behind ①在……之后： There is a bike behind the tree. 树后有一辆自行车
②比……晚，迟于： The train is behind time. 火车晚点了
by ①在……旁： He is sitting by the bed. 他正坐在床边。
②到……时候： We have learned three English songs by now.
到现在为止，我们已经学会了三首英文歌曲。
③以……方式： I go to school by bus. 我乘公共汽车去上学。
④用于某些固定搭配： one by one 一个接一个 by the way 顺便说一句
for ①为，给，替： I'll make a card for my teacher. 我要给老师做张卡片。
②由于： Thank you for helping me. 谢谢你帮我。
③表示给(某人)用的： There is letter for you. 这儿有你一封信。
in ①在……里面： The pencil is in the desk. 铅笔在课桌里。
②在一段时间里： We have four classes in the morning. 我们上午有四节课。
③用，以： What's this in English? 这用英语怎么说?
④在某一年份，季节，月份： in 2002, in spring, in January
⑤表示状态，服饰： Helen is in yellow. 海伦身穿黄色衣服。
⑥在……方面： He is weak in English. 他的英语不行。
⑦用于某些固定搭配： in front of 在……前面 in the end 最后 in time 及时
like ①像……样： He looks like his father. 他像他的父亲。
②这样，那样： Don't look at me like that. 别那样看着我。
③怎样： What's the weather like? 天气怎样。
near 靠近，在……附近： My bed is near the window. 我的床在窗户旁。
of ①的(表示所属关系)： This is a photo of my family. 这是一张我家的照片。
②……的(用于所有格)： He is a friend of mine. 他是我的一个朋友。
③表示数量(与连词连用)： One of us is from Beijing. 我们中有一个来自北京
④想到，谈到： I often think of them. 我常常想到他们。
⑤用于某些固定搭配： of course 当然 because of 因为，由于
on ①在……上面： There are some apple on the tree. 树上有些苹果。
②在(星期)天，在某天的上午(下午，晚上)：On Sunday在星期天 on Sunday morning 在星期天的上午 on March 8 在3月8日
③用于某些固定搭配： on duty 值日 on time 准时
over ①在……正上方： There is a lamp over the table. 桌子上方有一盏灯。
②遍及，穿过： There is a bridge over the river. 有座桥横跨那条河。
③超过，不止： She is a little over 2. 她两岁多了。
to ①到，往，向： He walks to the window. 他走向窗户。
②表示时间、数量， 到……为止 Please count from ten to thirty. 请从10数到30.
③向，对，给： Happy New Year to you all. 大家新年好。
under What's under your desk? 你书桌底下是什么?
with ①和，写： Could you go home with me? 你能和我一起回家吗?
②表示伴随状态，带有： Who's that girl with glasses? 那位戴眼睛的女孩是谁?
between ,among ,around
①between:在两者之间 The school is between the bank and bookstore.
②among:在三者或者更多的之中There are some American students among us .
③around:环绕，在…..的周围，在……的四周
They arrived at a zoo with high mountains all around it .他们到达了四周有高山环绕的山\
in front of , There is a car in front of the house .房子前面有一辆小汽车。?
along ,across ,through
①along:沿着 Go along Zhongshan Road and turn right at the second crossing .
沿着中山路走然后在第二个十这路口向右拐。
②across:横过(平面物体)
③through:贯通，通过The students walked through the gate
口诀1:
年月周前要用in， 日子前面却不行。 遇到几号要用on，上午下午又是in。
要说某日上下午， 用on换in才能行。午夜黄昏用at， at用在时分前，
口诀2:
in在……里，out在……外，在旁边的是beside，靠近的为by 。
on在……上， under在……下，above在上头， below在底下。
口诀3:
①早、午、晚要用in
in the morning 在早上 in the afternoon 在下午I n the evening 在晚上in the day 在白天
②黎明、午、夜、点与分用at
at dawn, at daybreak 在黎明时候 at noon 在中午 at night 在夜间
at six o'clock 在6点钟 at 7：30 在7点半
③年、月、年月、季节、周用in。
in 1986 在1986年 in April 在四月 in December 1986 1986年12月
in spring 在春季 in summer 在夏季 in autumn 在秋季 in winter 在冬季
小处at大处in
介词练习
1.___ the afternoon of May, we visited the old man. A. On B. At C. In
2.Many people work ___ the day and sleep ___ night. A. on ; at B. in ; in C. in ; at
3.He speaks Japanese best ____ the boy students. A. between B. with C. among
4.He left home ___ a cold winter evening. A. at B. on C. in
5.Shanghai is ____ the east of China. A. in B. on C. to
6.I really can’t agree ____ you. A. to B. on C. with
7.The shop won’t open ___ nine in the morning. A. until B. at C. during
8.How about ___ the flowers now? A. watering B. are watering C. watered
9.She spent all his money ___ books. A. in B. with C. on
10.What will you have ___ breakfast this morning? A. with B. for C. by