“动词+间接宾语+直接宾语”改为被动时,可以用间接宾语做被动句的主语
His teacher gave him a dictionary.→He was given a dictionary by his teacher.(老师给他一本字典→他得到老师一本字典)
也可以用直接宾语做被动句的主语,但是需用to或者for引出原句的间接宾语
His teacher gave him a dictionary.→A dictionary was given to him by his teacher.(老师给他一本字典→一本字典由老师送给了他)
“动词+宾语+动词原形”改为被动时,动词原形前要加to
The boss made the poor man work 12 hours a day.→The poor man was made to work 12 hours a day.(老板让这个可怜的人一天工作12小时→这个可怜人被迫一天工作12小时)
“动词+…+介词”改为被动时,介词一般在原位不动
The girl takes good care of her little brother.→The girl’s little brother is taken good care of by her.(女孩照顾小弟弟→女孩的小弟弟由她照顾着)
“be+过去分词”未必表示被动语态,而可能是系表结构
He is pleased / worried / tired /…….(系表)(他高兴/焦虑/疲劳……)
