人教版英语九年级上册Unit-4知识点梳理及语法讲解(共7页).doc

精选优质文档-倾情为你奉上Unit 4 I used to be afraid of the dark知识点讲解1. from time to time时常；有时，和sometimes, at times是同义表达。 常见的time短语有：what time 几点 for the first time 第一次 all the time 一直，总是；at times 不时，有时 in time 及时； on time 按时，准时 at the same time 同时 have a good/great/wonderful time玩得开心 3. Its been three years since we last saw our primary school classmates.It has been+一段时间+since+含有过去式的陈述句“自以来已经多长时间了”