be used to ,be used for有什么区别

Question

be used to 后跟动词的那种形式，be used for后跟动词的那种形式

Answer 1

【used to do sth】和【be used to do sth】
①used to do 过去常常（表示现在不再）
eg: I used to swim in the lake near my village when I was young.
②be used to do 被用于。。。=④be used for sth./doing sth.
eg: Wood can be used to make paper.
③be used to doing习惯于做某事
eg: My grandpa is used to going for a walk after dinner.

③和①②很容易区别，而②可以认为和be used for doing sth意思一样。
【be used to do 和be uesd for sth /doing sth.都可以表示“被用来……（表目的）”区别如上， 动词的形式不同。
e.g. The knife is used to cut apples.
=The knife is used for cutting apples. 】

Answer 2

be used for意为“（某物）被用做……”其后接名词、代词或动名词。如：

（1）This kind of bamboo can be used for water pipes . 这种竹子可用作水管。

（2）A knife can be used for cutting bread . 刀可用来切面包。

be used to do sth. 也可表示“（某物）被用做……”，但其后接动词原形。如：

（3）A hammer is used to drive nails . 锤子是用来敲钉子的。

Answer 3

be used to 加动词ing形式。意思是：现在习惯于做某事

Answer 4

to 加动词不定式，for 加名词结构。

Answer 5

①used to do 过去常常（表示现在不再）eg: I used to swim in the lake near my village when I was young.②be used to do 被用于。。。=④be used for sth./doing sth.eg: Wood can be used to make paper.③be used to doing习惯于做某事eg: My grandpa is used to going for a walk after dinner.