A ‣ What are countable and uncountable nouns?
COUNTABLE You can count them: four apples, two shoes.
UNCOUNTABLE You can’t count it. [NOT three luggages]
Can I have three apples and some sugar, please?
Are these shoes yours? Is this luggage yours?
B ‣ Everyday uncountable nouns
This furniture is modern.
I’ll give you some advice about your future.
He can give some useful information about Bangkok.
There is some bad news today.
It’s terrible weather today.
Accommodation here is expensive.
Air travel is faster than rail travel.
C ‣ Food 
A lot of uncountable nouns are kinds of food and drink.

Note: When we want to say how much we want, we say two loaves of bread, three litres of milk, a kilo of rice.
Tip
When you learn a new noun, write it down in a phrase which shows if it is countable or uncountable.