作业帮关于when的用法
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/23 23:25:10
when i was waiting to across the road ,i saw an accident. when i saw her ,i was thinking my mum.两句中when为什么这样用？
解题思路： 第一句话中when i was waiting to across the road ,i saw an accident.应该用while ,即While I was waiting to across the road ,I saw an accident.第二句话是正确的。
解题过程：
同学你好，根据when的用法可知： when 分句前面的分句使用过去进行时。 如： （ 1 ） He was still smiling when the door opened and his wife came in. 他正笑着的时候，门突然开了，他妻子走了进来。 （ 2 ） I was thinking of this when I heard my name called. 我正想着这件事时，突然听到有人叫我的名字。 因此，第一句话中when i was waiting to across the road ,i saw an accident.应该用while ,即While I was waiting to across the road ,I saw an accident.第二句话是正确的。
解题过程：
同学你好，根据when的用法可知： when 分句前面的分句使用过去进行时。 如： （ 1 ） He was still smiling when the door opened and his wife came in. 他正笑着的时候，门突然开了，他妻子走了进来。 （ 2 ） I was thinking of this when I heard my name called. 我正想着这件事时，突然听到有人叫我的名字。 因此，第一句话中when i was waiting to across the road ,i saw an accident.应该用while ,即While I was waiting to across the road ,I saw an accident.第二句话是正确的。