beusedtodo与beusedfordoing有什么区别

Question

如题所述

Answer 1

be used to do 被用来做什么
如：The knife is used to cut apples.
be used for doing 某件物品、东西用来做什么之用。
The knife is used for cutting apples.
区别在于宾语一个是动词不定式，一个是动名词。

Answer 2

1 be uesed to 过去常常做....；
He used to be a teacher. Now he is a manager of that factory.
他过去是老师，现在是一家厂子的经理。

2 be used for doing 被用于做......。
The book is used for learning sewing.
这本书用来学习缝纫技术。本回答被提问者采纳