Question

get used to doing sth.和used to do sth.有什么区别？

Answer 1

be/get used to doing sth.表示习惯于做某事或习惯于某事,to是介词,后面要跟名词、代词或动名词.而used to do sth.则表示过去常常,to后跟原形动词。
如：Now he is used to getting up early.
现在他已经习惯早起了。
He used to get up early.
过去他经常早起.（意味着如今他不再早起了。）
You'll soon get/be used to hard work.
你会很快习惯于艰苦的工作的。
be used to do表示“被用来做某事”.如：
Wood is often used to make desks and chairs.木头常常被用来制作桌椅。
be used to doing表示“习惯于”某一客观事实或状态,不强调动作,to是介词.如：
She is not used to eating Chinese food.她不习惯吃中餐。

Answer 2

get used to doing sth逐渐习惯于做……
used to do sth过去曾经做……
意思不同，结构不同。