过去进行时语法 PPT
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语法现在进行时1.构成:am/is/are +doing2.标志词: now, look , listen , at eight3.用法:(⑴表示(说话时)现在正在进行或发生的动作。
eg. Mother is watching TV now.listen!John is singing in his room.⑵表示当前一段时间内的活动或现阶段正在进行的(不一定说话时在进行的)动作。
eg. Mr Green is writing another novel.⑶下列词的进行时表示将来(come, go, leave, start, arrive, return, fly---)eg. The train is leaving in half an hour.Tom is leaving for shanghai tomorrow.The bus is coming.She is running.They are swimming.•He is playing the piano•He is playing the pianoTom play football.is ingingLucy is read a book.过去进行时1.构成:was/were +doing2.时间状语:this time yesterday, at seven this evening等连用。
3.用法:⑴表示过去正在进行或发生的动作。
eg. We were talking about you just now.⑵用于故事中的情节,场面描述。
一个长动作延续时,另一个短动作发生。
eg. When she came in , I was reading a newspaper.⑶动词come, go, leave, start, arrive, return, fly---等过去进行时表示过去将来时。
cook a mealat this time yesterdayHe was cooking at this time yesterday.have a classyesterday afternoonThey were having a class yesterday afternoon.过去将来时1.构成:would +dowas/were +going to +do2.用法:表示过去某一时间看将要发生的动作或存在的状态,常用于宾语从句中。