when 和while -----10點

簡單....易明:


when (conj.) 渉及的事情/情況發生在[ 時間有距離 ]

I like swimming [ when ] I was young. 現在說及年青時.




while (conj.) 涉及的事情/情況發生在[ 同一時間內 ]

The telephone rings [ while ] I am bathing. 兩事在同時發生.

when or while



We use both when and while as subordinating conjunctions to introduce adverbial clauses of time. They mean during the time that and indicate that something is or was happening when something else occurred:





•The prisoners escaped when / while the prison warders were eating their lunch.



•When / While the prison warders were eating their lunch, the prisoners escaped.


Note that we can also use as and whilst in the same way, although they sometimes sounds more formal or literary





•As the sun went down, I sipped a rum and coke on the balcony.



•I sipped a rum and coke on the balcony whilst the sun went slowly down on the horizon.


Note that during, which also introduces a longer period of time, is a preposition which is use with a noun or noun phrase:





•I first met my future wife during my stay in Casablanca.



•I first met my future wife while I was staying in Casablanca.


when not while



We use when, not while, to talk about something that occurs at the same time as a longer action or event that is described in the main clause:





•I was asleep in my chair when Dora rang to say she wasn't coming home.



•We were playing monopoly when the lights went off.

(1)when 和while 的分別？

We usually use while to say that two longer actions or situations go/went of at the same time.
e.g.While you were reading the paper, I was working.

We prefer when to refer to ages and periods of life.
e.g. When I was a child, we lived in London.

(2)如何使用when 和while？

(a)two acting, two continual one (two progressive forms)
e.g. While you are reading the newspaper, I am painting.

(b) background situation
When/While I was walking down the street, I saw Peter drive a Volvo passing by.

(c)a period time (usually progressive form)using while/when
While I was having dinner, Mom was watching TV.

(d)two simple tense while/when either can be used, yet if what we talk about is about the age or kinda life step, usually using 'when'
I had lunch in the restaurant while/when she studied in the library.
Mary's mother died when she was 12.
Mary married a cute guy when she was in London.

when 是短時間用
1. (用作疑問副詞)什麼時候,何時
I'd like to know when they'll let him out.
2. (用作關係副詞,引導關係子句)當...時
There were times when I didn't know what to do.
有些時候我不知道該怎麼辦才好。
conj.
1. 當...時
John got engaged to her when travelling last winter.
去年冬天旅行時,約翰與她訂了婚。

2. 既然,考慮到
How can he get the promotion when his boss dislikes him?
既然上司不喜歡他,那他怎麼會獲得提升呢?
3. 雖然,然而
I had only fifteen dollars on me when the book I wanted cost twenty.
我身上只帶了十五元錢,可是我想買的那本書定價二十元。
4. 在那時,然後
pron.
1. 什麼時候,那時
Since when has she taught here?
她從什麼時候開始在這兒教書的?
n.
1. (事件發生的)時間[the S]

時代英英－英漢雙解辭典
KK: [ ]
adv.
1. at what time
什麼時候
2. on what occasion; under what circumstances
在什麼場合；在什麼情況下
3. at an earlier time and under different circumstances
從前景況不同時
conj.
1. at what time or point
何時
He told us when to eat.
他告訴我們開飯的時間。
2. at which time
其時
He came at six, when the sun was setting.
他6點鐘來，時值日落。
3. as soon as
一…就
The runners started when the gun went off.
槍一響選手就起跑。
4. at whatever time; whenever
不論何時；每逢
She smiles when I praise her.
我每稱讚她，她必微笑。
pron.
1. what or which time
何時；那時
We came back on Tuesday, since when we have been working in the repair shop.
我們星期二回來，此後就一直在修配間工作。
while 是長時間用。
1. 一會兒,一段時間[S]
I'll be back in a while.
我一會兒就回來。
conj.
1. 當...的時候,和...同時
She listened closely while he read the letter.
他讀信時,她聽得很仔細。
I'll take care of your children while you are away.
你不在時我會照顧你的孩子的。
We must strike while the iron is hot.
我們必須打鐵趁熱。
2. 而,然而
I like tea while she likes coffee.
我喜歡喝茶,而她喜歡喝咖啡。
3. 雖然,儘管
While I like the color of the hat, I do not like its shape.
雖然我喜歡這頂帽子的顏色,但我不喜歡它的形狀。
4. 只要
vt.
1. 消磨(時光),輕鬆地度過[(+away)]
He whiled away the whole afternoon watching TV.
他看電視消磨了一個下午。

時代英英－英漢雙解辭典
KK: [ ]
n.
1. [S] a period of time
一段時間
2. time or pains required to do something
做事所需之時；辛勞（用於worthwhile及worth one's while短語中）
conj.
1. as long as; during the time that
當…之時
2. at the same time that
於…同時
3. although; whereas
雖然；然而
v.t.
1. to cause to pass; spend
度過；消磨（away）
to while away time
消磨時光