精选优质文档-倾情为你奉上U 2 I used to be afraid of dark.专心-专注-专业一、单元语法要点：used to bedo sth. 的用法1）used to be + adj.：“过去总是（怎样的）”e.g. She used to be shy. 她过去是害羞的。used to do sth. “过去常常做某事”，强调过去习惯性的行为或动作（但是现在没有这种行为或动作了）。e.g. My uncle used to walk along the river. 我叔叔过去总是沿着河岸散步。 考点1：用did变否定句和问句 否定句式：主语+ did not use to do (美式常用)e.g. You didnt use to drink. 一般疑问句式：Did +主语 + use to do?e.g. Did you use to go swimming in the river? 反义疑问句：e.g. He used to l
