外研版新九年级英语上册语法知识点汇总(共25页).doc

精选优质文档-倾情为你奉上膂外研版九年级英语上语法汇总1.2. 蚆现在进行时的用法芇 现在进行时主要用来表示现在活当前一段时间内正在进行的动作或者存在的状态。莁例如：Im watching TV now.荿例如：Lucy is preparing for the test these days, but now she is playing the piano.蒈现在进行时肯定句的结构：主语+be（am/is/are）+动词的现在分词（-ing）羆以动词work为例：蒁肯定式螀I am working.腿He/she/it is working.螅We/You/They are working.薁疑问式膀Am i working?薇Is he/She/It working?薃Are we/you/they working?蚁否定式薁1,I am not working.艿2,He/She/It is not(isnt) wor