used to / be used to used to + do:"过去常常"表示过去习惯性的动作或状态,但如今已不存在.例如: Mother used not to be so forgetful.老妈过去没那么健忘. Scarf used to take a walk.斯卡夫过去常常散步. be used to + doing:对……已感到习惯,或"习惯于",to是介词,后需加名词或动名词.例如: He is used to a vegetarian diet. Scarf is used to taking a walk.斯卡夫现在已习惯于散步了.
used to 的 used是作为形容词,指习惯的意思,因为是形容词所以前面要加动词,例如 I am used to walking at this speed. I cannot walk more slowly.这种速度我走惯了,慢不下来。 而 used to do 中的used 是作为动词用的,例如I used to live in Tainan but now I live in ...