介词介词是表示名词，代词和句中其他词之间关系的词，主要表示地点，位置，时间和方式等。
What can you see in the picture 你在照片里看到了什么I was born on May 11th. 我出生在5月11日。
The library is near the post office. 图书馆在邮局附近。
常用介词及用法表示时间的介词。
英语里最常见的时间介词有：at, in , on, before, after和from.at, in 和on 都表示时间。
at 指具体的时间点。
at half past seven. 在七点半。
at eleven o’clock at noon （中午）at that time （那时）in 一般指某一段时间。
in April 在四月份in themorning/afternoon/evening. In 2013 , in May, 2005（在2005年五月）; in three days（三天之后）; in Spring; in the 21st century（在21世纪）on指在具体的某一天。
on Sunday. 在星期天。
On April,1st 在四月一日on Sunday afternoon 在星期天的早上on a warm morning in April (在四月的一个温暖的早晨) on New Year’s day(新年) (2) before 和after 表示时间的先后顺序。
before 表示“在…..之前”Wash your hands before dinner. 饭前要洗手。
I have to finish my homework before 10 o’clock..我不得不在十点之前做完作业。
after 表示“在….之后”，They often play football after school. 他们放学后经常踢足球。
My father often watches TV after dinner.我爸爸经常在晚饭后看电视。
from 表示时间时，常和to 连用，构成from…to…的结构，表示“从…..到…..”的意思。
He kept on working from seven to twelve last night. 他昨晚从起点到12点一直在工作。
I go to school from Monday to Friday.表示方位的介词。
小学阶段常见的方位介词有on, in, at , under, over, above, below, about, around, between 等。
(1) on , over 和above 相同点：三者均有“在….上面”的意思。
不同点：on 表示两个物体的表面相互接触。
—Where is the pen —It’s on the box over 表示“在….的正上方”，两个物体的表面没有接触。
above 表示两个物体中一个在另一个的上方，但不一定垂直，两个物体间也没有接触。
There is a book on the desk. 桌子上有一本书。
The sky is over our heads. 天在我们的头顶上。
The plane is flying above clouds. 飞机在云上飞行。
(2) under 和below 相同点：两者均表示“在….的下面”的意思。
不同点：under 表示“在….的正下方”，其反义词是over.over underThere is a ball over two boxes. There is a ball under a boxThere is a bridge over the river.河上有座桥。
below 表示“在…..的下面”，但只是低于某一点，不强调是否在正下方。
From the top of the hill, we could see the blue ocean below. 我们从山顶上能看到下边的蓝色大海。
The dead sea is below sea level. 死海的海面低于海平面。
in 表示位置，意为“在…里面”，也可以用来表示在一个很大的空间内。
Mary works in a bank. 玛丽在银行工作。
There isn’t a cloud in the sky. 天空中没有一片云。
What’s in the box He put his hands in his pockets. 他把手放入口袋。
at 表示“在某地点”。
I will wait for you at the station. 我将在车站等你。
around 和about 均表示“在…周围”。
They sat around the table. 他们围着桌子而坐。
We walked about the town. 我们在镇周围走。
(6) behind 表示“在…..的后面”。
There is a broom behind the door. 门后边有一把扫帚。
(7)in front of 表示“在……的前面”。
There is a new white car in front of the house. 那房子前面有一辆白色的新轿车。
(8)between 表示“在两者之间”。
My bedroom is between my two sisters’. 我的卧室在两个姐妹的卧室之间。
(9)表示“在某地”时，at后面接小地方，in后接大地方。
如：at home 在家at the bus stop在汽车站in China在中国in the world在世界上3. 表示动向的介词。
在英语钟，有一类介词表示一种动态的移动，有“朝着……”和“向着……”的意思。
小学阶段常见的动向介词有into, out of, up, down, from, to, across, through, along等。
into 和out of Into表示“从外向里”的意思；out of 表示“从里向外”的意思。
I saw them go into the house. 我看见他们进了那间房子。
Lily ran out of the classroom. 莉莉跑出了教室。
up 和down up 表示“向上”，down 表示“向下”。
We climbed up the mountain to the top. 我们爬上了山顶。
She opened the door and went down the stairs. 她开了门下楼去了。
across 和through相同点：两者都表示“通过，穿过”的意思。
不同点：across.[ə'krɔs] 表示“穿过”这一动作在某个物体的表面进行。
He walked across the road carefully. 他小心地穿过马路。
The duck is swimming across the river. 这只鸭子正在游过河。
He is swimming across the pool. 他正在游过游泳池。
through.[θru:] 表示“穿过”这一动作在某个物体的空间内进行。
She walked through the forest alone. 她独自一人走过森林。
The train is going through the tunnel(隧道)。
这辆火车正在穿过隧道。
He wants to climb into the room through the window. 他想从窗户爬进房间。
表示方式的介词表示方式的介词主要有by, with, in 等。
by表示“靠，用”。
My mother goes to work by bus. 我妈妈乘公共汽车上班。
with表示“使用，和….一起；有，具有，带有”。
He cut the cake with a knife. 他用小刀切开了那个蛋糕。
in 表示“用某种语言，以某种方式”。
She can speak in Japanese.基础训练将下列词组翻译成汉语。
on the farm _______________ 2. by train ______________the boy in white_____________4. after school___________________ 5. under the night____________________ 7. in front of the classroom_________________________on Saturday morning__________________behind the tree_______________________10. near the river__________________________选择括号内恰当的介词填空。
Children’s Day is _____________(at /on / in) the 1st of June.The girl _____________(with / on / in) long hair is my sister.Tom doesn’t do well _________( at / on / in) math.Look at the monkeys ____________(between / on / in) the tree. We have skirts _________(under / behind / in) red, green and white. What color do you likeTom sells his computer game____________(with / for / to) me. She is a friend ________(of / to / on) my sisters’.Here’s a nice picture ___________( with/ to/ for) you .Please call me ____________( at/ to/ with) .What’s this _________( at, on, in) English二单项选择( ) 1. —What’s this _________ English —It’s an apple.on B. in C. at D. of( ) 2. Lily, can you go shopping ______ menear B. at C. with D. from( ) 3. English is spoken ________ American.in B. at C. by D. with( ) 4. It often rains _______ June.of B. in C. at D. on( ) 5. They are waiting for a bus _________ the bus stop.in B. to C. on D. at( ) 6. —What did you do _______ the farm —We planted some trees for the farmers.on B. in C. at D. to( ) 7. The girl ________ white and red is my sister Kate.for B. of C. in D. with( ) 8. The waterway (运河) is wide enough for many ships to pass_________.above B. across C. cross D. through( ) 9. Write the numbers _______ 10 ________ 30 on the blackboard.A. from; inB. between; andC. behind; andD. among; in ( ) 10. The children are planning__________ their class project.A. ofB. forC. withD. about( ) 11. Tom was born _______ April the 1st, and I was born _______ April, too.in; in B. in; on C. on; in D. on; on( ) 12. Is Polly ________ the treeat B. in C. on D. after( ) 13. Does your mother cook _______ you _____ the weekendA. for; onB. for; atC. with; onD. to; at( ) 14. I get up ______ about seven fifty five.in B. on C. at D. for( ) 15. It’s cold ________ winter in ShenYang.at B. in C. on D. to( ) 16. What’s wrong ________ your bikein B. on C. at D. with( ) 17. Thanks _________ your help.to B. for C. in D. on( ) 18. I know the name _______ the girl.in B. on C. of( ) 19. —Is his book ________ the drawer—No，it’s _______ the desk.in, in B. on, on C. at, on D. in, on( ) 20. Bob was born _______ May 12th , 1999.in B. at C. on D. mustn’t三根据汉语意思，完成句子。
