1)动作未发生,被修饰的名词在逻辑关系上是不定式动作的宾语。不定式用主动形式还是被动形式,由句子的主语与不定式的逻辑关系决定
It seems to me that I have nothing to take home to my children.
在我看来今天我们没有东西可以带给孩子了
2)被修饰的词为抽象名词,如need, way, reason, right等,不定式解释其内容。
There is no need to quarrel with him
3)被修饰的词,其前有序数词first, second, last, only作定语
He is always the first(one)to get to school every day.