精选优质文档-倾情为你奉上Unit 1 Past and present1.1 Comic strip & Welcome to the unit1:past and present(1) past n. 过去,以前;in the past 在过去adj. 过去的,以前的;in the past few years 在过去的几年里prep. 经过 walk past the post office走过邮局In the past, there was no underground in Nanjing.Lets not make the past mistakes. When I walk past the post office, I see a bird flying over the tree.(2)presentadj.现在的; 目前的; 出席的n.现在; 礼物; at present 现在; a present for you=a gift for you给你的礼物vt.介绍; 出现; 提出; 赠送;