Be used to指習(xí)慣于某事，用法口訣：習(xí)慣于做某事，be used to doing sth；若描述過去曾用于做某事，則用be used to do sth。
例如： 1. 他習(xí)慣每天捧著手機。 He is used to reading his phone every day. 2. 這臺電器曾是用于做飯的。 The appliance was used to cook food.

Be used to do sth，英文里head下面落；已經(jīng)習(xí)慣做某事，用此搭配要記??；be used to doing sth，習(xí)慣于做某動作。

習(xí)慣做某事，過去分詞做定語。