以下是小编为大家整理的介词的用法总结讲解，希望能帮助大家更好地认识介词的用法，提高英语水平。
1.介词的分类
(1)简单介词如：at,by,for,from,in,of,on…
(2)复合介词如：into,onto,within,out of…
(3)双重介词 如：from under,since before,until after…
(4)短语介词如：in front of,because of,ahead of,according to…
另外，有的介词可以兼作副词(如:around,over等)，有的介词可以兼作连接词(如：after,before等)。
2.介词短语在句中的作用
(1)作定语
例如：The man in black is Mr Zhang.穿黑衣服的人是张先生。
He is a man of wealth.他是个有钱人。
China is a country with a long history.中国是历史悠久的国家。
(2)作表语
例如：He was already in his forties.他已经四十多岁了。
You must remain in bed.你必须得卧床休息。
He was against slavery.他反对奴隶制。
(3)作状语
例如：At seventeen,he began to learn acting.
十七岁时，他开始学习表演。(时间状语)
We put the play on in a theatre.
我们在剧院上演这出戏。(地点状语)
We jumped with joy.
我们高兴得跳了起来。(原因状语)
He returned home for his dictionary.
他回家去取字典。(目的状语)
We went there by bike.
我们骑自行车去那儿的。(方式状语)
In spite of the heavy rain,they arrived.
尽管雨下得大，他们还是到了。(让步状语)、
(4)作补足语
例如：I found everthing in good condition.我发现一切状况良好。
Eevn his way of walking down the street and turning a corner could be recognaized as his own.
甚至他在街上走路时和在拐角处转弯时的那种姿态，都可以认为是他独有的动作。
The heavy rain kept us inside the house.(大雨使得我们待在了家里。)
3.关于介词值得注意的几个问题
(1)同一个介词的不同用法和意义，用at为例。
(A)表示地点，在……They are waiting for me at the gate.
(B)表示时间，在……时(刻) We usually get up at half past five every morning.
(C)表示状态，(正)在……中The Browns are at table.
(D)表示速度、价格，按……The truck ran at 40 miles an hour.
(E)表示动作对象、目标、向……Bob threw a stone at a dog.
(F)表示原因，由于…… He was surprised at his friend’s rudeness.
(G)表示能力，擅长于…… My sister is good at painting.
(2)同一介词跟不同动词构成不同意义的短语动词，以on为例。
(A)I hope to call on you in your office this afternoon.(拜访)
