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1、表时间的介词at、on、in到底怎么用？ ，今天接着跟大家分享这三个介词表时间的用法、at1、表示时刻，即几点几分with particular points on the clockI ' II see youat five o ' clock .我五点和你见面。 2、表示一天中的某个时间段with particular poi nts in the dayat middayand headed for the isla nd.直升机中午起飞，飞往那The helicopter took off 个岛屿。3、表示一周中的某个时间段，即工作日weekday和周末weekencw
2、ith particular points in the weekWhat are you doing at the weekend ?4、表示某种特殊场合，如名字中不含 day的节假日with special celebrations At the New Year , millions of people travel home to be with their families至U了新年，成百上千万的人会回到家里和家人团聚。 例外情况：如果是说在生日那天，不用at，而用on,因为生日那天是指具体日期，请往下参考 on 的用法。【注意】如果是用 what time 来提问，what tim
3、e 前面一般不用 at。如：What time are you leaving?你几点走？但是在口语中也可以这么问：At what time are you leavi ng?一、on1、用在日期前with dates We moved into this house on 2 October 1997 .我们是 1997 年 10 月 2 日搬进这栋房子的。2、用在星期的单数前 with a singular day of the week to refer to one occasionI ' ve got to go to London on Friday .我周五就至U伦敦了。
4、3、 用在星期的复数前 with a plural day of the week to refer to repeated eventsThe office is closed on Fridays .办公室周五是关门的。特殊情况：口语中有时会省略on，如：Do you work Saturdays ?你周六上班的吗？4、用在特殊日子前with special dates What do you normally do on your birthday ?你生日那天一般都做些什么？三、in1、用在一天中的某个时间段前，一般为固定用法 with parts of the day I '
5、 II come and see you in the morning for a cup of coffee.我上午来看你，一起喝杯咖啡。2、用在月份前with mon ths We usually go campingin July or August .我们常在 7 月或 8 月份去露营。3、用在年份前with years The house was built in 1835 .这座房子是 1835 年造好的。4、用在季节前with seasons The garde n is won derfulin the spri ng whe n all the flowers come ou
6、t.春天里，当所有的花儿都开放时，花园很漂亮。5、用在较长的时间段前with long periods of time The populati on of Europe doubled in the nin etee nth cen tury. 十九世纪时期，欧洲人口翻了一倍。6 用在一段时间前面to say how long it takes some one to do someth ingHe was such a clever musicia n. He could lear n a songin about five mi nu tes .他是个很聪明的音乐家，他可以在约5分钟内学
7、会一首歌。7、用在“ in+段时间+'s+time 结构中，表示将来时间，如 in a year' s time和in two mon ths' time with -'s con struct ion to say whe n someth ing will happe nI won ' t say goodbye because we' ll be seeing each other againin three days' time . 我不跟你辞别了，因为三天后我们就会再见面的。【注意】上面这句话中的in three days
8、9; time也可以用in three days 。注意比照下面这个句子：He ran the marathon in six hours and 20 minutes .他在马拉松比赛中用时 6个小时20分钟。四、特殊情况1、at or on?当笼统指代假期或周末时，用at;当特指某个具体的假期或周末时，用 on。如:We n ever go awayat the New Year because the traffic is awful.新年我们从不出门，因为路上太堵了。On New Yea' s Day, the whole family gets together.在元旦那天，
9、整个家人会团聚在一起。I ' II go and see my motherat the weekendif the weather ' s okay.周末如果天气好，我会去看望我母亲。The folk festival is always heldon the last weekend in July . 这个民间节日总是在 7 月的最后一个周末举行。注意：美语里用的更多的是：on the weekend 。2、in or on?当要表示笼统表示一天中的时间段 morning、afternoon、evening和night时，一般用in，而且后 面要加定冠词the ;当表示具
10、体某个时间段时，要用on。如：I always work best in the morni ng . I ofte n get tiredin the after noon.我上午的工作效率总是最好的，下午经常觉得疲倦。The ship left the harbouron the morning of the ninth of November. 轮船在 11 月 9 日的早上离开了港口。In the eve ningthey used to sit outside and watch the sun going dow n.他们过去经常在黄昏坐在外面看日落。It happenedon a
11、 beautiful summer ' s evening.这件事情发生在一个美丽的夏日黄昏时分。【注意】对于night，如果是笼统地讲，就用at night，中间不插入任何成分；如果是特指某个夜晚，一般用in the ni ght。如：I was awake in the ni ght, thinking about all the things that have happe ned.夜里我醒了过来，一直想着发生的事情。'It ' s not safe to travel at night , ' the officer said.警官说道：“夜里出行不平安
12、。3、at the end or in the end?at the end后面一般要接of，表示“在 末；in the end 一般作为固定短语，后面不再接成分， 表示“最后。如：At the end of the film, every one was cryi ng.电影快结束时，每个人都在哭。I looked everywhere for the book but couldn ' t find it, so in the end I bought a new copy. 我到处找书，但还是找不到，所以最后就买了本新的了。4、at the beg inning or in th
13、e begi nning?与end的用法相似，at the begi nning后面一般要接of，表示“在.开始；in the begi nning一般作为固定短语，后面不再接成分，表示“刚开始。如：At the beg inning of every less on, the teacher told the childre n a little story.每节课一开始，老师都会给孩子们讲个小故事。In the beg inning , n obody un derstood what was happe ning, but after she expla ined everythi ng
14、 very carefully, thi ngs were much clearer.一开始，大家都不知道发生了什么事情，但是经过她仔细解释之后，一切都明白了。5、不用at、on、in的情况女口果时间前面有 each、every,next、last、some this、that、one、any 和 all 等词时，就不用表 时间的介词了。如：He plays football every Saturday .他每周六都踢足球。Are you free at two o ' clocknext Monday?你下周二两点有空吗？Last summer we ren ted a villa
15、 in Portugal.去年夏天，我们在葡萄牙租了一栋别墅。表地点的介词at、on、in到底怎么用？一、at1、用在表示地域面积不大的某个点的地方如饭桌旁、电影院、车站、机场等前 to refer to apositi on or locati on which we see as a pointI was sitting at my desk.当时我正坐在课桌旁。2、用在公司名称侧重表达的是工作的单位，而不是工作地点前 to talk about locatio ns atcompa ni es, workplaces whe n we see them as a place of act
16、ivityHow many people are worki ngat Microsoft? 有多人在微软工作？3、 用在很多人参与的活动场合前 to refer to activities which invo lve a group of peopleWere you at Lisa ' s party/the cinema/the theatre?你当时在丽莎的聚会上/电影院里/剧院里吗？4、用在学校前with school/college/university She always did well at school. 她在学校表现一直很好。5、用在具体地址、某人家里前to
17、refer to an address or some on e's houseThey once livedat number 12 South George ' s Street.他们曾经住在南乔治街 12号。6、用在公共效劳场所to talk about public places where we get treatments, such as a hairdresser ' s or doctor ' s surgery I can ' t meet at four. I ' ll be at the hairdresser '
18、 s until five. 四点我无法跟你碰面。 我在美发店要呆到五点。7、用在大局部商店前(to refer to most shops )Look what I bought at the butcher ' s today.( 看看我今天在肉店都买了些什么。)8、用在旅途中经过的地点前(to refer to a place which is a part of our journey)We stopped at a very nice village.(我们途经一个很漂亮的村庄。)9、 用在不含 day 的节假日前(to refer to a holiday without“
19、day in its name)People will always enjoy a big dinner at Christmas.(人们在圣诞节总会享用一顿大餐。【特殊用法】at home - at work-at the seaside - at sea (on a voyage) - at recepti on - at the corner ofa street - at the back / front of a building / group of people, etc. - arrive at small or some eve nts二、on1、用在任何物体或地点的外表前
20、(to refer to a positi on on any surface)I kn ow I left my walleton the table.(我知道我把钱包落在桌子上了。)2、用在道路和河海湖前(to describe a position along a road or river or by the sea or by a lake)Dublin is on the east coast of Irela nd.(都柏林位于爱尔兰的东部海岸。)3、用在建筑物的楼层前(to talk about a floor in a building)They live on the 15
21、th floor.( 他们住在 15 楼。)4、用在公共交通工具前(to talk about being physically on public transport)I was on the train whe n she pho ned.(她给我打 时，我在火车上。)注意：当我们描述旅游时选择的交通工具时，一般用 by，如：He went to Paris by air.( 机去了巴黎。)但是，如果要表达走路，那么用 on foot。5、 用在小岛前(with small islands)She spe nt her holiday on a small isla nd.(她在一个小岛上
22、度的假。)【特殊用法】on the left - on the right - on the way - on holiday - on the radio - on televisi on - onplaces他坐飞a horse - on the back / front of a letter / piece of paper etc.三、in1、用在某个地方的内部前to talk about locati ons with in a larger areaI know my book is somewhere in this room. Can anyone see it?我知道我的书
23、就在这个房间的什么地方。有谁看到吗？2、用在物理意义上的工作地点前to talk about workplaces whe n we see them as a physical location She works in an ope n-plan office.她在一个开敞式的办公室里工作。注意： 当表示农场farm 时，一般用 on,如：ve always wan ted to work on a farm.我一直想在农场里工作。3、用在 class 前with class He fou nd it difficult to concen tratein class. 他觉得很难在课上集
24、中注意力。4、 用在国家、城市、县镇或其他地域前 with coun tries,cities, coun ties, tow ns or places as suchThey live in New York.他们住在纽约。【特殊用法】in the n ewspaper - in bed - in hospital - in pris on - in the street - in the sky - in an armchair sit - in a photograph - in a picture - in a mirror - in the corner of a room - in
25、 the back / front of a car - arrive in a country or tow n图解?新概念英语?语法之介词介词作为所有词类中使用面较广的词类，在用法上较难归类，因为介词很多时候都是因为约定俗成，跟形容词、副词和动词等形成了诸多固定的搭配用法，很难找出规律性的内容，所以对于学习者来说，介词的学习和掌握更多的是要靠不断地识记和积累。1表时间in表示较长时间，如世纪、朝代、时代、年、季节、月及一般非特指的早、中、晚等。如：inthe 20th cen tury, in the 1950s, in 1989, in summer, i n January, in t
26、he morning, in one's life , in one ' s thirties 。on 表示具体某一天及其早、中、晚。如：on May 1st, on Mon day, on New Year ' s Day, on a coldni ght in Janu ary, on a fine morning, on Sun day after noon等。at表示某一时刻或较短暂的时间，或泛指圣诞节，复活节等。如：at 3:20, at this time of year,at the beg inning of, at the end of,at the
27、age of ,at Christmas , at ni ght, at noon,at this mome nt 等。在 last, next, this, that, some, every等词之前一律不用介词。如：They go to school everyday from Mon day to Friday.2表地点表方位的in, on, to。in表示“在内，on表示“与相邻，to表示“在之外，又不相邻。表在某地的at, in, on。at表示较小的地点，in表示较大的地方，on表示在一个平面上。3表方式by表用某种方法、手段或泛指某种交通工具。如：by bus。例外情况：on f
28、oot。with表示某种工具、手段，一般接具体的工具和手段。如：She broke the table with a hammer.in表示用某种方式，用某种语言语调、笔墨、颜色等。如： She is in red today 。4表所属关系of 表示 “属于的，表示数量或种类。如：Here is a cup of tea for you.from表示“是哪里人以及时间或时间的起点来自。如： Where are you from?about 表示关于等。如：I know nothing about him.5其他用法常见的固定短语：in a mi nute 会儿、立刻；in a short while一会儿、不久；in a hurry 匆匆忙忙；in dan ger在危险中；in full 全部地、详细地；in a word 一句话；in all总共；in every case 不管怎样；in the end 最后；in spite of 尽管；in person 亲自；in fact 事实上；in good health 身体健康的；in front of 在前面；in some ways 在某些方面；in com mon共同的；in public当众