in
[表示地点、场所、位置等]在…里面；在…内部；在…上：例句:in the room 在房间里
on
1.在…表面上,在…之上：例句:a glass on the desk
课桌上的一只玻璃杯2.依附(或固定、连接)在…上：例句:a map on a wall
墙上的一张地图3.包裹(或覆盖)在…上：例句:He put another blanket on her body.
他在她身上又盖了一条毯子.4.位于…上：例句:a little cottage on the hill
山上的一所小房子a scar on the arm
手臂上的伤疤5.在…中：例句:on the wing
在飞行中；在行动中6.在…方向：例句:to sail on a northerly course
向北航行on the right
在右(手)方7.靠近…,在…旁,沿着…：例句:on the road
在路旁on both sides of the river
at
[表示存在或出现的地点、场所、位置、空间]在(某地),在…里；在…上；在…旁,接近…,靠近(某处)：例句:at home
在家at the office
在办公室2.[表示动作的对象、目标]对准,针对着；到,向,往,朝(目的、目标)：例句:Don’t shout at me!
别对我大声叫嚷!Look at that!
看着那个!3.[表示时间、时刻、时节、年代、年龄]在(或近于)…时刻(或期间、日期、时代)；在…岁时；在,于,当：例句:at dawn
黎明时at night
在夜间4.穿过,通过,经由：例句:Come in at the front door.
请从前门进来.get out at the window
越窗而出5.[表示来源、根源]从…,从…来：例句:get the facts at their source
into
(表示动作的方向)到...里
The man walked into the house in the dark.
那人摸黑走进了屋内.
2.(表示时间的推移)进入到
He worked late into the night.
他工作到深夜.
3.(表示变化)成,为;转入
All the buildings had been turned into hospitals.
所有房子都改成了医院.
4.朝,向;触及
The car ran into the wall.
from
1.从...起,始于
She is singing from morning to night.
她从早唱到晚.
2.从;由
He rose from office boy to managing director in fifteen years.
他十五年里从办公室勤杂员升到总经理.
3.离(开)
Our school is two miles from the station.
我们学校离车站两英里.
4.从...来;出自
He comes from Shanghai.
他来自上海.
5.(表示去除、免掉、阻止、剥夺等)
The pill will relieve you from pain.
这药丸将使你免受痛苦.
6.(表示区别、比较)
He is old enough to know right from wrong.
他已长大,能够辨别是非了.
7.(表示原料)由
Flour is made from wheat.
面粉由小麦制成.
8.因为,由于;出于
He wasn't ill; he stayed in bed from laziness.
他没病,躺在床上是因懒惰之故.
He is trembling from fear.
他吓得发抖.
as
副词 ad.
1.跟...一样地,同样地
Sam is as rich as Alexander.
山姆像亚历山大一样富有.
2.如同;例如
Such animals as foxes and squirrels have bushy tails.
有些动物,如狐和松鼠,有蓬松的尾巴.
介词 prep.
1.作为,以...的身份
She works as an interpreter in that company.
她在该公司里担任翻译员.
2.当作
She didn't think much of him as a painter.
她对他作为一位画家评价不高.
3.像;如同
The old woman was dressed as a young lady.
这位老妇人打扮得像一位年轻人.
连接词 conj.
1.像...一样;依照;像
You ought to do as Paul tells you.
你应按照保罗吩咐的做.
The work is not so difficult as you imagine.
这工作不像你想像的那么困难.
2.当...时
As she left the room she remembered that book.
她离开房间时想起了那本书.
3.随着
As the sun rose the fog dispersed.
太阳一出来,雾随之消失.
4.因为
We didn't know what to do as we were just visiting there.
我们不知道该怎么办,因为当时我们仅仅在那里作访问.
5.虽然
Tired as he was,he sat up late.
他虽然疲倦,可仍然很晚才睡.
代词 pron.
1.(与such,the same,as等连用,引导关系从句)与...相同的事物(或人)
He has earned as much money as I have.
他赚的钱和我赚的一样多.
She felt just the same as he did.
她和他的感受相同.
There is a general rise in prices such as occurred in the late 60's.
物价普遍上涨,跟六十年代末一样.
2.(引导从句,对前述内容作补充)本情况,该事实
She has married again,as was expected.
她已再婚,这是意料中的事.
We are tired,as anyone can see.
我们累了,这是有目共睹的.
