著作摘录
本文系统锻真金不怕火了英语中介词(preposition)的中枢作用和使用场景。介词四肢句子的'联系纽带'，主要承担三大功能：聚拢名词与其他因素、抒发多样联系(如时期、地点、神志等)、组成介词短语补充信息。著作翔实列举了介词在六大典型场景中的应用：1)定位空间所在(如in/on/under)；2)抒发时期联系(at/in/for等)；3)默示标的包摄(to/from/for)；4)诠释动作神志(by/with/in)；5)解说原因主见(because of/for)；6)固定搭配(listen to/good at等)。此外，还先容了介词短语、稀零结构等用法，并分类例如诠释in/on/at等高频介词的具体应用。全文通过无数生涯化例句，匡助读者直不雅结实介词怎么让英语抒发更准确清亮。
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翻开本日头条稽察图片细目
一、什么是介词？一句话用东谈主话讲透你是不是频繁在英语句子里看到 in、on、at、to、with、by、about、for、from 这类小词？这些隐秘的小词，即是介词，英文叫 preposition。
那么介词的中枢作用是什么？一句大白话：
介词即是给东谈主和物、动作之间“连联系”，告诉民众“谁和谁是什么联系、在什么位置、啥时期、用啥神志、主见是什么”。
简便说：介词即是句子的“联系纽带”和“空间时期舆图”，莫得它，句子就像没东谈应用的“散班子”，内容彼此之间十足扯不清。
二、介词的基本职责长什么样（大白话归纳）从最骨子的讲，英语里的介词主要有三大职责：
1. 把名词和动词、描画词等聚拢起来，组合成“竣工的信息”比如：She is in the room.（“在房间里”靠 in 这介词说了了）
2. 用来抒发“地点、时期、神志、原因、对象、标的、主见”等多样联系比如：I go to school at eight.（去学校，几点？用 to 默示标的/方针，用 at 默示时期）
3. 匡助句子组成介词短语，四肢修饰语、补充诠释，让信息了了致密比如：He speaks with confidence.（“with confidence”补充诠释景况）
一句话追忆：介词即是让你知谈“动作/景况发生在什么环境、什么对象、什么条目下”。
三、介词在英语句子里到底有哪些典型场景？你说句英语，用介词的时局几乎太多了。底下系统分场景例如诠释：
场景一：定位物理空间与所在这个场景透彻是介词最高频任务，扫数“位置、所在”全靠它。
在那儿？（in, on, at, under, above, between, behind, near, beside, below）The book is on the table.（桌子上）The cat is under the chair.（椅子底下）She lives in Paris.（在巴黎）The school is near my home.（在我家隔邻）He stood between two cars.（两车之间）I sat next to her.（在她阁下）毋庸介词的话，只说“book table”，根蒂搞不清啥联系。有了介词后，一下精确定位，别东谈主一听就懂你说的是哪儿。
所在体现（above, below, over, under, behind, in front of）The sun is above the trees.（太阳在树上方）The garage is behind the house.（车库在屋子后头）Stand in front of the door.（站在门前）场景二：抒发时期、时点、时段时期联系是介词超常用的一个细分。
具体某个时期点（at）The class starts at 8 o’clock.（8点初始）I will call you at noon.（中午）某个日历、月份、年份、星期（on, in）Her birthday is on July 5th.（7月5号）On Monday, we have a meeting.He was born in 2002.（2002年）Flowers bloom in spring.（春天）时期长度、延续景况（for, during, since, from…to）She stayed for two weeks.（待了两周）I haven’t seen him since last year.（自昨年以后没见过）From morning to evening, he works.We met during the holidays.（假期时间）先后规定（before, after, until）Please finish the work before lunch.We will walk after dinner.The shop is closed until Monday.毋庸介词，你只可说“简短时期”，有了介词，时期定位立时体现出来。
场景三：标的、主见、包摄、迁徙默示“朝那儿去，归于谁，作用在哪儿”等，王人靠介词。
标的/去那儿（to, into, toward, through, along, across）He walked to the park.（去公园）The dog ran into the room.（跑进房间）She moved toward the door.（向门挪动）Drive through the tunnel.（穿越隧谈）Walk across the street.（过马路）We jogged along the river.（沿着河）包摄、作用对象（to, for, with）Give this book to Mary.（给玛丽）This gift is for you.（为你准备的）I did it with my friends.（和一又友们一谈）开始/起先（from, out of）He comes from China.（来自中国）She took candy out of the box.（从盒子里拿糖）场景四：抒发动作神志、本领、条目介词匡助补充动作发生的“具体神志”。
神志/器用（by, with, in, on）He traveled by train.（坐火车）She wrote with a pen.（用笔写）Send the message by email.（通过邮件）材料、表跟随（with, without）Drink coffee with sugar.（加糖喝咖啡）He left without any money.（没带钱就走了）景况/条目（in, by, under, on）She did it in a hurry.（仓猝中中）We are under pressure.（在压力下）Work on an empty stomach.（空心责任）场景五：抒发原因、主见、后果介词还能崇拜“告诉民众为什么、为了什么”。
原因（because of, due to, owing to, for, from）School was closed because of the snow.He cannot work due to illness.主见（for, to）I came here for a meeting.She called to ask about the project.后果（from, out of）She cried out of happiness.The damage resulted from the storm.场景六：和被迫、某些动词固定搭配不少动词、描画词必须和某些介词搭配，变成“固定结构”。
动词+介词Listen to music.Wait for someone.Depend on luck.Apologize for mistakes.描画词+介词Interested in art.Good at sports.Proud of achievements.Afraid of snakes.被迫语态+介词The movie was directed by him.The letter was written by Alice.翻开本日头条稽察图片细目
四、介词的稀零结构和用法1. 介词短语界说: “介词+名词/代词/数词”，组合成短语修饰主语、谓语、宾语。
例子：
We camped in the forest.She answered with a smile.The train left at noon.补充诠释：介词短语常当状语、定语，为句子彭胀信息。“in the morning”（清早），“with my sister”（和我妹妹），“by car”（坐车）……抒发无尽。
2. 介词聚拢东谈主和事的联系抒发“属于谁”、“对于什么”、“波及哪方面”等：
The story is about friendship.The keys are for the manager.She is with her parents.3. 聚拢数词、数目和单元three cups of teaa piece of cakekilos of rice4. 其他常见结构be afraid ofbe good atagree with someonedream about/of somethingask for help许多时候，动词/描画词/短语+介词是“定番组合”，要可贵固定搭配。
五、介词的种类详解和例如分类底下系统列出英语中常见介词，并以实践例句诠释用法。
1. 最常用的空间、时期三大介词——in, on, at空间类：
in（浩瀚空间、界限内）in the room, in a city, in the worldon（名义、斗争点）on the floor, on the wall, on the tableat（具体点、地点）at the station, at the door时期类：
in（月份、年份、万古期段）in June, in 2012, in winteron（具体日历、星期）on Monday, on the 3rd, on Christmas Dayat（具体时刻）at 8 o’clock, at night, at midday口诀：“大界限 in，小点 at，名义 on”
2. 默示标的的介词to, toward, into, through, across, along, from, out ofgo to school, walk toward the park, move into the room, drive through the city3. 默示神志、器用、景况的介词by, with, without, in, ontravel by bus, cook with oil, do without help, in silence4. 表因果、主见的介词for, because of, due to, out ofcome for dinner, late because of traffic, out of curiosity5. 被迫和搭配专用介词by（谁作念的）The song was written by him.of（属于）She is proud of her son.6. 其他高档介词与短语介词despite（尽管）Despite the rain, we went out.according to（凭据）According to the teacher, the exam is easy.except for（除了）Except for Tom, everyone passed.六、介词在句子中的位置和结构技巧1. 介词一般奏凯跟名词、代词、数词under the bedwith himfor two hours2. 表时期、地点、神志的介词短语多放句首或句尾In the morning, I go jogging.I eat breakfast at home.3. 介词后头弗成奏凯跟动词原形——要加动名词（ing）He is good at drawing.（弗成说“at draw”）She is interested in reading.4. 介词不可销耗“Discuss about”是错的，应为“discuss”（discuss后不可加about）“Marry with”是错的，应为 “marry sb.” 不加 with但有些不可概略：
“talk about”, “think about”, “dream of/about”, “agree with”5. 差别单项和复合介词（短语）because of, instead of, due to, together with, in front of, according to 等七、介词用法常见造作与校正1. in/on/at 用错，道理全变I am in the bus.（指在车里）I am on the bus.（默示“我乘坐这辆公交车”）See you on Monday.（正确）See you at Monday.（错）2. 动词后加错或漏了介词Wait for me.（弗成只说 Wait me）Listen to the teacher.（弗成说 Listen the teacher）3. 介词后用动词原形He is good at play football.❌He is good at playing football.✅4. 忘了介词短语的语法作用“I went to shopping.” 造作正确：“I went shopping.” 或 “I went to the shop.”5. 被迫语态结构乱用介词The film was made by Steven.（正确）The film was made with Steven.（错，with默示一谈参与，不是主动制造者）八、介词在写稿和白话中的实践作用和超等克己1. 让句子“六脉运动”，各信息彼此相连莫得介词，句子就像一堆比肩词语，读起来像“报活水账”：
He school morning run.（啥趣味趣味？？）用介词后：
He goes to school in the morning to run.2. 精确定位变装、时期、空间、东谈主物联系The dog is under the table.I will meet you at the station on Tuesday at 9am.3. 丰富信息量，使句子内容高度浓缩She is good at dancing.The presentation is about climate change.The teacher is in charge of the class.4. 描画方针、对象和条目时必不可少介词决定动作的“走向”和“影响对象”。
5. 让白话和写稿抒发存一火之交实用扫数 native speaker 正常使用的动词短语、搭配王人离不开介词。
get up, get on, get off, look for, look after, take care of, turn on, switch off九、隐秘用好介词的小法门1. 多背常用固定搭配good at, interested in, look for, think about, take care of, listen to, wait for2. 结实 in/on/at 的骨子区别in（空间、界限、容器）on（名义、成就）at（点、事件、行为）3. 动词短语、习气用法要谨记agree with sb.depend on sth.be afraid of sth.4. 分清时期、地点、主见、神志，无邪替换5. 碰到写稿和白话时，碰到生疏情况多查查搭配是否需要介词十、介词专项抒发“秒懂追忆”一句话，英语寰球“谁去哪儿、谁啥时候管事、谁为啥管事”，全靠介词来串联。
介词中枢口诀：
位置用 in/on/at，标的靠 to/into/toward；时期用 at/on/in，神志用 with/by/for；搭配用动词/描画词连，句子运动联系显！
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