同学,介词的用法是很乱很杂很多很没道理的~要简单又全面根本不可能.你去翻翻字典,最多解释最所谓"废话的"都是介词
不想看别人的废话,自己总结才有用.
尽管这样，还是拿了一堆废话给你...
at
at 1
AHD:[²t] […t ] 非重读时
D.J.[#t][*t ]非重读时
K.K.[#t][*t ]非重读时
prep.（介词）
In or near the area occupied by; in or near the location of:
在…里，在…附近：在某一被占据地区里或附近；在某一场所里或附近：
at the market; at our destination.
在市场；在我们的目的地
In or near the position of:
出现在…一面：在或接近某一位置：
always at my side; at the center of the page.
总是站在我一边；在页码中央
To or toward the direction or location of, especially for a specific purpose:
向，朝向：到或朝某一方向或位置，尤指朝一特定目的：
Questions came at us from all sides.
从四面八方向我们涌来的问题
Present during; attending:
出席：在…出现；出席：
at the dance.
出席舞会
Within the interval or span of:
在…期间：在某一时间间隔或时间跨度内：
at the dinner hour; at a glance.
吃饭时间；转瞬间
In the state or condition of:
在某一状态或状况下：
at peace with one's conscience.
心安理得
In the activity or field of:
在某一活动或某一领域内：
skilled at playing chess; good at math.
精于棋艺；擅长数学
To or using the rate, extent, or amount of; to the point of:
在某一点：到达或运用比率、限度、或数量；在某一点：
at 30 cents a pound; at high speed; at 20 paces; at 350=F.
每英镑三十分；以高速；在二十步处；在华氏三百五十度时
On, near, or by the time or age of:
到达，接近：到达，接近某一时刻或年龄，或到某一时刻或年龄为止：
at three o'clock; at 72 years of age.
到三点；到七十二岁时
On account of; because of:
根据；因为：
rejoice at a victory.
因胜利而欢欣鼓舞
By way of; through:
以…方式；通过：
exited at the rear gate.
从后门溜走
In accord with; following:
根据；遵循：
at my request.
根据我的请求
Dependent upon:
凭借：
at the mercy of the court.
在法庭的宽容下
Occupied with:
正在：
at work.
正在工作
at it【非正式用语】
Engaged in verbal or physical conflict; arguing or fighting:
争论，冲突：口头或身体上的冲突；争论或冲突：
The neighbors are at it again.
邻居们又吵起来了
================
in
in 1
AHD:[¹n]
D.J.[in]
K.K.[!n]
prep.（介词）
Within the limits, bounds, or area of:
在…里：在区间、界限或面积以内：
was hit in the face; born in the spring; a chair in the garden.
被打在脸上；在春天出生；花园里的一把椅子
From the outside to a point within; into:
从外面进入；入内：
threw the letter in the wastebasket.
把信扔进废纸篓
To or at a situation or condition of:
达到或处于某种状态或情形：
was split in two; in debt; a woman in love.
被分成两半；负债；恋爱中的女人
Having the activity, occupation, or function of:
有某种活动、职业或作用：
a life in politics; the officer in command.
政治上的生涯；指挥官
During the act or process of:
在某行动或过程中：
tripped in racing for the bus.
追赶公共汽车时绊倒
With the arrangement or order of:
按照某种安排或秩序：
fabric that fell in luxuriant folds; arranged to purchase the car in equal payments.
富有华丽褶皱的面料；安排分期付相同款额来买车
After the style or form of:
以某种风格或形式：
a poem in iambic pentameter.
以五音步抑扬格写成的诗
With the characteristic, attribute, or property of:
具有某种特征、品质或属性：
a tall man in an overcoat.
穿着大衣的一个高大男人
By means of:
以某种方式：
paid in cash.
以现金支付
Made with or through the medium of:
用或通过某种媒介：
a statue in bronze; a note written in German.
青铜雕像；用德语写的便笺
With the aim or purpose of:
有某种目的或目标：
followed in pursuit.
跟踪
With reference to:
特指：
six inches in depth; has faith in your judgment.
深度为6英寸；确信你的判断
Used to indicate the second and larger term of a ratio or proportion:
指比率：用于次要的和较大的比例或比率条件：
saved only one in ten.
只节省了十分之一
adv.（副词）
To or toward the inside:
朝里面或进里面：
opened the door and stepped in.
打开门走了进去
To or toward a destination or goal:
到达或朝着某个目的地或目标：
The mob closed in.
暴徒围攻过来
Baseball To home base; so as to score:
【棒球】 回本垒；得分：
runs batted in; singled the runner in.
快跑回本垒；击出一垒安打
Within a place, as of business or residence:
在某地，如在工作地点或在居处：
The manager is in before anyone else.
经理在别人来之前就到了
So as to include or incorporate:
以包括或并入：
Fold in the egg whites.
把蛋清拌进去
So as to occupy a position of success or favor:
以获取成功或受宠的职位：
campaigned hard and was voted in.
激烈竞争后当选
In a particular relationship:
在某种特殊的关系当中：
got in bad with their supervisor.
与监督者相处得不好
adj.（形容词）
Located inside; inner.
在里面的；内部的
Incoming; inward:
新来的；向内的：
took the in bus.
上了新开来的公车
Holding office; having power:
执政的；当权的：
the in party.
执政党
Informal
【非正式用语】
Currently fashionable:
目前流行的：
the in thing to wear this season.
这个季节的流行装束
Concerned with or attuned to the latest fashions:
紧跟或追赶潮流的：
the in crowd.See Synonyms at fashionable
赶时髦的人们参见 fashionable
n.（名词）
One that has position, influence, or power:
执政党：有地位、影响或权力的人：
the ins against the outs.
执政党与在野党的对立
Informal Influence; power:
【非正式用语】 影响；权力：
had an in with the authorities.
与当局有特殊的关系
in for
Guaranteed to get or have:
保证得到或拥有：
You're in for a big surprise.
你肯定会大吃一惊
in that
For the reason that.
因为
========================
on
on
AHD:[¼n, ôn]
D.J.[%n, %8n]
K.K.[$n, %n]
prep.（介词）
Used to indicate position above and supported by or in contact with:
在…上：用于表示在…上及被…支撑或与…接触的位置：
The vase is on the table. We rested on our hands and knees.
花瓶在桌子上。我们把头靠在手和膝盖上休息
Used to indicate contact with or extent over (a surface) regardless of position:
在…上面：表示不考虑位置接触或在某一表面上：
a picture on the wall; a rash on my back.
墙上挂着的一幅画；我背上长的疹子
Used to indicate location at or along:
表示位于或沿着：
the pasture on the south side of the river; a house on the highway.
河岸南边的牧场；高速公路边的房子
Used to indicate proximity:
表示接近：
a town on the border.
靠近边界的一个市镇
Used to indicate attachment to or suspension from:
表示附在…上或悬于…：
beads on a string.
细绳上悬的珠子
Used to indicate figurative or abstract position:
用以表示比喻的或抽象的位置：
on the young side, but experienced; on her third beer; stopped on chapter two.
相当年轻，但经验十足；在她喝第三杯啤酒时；到第二章为止
Used to indicate actual motion toward, against, or onto:
向…，朝…：用于表示实际的动作朝向，对着…或在…上：
jumped on the table; the march on Washington.
跳到桌子上；向华盛顿的进军
Used to indicate figurative or abstract motion toward, against, or onto:
向…，在…上：用于表示比喻或抽象的运动的朝向，对着…或在…之上：
going on six o'clock; came on the answer by accident.
到快六点了；偶然找到了答案
Used to indicate occurrence at a given time:
用于表示事件发生在某指定的时间：
on July third; every hour on the hour.
在七月三日这一天；时时刻刻
Used to indicate the particular occasion or circumstance:
用以表示某一特定场合：
On entering the room, she saw him.
她一进这个房间便看到了他
Used to indicate the object affected by actual, perceptible action:
对着：用于表示实际的、能察觉到的行为影响到的目标：
The spotlight fell on the actress. He knocked on the door.
聚光灯把光集中打到女演员身上；他敲门
Used to indicate the object affected by a figurative action:
针对：用于表示一个想象的行动影响到的目标：
Have pity on them.
可怜他们吧
Used to indicate the object of an action directed, tending, or moving against it:
向着，对着：用于表示行动指导、朝向或移向的目标：
an attack on the fortress.
对城堡的袭击
Used to indicate the object of perception or thought:
思考的事物：用于表示感觉和思想的对象：
gazed on the vista; meditated on his actions.
注视着风景；策划他的行动
Used to indicate the agent or agency of a specified action:
行为的原因或动力：用于表示对某一特定行为起作用或对某一行为有帮助的东西：
cut his foot on the broken glass; talked on the telephone.
碎玻璃把他的脚扎破了；通过电话聊天
Used to indicate a medicine or other corrective taken or undertaken routinely:
服用：用于表示有规律或经常性服用的药物或矫正性行为：
went on a strict diet.
进行严格的食疗
Used to indicate a substance that is the cause of an addiction, a habit, or an altered state of consciousness:
由于：引上瘾、习惯或意识状态改变的物质：
high on dope.
因吸毒而陷入沉醉状态
Used to indicate a source or basis:
根据：用于表示来源或基础：
“We will reach our judgments not on intentions or on promises but on deeds and on results”(Margaret Thatcher)
“我们将根据事实和结果而不是目的或诺言来作出判断”(玛格丽特·撒切尔)
Used to indicate the state or process of:
表示…的状态或过程：
on leave; on fire; on the way.
休假；着火；在途中
Used to indicate the purpose of:
表…的意图：
travel on business.
商务旅行
Used to indicate a means of conveyance:
表示运送方式：
ride on a train.
坐火车
Used to indicate availability by means of:
表示可利用的方法：表示用…方式获取：
beer on tap; a physician on call.
随时可取用的啤酒；随时待命的大夫
Used to indicate belonging to:
表归属：
a nurse on the hospital staff.
在医院就职的护士
Used to indicate addition or repetition:
表示增加或重复：
heaped error on error.
错上加错
Concerning; about:
涉及；关于：
a book on astronomy.
有关天文学的书籍
Concerning and to the disadvantage of:
关于且不利于：
We have some evidence on him.
我们有一些不利于他的证据
Informal In one's possession; with:
【非正式用语】 拥有；带着：
I haven't a cent on me.
我一分钱都没带
At the expense of; compliments of:
以…为代价；恭维：
drinks on the house.
免费的饮料
adv.（副词）
温馨提示：答案为网友推荐，仅供参考