a ... = one thing or person:
O Rachel works in a bank. (not in bank)
O Can I ask a question? (not ask question)
O I don't have a job at the moment.
O There's a woman at the bus stop.
an (not a) before a/e/i/o/u:
O Do you want an apple or a banana?
O I'm going to buy a hat and an umbrella.
O There was an interesting programme on TV last night.
also an hour (h is not pronounced: an hour)
but a university (pronounced yuniversity)
a European country (pronounced yuropean)
another (= an + other) is one word:
O Can I have another cup of coffee?
We use a/an ...when we say what a thing or a person is. For example:
O The sun is a star.
O Football is a game.
O Dallas is a city in Texas.
O A mouse is an animal. It's a small animal.
O Joe is a very nice person.
We use a/an...for jobs etc. :
- A: What's your job?
B: I'm a dentist. (not I'm dentist)
- What does Mark do? He's an engineer.
- Would you like to be a teacher?
- Picasso was a famous painter.
- Beethoven was a composer.
- Are you a student?
Make sentences use a or an:
1. an old book
2. a window
3. a horse
4. an airport
5. a new airport
6. an organisation
7. an university
8. a hour
9. an economic problem
What are these things?
1. A duck is a bird.
2. A carrot is a vegetable.
3. Tennis is a game.
4. A hammer is a tool.
5. Everest is a mountain.
6. Saturn is a planet.
7. A banana is a fruit.
8. The Amazon is a river.
9. A rose is a flower.
10. A trumpet is a musical instrument.
What are their jobs? Make sentences Use these words:
1. She's a dentist.
2. He's a shop assistant.
3. She's an architect.
4. He's a taxi driver.
5. He's an electrician.
6. She's a photographer.
7. She's a nurse.
8 I'm a programmer.
Make sentences Use a/an where necessary:
1. I want to ask you a question.
2. Tom never wears a hat.
3. I can't ride a bike.
4. My brother is an artist.
5. Rebecca works in a bookshop.
6. Jane wants to learn a foreign language.
7. Mike lives in an old house.
8. This evening I'm going to a party.