be used for、be used to、used to、get used to的区别:be used for + 名词/代词或动名词, be used to + 动词原形,表示两个短语意思相近,表示“用于…”。 used to + 动词原形,表示“过去常常”,否定式可以是“didn’t use to”也可以是“usedn’t to”;get/be used to + 动名词,表示“习惯于….”。
如:A knife can be used for cutting things.(刀可以用来割东西) A knife can be used to cut things.(刀可以用来割东西) He used to borrow novels from the library when he was at school. (他上学时常常在图书馆借书) He is used to getting up early in the morning. (他习惯早起)