问题描述: when+( )动词,什么时态? while+( )动词,什么时态? 简洁重点的说,不要复制那一大堆! 1个回答 分类:英语 2011-04-21 问题解答: 我来补答 解题思路: 如下解题过程: when+( 瞬间 )动词,一般过去时态。 while+(延续性 )动词,过去进行时态。 举个例子:我们在吃饭的时候有人敲门了。 We were having Supper when some one knocked at the door. 吃饭是延续性动词,敲门是瞬间动词。中间用when,如果换成考查while,句子应当是: Some one knocked at the door while we were having Supper.最终答案:略 展开全文阅读