be used to, use to do和be used to doing的区别

(1)used to do表示“过去常常做某事”

I used to play football after school.过去我常常在放学后踢足球。

(2)be used to do表示“被用来做某事”

This knife can be used to cut things.这把刀能够被用于切东西。

(3)be used to + doing表示“习惯于……”,to是介词,后需加名词或动名词。

He is used to living in the country now.他现在习惯了住在农村。

【典型考题】

My retired father is used to _____ his two dogs early in the morning.

A. exercise B. exercising C. exercised D. exercises

【答案】B。解析:考查动词be/get used to doing的用法。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“过去常常做某事”,to后跟动词原形。句意:我退休的父亲习惯一大早去煅炼他的两条狗。故选B。

be used to, use to do和be used to doing的区别