精选优质文档-倾情为你奉上现在进行时与过去进行时一、定义：表示在过去某一时刻或某一段时间内进行或发生的动作。二、结构：肯定句主语+be（was, were)+现在分词+其他。如：My son was learning English in US last year.否定句主语+be (was, were) not+现在分词+其他。如：It was not raining then.一般疑问句：Be (Was, Were)+主语+现在分词+其他？三、标志词：at that time/moment,(at)this time yesterday (last night/Sunday/week), at+点钟+yesterday (last night / Sunday)，等四、词形变化（ing）五：句型 1.过去进行时+when+一般过去时 2.过去进行时+while+过去进行时练习题：1.He _ (not work) at that time.2.When the teacher
