| 词组 | at |
| 释义 | 1． at 与 in 的区别。 1) 一般来说，at 后面跟较小的地名， in 后面跟较大的地名: at Shanghai in China 2) 但这是相对而言的，如上海比复旦大学大，所以上海前面改用 in: at Fudan University in Shanghai 3) 国家前面常用 in: in the United States in Japan 4) at 与 in 有时可换用，但含义不同: The conference was held at the auditorium. The conference was held in the auditorium. 5) 上述两句从表面上看意思相同，其实不然; in 包含“四周被围住或被封闭在里边开会”的意思，而 at 仅交代会议地点。 6) 说某大城市的某大建筑时，城市前用 at 或 in 都可以，in 的使用频率高: the Library Hotel in New York the Twin Towers at New York 7) 将某地方 ( 如车站、机场、学校、商店等) 看作一个点时，常用 at: at the bus stop at the airport at the post-office 8) 说具体的地址，如水电路 1325 号时用 at: at 1325 Shuidian Road 9) 单说某某路，用 on 或 in: on Lockwood Road the driveways in 12th Avenue 2． 常与行为动词连用，表示“试图干……”，但是不一定成功: guess at the answer 猜答案 ( 不一定猜对) 3． 后面可跟其他介词: at about the same time at about the 2003 level 4． 说具体时刻常用 at: at nine o'clock at ten to eight 5． 说较短的时期时常用 at: at the weekend at the moment at the end of the month 6． 常与表示时间的名词构成短语，名词前常不用冠词: at dawn at daybreak at sunrise at sunset at noon at midnight at dusk at midday at night at nightfall at present 7． 与某些宗教节日连用: at Christmas at Easter at Halloween 8． 常可构成一些短语，不加冠词: at home at work at school at college at lunch at dinner at breakfast at rest at war at peace 9． 表示“某人工作的地点”时，常使用 at，“'s”后面的名词可省去: at the butcher's at the baker's at the dentist's at the hairdresser's at the baker's ( shop) 10． 价格、温度、速度、比率、年龄等前面常用 at: at $ 5 apiece at 55 miles an hour at the age of 45 at low temperatures 11． 在美语中，电话号码前常用 at，英国人常用 on: You can reach me at 65641235． 12． 瞄准、指点、观看的特定方向、目标前常用 at: aim at the target shoot at the birds stare at me 13． 反复进行但仍未完成动作的对象前常用 at: sipping at tea nibbling at the pie gnawing at the bone 14． 用在名词所有格 + 形容词最高级前: at his best at its finest at his most forceful at its worst 15． 可以用来说明某人的特长或短处: I am an expert at chess. I am good at cooking. I am bad at sports. 16． 表示“在吃饭”，可用 at: at breakfast at lunch at supper at dinner at meals 17． 表示“在忙什么”，可用 at: the children at play He is busy at work. |
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