英语语法be的用法 Spring Festival is considered to be the first day in Chinese lunar calendar

问题描述:

英语语法be的用法 Spring Festival is considered to be the first day in Chinese lunar calendar
Spring Festival is considered to be the first day in Chinese lunar calendar.
be动词 只有不及物的用法 这里be 是 助动词?
be的用法是什么?

be 是系动词,consider sth./sb. to be是个不定式用法,意思是“认为……是……”,这里用了被动语态.to be 做spring festival的补语.