4、as/were+doing+其它.否定句:主语+was/were+not+doing+其它.一般疑问句:Was/Were+主语+doing+其它?答语:Yes,主语+was/were./No,主语+wasn’t/weren’t三点剖析一、考点:过去进行时的基本用法和时间状语。二、重难点:when和while引导的时间状语,主句和从句动词时态问题。1.过去进行时描述一件事发生的背景;即一个动作延续时另一个短暂性动作同时发生,用when(用延续性动词或短暂性动词都可以)。例:I was watching TV when the bell rang.我正在看电视突然铃响了........
5、......2.过去进行时表示两个延续动作在过去某一时刻同时进行,用while(只用延续性动词)。例:The students were reading while the teacher was checking their homework. 老师在批改作业的时候,学生们在读书。题模精选题模一:动词现在分词变化规则例1.1.1用所给动词的正确形式填空1.He_________(lie)onthegroundatnineyesterdayevening.2.What_________you_________(do)atthattime?3.I_________(wait)fory