1．contribute 不论用作及物动词或不及物动词后面现在通常接 to 和动名词，很少接不定式。例如：They contributed much time to founding（很少to found）a university. 和 Exercise will contribute greatly to improving（很少to improve）your health.

2．contribute of...作“贡献……的一部分”解。例如：Every one of them is ready to contribute of his talent.