He is lucky to win the first prize.这句话中的动词不定式作什么成分,

问题描述:

He is lucky to win the first prize.这句话中的动词不定式作什么成分,

He is lucky to win the first prize.
他很幸运,获得了一等奖.
解析:这里的不定式是做原因状语,表示他幸运的原因.
祝开心~!