高三英语语法讲解 专题15 介词.doc

一.概念: 介词表示它后面的名词或相当于名词的其他结构与句中其他成分的关系.二.要点精讲1.表示地点位置的介词1)at ,in, on, toat (1)表示在小地方; (2)表示“在附近，旁边”in (1)表示 在大地方; (2)表示“在范围之内”。on 表示毗邻，接壤to 表示在范围外，不强调是否接壤he arrived at the station at ten.he is sitting at the desk.he arrived in shanghai yesterday.jiangsu lies in the east of china.russia lies on the north of china.fujian is to the south of jiangsu province.2.表示时间的介词1)in , on，at 在时in表示较长时间，如世纪、朝代、时代、年、季节、月及一般（非特指）的早、中、晚等。如 in the 20th century, in the 1950s, in 1989, in summer, in january, in the morning, in the night, in ones life , in ones thirties等。on表示具体某一天及其早、中、晚。如on may 1st, on monday, on new years day, on a cold night in january, on a fine morning, on sunday afternoon等。at表示某一时刻或较短暂的时间，或泛指圣诞节，复活节等。 如at 3:20, at this time of year, at the beginning of, at the end 3.表运动方向的介词：across, through 通过，穿过across表示横过,即从物体表面通过，与on有关；through穿过,即从物体内部穿过，与in有关。she swam across the river.he walked through the forest.4.表示“在之间”的介词：between, amongbetween指在两个人或两个事物之间；among指在三个或三个以上的人或事物之间。there is a football match between class one and class two on the playground.the teacher is standing among the students.5.表示其他意义的介词1)on ,about 关于on表示这本书，这篇文章或演说是严肃的，或学术性的，可供专门研究这一问题的人阅读；about表示内容较为普通，不那么正式。there will be a lecture on economics this afternoon.he is writing a book on cooking.he told me a lot about his life in the summer vocation.2)by, with, in 表示方法、手段、工具by 以方法、手段或泛指某种交通工具；with 表示用 工具、手段，一般接具体的工具和手段；in 表示用方式，用语言(语调、笔墨、颜色)等；he makes a living by selling newspapers. he broke the window with a stone. the foreigner spoke to us in english.3)except, besides 除了except 除之外，不包括在内；besides 除之外，包括在内。except mr. wang, we went to