fternoon.Рfrom, since 自从……?from仅说明什么时候开始,不说明某动作或情况持续多久;?since表示某动作或情况持续至说话时刻,通常与完成时连用。? He studied the piano from the age of three.? They have lived here since 1978.Р注意:在last, next, this, that, some, every, all或者tomorrow, yesterday, today 等词之前一律不用介词:? We meet every day. ? Where did you go last weekend? ? Where are you going next week?Р地点介词Р表示地点位置的介词, 主要有at, on, in, to?at (1)表示在小地方(一个点); ?(2)表示“在……附近,旁边”?at home, at the bus stop, at school?He is sitting at the desk.?He arrived at the airport at 9:00 am.Рin (1)表示在大地方; (2)表示“在…范围之内”。?In Paris, in the water, in school?He arrived in Shanghai yesterday. ?Jiangsu lies in the east of China.Рon (1)表示在一个表面, (2)毗邻,接壤? There are many books on the desk.? Russia lies on the north of China.?to 表示在……范围外,不强调是否接壤? Fujian is to the south of Jiangsu Province.
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