初一英语介词用法与练习for1. 表示“当作、作为”。

如:I like some bread and milk for breakfast.我喜欢把面包和牛奶作为早餐。

What we have for supper?我们晚餐吃什么?2. 表示理由或原因,意为“因为、由于”。

如:Thank you for helping me with my English.谢谢你帮我学习英语。

Thank you for your last letter. 谢谢你上次的来信。

Thank you for teaching us so well. 感谢你如此尽心地教我们。

3. 表示动作的对象或接受者,意为“给……”、“对…… (而言)”。

如:Let me pick it up for you. 让我为你捡起来。

Watching TV too much is bad for your 看电视太多有害于你的眼睛。

4. 表示时间、距离,意为“计、达”。

如:I usually do the running for an hour in the morning. 我早晨通常跑步一小时。

We will stay there for two days. 我们将在那里逗留两天。

5. 表示去向、目的,意为“向、往、取、买”等。

如:Let’s go for a walk. 我们出去散步吧。

I came here for my schoolbag.我来这儿取书包。

I paid twenty yuan for the dictionary.我花了20元买这本词典。

6. 表示所属关系或用途,意为“为、适于……的”。

如:It’s time for school. 到上学的时间了。

Here is a letter for you. 这儿有你的一封信。

8. 用于一些固定搭配中。

如:Who are you waiting for? 你在等谁?For example, Mr Green is a kind teacher. 比如,格林先生是一位心地善良的老师。

OF1. ...的,属于One of the legs of the table is broken. 桌子的一条腿坏了。

Mr. Brown is a friend of mine.布朗先生是我的朋友。

prep.…的；属于…的the wall of the garden花园的围墙包含的；容纳的a bag of potatoes一袋土豆a kilo of butter一公斤黄油在其中；…之中的一部分several of my friends我的几个朋友at(1)在某具体时刻之前，如at seveno’clock，at7：30。

(2)在固定短语中，如：at noon，at night，at that time，at the age of at the weekend，at Christmas。

表示地点的at的用法区别(1)at通常指小地方，in一般指大地方。

(2)at所指范围不太明确，in指“在……里”。

withtalk with a friend与朋友谈话learn farming with an old peasant 跟老农学习种田prep.和…一起to live with one's parents和父母同住staying with a friend和朋友在一起with her dog带着她的狗inin是介词，后面必须接名词，代词或者动名词，即doing一、表示时间，意为“在…时期, 在…之后, 在过程中”1.in表示年、月、季节、世纪、时代等。

如：in the eighties（在八十年代）,in spring（在春季）It often rains here in summer.夏天这里常常下雨。

He was born in 1992.他生于1992年。

【注意】（1）当与morning/evening/afternoon连用时，需与定冠词“the”连用。

如：Don't watch TV too much in the evening.晚上看电视不要太多（2）当表示“在某年代或世纪”时，也必须加定冠词”the“。

如：Great changes took place in the twentieth century.20世纪发生了巨大变化2.介词in + 一段时间，一般用于一般将来时。

如：I’ll come back in five minutes. 我5分钟后就回来（以现在时间为起点，表示从现在起多久以后）We’ll go to school in two weeks. 我们两周后去学校二、表地点、位置、范围、空间，意为“在…里面; 在, 于; 在…部位上”1.In表示地点时，后面一般接大地点，如in London,in BeijingGlasgow is in Scotland. 格拉斯哥在苏格兰2.in 表示空间位置时，表示“在…范围之内”。

The ball is in the box. 球在盒子里Shanghai is in the east of China.上海在中国的东方The jok is in poor state.这个笑话处在尴尬的情况中（言外之意是：这个笑四、表示手段，方法，材料，意为“以…(方式)，用…(语言)，用……材料”They paid in cash.他们用现金支付They talked in English.他们用英语交谈。

Please write in pencil,not in ink.请用铅笔写，不要用钢笔写。

The letter was written in French.信是用法文写的。

五、表示服饰等，“穿;戴，带着”，要用介词in，如：The policeman is in uniform.警察穿着制服。

She dresses him in his new clothes.她给他穿新衣服。

六、表示“在…(环境)下”，也需用介词in。

如“在阳光下，在灯下，在树阴下，在雨中……”都用介词in搭配。

We walked in the rain.我们冒雨行走They are playing in the shade of a tree.他们坐在树阴下玩耍Don't write in dim light.切勿在暗淡的灯光下写字On介词小测1. Choice （每题2分，共50分）( ) 1 Children get gifts ____ Christmas and ____ their birthdays.A. on; onB. at; onC. in; inD. in; on ( ) 2 -There is nothing ____tomorrow afternoon, is there?-No. We can have a game of table tennis.A. onB. inC. outD. up( ) 3 A lot of students in our schoolwere born____March, 1981. A. in B. at C. on D. since( ) 4The train is starting___five minutes.A. inB. atC. forD. still( ) 5 Mike does his exercises ____ seven _____ the evening. A. on; to B. at; in C. by; of D. at; on( ) 6 We returned to our hometown___.A. next weekB. in the last weekC. last weekD. for a week( ) 7 Children wake up veryearly____the morning of Christmas Day. A. in B. on C. for D. at ( ) 8 Why did you get up so early ___ this morning. A. on B. / C. at D. in( ) 9 Mrs. Brown came to China ____ 1996. A. on B. of C. to, D. in ( ) 10 Annmoved___Hangzhou___September, 1992. A. /; in B. to; in C. to; on D, in; in( ) 11 He often goes ____ school ____ six thirty ____ the morning.A. for; to; inB. to; at inC. to; for; at D, for; at; to( ) 12 He arrived ___ Shanghai ___ 9:30 ___ March 5. fA. at; in; atB. to; on; atC. in; on; atD. in; at; on( ) 13 The doctor worked___ five hours___ a rest.A. for; withB. on; withoutC. about; havingD. for; without( ) 14 We will finish the picture a day. A. in B. on C. after D. on ( ) 15 The teacher is coming back___ an hour. A. after B. for C. in D. before( ) 16 Miss Wang will come toBeijing____ two days. A. after B. in C. on D. before( ) 17 The plane is flying _____.A. in the skyB. in. the airC. in spaceD.in sky( ) 18 Tom sits____the classroom while John sits____the room.A. in front of; at back ofB. in the front of; at the back ofC. in front of; at the back ofD. in the front of; at back of( ) 19 Lucy sits____ the third row,____Jim's left. A. on; on B. in; at C. at; in D. in; on( ) 20 Jiangsu is___ the east of China, but Japan is ___ the east of China.A. to; inB. in; to .C. on; toD. to; on ( ) 21. -Can I look up a word____ your dictionary? -I haven'tgot____me.A. into; aboutB. in; withC. at; inD. on; on( ) 22 1 like mooncakes ____ meat____ them. A. in; on B. with; on C. in; the D. with; in( ) 23 I saw him___hurry at themoment. A. in a B. in C. on D. on a( ) 24 They are getting ready____fly____ England____their holiday. A. for; to; to B. to; to; for C. for; for; to D. to; to; to( ) 25 They are waiting ___ a bus ___ the bus stop. A. for; in B. on; at C. with; at D. for; at2. 选择适当的介词填空。