1、 When they were making the famous moon-walk,millions of people watched them through television.2、When we finally arrived on Holyhead nearly everyone was sleeping为什么两句话when后面的动词一个有ing一个没有,而且跑到后一句
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1、 When they were making the famous moon-walk,millions of people watched them through television.
2、When we finally arrived on Holyhead nearly everyone was sleeping
为什么两句话when后面的动词一个有ing一个没有,而且跑到后一句去了呢?
简单一点说,一个事件(瞬发)在一个持续事件(持续)发生的时候突然发生,那么持续事件用过去进行时,瞬发事件用过去时.
例如:我写作业(持续)的时候下雨(瞬发)了,这里写作业就要用进行时,下雨要用一般时
这是过去进行时,你看清楚ing是描述哪一个主体
When they were
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they,what,doing,teacher,the,in,came,were,when
when they were young 是什么意思?要准确的,谢了!
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