Anonymous

# while & when????

while & when這兩者有何不同呢？它們的用法有何不同？我都搞不懂？？？一個頭兩個大～可否用最簡單的方法告訴我如何去分辦這兩者的不同。謝謝～

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有一個比較好記的方式:

**when+過去簡單式 1, 過去簡單式 2

1 表先發生的動作, 2 表後發生的動作

Ex: When the phone rang, I went to answer it.

**when+簡單式(突然性動作), 進行式(持續性動作)

簡單式表插入的動作, 進行式表被該動作插入前正在進行中的動作

Ex: When the phone rang, I was taking a shower(持續性動作).

**while+進行式(持續性動作), 簡單式(突然性動作)

Ex: While I was taking a shower, the phone rang.

**while+進行式 1, 進行式 2

表示兩個動作無先後問題, 同時在發生

Ex: While I was studying at home, some people were fooling around outside.

Source(s): 補習班學來地

Let me explain by example:

'clause' + 'clause'

1. 'When + progressive' + 'simple' = 'While + progressive' + 'simple'

a. When I was walking past, I found it. =

b. While I was walking past, I found it.

The above means 'first clause (action)' happens first and 'second clause (action)' happens in the middle of the first happening.

2. 'When + simple' + 'progressive or 'progressive' + 'when + simple'

a. When she was washing the dishes, she dropped a plate.

b. She was washing the dishes when she dropped a plate.

The above means the 'progressive' happens first.

3. 'While + progressive' + 'progressive' (not when)

While John was dancing, Mary was singing.

It means the 'while clause' and the other 'clause' were in progress at the same time, but we disregard their beginning and end .

4. 'When + simple' + 'simple' means 'When clause' happens before the other 'clause'

When she saw him, she dashed away on four.

Of course, there are still others to be discussed elswhere.

一、when (當)：

(1) When + S + V簡單式..., S + V簡單式. →例：When I drive, I listen to the radio.

(2) When + S + V簡單式..., S + V進行式. (強調當某事發生時，某動作正在進行)

→例：When you called me last night, I was sleeping.

二、while (當)： (後接「進行式」)

(1) While + S + V進行式..., S + V進行式. (表示兩動作同時正在持續發生)

→例：While Mom was cooking, I was watching TV.

(2) While + S + V進行式..., S + V簡單式. (這裡的"V簡單式"無法用進行式，是因為碰到動詞為"瞬間動詞"時不能用進行式，像是meet (遇見)，沒有I'm meeting you.的說法，故用簡單式。)

→例：While we were walking in the park, we met Tom and his girlfriend.

Source(s): 學校講義
• Anonymous

when是說{在那個時間點}所發生的事情 不接進行式

while強調{在那段時間中}正在發生或持續的事情{狀態} 常和進行式連用

ex:Meg came into the room while I was listening to the radio.

• Anonymous

While

n. (名詞 noun)

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. (及物動詞 transitive verb)

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

when

KK: []

DJ: []

1. (用作疑問副詞)什麼時候,何時

I'd like to know when they'll let him out.

我想知道他們什麼時候放他。

When did you last see Margaret?

你上一次見到瑪格麗特是什麼時候?

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。

Don't get excited when you talk.

你說話時別激動。

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. (代名詞 pronoun)

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. (名詞 noun)

1. (事件發生的)時間[the S]

Source(s): Yahoo字典