Glass: material or drinking container

The idea

Use uncountable glass for the material: made of glass. Use a glass and two glasses for containers; a glass of water can name a serving.

Examples

• A glass of juice is beside the book.
• The window is made of glass.
• We need two glasses for the guests.
• He filled a glass with juice.
• This bottle is made of glass.
• There is a glass of water on the table.

Watch out

The plural glasses can also mean eyewear; the context distinguishes that meaning from drink containers.

Try it yourself

1. Choose the uncountable material. The window is made of ___. (glass / a glass)

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   glass

   Uncountable glass names the material.

2. Choose the plural for two drinking containers. We need two ___ for the guests to drink from. (glasses / glass)

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   glasses

   Glasses counts the drink containers.

3. Choose the preposition before the drink. There is a glass ___ water on the table. (of / from)

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   of

   Of introduces the drink in the serving.

Use it today

Describe something made of glass and ask for a glass of a drink.