精选优质文档-倾情为你奉上Unit1 单元易错题集易错点1：used to do sth. be used to doing sth. be used to do sth的区别用所给单词的适当形式填空。1） We used to _ ( go) swimming last year.2） I am used to _ (run) every morning.3） Bamboos are used to _ (build) houses there.4） They have been used to _ (live) in the countryside.【答案】1）go2）running3）build4）living【解析】used to do sth表示“曾经/过去常常做某事”；be used to doing sth 表示“习惯于，适应于”，to是介词；（sth.）be used to do sth.表示（某物）被用来做某事。易错点2：since的用法选择How long
