题目内容：

contribute sth to也可以说成contribute to
另外还有contribute sth towards和contribute towards sth
这是新概念2册85课原文：
I have just received a letter from my old school informing me that my former head- master,Mr Regmald Page,will be retiring next week.Pupils of the school,old and new,will be sending him a present to mark the occasion.【 All those who have contributed towards the gift will sign their names in a large album which will be sent to the headmaster's home.】We shall all remember Mr Page for his patience and understanding and for the kindly encouragement he gave us when we went so unwillingly to school.A great many former pupils will be attending a farewell dinner in his honour next Thursday.It is a curious coincidence that the day before his retirement,Mr Page will have been teaching for a total of forty years.After he has retired,he will devote himself to gardening.For him,this will be an entirely new hobby.But this does not matter,for,as he has often remarked,one is never too old to learn.
【】中就有contribute towards的用法，

优质解答

不可以,只能是contribute sth towards或contribute sth to
towards等同于to
contribute是及物动词,后面一定要加宾语

追问：

看我的问题补充啊，谢谢，里面有contribute towards sth的例子。

追答：

那个是固定词组，towards等同于to，介词 意思有差别 contribute to 译为 有助于，贡献 而contribute sth to 译为 奉献 动作发出的角色不同 contribute sth to发出动作的一定是人，contribute to动作发出者是物或人 不知道你注意到没有，contribute没有被动的形式。所以想要用contribute sth to表被动就是contribue to的形式，主语变了