[表示地點、場所、位置等]在…裏面；在…內部；在…上：例句: in the room 在房間裏
on
1. 在…表面上，在…之上：例句: a glass on the desk
課桌上的壹只玻璃杯2. 依附(或固定、連接)在…上：例句: a map on a wall
墻上的壹張地圖3. 包裹(或覆蓋)在…上：例句: He put another blanket on her body.
他在她身上又蓋了壹條毯子。4. 位於…上：例句: a little cottage on the hill
山上的壹所小房子a scar on the arm
手臂上的傷疤5. 在…中：例句: on the wing
在飛行中；在行動中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，沿著…：例句: on the road
在路旁on both sides of the river
at
[表示存在或出現的地點、場所、位置、空間]在(某地)，在…裏；在…上；在…旁，接近…，靠近(某處)：例句: at home
在家at the office
在辦公室2. [表示動作的對象、目標]對準，針對著；到，向，往，朝(目的、目標)：例句: Don’t shout at me!
別對我大聲叫嚷!Look at that!
看著那個!3. [表示時間、時刻、時節、年代、年齡]在(或近於)…時刻(或期間、日期、時代)；在…歲時；在，於，當：例句: at dawn
黎明時at night
在夜間4. 穿過，通過，經由：例句: Come in at the front door.
請從前門進來。get out at the window
越窗而出5. [表示來源、根源]從…，從…來：例句: get the facts at their source
into
(表示動作的方向)到...裏
The man walked into the house in the dark.
那人摸黑走進了屋內。
2.(表示時間的推移)進入到
He worked late into the night.
他工作到深夜。
3.(表示變化)成,為;轉入
All the buildings had been turned into hospitals.
所有房子都改成了醫院。
4.朝,向;觸及
The car ran into the wall.
from
1.從...起,始於
She is singing from morning to night.
她從早唱到晚。
2.從;由
He rose from office boy to managing director in fifteen years.
他十五年裏從辦公室勤雜員升到總經理。
3.離(開)
Our school is two miles from the station.
我們學校離車站兩英裏。
4.從...來;出自
He comes from Shanghai.
他來自上海。
5.(表示去除、免掉、阻止、剝奪等)
The pill will relieve you from pain.
這藥丸將使妳免受痛苦。
6.(表示區別、比較)
He is old enough to know right from wrong.
他已長大,能夠辨別是非了。
7.(表示原料)由
Flour is made from wheat.
面粉由小麥制成。
8.因為,由於;出於
He wasn't ill; he stayed in bed from laziness.
他沒病,躺在床上是因懶惰之故。
He is trembling from fear.
他嚇得發抖。
as
副詞 ad.
1.跟...壹樣地,同樣地
Sam is as rich as Alexander.
山姆像亞歷山大壹樣富有。
2.如同;例如
Such animals as foxes and squirrels have bushy tails.
有些動物,如狐和松鼠,有蓬松的尾巴。
介詞 prep.
1.作為,以...的身份
She works as an interpreter in that company.
她在該公司裏擔任翻譯員。
2.當作
She didn't think much of him as a painter.
她對他作為壹位畫家評價不高。
3.像;如同
The old woman was dressed as a young lady.
這位老婦人打扮得像壹位年輕人。
連接詞 conj.
1.像...壹樣;依照;像
You ought to do as Paul tells you.
妳應按照保羅吩咐的做。
The work is not so difficult as you imagine.
這工作不像妳想像的那麽困難。
2.當...時
As she left the room she remembered that book.
她離開房間時想起了那本書。
3.隨著
As the sun rose the fog dispersed.
太陽壹出來,霧隨之消失。
4.因為
We didn't know what to do as we were just visiting there.
我們不知道該怎麽辦,因為當時我們僅僅在那裏作訪問。
5.雖然
Tired as he was, he sat up late.
他雖然疲倦,可仍然很晚才睡。
代詞 pron.
1.(與such,the same,as等連用,引導關系從句)與...相同的事物(或人)
He has earned as much money as I have.
他賺的錢和我賺的壹樣多。
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.
物價普遍上漲,跟六十年代末壹樣。
2.(引導從句,對前述內容作補充)本情況,該事實
She has married again, as was expected.
她已再婚,這是意料中的事。
We are tired, as anyone can see.
我們累了,這是有目***睹的。