when与while的区别(要详细的,通俗一点的)

1个回答

  • 你说的是表示“...时”的区别吗?

    when和while都能表示这个意思,但是while后面必须用进行时态.

    另外,while可以表示“而”表示对比,这时,while后面不一定要用进行时

    如:

    He came back when I was watching TV.对

    He came back while I was watching TV.对

    He came back when I went to work.对

    He came back while I went to work.错

    表示对比关系时:

    He went to bed while I went to work.

    He was sleeping while I was working.

    换成when也说得过去,但你的老师会算你错,因为他考的就是你的辨别能力.

    另外,用while时,其两边的句子结构要对称.