poor little girl对吗?还有为什么 consider doing 而be considered 就变成to do了?

1.poor little girl 是对的,意思是“可怜的小女孩”,很多美剧中都有这个说法.
2.consider doing 是“考虑做某事”,如We're considering buying a new car.我们正考虑去买一辆新车.因为它是及物动词……并且习惯用法……所以用doing
而be considered to do 是“什么被认为 什么”
如 He's generally considered to have the finest tenor voice in the country. 现在公认他是该国最佳的男高音歌手.
因为……这是被动的,所以用to do……