精品一区二区中文在线,无遮挡h肉动漫在线观看,国产99视频精品免视看9,成全免费高清大全

when和while的區(qū)別

時(shí)間:2024-08-31 08:13:44 學(xué)人智庫 我要投稿
  • 相關(guān)推薦

when和while的區(qū)別

when可用作并列連詞,表示“這時(shí)(突然)”;while也可以用作并列連詞,表示“而”“卻”(表示對比);但as則沒有類似用法。本文是大學(xué)網(wǎng)unjs.com小編精心編輯的when和while的相關(guān)內(nèi)容,希望能幫助到你!

when有鑒于之意,如:

Why do you need a new job when you have got such a good one?

when 有雖然、盡管等讓步之間,如:

They kept digging when they must know there was no hope to escape.

while 有對比之意,譯為“而”。如:

That region has plenty of natural resouces, while this one has none.

while 有表示“部分同意”之意,如:

While she is likable girl, she is difficult to work with.

when和while 都有“在...時(shí)候”的意思。

主從句都是長時(shí)間的動作時(shí),只用while;

While she read the paper, I cleared up the kitchen.

涉及到年齡和生活的不同階段,用when;

When I was a child , I lived in London.

while不用于短時(shí)間的動作(這個(gè)大家應(yīng)該都知道)

when和while的區(qū)別

(1)when即at the time that…,指「在……之時(shí)」,例如:

When I finished my letter, I posted it.

我寫完信便寄出。

(2)while即at the same time that…,亦指「在……之時(shí)」,但其所表示的「同時(shí)」須有「持續(xù)性」,例如:

We must strike while the iron is hot.

我們必須趁熱打鐵。

(3)while不可用來表示「時(shí)間點(diǎn)」(a point of time),例如:

錯(cuò):While I finished my letter, I posted it.

因?yàn)閯幼骶哂小杆查g性」。

(4)while可用于對比(contrast),when則不可,例如:

Mary is in blue while Cindy is in black.

瑪麗穿藍(lán)色衫,而仙蒂穿黑色衫。

(5)while又可表示「只要」(as long as),例如:

While there is life, there is hope.

留得青山在,不怕沒柴燒。

(6)再可表示「盡管」(although),例如:

While I admit that the task is difficult, I don't think that it is impossible.

[when和while的區(qū)別]

【when和while的區(qū)別】相關(guān)文章:

while的用法08-12

whether和if的區(qū)別11-17

爽膚水和柔膚水的區(qū)別11-07

本票和匯票的區(qū)別10-15

alone和lonely的區(qū)別07-26

除和除以的區(qū)別10-20

js和css的區(qū)別09-26

函和請示的區(qū)別08-14

元宵和湯圓的區(qū)別05-20

童話和神話的區(qū)別07-26