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Mother'Day is celebrated at different times in different cou

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/13 06:28:49
Mother'Day is celebrated at different times in different countries.
请问这句话为什么要用“is celebrated”而不用“celebrates”、“celebrate”、“was celebrate”呢?
这句话是被动句句中省略了主语,mother's day是被庆祝的,所以用is celebrated表被动语态,而不用celebrates或celebrate
.若说我们庆祝mother's day 就是主动句就可用We celebrate mother's day 或People celebrate mother's day
并且庆祝mother's day是表示这个现象普遍存在,过去现在将来都在庆祝所以用is celebrated.而was celebrated只表示过去庆祝.