表示时间的介词表示方位的介词要点解读
1．表示时间的介词
介词 用法
at 表示时间的点、时刻等。at 6：00 o'clock在6点钟；at daybreak在黎明
on 表示具体的日子或一个特定的时间或具体的某一天的上午、下午或晚上(常有前置定语或后置定语修饰)。on Monday afternoon在周一下午；on a rainy day morning在一个雨天的上午
in 表示在某段较长的时间内。in the 20th century在 20世纪；in winter在冬季；in September在9月；in the morning在上午
since＋
时间点 自从……以来
for＋
时间段 长达……
during 在……期间
until/till 直到……
by 到……为止；不迟于……
in/after＋时间段 在……之后。“in＋时间段”常与将来时连用；“after＋时间段”常与过去时连用
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before 在……之前over 在……期间；直到……结束Jane is in a hurry because the train to the airport leaves in half an hour.简很着急，因为去机场的火车半小时后出发。In Britain，it's not unusual to have a business meeting over breakfast.在英国，早餐时间开商务会议并不稀奇。[易错提醒] 1．当时间名词前有this，that，last，next，every，each等词修饰时，通常不用任何介词。2．“on/upon＋名词或动名词”结构可以表示“一……就……”。2．表示方位的介词介词 用法at 后常接相对较小的地方in 后常接相对较大的地方或在某一个大的范围之内on 表示“在……上”。(反义词beneath)across 表示“从……的表面穿过；在……对面”through 表示“从……的内部穿过”over 表示“从……的上面跨过”(反义词under)above 指离开物体表面而在其上方，但并不一定是垂直向上。还可指数目、数量、水平、年龄等“超过，多于，大于”(反义词below)The dog jumped over some bushes and saw the little scream.狗跳过几丛灌木看到小溪。The sunlight came in through the windows in the roof and lit up the whole room.阳光透过天窗，照亮了整个房间。[题组试做]Ⅰ.单句语法填空1．(2020·成都摸底)Students at a primary school in Hangzhou had their first class on March 1st on movable type.2．(2020·浙江省名校新高考研究联盟联考)Pemberton decided to sell it as a drink rather than a medicine. Ⅱ.单句改错3．(2020·衡水中学高三第一次联考)He thanked for me again and again. I smiled and said it was nothing. 删除for4．(2020·湛江市调研)In the afternoon, sometimes I went swimming on the river. on→in5．(2020·南充市统考)I had practiced for it many times, but I didn't think I had done a very good job. 删除 for6．(2020·合肥调研)After that，we went to do some housework for the senior people who lived their own. lived后加on
