Giao Vien 4
A - AN - ONE
Common Errors in English: A, An, One
Don't say: "I took one pen and started to write."
Say: "I took a pen and started to write."
1. Chúng ta dùng "one" không dùng "a, an" khi chúng ta muốn nhấn mạnh rằng chỉ một người/thứ... duy nhất, không có hai hoặc nhiều hơn.
VD: One of these eggs is rotten, but the others are OK.
I wanted to buy three CDs, but I didn't have enough money, so I bought only one.
I've only got one hour free.
We have only one child.
It was a one-storey building with big windows.
I invited three friends, but only one of them came.
One holiday a year is not enough for me.
2. Tất cả các trường hợp khác, khi không nhấn mạnh đến số lượng, chúng ta dùng "a/an":
VD: I had an omelet for breakfast.
I bought a new CD yesterday.
There's a visitor for you.
I can only carry two at a time.
I can't believe this company is paying 10,000 dollars a year for this tool.
My desk is not big enough for a desktop computer and a laptop.
Lưu ý:
1. Chúng ta dùng "a/an" trong các cụm thành ngữ như:
once a day, twice a year..., three times a month, (a) quarter of an hour...
They go there twice a week/month/year.
He cleans his car once a week.
2. Chúng ta có thể dùng "one" hoặc "a" với "hundred, thousand, million"; hoặc có thể dùng "one" thay vì "a" khi muốn nhấn mạnh con số:
There are a hundred centimetres in a metre. (or "one hundred centimetres")
I've got two brothers and a sister. (or "and one sister")
They have a daughter and five sons. (or "one daughter")
Over a hundred people were killed in the disaster. (or "Over one hudred")
Các bạn thử làm bài tập sau đây nhé!
Dùng "a, an" hoặc "one". Có vài câu có thể dùng "a" hoặc "one" đấy.
1. I looked in my mirror and (a/an/one) white van was coming up behind me.
2. I live on my own in (a/an/one) flat.
3. She's got (a/an/one) hundred euros.
4. We go there twice (a/an/one) month.
5. I went to the village with (a/an/one) friend.
6. I went to there with only (a/an/one) of them.
7. She gave me (a/an/one) burger, not two.
8. My cousin works at (a/an/one) university.
9. I've got (a/an/one) uncle and two aunts.
10. I want to buy (a/an/one) umbrella.
11. I want to buy only (a/an/one) of those umbrella.
12. She's (a/an/one) friend of my father's.
13. She is the only (a/an/one) person that makes me feel better.
14. (a/an/one) very trusting person. She is the type of person that would do anything for you. (a/an/one) person you would love to have as (a/an/one) friend. She is (a/an/one) person that loves to shop!
15. There's only room for (a/an/one) person.