介词专练常用介词用法歌诀in在里面on在上;by和beside在近旁；above表示在上方，below恰好为反向若表正上用over，under表示正下方in front of表在前，反义behind在后面从里穿过用through，表面通过across进到里面用into，落到上面用ontofrom表示自何方，to和towards表朝向小小介词用处大，反复实践掌握它一、表示时间和日期的介词at表示某一时刻或时间上的某一点 on表示某一天，某一天的上午、下午或晚上； in表示年、季节、月份、周，或泛指上午、下午或晚上；at表示具体的时刻at seven oclockat half past twoon主要用于具体的某一天或某一天的上午、下午或晚上，还用于具有某种特征的一天on Mondayon August 8th, 2008on the night of National Dayon a rainy eveningin用于世纪、年、季节、月in the 21st century / in 2010 / in spring / in January固定用法in the morning /in the afternoon / in the eveningat noon /at night /at midnight二、表示方位的介词on意为“在……的上面”；over意为“在……（垂直）的正上方”；above意为“在……（不一定垂直）的上方”；under意为“在……（垂直的）正下方”；below意为“在……（不一定垂直）的下方”；near意为“在……附近”；next to意为“紧挨着……”；round / around意为“在……周围”；by意为“在……旁边”；表示两者的位置关系时in表示“在同一区域内或同一范围内”；on表示“接壤；相邻”；to表示“相离；相隔”，两者不属同一范围，也不接壤。
介词意 义例 句on在……上His book is on the desk.under在……下The football is under the chair.in在……里There is a pencil case in the schoolbag.in front of在……前There is a tree in front of the house.behind在……后He is standing behind me.beside在……旁边Tom is sitting beside the window.三、表示延续时间的介词by意为“在……之前；不迟于……”；for意为“历时……之久；持续……”；in意为“在……以后；在……时间内”；since意为“自从……以来；自……以后”；until用于否定句中，意为“直到……才”，其前的谓语动词多为非延续性动词，用在肯定句中，意为“直到……为止”，其前谓语动词须用延续性动词如：他已经当老师9年了He has been a teacher ________ nine years.我已经在这儿住了10年了I have lived here ________ ten years ago.他十分钟之后将会回来。
He will be back ________ ten minutes.知道五月，我们才会看到一些花We don’t see any flowers ________ May.你必须得在这里站到太阳落下去为止You must stand here ________ the sun sets.我明天早晨八点前必须得到校I must be at school ________ eight tomorrow morning.你能在五分钟之内干完这些工作吗？Can you finish your work _______ five minutes?四、表示方式的介词介词用来表交通，常把by, in, on来用；限定、复数用in / on，by要直通海陆空；(骑马、骑车惯用on，小轿车前in才通)【注】1. by + 交通工具，意为“乘坐……”如： 海：by ship / boat / sea 陆：by bus / car / train / bike / taxi 空：by air / plane / spaceship2. on / in + 限定词 + 交通工具，意为“乘坐……”如： He goes to work on the bike /He goes to work in his car. 他骑自行车 / 开车去上班。
3. on foot为固定短语，意为“步行”五、表示运动方向的介词 across意为“从……表面穿过”，或沿某一条线的方向而进行的动作；through意为 “从……内部穿过”，past和by表示“从旁边经过或路过”如： Please be careful when you go ________ the street. Look! The mosquito is trying to fly ________ the window. We often go ________ a bakery on our way to school.六、不用介词的情况 today, yesterday, tomorrow等时间状语前；含有last, this, that, these, those, next, every, one, some, all等词的时间状语前；here, there, home, back等副词前如：We meet every day. 其他介词about 关于,附近,大约,周围,随身.There are about fifteen trees in the picture. 大约有十五棵树在图片里。
for 为..., 因为..., 至于... He works for this company. 他为这家公司工作from 从..., 来自..., 因为...Where are you from? 你是哪里人？He died from an accident. 他死于一场事故of ...的，属于...This is a map of China. 这是一张中国地图新目标英语七年级上专题练习:选择正确的介词 1． Taiwan is _____the southeast of China.A. at B. on C. to D. in2. —What did you get _____your mother _____Mother’s Day ? —A beautiful card with “Thank You,Mum”. A. for, in B. for, on C. to, for D. to, at 3. Sanya is in the south of the island and it is famous _____“Tianya Haijiao”. A. as B. for C. in D. at 4. Kelly cooked dinner _____her parents while they were cleaning the yard. A. with B. for C. to 5. All the clerks went home _____Mr. Wang, for he had to finish his work. A. except B. for C. to 6. It’s not good to be late ____school. A. to B. for C. with D. without7. I find Tom easy to get along _____, so I’d like him to come to my birthday party. A. to B. for C. with 8. _____a player, I’m looking forward _____the 2008 Olympic Games. A. For, at B. As, to C. With, for D. Of, to 9.What do you think life will be like _____one hundred years？ A．on B. in C. at10.Do you often write _____your pen friend ? A. with B. for C. to 11．After class, It like playing computer games and chatting _____my friends_____ the Internet. A. to, by B. with, on C. for, in D. about, through12._____the morning of March 31, she made an important decision in her life. A. Since B. In C. From D. On13.Gina was born _____1999. She is old enough to go to school. A. to B. on C. at D. in14.—When do you shopping? —I usually go shopping _______Sunday mornings. A. on B. in C. at D. for 15.Who will be _____duty tomorrow? A. at B. on C. for D. in16.Yao Ming is a great basketball player .We are proud _____him. A. of B. to C. for D. at17.—Do you go to school every day? —No, we go to school only _____Monday to Friday. A. from B. on C. between D. in18. —What can I do _____you? —I’d like a cup of tea. A. of B. for C. to D. with 19.—What would you do _____the lost library book? —I would try to find it。