountable 1)

Question 1

• A noun can be countable or uncountable.
• You can use one/two/three (etc.) + countable nouns (you can count them)
• Countable nouns can be singular (= one) or plural (= two or more):
• You CAN’T use the SINGULAR (car/bottle/key etc.) ALONE. You NEED a/an:

Answer 1

Countable nouns
…(a) car, (a)man, (a) bottle, (a) house, (a) key, (an) idea, (an) accident

…one bottle, two bottles, three men, four houses

Singular
…a car, the car, my car etc.

Plural
…cars, two cars, the cars, some cars, many cars etc.
_________

…We can’t get into the house without A key. (NOT without key)

Question 2

Uncountable nouns

• You CAN’T say one/two/three (etc.) + these things:
• Uncountable nouns have ONLY ONE form:
• You CAN’T use a/an + uncountable nouns:
• But you can say A PIECE OF … / A BOTTLE OF … etc. + uncountable noun:

Answer 2

…For example: water, air, rice, salt, plastic, money, music, tennis

… CAN’T SAY/IT IS WRONG (one water, two musics)

…money, the money, my money, some money, much money etc.
…I’ve got some money.
…There isn’t much money in the box.
…Money isn’t everything

… CAN’T SAY/IT IS WRONG (a water, a music, a money)

… a bottle of water/a carton of milk/a bar of chocolate/a piece of cheese/a bottle of perfume/a piece of music/a bowl of rice/a cup of coffee/a game of tennis