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| PREPOSITION |
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| weak /ət/ |
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| strong /æt/ |
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| 1 | used for stating where sb or sth is
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| | 1a | in a particular place 在…里；在… | | There’ s a telephone box at the crossroads. 十字路口处有个电话亭。 | | I’ ll meet you at the main entrance. 我在大门口等你。 | | She’ s staying at the Clarence Hotel. 她住在克拉伦斯宾馆。 | | We live at 23 Brookfield Avenue. 我们住在布鲁克菲尔德大街23号。 | | at sb’ s (=at their house) I’ m babysitting at Sally’ s tomorrow night. 在某人家里 | | at home He wants to spend more time at home with his family. 他想花更多时间在家陪伴家人。 | | at work (=in the place where someone works) Dad should be at work by now. 在上班 | | at the doctor’ s/dentist’ s/hairdresser’ s etc Trevor’ s at the doctor’ s – he’ ll be back soon. 特莱维在看医生，他很快就会回来。 | |
| | 1b | used for saying where you stop on a journey 在…（停留） | | Does this train stop at Newport? 火车在纽波特停吗？ | | The ship called in at Bombay and Singapore. 轮船在孟买和新加坡停靠过。 | |
| | 1c | sitting or standing close to something , especially in order to do something 在…旁；靠近… | | Lambert was seated at the piano. 兰伯特坐在钢琴旁。 | | She was standing at the window, staring out across the garden. 她站在窗前，向外凝视着花园。 | |
| | 1d | in a particular part of a process , activity , programme , or book 在（进程、活动、计划或书的某部分） | | At some point in the process things started to go wrong. 在进程中的某个时候开始出错。 | |
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| 2 | used for stating what sb is doing
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| | 2a | used for saying that someone is doing something or taking part in an activity somewhere 在…上（用于表示正在某地从事的事情或参与的活动） | | at a party/concert/meeting etc We were at a party last night when you called. 你昨天晚上打电话时我们正在参加一个聚会。 | | at school/college etc (=studying at an educational institution) Has Karen graduated, or is she still at college? 在上学/大学等 | |
| | 2b | used for saying that someone is having a meal 在吃午饭/正餐/早饭等 | | I’ m sorry, the person you want is at lunch. 抱歉，你想找的人在吃午饭。 | | What were we talking about at breakfast? 我们早饭时谈了什么？ | |
| | 2c | used for stating what state or situation someone or something is in 处于…状态 | | at leisure/rest/war/peace etc The country was at war and life was difficult for everyone. 这个国家处于战争状态，每个人的生活都很艰难。 | | Spend the morning at leisure beside the hotel pool. 在酒店游泳池旁悠闲地打发上午的时光。 | |
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| 3 | used for stating when sth happens
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| | 3a | used for stating the exact time when something happens 在…点钟 | | The match starts at 3 o’ clock. 比赛3点钟开始。 | | There’ s a train at 11.42. 11点42分有一班火车。 | |
| | 3b | used for saying when a particular situation exists 在…时候 | | at present/at the moment (=now) Everyone’ s busy with exams at present. 现在 | | I can’ t give you any more information at the moment. 我现在无法告诉你更多信息。 | | at the time (=when something happened in the past) Monica was born in 1972. We were living in Edinburgh at the time. 那时 | | at the beginning/start/end of sth It’ s a style that was popular at the beginning of the 20th century. 这是20世纪初期流行的一种风格。 | |
| | 3c | during a particular period 在…期间 | | What are you doing at the weekend? 你们周末要做什么？ | | My wife’ s parents came to stay with us at Christmas. 圣诞节的时候，我妻子的父母来同我们住在一起。 | | at night (=during any night) At night temperatures sometimes fall to 30 degrees below zero. 在晚上；在夜间 | |
| | 3d | when someone is a particular age 在（某一年龄） | | Mozart was already composing music at the age of five. 莫扎特5岁就开始谱曲了。 | |
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| 4 | used for stating what sb reacts to
used for stating what makes someone react in a particular way 针对…（作出反应） |
| Audiences still laugh at his jokes. 观众仍然会被他的笑话逗笑。 |
| She was annoyed at being disturbed in the middle of the night. 她对半夜被打扰觉得很恼火。 |
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| 5 | used for showing prices, temperatures, speeds etc
used for showing the level of prices, temperatures, speeds etc （价格、温度、速度等）以，达 |
| Tickets are now on sale at £12 each. 票现在每张卖12英镑。 |
| His Ferrari crashed at 120 miles an hour. 他的法拉利轿车在以120英里的时速行驶时撞毁了。 |
| The plastic pipes will melt at high temperatures. 塑料管在高温下会融化。 |
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| 6 | looking, aiming etc in a particular direction
used for stating the direction in which you look , point , or aim something 向；朝 |
| Armed gangs were shooting at police cars. 武装暴徒向警车开火。 |
| Why are you staring at me like that? 你为什么那样盯着我看？ |
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| 7 | trying to hold or hit sb or sth
used for stating what someone is trying to catch , hold , or hit （表示抓、打等动作的对象）打 |
| He grabbed at my sleeve, but I pulled away. 他抓住我的袖子，但我甩开了。 |
| She struggled, hitting out at her attackers. 她挣扎着，朝袭击者打过去。 |
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| 8 | continuing to do sth
used for showing that you repeat an action many times with small movements but without doing it completely （表示持续不断重复幅度小的动作） |
| I muttered to myself, sipping at my coffee. 我不停地呷着咖啡，自言自语。 |
| Stop picking at the scab, or it won’ t heal. 不要老抓那块痂，否则它不会愈合。 |
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| 9 | used for stating what sb can do well
used for stating the activity or subject that someone is skilful or not skilful in 在…方面（擅长） |
| Brownstein is an expert at cooking as well as gardening. 布朗斯坦既是烹饪高手，也是园艺专家。 |
| good/bad at sth I’ ve never been very good at sports. 我从来就不擅长体育。 |
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| 10 | AMERICAN used for giving phone numbers
used for stating the phone number where someone can be reached. BRITISHon （表示联系某人拨打某电话号码） |
| You can reach us at 555–3964. 你可拨打555-3964与我们联系。 |
| PHRASES |
| - | atall
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| used for emphasis when you are saying or asking whether something is even slightly true , especially after words such as ‘any’ , ‘anything’ , ‘anyone’ , or ‘nothing’ |
| 一点都（尤与any, anything, anyone, nothing 等词连用） |
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| Has the situation improved at all? 局势有点好转了吗？ |
| You don’ t have any money at all? 你一点钱都没有吗？ |
| He doesn’ t know anything at all about computers. 他对计算机一窍不通。 |
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| - | at sb’ s best/worst/strongest etc
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| used for saying that someone or something shows their bestworst etc qualities in a particular event or situation |
| 在某人状态最佳/最糟/最强等时 |
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| This is an example of old-fashioned prejudice at its worst. 这是旧式偏见的一个最糟糕的例子。 |
| At his most forceful, Cockburn can be a very persuasive speaker. 在最能言善辩时，科伯恩可以是一个非常有说服力的演讲者。 |
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| - | at sb’ s request/suggestion/invitation etc
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| because someone has asked you to do somethingsuggested something etc |
| 应某人要求/建议/邀请等 |
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| A meeting was arranged at the ambassador’ s request. 应大使的要求安排了一次会议。 |
| At my suggestion, Mrs Carey wrote to her former employer. 在我建议之下，凯里夫人给她的前雇主写了信。 |
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| - | be at it spoken
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| if someone is at it , they are doing something that you do not approve of |
| 做某事（尤指不赞同的事） |
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| He’ s at it again, trying to cheat the customers. 他又那样，想欺骗顾客。 |
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| - | while you’ re at it spoken
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| used for telling someone to do something while they are doing something else |
| 当你做这事时 |
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| ‘I’ m just going to clean my boots.’ ‘Well, you can clean mine too while you’ re at it.’ ’“我要洗洗我的靴子。”“噢，你洗的时候把我的也洗洗。” |
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