while的用法

Question

while做然而，虽然意思的时候是不是只能放在句子的前面？或者说while做“然而” “虽然”解释的时候，该怎么用？附例句！

Answer 1

从一道高考题综述while的用法

先看下面一道高考题:

-I\”m going to the post office.

-________you\”re there, can you get me some stamps?

A. As B. While C. Because D. If

对连词的用法考查在每年高考题中均有涉及。Because引导原因状语从句, If引导条件状语从句,按题干提供的情景均不可取。While和As都能引导时间状语从句,极易混淆。As一般强调主句谓语动词与从句谓语动词动作的同时性,而While除可表示同时性外,还含有一个动作在另一个动作正在进行或持续过程中的某一时刻发生。再从题干所提供的情景判断,就可知道B为最佳答案。

while的用法可从下述几点理解与运用。

一、while意为\"当......时候\",指一段时间,不能用来表示一个时间点。

While the discussion was still going on, George came in. 当讨论还在进行时,乔治走了进来。

二、while意为\"而;然而\",表示转折。

There\”re plenty of rain in the southeast, while there\”s little in the northeast. 东南部雨量充足,而西北部则很少下雨。

三、while意为\"虽然;尽管\",表示让步。

While I admit his good points, I can see his shortcomings. 尽管我承认他的优点,但我还是能看到他的缺点。

四、while意为\"只要\",表示条件。

We can surely overcome these difficulties while we are closely united. 只要我们紧密地团结一致,一定能克服这些困难。

五、while从句中的省略。

当while从句中的主语与主句的主语一致,且含有be的某种形式时,从句中的主语连同be可同时省略。

While listening to the radio, she fell asleep. 她在听收音机时睡着了。

While in London, he studied music and painting. 在伦敦时,他学习音乐和绘画。

六、while可用作名词,意为\"一会儿;一段时间\"。

作名词用时,主要用于短语中: after a while \"过了一会儿\"; all the while \"一直,始终\"; a short / little while ago \"刚才\"; once in a while \"偶尔,间或\"; wait / rest(for) a while \"等 / 休息一会儿\"。

I haven\”t seen her for a long while.我好久没有看见她了。

Where have you been all this while?这一阵子你到哪去了?

He usually goes to work by bike, but once in a while he goes by bus. 他通常骑自行车上班,但偶尔也乘公共汽车。

I looked everywhere for the letter, but it was in my pocket all the while. 我到处找那封信,却不知它一直在我口袋里。

七、while与when以及as之间的区别。

1. 当从句中的谓语动词是持续性的动作时,我们可以用while, when或as。

While / When / As I was walking down the street, I noticed a police car in front of the bank.我顺着马路往前走时,发现银行门前停着一辆警车。

2. 当从句中的谓语动词表示瞬间动作时,不可用while。

He was on the point of leaving when someone knocked at the door. 他正要走,这时有人敲门。

3. 如果谈论两个长动作,最常用的是while。

While John was sitting biting his nails, I was working out a plan to get us home. 约翰坐在那里咬指甲时,我想出了一个回家的办法。

不过, as是可以用来说明两种正在发展或变化的情况的,这时as引导一个持续性的动作,主句中的动作与之同时进行。

As we talked on, he got more and more excited. 我们继续往下谈的时候,他越来越兴奋。

4. 如果表示两个短动作或事件同时发生,最常用的是as或just as,也可用when。

Just as he caught the ball, there was a tearing sound. 当他抓住球的时候,有一种撕裂的声音。

I thought of it just when you opened your mouth. 就在你要说话的时候,我也想到了。

Answer 2

while的用法 while 一段时间；当……时（和……同时）；却

（1）I”ll be back for a while

（2）He fell asleep while doing homework.

（3）John was dressed in brown while Mary was dressed in blue

连词while大致有以下四种用法:

1.引导时间状语从句,意为"当……的时候;和……同时",此时的主从句谓语动作同时发生,从句谓语通常是延续性动词。如:

Mary watched TV while she ate her supper.玛丽边吃饭边看电视。

While she was listening to the radio, she fell asleep.她听着收音机睡着了。

while引导从句时,如主从句的主语一致,且从句谓语又含有be,则从句主语和be可省略。while后可直接跟现在分词、名词、形容词或介词短语。如:

We are teachers while (we are) serving as students.我们边当老师边当学生。

While (he was) yet a youth, he gained many prizes.他年轻时就曾多次获奖。

He caught a cold while(he was) on vacation.他度假时患了感冒。

2.表示对比或转折,意为"而;然而"。此时,while一般位于句中。如:

Some people waste food while others haven't enough.有些人浪费粮食,然而有些人却吃不饱。

You like sports, while I prefer music.你喜欢体育,而我更喜欢音乐。

3.表示让步,通常位于句首,意为"尽管;虽然"。如:

While I agree with your reasons, I can't allow it.尽管我同意你的理由,但我不能允许这样做。

While he loves his students, he is very strict with them.虽然他爱他的学生,可是他对学生们很严格。

While (he was) respected, he is not liked.他虽受人尊敬,但并不被人喜欢。

4.表示条件,意为"只要",其意思和用法相当于as long as。while可位于句首,也可位于句中。如:

You don't have to worry while we are here.只要我们在,你就别着急。

There will be life while there is water and air.只要有空气和水,就有生命。

While there is life, there is hope.留得生命在,不怕没希望。

5.意为"同时;也"。如:

While the book is welcomed by schol-

ars, it will make an immediate appeal to the general readers.这本书受到学者的欢迎,同时也会引起一般读者的兴趣。

6.意为"趁着"。如:

Make hay while the sun shines.晒草要趁阳光好。(谚)

Strike while the iron is hot.趁热打铁。(谚)

While the roses are yet in bloom, will you come with me to see them?趁着玫瑰花还开着,你和我一道去看看好吗

Answer 3