I happened to be upstairs at dusk.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/06/06 06:36:53

I happened to be upstairs at dusk.
这里的upstairs是什么词性的?前面有be的.这里的be是助词还是有实义的?如果upstairs还有其他词性,也请帮我造个句好吗?

这里是形容词前面的be是助词（也叫系动词）,这句话是：我碰巧在黄昏上楼.
I是主语happen是不及物动词,happen to短语是碰巧的意思to-----dusk是短语这里相当宾语.其中的be upstairs是短语意思是上楼.
upstairs还有副词名词词性
They tiptoed upstairs so as not to wake the baby.
他们踮著脚上楼,生怕把孩子吵醒.（这是副词）
Let's go upstairs where we can be a bit more private.
咱们上楼吧,那里没什麽外人.（形容词）
名词不常用不要求了解

I happened to be upstairs at dusk when the window was open.这英语翻译1.I happened to be upstairs at dusk when the window was 英语翻译1.I happened to be upstaire at dusk when the window was Another time five months ago,I happened to be upstairs at du 分辨词性I happened to be upstairs one evening I didn’t go downst 英语翻译Another time five months ago,I happened to be upstairs a I like to see the sun _____(sink) at dusk 翻译:I happened to be at the station ,when it happened She happened to be not at home.she happen not to be at home. Peter was happened to be at home that day.为什么是was happened而不 I happened to be sitting next to an established programming I happened to meet Mr.Smith at the school gate.