Tham khảo tài liệu 'grammar in use new part 23', ngoại ngữ, ngữ pháp tiếng anh phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Unit 72 A an and the Study this example 7had a sandwich and an apple for lunch. F Joe says a sandwich an apple because this L is the first time he talks about them. Joe now says the sandwich the apple because Karen knows which sandwich and which apple he means - the sandwich and the apple that he had for lunch. Compare a and the in these examples A man and a woman were sitting opposite me. The man was American but I think the woman was British. When we were on holiday we stayed at a hotel. Sometimes we ate at the hotel and sometimes we went to a restaurant. D We use the when we are thinking of a specific thing. Compare a an and the Tim sat down on a chair perhaps one of many chairs in the room Tim sat down on the chair nearest the door a specific chair Paula is looking for a job. not a specific job Did Paula get the job she applied for a specific job Have you got a car nor a specific car I cleaned the car yesterday. my car We use the when it is clear in the situation which thing or person we mean. For example in a room we talk about the light the floor I the ceiling I the door the carpet etc. Can you turn off the light please - the light in this room I took a taxi to the station. the station in that town in a shop Pd like to speak to the manager please. the manager of this shop In the same way we say go to the bank the post office I have to go to the bank and then I m going to the post office. The speaker is usually thinking of a specific bank or post office. We also say go to the doctor the dentist Caroline isn t very well. She s gone to the doctor. her usual doctor I don t like going to the dentist. Compare the and a I have to go to the bank today. Is there a bank near here I don t like going to the dentist. My sister is a dentist. We say once a week three times a day I a kilo etc. How often do you go to the cinema About once a month. How much are those potatoes a kilo. Helen works eight hours a day six days a week. 144 A an Unit 71 The - Units 73-78 .