情景对话：A:New York Police Station. Can I help you?
B：Yes. It's about my daughter, Mandy. She went to school this morning, and she hasn't arrived yet, and it's eleven o'clock and...
A:Just a moment, Mrs. . . ？
B; 61
A: How old is Mandy?
B; 62
A: And what does she look like?
B: 63
A: And what's she wearing?
B; 64
A: We'll do our best to find her. We'll telephone you as soon as possible. B; 65
A: You're welcome.
介词
介词一般用于名词或者代词前，表示该词与句子其他成分的关系。介词后面的名词或代词称为介词宾语。介词和介词宾语一起构成介词短
语
1．表示时间的介词：at, in, on, before, to, from, by, till, until, after, for, since 等。
2．表示地点，位置，方向的介词：next, to, in, in front of, on , out of, at, above, over, into, near, between, under, up, across, by, down, from, around, behind, beside等
3．表示原因，理由的介词：for, as, at, from 等
4．表示方式的介词：on, in, by, with 等
In the morning/afternoon/evening 用于月、年、季节等。In March, in 1986, in spring
用于一段时间后。In a week, in a year’s time, in two hours
, 用在将来时态中., 常回答how soon的提问My mother will come back in three or four days.
There are six windows in the wall.墙上有6 扇窗子
用于具体某一天。On my birthday, on the morning of next Friday, on June 6, on Sunday, on New Year’s Day
用于描述性的时间。On a cold night, on a winter day
on 表示通过媒介, on the telephone, on the radio, on TV
on可指“在…之上”: There are five pictures on the wall.墙上贴着5 幅画
用于具体的钟点。At 12 o’clock, at half nine
用于固定的搭配。At lunch, at night, at breakfast, at noon, at Christmas, at weekends, at that time
用于地点：at the end of Park Road, at the first crossing, at the back of the classroom,
其他固定搭配：at the party, be good at, at the age of
at是小地点: I arrive at school.
表示在一点时间以后。After twelve o’clock；
在什么之后：after school/ after work/ after lunch
, 相当于一段时间+ later ，He arrived after five months. = He arrived five minutes later.，
1）on , over, above指上方；under, below指下方；on指物体接触。
2）over指正上方、above指斜上方、under指正下方、below指斜下方。There will be two bridges over the river.河上将有两座桥。
④, Between指两者之间I’m sitting between Tom and Alice , among指三者或三者以上。He is the best among the students.
⑤Across表示从这一边到另一边的横过, over表示从空间通过, through则表示从内部空间穿过。Can you swim across the lake? 你能游泳过湖吗？
⑥With后跟工具, I can write with a pen. 我能用笔写
by跟某种方式，手段或泛指某种交通工具, 或跟V-ing形式。He learned Japanese by listening to the radio.
⑦看似相同，但意义有别的词组。At school 在上学At the school 在学校In front of 在…前边（外部）In the front of 在…前部（内部）In class 在课上In the class 在这个班In bed 在睡觉In the bed 在床上In hospital 住院In the hospital 在医院里Go to school 去上学Go to the school 去学校
⑧介词和其他词类的习惯搭配关系
(1) 和动词的搭配，如agree with, ask for, belong to, keep away from, care about , look for, look at, listen to, talk about, look like,等。
(2) 和形容词的搭配，如afraid of, angry with, different from, good at
(3) 和名词的搭配，如answer to , key to, reason for, visit to等
in the tree ,指动物或人等外来的东西在树上，on the tree ,指果实或叶子等树本身长出来的东西
用By，with，in，on填空
1. I sent the message to him _________email.
2. The pupils write _________pencils.
3. Do you know the meaning of word _______Chinese ?
4. The man climbed up to the tree _________a ladder.
5. They solved the problem _________ communicating.
6. The woman was crying ________a low voice.
7. The old man often gets news ______the radio..
8. We often cut things _________a knife.
9. He improved his writing skill ________keeping diaries.
10. My grandpa can sing some songs _______Russian.
1. The plane arrived at London airport ______ Wednesday.
A. on
B. at
C. in
D. for
2. What do you usually do ________ Christmas?
A. on
B. at
C. in
D. for
3. The first class begins _______ 8 o’clock ______ the morning.
A. at/on
B. at/in
C. on /in
D. on/on
4. ________last Saturday, we had had two football matches
with Class Two.
A. For
B. /
C. By
D. During
5. We will be in Nanjing _____ Tuesday ______Thursday.
A. on/ through
B. on/to
C. from/to
D. on./till
6. Mr Black will visit our new school building ______ two days.
A. before
B. after
C. at
D. in
7. _______ the end of last spring Wang Hai joined the army _______ the end.
A. At/at
B. By/in
C. In /at
D. At /in
8. We will have a football match _____ this Saturday afternoon..
A. on
B. /
C. in
D. for
9. He came to see you _____ the evening of May 10th
A. in
B. at
C. on
D. for
初中英语介词专项练习题 1 ( ) 1 Children get gifts ____ Christmas and ____ their birthdays. A. on; on B. at; on C. in; in D. in; on ( ) 2 -There is nothing ____tomorrow afternoon, is there? -No. We can have a game of table tennis. A. on B. in C. out D. up ( ) 3 A lot of students in our school were born____March, 1981. A. in B. at C. on D. since ( ) 4Tim suddenly returned____ a rainy night. A. on B. at C. in D. during ( ) 5My grandfather was born____Oct. 10, 1935. A. on B. In C. at D. of ( ) 6The train is starting___five minutes. A. In B. At C. For D.still ( ) 7Mike does his exercises ____ seven _____ the evening. A. on; to B. at; in C. by; of D. at; on 2 ( ) 1 The population of the world has grown very fast ____ four hundred years. A. for past the B. in the pass C. in the past D. for past ( ) 2 We returned to our hometown___. A. next week B. in the last week C. last week D . for a week ( ) 3 Great changes have taken place___. A. in the last few year B. in the last few years C. last year D. on the last year 3 ( ) 1 Children wake up very early____the morning of Christmas Day. A. in B. on C. for D. at ( ) 2 ____ a cold winter morning, I met her in the stfeet. A. In B. On C. At D. For ( ) 3 It happened to be very cold____ the morning of our sports meet. A. at B. on C. with D. of ( ) 4 Why did you get up so early ___ this morning. A. on B. / C. at D. in 4 ( ) 1 He went to Shanghai___ September 3, 1991 and came back___ a cold morning last year. A. in; on B. on; in C. on; on D. in; ia ( ) 2 Lucy was born____ the night of May 12, 1984. . ... A. on B. in C. at D. to ( ) 3 Mrs Brown came to China ____ 1996.
语法专练(方位介词)1.基础练习 一、方位介词in,on,beside ,under ,above next to ,in front of ,behind ,between 选词填空 1.Beijing is______the north of China . 2.The twins usually stand ____their parents ,and their parents are in the middle . 3.There is a map of China __________ the wall of our classroom. 4.Before 2000,there was no airline _________the two cities. 5.The boy sitting __________Tina,so she couldn’t see the film clearly. 6.She will leave her homework __________ the teacher ‘s desk after school today. 7.You must ride your bike ___________ the right side of the road. 8.Me Smith lives __________ that building.His house is ___________ the fifth floor. 9.There was an exciting moment in our class when a large bird flew _____ the room. 10.The boy is taller than his friend,so he sits ___________ him in the classroom. 11.The flowers are ________ the vase on the desk. 12.She is the tallest one.She always sits ________ the back row. 13.He put a painting on the wall __________ the sofa. 14.The teacher’s desk is __________ the front of the classroom. 二、选择题 ( ) 1 The boat is passing___ the bridge. A. through B. below C. under D. across ( ) 2 Two planes are flying___ the city. A. through B. over , C. on , D, below ( ) 3 We can see a river running to the east____ the hill. A. under B. below C. over D. on ( ) 4 Do you see the kite ___ the building. A. over B. cross C. on D. above
介词（表时间地点） 一、知识回顾 介虚，不能独充当句子成分，必同名、代、短、句子构成介短， 才能充当句子成分。介短在句中常作表、定、状和足。 常用表式地点的介介 （一）表示的介： 1． at, on, in (1)at 表示“在某一刻、某一点” at 5:30 在5:30 at sunrise 日出at lunch 午 at noon 正午at night 夜 I get up at 6:00 every day.我每天6:00起床。 表示“在??” 用at the age of。? 如： at the age of five 在五 (2)on 表示“在具体某一天或某天的上、下午”。如： on Monday 在星期一on April 1st 在四月一日 I heard a shot on the morning of March 18. 三月十八日早晨我听到一声响。 泛指上、下午、晚上、夜用in the morning/afternoon/evening, at night；但若指具体某一天的上述段，一律用on。 如： on the afternoon of May 23在五月二十三日下午 (3)in 表示“在某月、季、年、世”以及泛指的上、下午、晚上。 in September 在九月in winter 在冬季 in 1999 在 1999 年in the 20th century 在 20 世 in the morning/afternoon/evening 在上午 /下午 /晚上 2． for, during, through (1)for 表示“一段”，后接与数用的名。多与完成用。 I ’ve been a soldier for 5 years我.入伍已 5 年了。 She has been ill for several days. 她已病了几天了。 表示“持一段” ， for 后面必跟“数字 +名”，而 during 后决不可接数字。 (2)during 表示“在??期” He visited many nice places during his stay here. 在他逗留期他参了多美的地方。 What did you do during the summer vacation?你在暑假做了什么？ (3)through 表示“一直??，自始至” They worked hard through the winter. 整个冬天他都在努力工作。 She treated me like her brother through these years. 些年来她始把我当哥哥待。 3． from, since (1)from 作“从??”解，多用于“ from ? to/till 中。?”
【语法全解】：时间介词（in, on, at） 【典句探究】 1. On Friday, what time is your Chinese? 在星期一，你们几点上语文课？ 2. we don’t have history in the afternoon. 我们下午没有历史课。 3. I like the lessons on Monday afternoon.我喜欢星期一下午的课。 4. We have art at ten o’clock我们在十点钟上美术课。 以上例句中，1句中的on用在星期名称前; 2句中的in 用在泛指的下午前; 3句中的on用在具体日子的下午前; 4句中的at用在具体的钟点时间前。 【语法全解】 常用的时间介词有in，on和at。 1. in表示“在一段时间内或一天内的部分时间”，用于世纪、年、季节、月、一段时间或泛指的一天中的上午、下午、晚上等前面。 I was born in March，2002.我出生于2002年3 月。 We have four classes in the morning. 我们在上午上四节课。 2. on表示“某一天或某一天内的部分时间”，用于星期名称、节日、具体的某一天或具体日子的上午、下午、晚上等前面。 I do my homework on Saturday morning. 我在星期六上午做家庭作业。 They will get here on July 20. 他们将在七月二十日到达这儿。 3. at表示“某指定时间”，用于钟点时间前，也可用于一天中的某段特定时间，如黎明(dawn)、中午(noon)、黄昏(dusk)、午夜 (midnight)等。 Classes begin at eight o’clock 八点钟开始上课。 They stay at home at noon.他们中午待在家里。 [表格助记]
初中英语介词专项训练100(附答案)及解析 一、初中英语介词 1．—Taiwan is an important part of China． —Yes，it lies ______the southeast of China. A. in B. on C. to 【答案】A 【解析】【分析】句意：台湾是中国的一个重要组成部分。当表示方位时，in表示在…范围内；to表示不接壤，常指隔海相望；on表示相邻并接壤．台湾是属于中国的，故答案为A。 【点评】考查介词辨析，注意方位介词in，on，to的用法。 2．My brother joined the army ________ September last year. A. on B. by C. at D. in 【答案】 D 【解析】【分析】句意：我哥哥去年九月参军。on后接具体的日期、星期和节日；by后接方式；at后接时间点、时刻；in后接某年某月；September，9月，因此前面用in，故选D。 【点评】此题考查介词。注意表示年月动名词前用介词in。 3．The People's Republic of China was founded ________ October 1st, 1949. We'll celebrate its 70th anniversary this year. A. in B. on C. at 【答案】 B 【解析】【分析】句意：中华人民共和国成立于1949年10月1日。今年我们要庆祝它70周年。A.in在，用在世纪、年、季节、月、周等前；B.on在，用于星期几和具体的日期等前；C.at在，用于表示时刻前。根据句子中 October 1st, 1949，表示具体的日期，要用介词on。 【点评】考查介词辨析。根据句子的语法结构选择正确的介词。 4．Let's take a walk ________ the river after diner, shall we? A. along B. through C. upon D. over 【答案】 A 【解析】【分析】句意：让我们晚饭后沿着河流散步吧，好吗？A.沿着；B.穿过；C.根据； D.在......正上方。根据常识可知沿着河流散步，along the river，沿着河流，固定搭配，故选A。 【点评】考查介词辨析，注意平时识记其词义，理解句意。 5．John often takes a walk _______ his grandpa after dinner.
语法（五）—介词 Ⅰ，介词的相关概念和用法： 1，介词的概念：介词是一种用来表示词与词、词与句之间的关系的虚词，起“媒介”作用。2，介词后加宾语，即名词或代词性质的词。 例如：I am in school . in the morning 例如：Thanks for helping me . What about going for a walk ? 3，介词的分类： ①，时间介词；②，地点介词；③，方式介词；④，目的介词；⑤，原因介词； ⑥，运动方向介词；⑦，比较介词；等等等等。 Ⅱ，介词的分类： 一、表示时间的介词——常考的时间介词有at, in, on“在……” 1. at表示“在某一时间点”，或用来表示不确定的时间和短期的假日、时节等。 如：at six o’clock, at Easter 2. in表示“在某一时间段”，如用在月、季、年份、时代、世纪等。如： in July/summer/2000/ancient times/the 1999’s in the morning/afternoon/evening 表示在特殊或具体的日子。如： on Saturday, on Saturday morning, on the morning of August 1st , on Mid-autumn Day 4.注意：当表示时间的名词前，有this / last / next / every时，前面不需要加介词。
【小练习】： There are four seasons _________ a year. What do you wear _________ winter? We have no classes _________ Sundays. My birthday is _________ September. My birthday is _________ June 18th. ( （） 1 Children get gifts ____ Christmas and ____ their birthdays. A.on; on B. at; on C. in; in D. in; on ( ) 2 -There is nothing ____tomorrow afternoon, is there? -No. We can have a game of table tennis. A. on B. in C. out D. up ( ) 3 A lot of students in our school were born____March, 1981. A. in B. at C. on D. since ( ) 4 Tim suddenly returned____ a rainy night. A. on B. at C. in D. during ( ) 5 My grandfather was born____Oct. 10, 1935. A. on B. in C. at D. of ( ) 6 The train is starting___five minutes. A. in B. at C. for ( ) 7 Mike does his exercises ____ seven _____ the evening. A. on; to B. at; in C. by; of D. at; on ( )8She will come back _______ next week. A. in B. at C. on D./ ( )9They played basketball _______ last night. A. in B. at C. on D./
介词教师用 介词是一种虚词，它不能单独担任句子成分，必须与名词或代词或相当于名词的其他词类、短语或从句构成介词短语，才能担任句子成分。 1、介词的种类 介词由词形上可分为简单介词和短语介词。 简单介词知识一个单词，如：in，on，after等。 短语介词是由两个以上单词集合而成，如：out of，in front of，because of，instead of等。 1、表示时间的介词 表示“时间”的介词如下： ①表示年、月、日、时刻等用at，in，on ②表示时间的前后用before，after ③表示期限等用by，until，till ④表示期间等用for，during，through ⑤表示时间的起点等用from，since ⑥表示时间的经过等用in，within （1）at，on，in A.at：用于表示时刻、时间的某一点 at lunch在午饭时at breakfast早餐时at noon正午时at that time那时 at night在夜间at the moment此刻，目前at present目前at nine（o’clock）在九点钟at first开始的时候，起初at/on the weekend在周末at last最后at the same time同时at times偶尔，有时at the end of 1999在1999年末at this time of（the）year在一年中的这个时候 We usually have lunch at noon/ at twelve.我们通常中午吃午饭（十二点吃午饭） 注意：表示时间的名词前有this，last，next，every等修饰时，其前面不加介词。this morning今天早上；last Monday 上周一；every week每周 B.on用于表示某天，某一天的上、下午（指具体的某一时，一律用on） on Monday在周一 on Tuesday morning在周二早上 on June 6在6月6日 on May 4,1996在1996年5月4日 on a cold night在一个寒冷的夜晚 on that day在那天 on Christmas Day在圣诞节那天 on time准时 on Monday evening在周一晚上 on the night of July（the）first在七月一日的夜晚 we didn’t listen to the lecture on Wednesday afternoon.周三下午我们没去听演讲。 C.in用于表示周、月、季节、年和泛指的上午、下午、晚上（指在一段时间内）。 in the week在这周in the holiday在假期中in May 在五月in summer在夏季 in Spring在春季in autumn 在秋季in 1995在1995 in winter在冬季 in September，1995在1995年9月 in the morning在上午 in the afternoon在下午 in the evening在晚上 in the 21st century在二十一世纪 in time及时in an hour一个小时后in a minute一会儿，立刻 Jack was about to lock the door when just in time he remembered his key. 杰克正要锁门，忽然（正在那时他及时）想起了他要拿门钥匙。
英语时间介词的用法 表示时间的介词 1)in ,on, at 在……时 一.in, on在方位名词前的区别 1.in表示A地在B地范围之内.如： Taiwan is in the southeast of China. 2.on表示A地与B地接壤、毗邻.如： North Korea is on the east of China. 二.at, in, on在表示时间上的区别 1.at指时间表示： （1）时间的一点、时刻等.如： They came home at sunrise （at noon, at midnight, at ten o’clock, at daybreak,at dawn）. （2）较短暂的一段时间.可指某个节日或被认为是一年中标志大事的日子.如：He went home at Christmas （at New Year, at the Spring Festival, at night）. 2.in指时间表示： （1）在某个较长的时间（如世纪、朝代、年、月、季节以及泛指的上午、下午或傍晚等）内.如： in 2004,in March, in spring, in the morning, in the evening, etc （2）在一段时间之后.一般情况下,用于将来时,谓语动词为瞬间动词,意为“在……以后”.如： He will arrive in two hours.
谓语动词为延续性动词时,in意为“在……以内”.如： These products will be produced in a month. 注意：after用于将来时间也指一段时间之后,但其后的时间是“一点”,而不是“一段”.如： He will arrive after two o’clock. 3.on指时间表示： （1）具体的时日和一个特定的时间,如某日、某节日、星期几等.如： On Christmas Day（On May 4th）,there will be a celebration. （2）在某个特定的早晨、下午或晚上.如： He arrived at 10 o’clock on the night of the 5th. （3）准时,按时.如： If the train should be on time,I should reach home before dark. 三.at,in和on表示地点时的区别 1.at表示地点： （1）用于指较小的地方.如： I shall wait for you at the station. （2）用于门牌号码前.如： He lives at 115 Zhongshan Road. 2.in表示地点： （1）用于指较大的地方.如： He lives in Shanghai. （2）虽然是很小的地方,如果说话人住在那里,也可用in.商店、学校、机关等,
介词 一．概念：介词用来表明名词与句中其他词的关系，介词是虚词，不能独立充当句子成分介词短语能够充当句子成分, 介词短语= 介词+介词宾语（名词、宾格代词、动名词等充当） 二、常用 1、in 在......之内 1) 表示地点，表示大地点。She’s in China with her mom and dad. 2)表示时间，表示在某一个时间段内The weather is cold in winter. 3) 表示颜色和语言也用介词in。 Do you know the girl in red? I can write this article in English. 2、from 从......中来 1) come from I come from China and I’m Chinese. 2) download from I download music from the Internet. 3) be different from Lily’s habits are different from Linda’s. 3. with 和，用，与 1) with sb 和......人在一起I’m in Class One with Daming and Lingling. 2）with sth. 表示用某种工具I write with my pen, and I see with my eyes. 4. at 在...... 1) 表地点，主小地点。My father is a teacher at Beijing International School. 2) 表时间，主指时间的一个点。I get up at half past seven in the morning. 3) be good at 擅长于...... I am good at reading and writing. 5. behind 在......后面The classrooms are behind the offices. 6. next to 紧挨着The library is next to the classrooms. 7. in front of 在......前面They are in front of Tony and Daming. 8. for 为了......，因为。。。。Thank you for your email. 9. on 在......上，在......时 1）表示时间，表示具体的一天。Would you like to go to a football match on Sunday? 2）表示地点on the farm on the playground 10. to 自，向 1）talk to 与......谈论We have a break and I talk to my friends. 2) go to 去He likes films and he often goes to the cinema. 3）welcome to 欢迎到...... Welcome to Beijing Zoo. 4）listen to 听They always listen to music. 5）connect......to .和...连接一起Please connect the monitor to the computer first.
初中英语介词用法总结 介词(preposition)：也叫前置词。在英语里，它的搭配能力最强。但不能单独做句子成分需要和名词或代词（或相当于名词的其他词类、短语及从句）构成介词短语，才能在句中充当成分。 介词是一种虚词，不能独立充当句子成分，需与动词、形容词和名词搭配，才能在句子中充当成分。介词是用于名词或代词之前，表示词与词之间关系的词类，介词常与动词、形容词和名词搭配表示不同意义。介词短语中介词后接名词、代词或可以替代名词的词（如：动名词v-ing）.介词后的代词永远为宾格形式。 介词的种类： （1）简单介词：about, across, after, against, among, around, at, before, behind, below, beside, but, by, down, during, for, from, in, of, on, over, near, round, since, to, under, up, with等等。 （2）合成介词：inside, into, outside, throughout, upon, without, within （3）短语介词：according to, along with, apart from, because of, in front of, in spite of, instead of, owing to, up to, with reguard to （4）分词介词：considering, reguarding, including, concerning 介词短语：构成 介词+名词We go to school from Monday to Saturday. 介词+代词Could you look for it instead of me? 介词+动名词He insisted on staying home. 介词+连接代/副词I was thinking of how we could get there. 介词+不定式/从句He gives us some advice on how to finish it. 介词的用法： 一、介词to的常见用法 1.动词+to a)动词+ to adjust to适应, attend to处理；照料, agree to赞同, amount to加起来达…， belong to属于,
初中英语介词专项讲解及练习(包含答案) -CAL-FENGHAI.-(YICAI)-Company One1
一．介词的含义 介词是一种虚词，用来表示名词或相当于名词的其它词语与句中其它词的关 系，不能单独使用。介词可以与名词或相当于名词的其它词构成介词短语。 二．表示时间的介词 at (表示钟点): at 6：30 固定搭配 : at noon ; at night ; at present / at the moment in (表示年代/月份/季节): in July; in 2006; in September，1998 ； in spring 固定搭配: in the morning / in the afternoon / in the evening on (表示具体日期: 某月某日/星期几): on Monday ; on Sunday morning ; on December 17 before在 --- 之前after 在--之后 by在--之前（时间）；到--为止until / till : 直到 --（时间） since自从 -- 以来for（接一段时间） during 在 -- 期间from 从--时起 in + 一段时间： --以后（用于将来时）within --之内 after+ 一段时间：--以后（用于过去时） beyond --之外 三．表示场所，方向的介词 at 在某处（小地方）（at the cinema； at school； at home； at the railway station） in 在某处（大地方）（in China； in Beijing）；在--里面（in the classroom； in the water） on 在--上面（紧贴着其表面）: (on the table; on one’s face) near 在---附近 beside：在--旁边by 在--旁边 between在--和--之间among在--（3者或更多的人或物）当中 in front of 在--的前面behind 在--的后面 beside: 在—旁边 into 进入--里out of 从--中出来 near / nest to 靠近 across穿过（沿着表面）through穿过（从中间）along 沿着 from -- to -- 从--到-- around 在--周围 over 在--的正上方under在--的正下面 / above 在--斜上方below 在--斜 下方
初中介词讲解 课标要求了解及掌握介词的基本用法，能够辨别介词词组的意义与区别，并且，要求学生可以在具体的语言环境中准确运用介词的用法。一，考纲要求 1、掌握常见介词的基本用法，如表示时间，方位，方式的介词的基本用法 2、介词构成短语的意义，用法，及意义的区别。 2、命题趋势：介词的基本用法中的表示时间的介词；介词短语的固定搭配在选择题，完型题中的考查。二，考点表示时间，地点及方式的介词基本用法；基本固定介词短语的用法，及易混词组的区分。三，介词知识精讲 1、概念介词（虚词），不能在句子中独立充当成分。它总是用于名词、代词、或相当于名词的其它词类或短语活从句前。 中考需要掌握的11 个介词：in、on、at、to、from、by、with、for、about、after、before 表示时间的介词。 2、介词的句法功能 A、作定语：The book on the table is mine、 B、作状语：We have breakfast at seven、（表时间）；They were late for meeting because of the heavy rain（表原因）； They started the machine by pressing the button、（表方法）
C、作表语：My dictionary is in the bag、 D、作宾语补足语：I found him in the office、3、介词基本用法 A、表示时间的介词in表示年、季节、月份、周，或泛指上午、下午或晚上；on表示某一天，某一天的上午、下午或晚上；at表示某一时刻或时间上的某一点。at表示具体“钟点”时间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 August8th,全文结束》》on the night of National Dayon a rainy eveningin用于世纪、年、季节、月in the21st century / in全文结束》》in spring / in January表示在一段时间以后in a week（一周以后）固定用法in the morning / afternoon / eveningAt noon; at nightat noon / night / midnightin 的第二种用法。表示“在一段时间以后”：in， after 两者区别：I will come back in a week、我一周后将回来。I came back after a week、我一周后回来了。“in+时间段”表示将来时（用在表示将来时的句子中）；“after+ 时间段”表示过去时（用在表示一般过去时态的句子中）。例题：“What do think Joe will be _____ five years?” “He will be a policeman、” B、表示方位的介词表位置时：
具体日期前用“on” 注意: 一、含有this, that, these, those, every, each 等的时间状语前不用介词。如： We are going to play football this afternoon. 今天下午我们打算踢足球。 His father goes to work early every day. 他爸爸每天很早去上班。They are working on the farm at the moment. 这几天他们正在农场干活。 二、all day, all week, all year 等由“all +表示时间的名词”构成的时间状语前不用介词。如： We stay at home and watch TV all day.我们整天呆在家里看电视。 三、由“some, any, one等＋表示时间的名词”构成的时间状语前不用介词。如： We can go to the Great Wall some day. 有一天我们会去长城的。 四、时间状语是today, tomorrow, tomorrow morning, tomorrow afternoon, tomorrow evening, the day after tomorrow (后天)等，其前不用介词。如：
What day is it today?今天星期几？ Who's on duty tomorrow? 明天谁值日？ MORE: at 表示时间的某一点 （节日或年龄、瞬间或短暂的时间） Your memory is always poor at this time. （表示一天中的某个时刻不用冠词） I got up at six in the mopning. on 表示某日或和某日连用的某个时间段 You were late on Monday last week. in 用于表示除日以外的某一时间段 （表示年、月、季节、世纪时代） Sorry, I am late, the frist time in May. in和at都可表示地点，而in表示的地点比at所表示的地点大
新人教版三年级英语下册教案Unit-4--Where-is-my-car
Unit 4 Where is my car? 单元概述 教材解读 本单元学习的主题是描述物品的位置，主情景图通过孩子们蒙上眼睛猜物品位置的活动呈现了本单元的核心句型和词汇。除此之外，还提供了Zoom和Zip捉迷藏的活动。通过一系列的展示与活动，学生能够掌握句型Where is…? It’s in/on/under…询问物品位置并回答。Is it in/on/under…? Yes，it is./ No，it isn’t.不确定物品位置回答。学生能够听说、认读on，in，under，chair，desk，cap，ball，car，boat，map，toy，box，并能把这些单词套用在本单元句型中练习使用。学生能够掌握元音字母o在单词中的短音发音/?/。
单元目标 一、知识与技能 1.学生能够听懂，会说Where is…? It’s in/on/under… Is it in/on/under…? Yes，it is./ No，it isn’t.并能在实际情景中进行运用。 2.学生能够听说，认读on，in，under，chair，desk，cap，ball，car，boat，map，toy，box 等。 3.学生能够掌握元音字母o在单词中的短音发音/?/。 二、过程与方法 教师使用挂图或投影仪展示主情景图，利用Zoom和Zip捉迷藏的情景，根据图中Zip 的位置，对学生提问，引出本单元句型Where is…?然后通过猜张鹏汽车的位置和John地图的位置，激活学生已有的相关知识与生活经历，帮助学生了解本单元的主要学习内容。 三、情感态度与价值观 养成自己收拾书包、玩具的好习惯。
时间介词in / on / at / for / from…to / since / during 关于时间的介词 On 表示星期几，具体的某一天和某一天的上午，下午，晚上，意味在、、、、 On Sunday 在星期天 . On May 2nd在5月2日 On Monday evening 在星期一晚上 In 参与上午、下午、晚上等词连用，构成固定短语；参与月份，季节，年份。 In August 在八月in summer 在夏天in 2012 在2012年 In the morning in the afternoon in the evening At 表示在某一个具体的时间，或表示在一个节假日期间 At six 在六点at night 在晚上 At spring festival 在春节at the weekend 在周末 at mid-autumn festival 在中秋节 1. in表示在某段时间 Year / month / season / morning / afternoon / night / day / century In summer In the morning In April In 2012 In 19century 2. on表示具体某一天或具体某一天的早上，下午，晚上或一般节日等 On May 1st On a sunny morning On Mother’s Day I will call you on Sunday. 3. at表示在具体的时刻, 钟点，夜里，中午，或某些词组中 At six o’clock At night
初中英语语法专项练习八——介词 一．选择填空： 1．Mrs. Brown came to China ____ 1996. A．from B．of C．to D．in 2．The room was full ____ smoke after the big fire. A．of B．with C．in D．for 3．Here are some presents ____ you ____ our best wishes. A．to; with B．for; with C．of; about D．for; for 4．Both Mr Green and Mrs Green were born ____ June, 1956. A．in B．at C．on D．for 5．The little boy is always interested ____ science. A．with B．by C．in D．at 6．Li Lei often gets up ____ seven o'clock on Sundays. A．on B．in C．at D．for 7．They arrived early ____ a Tuesday morning. A．on B．at C．in D．of 8．Macao（澳门）will return to our motherland ____ December 20th, 1999. A．on B．at C．in D．for 9．----When were you born? ----I was born ____ August 25, 1983. A．on B．in C．at D．to 10．Let me show you the place ____ the map. A．with B．on C．in 11．John knows ____ a computer. A．how to use B．how use C．how uses 12．The visitors ____ Japan arrived ____ Beijing Station last Tuesday morning. A．from; at B．of; to C．from; to D．of; on 13．The teacher will be back ____ an hour. A．in B．after C．on 14．This programme was sent to the USA ____ China ____ satellite. A．in; of B．of; in C．from; by D．by; from 15．It's cold outside. Please your warm clothes. A. put in B. take off C. put on D. put up 16．He got many gifts his birthday his friends. A. on, from B. in, of C. at, to D. from, for 17．The classroom is quite different that one. A. of B. from C. with D. like 18．Look, you'll see a bridge the river. A. on B. above C. over D. in 19．–Your coat looks nice, Is It cotton? -Yes. It's Shanghai. A. made of, made by B. made of, made in C. made for, made in D. made from made by 20．Tow may fall the others because he has missed so many lessons. A. after B. behind C. later D. out of 二、用适当的介词填空 1．What's wrong ____ your watch? 2．One ____ the students is in the classroom. 3．I think the shop is closed ____ this time of day. 4．My father teaches English ____ a school. 5．We have lunch ____ the middle of the day. 6．You can buy some school things ____ your way home. 7．I was born ____ July 1, 1982.