at
- prep.在(某时间或时刻);在(学习或工作地点);在(某处);在…岁时;向;以，达;处于最佳（或最差等）状态;在…方面;以…的方式;从事于，忙于;因为，由于;应…（而）
- abbr.(= astatine ) (= Air Transport )
atprep.
在（某处）
used to say where sth/sb is or where sth happens
at the corner of the street
在街角
We changed at Crewe.
我们在克鲁换的车。
They arrived late at the airport.
他们晚到了机场。
At the roundabout take the third exit.
在环岛处走第三个出口。
I'll be at home all morning.
我一上午都在家。
She's at Tom's (= at Tom's house) .
她在汤姆家中。
I met her at the hospital.
我在医院遇见了她。
How many people were there at the concert?
音乐会上有多少人？
在（学习或工作地点）
used to say where sb works or studies
He's been at the bank longer than anyone else.
他在银行工作的时间比任何人都长。
She's at Yale (= Yale University) .
她在耶鲁大学。
在（某时间或时刻）
used to say when sth happens
We left at 2 o'clock.
我们在两点钟离开的。
at the end of the week
周末
We woke at dawn.
我们在黎明醒来。
I didn't know at the time of writing (= when I wrote) .
我写的时候并不知道。
At night you can see the stars.
夜晚可以看见星星。
What are you doing at the weekend?
你打算周末干什么？
在…岁时
used to state the age at which sb does sth
She got married at 25.
她25岁结的婚。
He left school at the age of 16.
他16岁便离开学校。
向；朝
in the direction of or towards sb/sth
What are you looking at?
你在看什么？
He pointed a gun at her.
他把枪口对着她。
Somebody threw paint at the prime minister.
有人朝首相扔油漆。
（用于动词后，涉及未做成或未做完的事）
used after a verb to show that sb tries to do sth, or partly does sth, but does not succeed or complete it
He clutched wildly at the rope as he fell.
他坠落时拼命想抓住绳子。
She nibbled at a sandwich (= ate only small bits of it) .
她一小口一小口地吃三明治。
在…远；从相隔…远的地方
used to state the distance away from sth
I held it at arm's length.
我伸直胳膊提着它。
Can you read a car number plate at fifty metres?
在五十米远处你能看清汽车牌吗？
处于…状态
used to show the situation sb/sth is in, what sb is doing or what is happening
The country is now at war.
这个国家正在打仗。
I felt at a disadvantage.
我觉得处于不利地位。
I think Mr Harris is at lunch.
我想哈里斯先生正在吃午饭。
（用于速度、比率等）以，达
used to show a rate, speed, etc.
He was driving at 70 mph.
他以每小时70英里的速度驾车行驶。
The noise came at two-minute intervals (= once every two minutes) .
每两分钟传来一次闹声。
处于最佳（或最差等）状态；在全盛（或谷底等）时期
used to say that sb/sth is as good, bad, etc. as they can be
This was Henman at his best.
这是亨曼的最佳表现。
The garden's at its most beautiful in June.
六月的花园最美丽。
（与形容词连用，表示状况）在…方面
used with adjectives to show how well sb does sth
I'm good at French.
我的法语很好。
She's hopeless at managing people.
她对人事管理一窍不通。
（与形容词连用）因为，由于，对…
used with adjectives to show the cause of sth
They were impatient at the delay.
他们对拖延不耐烦了。
She was delighted at the result.
对这个结果她感到高兴。
应…（而）；响应；回答
in response to sth
They attended the dinner at the chairman's invitation.
他们应董事长之邀出席了宴会。
（提供电话号码时用）
used when giving a telephone number
You can reach me at 637-2335, extension 354.
你可以打637-2335这个电话号码，转分机354，与我联系。
（用于电子邮箱地址中的符号 @）
the symbol (@) used in email addresses
used when you are giving an extra piece of information
他终于设法买了一辆小轿车——而且还挺不错的。
He managed to buy a car after all─and a nice one at that.
to be doing sth, especially sth bad
瞧瞧所有的那些涂鸦——又是那些孩子干的好事。
Look at all that graffiti─those kids have been at it again.
a place or an activity that is very popular or fashionable
从等待入场的人群来看，这好像是个盛大活动。
Judging by the crowds waiting to get in, this seems to be where it's at.
at
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In addition to the uses shown below, at is used after some verbs, nouns, and adjectives to introduce extra information. At is also used in phrasal verbs such as ‘keep on at’ and ‘play at’.
除下列用法外，at用于某些动词、名词、形容词后以引出附加信息。at还可用于keep on at, play at等短语动词中。
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2
PREP 在（某地）；在（某场合）
You use at to indicate the place or event where something happens or is situated.We had dinner at a restaurant in Attleborough...
我们在阿特尔伯勒的一家餐厅里吃的饭。
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3
PREP 在（上学）
If someone is at school or college, or at a particular school or college, they go there regularly to study.He was shy and nervous as a boy, and unhappy at school...
他小时候既害羞又胆怯，在学校过得并不快乐。
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4
PREP 在…旁边；靠近
If you are at something such as a table, a door, or someone's side, you are next to it or them.An assistant sat typing away at a table beside him...
助手坐在他身旁的一张桌子上埋头打字。
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5
PREP 从相隔（一段距离）的地方;呈…角度
When you are describing where someone or something is, you can say that they are at a certain distance. You can also say that one thing is at an angle in relation to another thing.The two journalists followed at a discreet distance...
那两个记者谨慎地保持距离跟在后面。
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6
PREP 在（某时间或时刻）
If something happens at a particular time, that is the time when it happens or begins to happen.The funeral will be carried out this afternoon at 3.00...
葬礼将在今天下午3点举行。
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7
PREP 在（某一年龄时）；在…岁时
If you do something at a particular age, you do it when you are that age.Blake emigrated to Australia with his family at 13...
布莱克在13岁时随家人移民到了澳大利亚。
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8
PREP 以，达（某一速度、频率、水平或价格）
You use at to express a rate, frequency, level, or price.I drove back down the highway at normal speed...
我以正常车速沿公路返回。
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9
PREP 以，达（某一数量）
You use at before a number or amount to indicate a measurement.Weighing in at eighty tons, the B-19 was easily the largest and most sophisticated warplane in the world.
B-19重达80吨，无疑是世界上最大、最先进的军用飞机。
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10
PREP 朝（某人或某物看）；向（某人掷物）；冲（某人说话）
If you look at someone or something, you look towards them. If you direct an object or a comment at someone, you direct it towards them.He looked at Michael and laughed...
他看着迈克尔笑了。
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11
PREP 向，朝（某人微笑、招手等）
You can use at after verbs such as 'smile' or 'wave' and before nouns referring to people to indicate that you have put on an expression or made a gesture which someone is meant to see or understand.She opened the door and stood there, frowning at me...
她打开门站在那里，朝我皱着眉头。
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12
PREP （指）向…
If you point or gesture at something, you move your arm or head in its direction so that it will be noticed by someone you are with.He pointed at the empty bottle and the waitress quickly replaced it...
他指了指空瓶子，女服务员立即重新拿了一瓶。
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13
PREP 致力于;定位于;期望达到
If you are working at something, you are dealing with it. If you are aiming at something, you are trying to achieve it.She has worked hard at her marriage.
她努力维系着她的婚姻。
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14
PREP 应（某人邀请或要求）
If something is done at someone's invitation or request, it is done as a result of it.She left the light on in the bathroom at his request...
她按照他的要求将浴室里的灯开着。
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15
PREP 处在…状态
You use at to say that someone or something is in a particular state or condition.I am afraid we are not at liberty to disclose that information...
恐怕我们无权透露这一信息。
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16
PREP （用于所有格代词和形容词最高级前，表示某人或某物在此时的某一特征最鲜明）
You use at before a possessive pronoun and a superlative adjective to say that someone or something has more of a particular quality than at any other time.He was at his happiest whilst playing cricket...
玩板球时他最开心了。
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17
PREP 以…方式
You use at to say how something is being done.Three people were killed by shots fired at random from a minibus...
3个人被从一辆面包车中发射的乱弹打死了。
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18
PREP （表示某人重复做某事）
You use at to show that someone is doing something repeatedly.She lowered the handkerchief which she had kept dabbing at her eyes...
她放下了那块一直用来擦眼睛的手帕。
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19
PREP 在…方面（擅长）
You use at to indicate an activity or task when saying how well someone does it.I'm good at my work...
我对自己的工作得心应手。
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20
PREP 对…的反应
You use at to indicate what someone is reacting to.Eleanor was annoyed at having had to wait so long for him...
埃莉诺为不得不等他这么长时间而感到很恼火。
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21
at all→ see:all
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I called in at my local on the way home .
我回家途中去了我住处附近的酒吧。
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The children are at different stages of development .
这些孩子处于不同的成长阶段。
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They had got too used to the soft life at home .
他们实在是过惯了家里的安逸生活。
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It 's very difficult to find work at the moment .
目前很难找到工作。
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It was the main focus of attention at the meeting .
这是会议上关注的主要焦点。
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The work will be carried out at a future date .
这项工作将来再做。
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At one stage it looked as though they would win .
有一段时间，他们好像大有获胜的希望。
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Water supplies to the house are at low pressure .
这房子的供水水压低。
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She 's very good at handling her patients .
她对待病人很有办法。
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It was hard going getting up at five every morning .
每天早上五点钟起床太难了。
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The fashion at the time was for teaching mainly the written language .
那时教学时兴的主要是书面语。
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This course is designed so that students can progress at their own speed .
这门课的设计思路是让学生自己掌握进度。
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I don 't like going out alone at night .
我不喜欢夜晚单独外出。
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We need to take a long hard look at all the options .
我们需要十分谨慎地考虑所有的选择。
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We 'll need to start at 7.00 .
我们需要在7点钟出发。
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Almost all homes have at least one TV set .
差不多每家都至少有一台电视机。
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Students were angry at being treated like children .
学生对于把他们当小孩子对待感到气愤。
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She was looking at me in a very strange way .
她用十分异样的目光看着我。
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I get off at the next station .
我在下一站下车。
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Well , I suppose I could fit you in at 3.45 .
好吧，我想可以在3:45见你。
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The test was pitched at too low a level for the students .
这次考试太低估学生的程度了。
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She felt she had looked at the problem from every aspect .
她觉得她已从各个角度考虑了这个问题。
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If necessary I can come at once .
如果有必要，我可以马上来。
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The product is still at a developmental stage .
这种产品仍处于研制阶段。
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They really put me through it at the interview .
面试的时候，他们真把我折腾了一番。
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I 've been working at my assignment all day .
我整天都在做作业。
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At first the place was strange to me .
起先我对这个地方不熟悉。
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The fish lay thousands of eggs at one time .
这种鱼一次产卵数千个。
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English is a compulsory subject at this level .
英语在这一级别是必修科目。
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As things stand at present , he seems certain to win .
据目前情况看，他似乎胜券在握。
- 习语