一、核心原则介词核心逻辑就像……at一个具体的坐标点地图上的图钉 on一个表面/平面/线贴在墙上的一张纸 in一个有边界的立体空间装在盒子里的玩具 记忆口诀at是点on是面in是空间里面。二、具体使用场景1️⃣ at —— 一个“点”不强调内部只强调位置场景例子具体地址门牌号at 123 Main Street某个小地点/设施at the bus stop, at the door, at the desk某个活动/事件at a party, at a meeting, at a concert某个建筑当作一个点at the cinema, at the airport某个路口/位置at the corner, at the traffic light关键理解用at时你不关心“里面”还是“外面”只把它当作地图上的一个坐标。✅ I‘ll meet youatthe station.车站被当作一个“碰头点”而不是强调走进去2️⃣ on —— 一个“面”或“线”场景例子在某个表面上on the table, on the wall, on the floor在一条线/路上on the road, on the river, on the coast在某条街道英式常用on Main Street美式常用 on在某个楼层on the second floor在交通工具可站立/行走on the bus, on the train, on the plane在左右边on the left, on the right关键理解on强调接触某个平面或沿着某条线。✅ She is sittingonthe sofa.✅ I left my bookonthe desk.3️⃣ in —— 一个“立体空间”有边界、被包围场景例子在国家/城市/地区in China, in Beijing, in Asia在一个封闭空间内in the room, in the car, in the building在水里in the water, in the pool在某个自然环境中in the mountains, in the forest, in the park在某个行业/领域in finance, in education在书籍/报纸/文件里in the book, in the newspaper关键理解in强调被某物包围、在内部。✅ She isinthe kitchen.✅ We liveinShanghai.三、最容易混淆的地方 at vs in —— 同一个地方两种视角地点用 at用 in机场at the airport碰头点in the airport内部逛免税店医院at the hospital去看病人/工作in the hospital住院/被包围学校at school上学/上课in the school在楼里面餐厅at the restaurant约了人in the restaurant坐在里面吃饭区别at 把地点当作一个点不关心内外in 强调在内部被包围✅ I‘ll see youatthe cinema. 门口碰头✅ It’s warminthe cinema. 坐在里面 at vs on —— 地址怎么写地址层级介词例子门牌号 街道atat 221B Baker Street只有街道名onon Baker Street城市/国家inin London, in England✅ He livesat10 Downing Street.✅ He livesonDowning Street.✅ He livesinLondon. on vs in —— 交通工具交通工具用 on用 in公交/火车/飞机/船✅ on the bus❌ in the bus小轿车/出租车❌ on the car✅ in the car自行车/摩托车✅ on the bike❌ in the bike规律能站起来走动的 →on只能坐着不能站的 →in四、总结at → 点 (the door, the station, 123 Main St) on → 面 (the table, the wall, the bus) in → 空间 (the room, Beijing, the car)五、特殊固定搭配短语介词为什么on the corneron在“拐角”这个平面上at the cornerat把拐角当作一个“点”in the cornerin在房间的“角落内部”on the buson可站立走动in the carin小车不能站on the lefton左/右边是“侧面”at homeat固定搭配点in bedin被被子包围六、自测题She’s waiting ______ the bus stop.I left my keys ______ the kitchen table.They live ______ 221B Baker Street.We stayed ______ a nice hotel ______ Paris.He’s ______ the hospital after the accident.Don‘t stand ______ the car; get ______ the car.Turn left ______ the traffic light.There’s a strange noise ______ the basement.答案atonatin / inin住院on站在车旁边不这里应该是 in front of 更合适但按介词题on 表示车顶不正确是Don‘t standin front ofthe car; getinthe car. 如果严格用 on/ingetonthe bus 但 car 用 in→ 修正Don‘t standonthe car别站车顶; getinthe car进车里atin七、记忆口诀小点用 at平面用 on立体空间用 in。地址有门牌用 at只有路名用 on国家城市用 in。公交火车用 on小车出租用 in走路骑车也是 on。