关于be about to...

来源：学生作业帮编辑：大师作文网作业帮分类：英语作业时间：2024/11/17 18:05:16

关于be about to...
yesterday morning he （）go out （）someone knocked at the door.
A.was about to ；when
B.was going to ；when
答案是A 不是说be about to不和时间连用的吗? 题目有yesterday morning 啊! 解释说是be about to...when ..的句型.难道用be going to 的时候就不能用when啊?
帮帮忙啊感激不尽

解析：was/were about to do...when意思为“正要/正准备做某事,就在这时……”.再如：
We were about to set out when it began to rain.我们正要动身,就在这时开始下雨了.
句意：我正准备出去,这时一位不速之客来拜访我.
而be going to 是将来式,而when引导的从句是过去式,所以不能和when用在一起.
明白了吗?

关于be about to... 关于be concerned about be about to do be about to be to和be about to区别 be about to的用法 nothing to be worry about to be about+动词不定式关于be about to,will,be going to三者的区别,用法及辨析.要权威一点哟~ be about to do和be about doing 区别 be going to,be about to,be doing 的区别一道关于be about to和will区别的英语题,专业进!