When同While有咩唔同??

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.

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以前英文通常將when和while等通，都是用作連接兩組動作/事情的用詞。



e.g. When(While) he was working, somebody knocked at the door.



如果仔細的區分，用when和用while可以有兩種含意：



(1) when通常是連接一個時間點，while通常是連接一段時間：



e.g. When you see the light flashes, get away from here. (閃光是一個時間點)



e.g. His wallet was stolen while he was choosing a new handbag. (選擇新手包是一段時間)



(2) while可以表達出，兩個意思近乎相反或相對的片語：



e.g. She was working hard overnight while her husband went out for one-night stand. (在這裡while有轉折前後意思的作用)