at

一、真题好句
at 义务阶段1500 全国卷频次:1117
/ət; æt/
prep.
在（几点钟）；在（某处）
高考真题原句提选：
It wasn’t easy at the beginning.
Owner Iain Powell said he had had cats at the gallery for 15 years.
Young children have to learn Chinese pinyin at school.
Equipment is included except walking shoes, which can be hired at a low cost.

二、词组｜习惯用语
at all （否定句）根本；究竟
be in at 在场，参与;参与；与…有关;[口语] (在某事的最后阶段)在场；参与：;
at it again [口语]争吵；重复负面消极的行为(此语亦可含有与性行为有关的意思)

三、词根记忆

at
prep.
[表示價格,速度等]以,達;在..方面It drives at about 100 kilometers an hour.它以每小時100公裏的速度行駛.

at / Et; strong form At /
preposition
1. used to say where sth / sb is or where sth happens
在(某处):
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？
2. used to say where sb works or studies
在(学习或工作地点):
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。
3. used to say when sth happens
在(某时间或时刻):
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。
(BrE) What are you doing at the weekend?
你打算周末干什么？
4. used to state the age at which sb does sth
在…岁时:
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。
5. in the direction of or towards sb / sth
向；朝:
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。
6. used after a verb to show that sb tries to do sth, or partly does sth, but does not succeed or complete it
(用于动词后,涉及未做成或未做完的事):
He clutched wildly at the rope as he fell.
他坠落时拚命想抓住绳子。
She nibbled at a sandwich (= ate only small bits of it).
她一小口一小口地吃三明治。
7. used to state the distance away from sth
在…远；从相隔…远的地方:
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？
8. used to show the situation sb / sth is in, what sb is doing or what is happening
处于…状态:
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。
9. used to show a rate, speed, etc.
(用于速度、比率等)以,达:
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。
10. ~ sb’s / sth’s best / worst, etc. used to say that sb / sth is as good, bad, etc. as they can be
处于最佳(或最差等)状态；在全盛(或谷底等)时期:
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。
11. used with adjectives to show how well sb does sth
(与形容词连用,表示状况)在…方面:
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。
12. used with adjectives to show the cause of sth
(与形容词连用)因为,由于,对…:
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。
13. (formal) in response to sth
应…(而)；响应；回答:
They attended the dinner at the chairman’s invitation.
他们应董事长之邀出席了宴会。
14. (NAmE) used when giving a telephone number
(提供电话号码时用):
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。
15. (computing 计) the symbol (@) used in email addresses
(用于电子邮箱地址中的符号 @)
IDIOMS
▪ at that
used when you are giving an extra piece of information
(提供额外信息时)而且还:
He managed to buy a car after all—and a nice one at that.
他终于设法买了一辆小轿车——而且还挺不错的。
▪ be ‘at it again
to be doing sth, especially sth bad
正在做某事(尤指坏事):
Look at all that graffiti—those kids have been at it again.
瞧瞧所有的那些涂鸦——又是那些孩子干的好事。
▪ 7where it’s ‘at (informal) a place or an activity that is very popular or fashionable
盛大活动(场合)；流行活动(地方):
Judging by the crowds waiting to get in, this seems to be where it’s at.
从等待入场的人群来看,这好像是个盛大活动。

at /ət; strong æt/ ●●● S1 W1 preposition
1  used to say exactly where something or someone is, or where something happens 在；在…里；在…上〔指地点〕
They live at 18 Victoria Street.
他们住在维多利亚街18 号。
Does this train stop at Preston?
这列火车在普雷斯顿停吗？
I was waiting at the bus stop.
我在公共汽车站等着。
Liz and her friend sat down at a corner table.
莉兹和她的朋友在靠角落的一张桌子旁坐下。
Turn left at the church.
在教堂那里朝左转。
We’ll meet at Harry’s (=at Harry’s house).
我们将在哈里家碰头。
I spent an unpleasant hour at the dentist’s.
我在牙医诊所度过了难熬的一小时。
Dad’s at work (=in the place where he works).
爸爸在上班。
at the top/bottom/end etc (of something)
At the top of the stairs, she paused.
她在楼梯最上面停了下来。
2  used to say what event or activity someone is taking part in 在〔做某事的时候〕
I met my wife at a disco.
我在迪斯科舞会上认识了我的妻子。
The matter was discussed at a meeting of the finance committee.
这件事在财务委员会的会议上讨论过了。
I’m sorry, Pam’s at lunch just now.
对不起，帕姆正在吃午饭。
3  used to say that someone is studying somewhere regularly 在〔上学〕
Is Jessica still at school?
杰茜卡还在上学吗？
Hulme was a student at Oxford in the 1960s.
20世纪60年代休姆在牛津求学。
4  used to say exactly when something happens 在…时刻〔表示某事发生的确切时间〕
The film starts at 8 o’clock.
电影8点钟开始。
5  during a particular period of time 在…期间
My husband often works at night.
我丈夫经常在晚上工作。
We go to Midnight Mass at Christmas.
圣诞节我们去参加子夜弥撒。
6  used to say which thing or person an action is directed towards or intended for 向，朝
He gazed up at the sky.
他抬头凝望天空。
You don’t have to shout at me.
你用不着朝我嚷嚷。
The older girls used to throw stones at me.
那些大一点的女孩以前常常朝我扔石子。
The course is aimed at those aged 16 or over.
这门课的对象是16岁及以上的人。
7  used to say what or who causes an action or feeling 因为，由于
The children all laughed at his jokes.
孩子们听了他的笑话都笑起来。
I’m surprised at you!
你真让我吃惊啊！
Dad got really mad at me for scratching the car.
爸爸因为我刮坏了汽车对我大为光火。
her distress at having to leave
她因不得不离去而感到的悲伤
8  used to say which subject or activity you are talking about when you say whether someone is skilful, successful etc or not 在…方面
9  used to say that someone or something is in a particular state 处于〔某种情况或状态〕
10  used to show a price, rate, level, age, speed etc 以；在〔表示价格、比率、水平、年龄、速度等〕
11  at your best/worst/most effective etc used to say that, at a particular time, someone or something is as good, bad etc as they can be 处于最佳/最差/最有效等的状态
12  used to say what someone tries to touch, or keeps touching 〔表示试图触及或不放开〕
13  used to say what someone tries to do 从事于
14  because of what someone has said 应，响应，由于〔某人的话〕
15  while I’m/you’re etc at it spoken used to suggest that someone should do something while they are doing something else 趁我/你等在做某事的时候顺便〔用于建议别人做某事〕
16  be at it again informal if you say that someone is at it again, you mean that they are doing something you disapprove of, which they have done before 又来了〔表示某人又在做你不喜欢的事〕
17  at that
18. be where it’s at old-fashioned informal used to say that a place or activity is very popular, exciting, and fashionable 是流行[精彩，时尚]的场所[活动]→ at all at all1(6)
 USAGE: At, in, on
Origin at Old English æt

at ★★★★★
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。

1.PREP 介词在（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。

He will be at the airport to meet her…

他将去机场接她。

I didn’t like being alone at home…

我不喜欢一个人呆在家里。

Hamstrings are supporting muscles at the back of the thigh…

腿筋是位于大腿后侧起支撑作用的肌肉。

The announcement was made at a news conference.

这项声明是在新闻发布会上宣布的。

2.PREP 介词在（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。

It was at university that he first encountered Hopkins…

他第一次遇见霍普金斯是在上大学的时候。

I majored in psychology at Hunter College.

在亨特学院求学时，我主修心理学。

3.PREP 介词在…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。

Graham was already at the door…

格雷厄姆已经在门口了。

At his side was a beautiful young woman…

他旁边是个年轻漂亮的女子。

He gave the girl at the desk the message.

他把便条递给了桌旁的女孩。

4.PREP 介词从相隔（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。

The tree was leaning at a low angle from the ground.

那棵树倾斜得非常厉害。

5.PREP 介词在（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。

He only sees her at Christmas and Easter.

他只有在圣诞节和复活节时才能见到她。

6.PREP 介词在（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。

Mary Martin has died at her home in California at the age of seventy-six.

玛丽·马丁76岁时卒于加利福尼亚家中。

7.PREP 介词以，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。

Check the oil at regular intervals, and have the car serviced regularly…

定期检查汽油，并对车辆进行定期维护。

The submarine lies at a depth of 6,000 feet in the Barents Sea.

潜艇位于巴伦支海水下6,000英尺深处。

…custom-designed rugs at $16 to $100 a sq ft.

价格在每平方英尺16至100美元不等的定制地毯。

8.PREP 介词以，达（某一数量） You use at before a number or amount to indicate a measurement.

【搭配模式】：PREP amount
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。

…as unemployment stays pegged at three million.

当失业人数维持在300万

9.PREP 介词朝（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。

The crowds became violent and threw petrol bombs at the police…

人群变得狂暴起来，并向警察投掷汽油弹。

A couple of people started shouting abuse at them as they walked past a pub.

当他们经过一个酒吧时，有几个人开始朝他们谩骂。

10.PREP 介词向，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.

【搭配模式】：v PREP n
She opened the door and stood there, frowning at me…

她打开门站在那里，朝我皱着眉头。

We waved at the staff to try to get the bill.

我们向工作人员招了招手，想要买单。

11.PREP 介词（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.

【搭配模式】：v PREP n
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。

He gestured at the shelves. ‘I’ve bought many books from him.’

他指着书架说，“我已经从他那里买了不少书了”。

12.PREP 介词致力于;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。

…a $1.04m grant aimed at improving student performance on placement examinations.

旨在提高学生编班考试成绩的104万美元拨款

13.PREP 介词应（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.

【搭配模式】：PREP n with poss
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。

I visited Japan in 1987 at the invitation of the Foreign Minister.

应日本外相的邀请，我于1987年访问了日本。

14.PREP 介词处在…状态 You use at to say that someone or something is in a particular state or condition.

【搭配模式】：v-link PREP n
I am afraid we are not at liberty to disclose that information…

恐怕我们无权透露这一信息。

Their countries had been at war for nearly six weeks.

他们的国家陷入战争状态已将近6个星期了。

15.PREP 介词（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.

【搭配模式】：PREP poss adj-superl
He was at his happiest whilst playing cricket…

玩板球时他最开心了。

Howards End is old fashioned film-making at its best.

《霍华德庄园》是一部经典的老派电影。

16.PREP 介词以…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。

Mr Martin was taken out of his car at gunpoint.

马丁先生被人用枪指着从车里带了出来。

17.PREP 介词（表示某人重复做某事） You use at to show that someone is doing something repeatedly.

【搭配模式】：v PREP n
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。

Miss Melville took a cookie and nibbled at it.

梅尔维尔小姐拿起一块饼干小口吃起来。

18.PREP 介词在…方面（擅长） You use at to indicate an activity or task when saying how well someone does it.

【搭配模式】：adj PREP n
I’m good at my work…

我对自己的工作得心应手。

Robin is an expert at cheesemaking…

罗宾是奶酪制作专家。

She excels at sport.

她擅长体育运动。

19.PREP 介词对…的反应 You use at to indicate what someone is reacting to.

【搭配模式】：adj PREP n
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。

The British team did not disguise their delight at their success…

英国队毫不掩饰他们获胜的喜悦。

Six months ago she would have laughed at the idea.

要是在6个月前，她会对这个想法嗤之以鼻。

20. at all→see: all;

at /ˈæt/ /ət/ preposition
1
— used to indicate the place where someone or something is在…里；在（某处）
We’re staying at a hotel.
我们待在宾馆里。
The kitchen is at the back of the house.
厨房在房子后面。
He was sitting at the table.
他坐在桌旁。
They left for Cambridge early and arrived at [=in] Cambridge before noon.
他们一早出发前往剑桥，在中午之前到达。
The party will be at Susan’s house. = The party will be at Susan’s.
聚会将在苏珊家举行。
Ann works at [=in] a library.
安在图书馆工作。
We met at a party.
我们在一次聚会上相遇。
They live at opposite ends of town.
他们居住在镇子相对的两头。
They met at [=on] a street corner in a town.
他们在一个小镇的街角碰面。
“Is your father at home?” [=is your father home?] “No, he’s working late at the office.”
“你父亲在家吗？”“他不在家，他在办公室加班。”
She met us at the door.
她在门口接我们。
He was standing at [=next to] the window.
他正站在窗边。
There were 200 people at the wedding. [=200 people attended the wedding] 有200人参加了婚礼。
Their older son has graduated, but their younger son is still at school. [=is still attending school] 他们的大儿子毕业了，但小儿子还在上学。
Who was at the controls when the accident occurred?
事故发生时，谁在开车？
2
— used to indicate the person or thing toward which an action, motion, or feeling is directed or aimed向；朝；以…为目标
She pointed her gun at the target.
她用枪瞄准了目标。
He’s angry at his brother.
他很生哥哥的气。
His anger is directed at his brother.
他把气都撒在哥哥身上。
She shouted (words of) abuse at me.
她大声辱骂我。
He looked directly at me.
他直视着我。
They laughed at him.
他们嘲笑他。
She grabbed at my arm. [=she tried to grab my arm] 她想要抓住我的胳膊。
He poked at his food.
他拨弄着他的食物。
3
— used to indicate something that is being tried or attempted从事；忙于
I made an attempt at persuading him to go.
我试图说服他去。
I took a shot at doing it myself. [=I tried to do it myself] 我尝试自己去做这件事。
4
: because of or in reaction to (something)因为；由于；对…回应
They laughed at my joke.
他们听了我的笑话全都笑了起来。
She’s furious at how slowly the investigation is proceeding.
她对调查进展得如此缓慢感到愤怒。
— used to indicate the cause of an action, feeling, etc.用于指引起某种举动、情感等的原因
I was greatly surprised at [=by] the result. [=the result surprised me greatly] 这个结果让我大吃一惊。
He enlisted in the army at his father’s urging. [=because his father urged him to] 由于父亲的主张，他加入了陆军。
She visited the museum at my suggestion.
她听从我的建议参观了那家博物馆。
They came here at our invitation.
他们应我们的邀请来到这里。
You can act at your own discretion.
你可以自主行事。
5
— used to indicate an activity处于…活动
He’s very serious when he’s at work. [=when he’s working] 他工作时很严肃。
children who are at play [=children who are playing] 正在玩耍的孩子们
She’s good at (playing) chess. [=she plays chess well] 她擅长下国际象棋。
I’m bad at cooking. [=I’m a bad cook, I do not cook well] 我不擅长烹饪。
She’s doing very well at her studies.
她学习非常棒。
6
— used to indicate a situation or condition处于…状态
I’m not at liberty to discuss that.
我现在无权讨论那个问题。
at rest
处于静止状态
two nations that are at war
处于战争状态的两个国家
people who are at risk
处于险境的人
He is now at peace.
他现在平静了。
7
a — used to indicate position on a scale or in a series达（表数值）
The temperature is at 90 degrees.
温度现在达到90度。
He was driving at almost 80 miles an hour.
他开车的时速差不多有80英里。
b — used to indicate a rate以（表价格）
They sell at [=for] a dollar a dozen. [=each dozen costs one dollar] 他们卖一美元一打。
8
— used to indicate an age or time在…岁时；在…时间
He plans to retire at (age) 65.
他计划65岁退休。
He called us at (about/exactly) 9 o’clock on July 24.
他7月24日（大约/整）9点给我们打的电话。
at dawn/noon/sunset/night
在凌晨/中午/傍晚/夜晚
I still think of her at certain moments/times.
我现在在某些时刻还是会想起她。
He was president of the company at (the time of) his death.
他去世时任公司总裁。
9
— used to indicate the method by which something is done通过；经由
The property was sold at auction.
这处房产通过拍卖售出。
10
a — used in phrases like at best, at worst, etc., to indicate a possible result or condition that is considered best, worst, etc.最好的，最糟的（用于at best、at worst等短语）
The company will make a small profit at best this year. [=it is not possible that the company will earn anything better/more than a small profit] 公司今年顶多是微赢利。
We might be 5 or 10 minutes late at worst. [=we will not be more than 5 or 10 minutes late] 我们可能最多也就是迟到5或10分钟。
We should arrive by noon at the latest. [=we should not arrive later than noon] 我们最迟应该在中午到。
b — used in phrases like at its best, at its worst, etc., to indicate that something or someone is as good, bad, etc., as possible处于最佳（或最差）的状态（用于at its best、at its worst等短语）
This is baseball at its best.
这是最精彩的棒球比赛。
He’s often rude, and last night he was at his worst.
他经常很无礼，昨晚无礼到了极致。
◊ The word at is used in speech in e-mail addresses.单词at用于口述电子邮件地址时。
“Can I e-mail you?” “Sure. Our e-mail address is ‘comments at Merriam-Webster dot com.’”
“我可以给你们发电子邮件吗？”“当然可以。我们的电子邮箱地址是comments at Merriam-Webster dot com。”
In writing, the symbol @ is used instead.在书面语中，用符号@代替。
comments@Merriam-Webster.com
at it
: doing some activity做某事
I didn’t expect her to have started working yet, but she was already (hard) at it when I arrived. [=she was already working (hard) when I arrived] 我本来没指望她开始工作，但我到的时候她已经在（努力）干活了。
My neighbors are always arguing, and they were at it again last night. [=they were arguing again last night] 我的邻居总是吵架，昨晚他们又吵起来了。
Since we’re cleaning the kitchen, we should wash the floor while we’re at it. [=we should wash the floor when we clean the kitchen] 既然要打扫厨房，我们应该同时把地板也擦了。
“I’m going to the store to buy a newspaper.” “While you’re at it, could you get some milk?”
“我要去商店买份报纸。”“你买报纸时，顺便买点牛奶好吗？”
at that
— see 1that
where it’s at
— see 1where
where (someone) is at
— see 1where