my mother gave me a present for my birthday改为被动语态

问题描述:

my mother gave me a present for my birthday改为被动语态
要说明为什么!

My mother gave me a present for my birthday.(改为被动语态)
A present was given to me by my mother for my birthday.
或 I was given a present by my mother for my birthday.
give是接双宾语的,所以这句有两种改法.一种是物(礼物)作主语,一个是人(我)作主语.时态是过去时,主语都是单数,所以谓语结构由was加上过去分词given构成.原来的主语由by来表示.