at 的用法

大家好，欢迎来到IT知识分享网。

1 place or position

At is used to talk about the position of something, or about the place where something happens.

• There was a staircase at the end of the hallway.
• He said I was to be at a certain place in the Kaiserstrasse at 3 p.m.

You often use at to mean ‘next to’ or ‘beside’.

• The boat was anchored at Westminster Bridge.
• Captain Imire stopped me at the door.

You say that someone sites at a table or desk, for example when they are eating or writing.

• She was sitting at the dressing table.
• I was sitting at my desk reading.

If you want to mention the building where something exists or where something happens, you usually use at.

• …the exhibition of David Jone’s work at the Tate Gallery.
• Dr Campbell told of his examination of Meehan at Ayr Police Station on July 15th.
• We had dinner at a restaurant in Attleborough.
• He lived at 14 Burnbank Gardens, Glasgow.

In British English, you say that someone is at school or at university.

• He had done some acting at school.
• After a year at university, Benn joined the RAF.
• He was just starting his final year at University College, London.

Speakers of American English usually say that someone is in school.

• They had met in high school.

You say that someone stops at a particular place during a journey.

• We pulled in for lunch at a roadhouse.
• We docked at Panama.

You say that something happens at a meeting, ceremony, or party.

• He made his remarks at a press conference.
• The whole village were out at a funeral.
• Teenagers often drink socially at parties, clubs and discos.
• He had a fight at a high school dance.

2 time

At is also used to say when something happens.

You use at when you are mentioning a precise time.

• At 2.30 a.m. he returned.
• It is scheduled to be shown at 9pm on Easter Sunday.

If you want to know the precise time when something happened or will happen, you can say ‘At what time…?’ but people usually say ‘What time…?’ or ‘When…?’

• What time does the boat leave?
• ‘We are having a party on the beach.’ – ‘What time?’ – ‘At nine.’
• When is the press conference?
• ‘I’ll be there this afternoon.’ – ‘When?’

You can say that something happened or will happen ‘at dawn’, ‘at dusk’, or ‘at night’.

• She had come in at dawn.
• It was then o’clock at night.

However, you say that something happened or will happen ‘in the morning’, ‘in the afternoon’, or ‘in the evening’.

If something happens at a meal time, it happens while the meal is being eaten.

• At dinner we had another in our series of conversations.
• He told her at lunch that he couldn’t take her to the game tomorrow.

You say that something happens at Christmas or at Easter.

• She sends a card at Christmas.
• What will happen to me at Easter?

However, you say that something happens on a particular day during Christmas or Easter.

• I expect they even play cricket on Christmas Day.
• On Easter Monday I headed for a hotel called the Europejski.

In British English, at is used with weekend.

• Relatives are relied on to provide food at the weekend and during holidays.

American English speakers usually use on or over with weekend.

• I had a class on the weekend.
• The Museum threw a party over the weekend.