• when和while的區別

    時間:2022-03-24 02:07:12 科普知識 我要投稿
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    when和while的區別

      when可用作并列連詞,表示“這時(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。以下是小編精心編輯的when和while的區別,希望能幫助到大家。

      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...時候”的意思。

      主從句都是長時間的動作時,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不用于短時間的動作(這個大家應該都知道)

      when和while的區別

      (1)when即at the time that…,指「在……之時」,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」,但其所表示的「同時」須有「持續性」,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「時間點」(a point of time),例如:

      錯:While I finished my letter, I posted it.

      因為動作具有「瞬間性」。

      (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 dont think that it is impossible.

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