过去进行时语法PPT课件
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语法精讲八:动词时态(三)过去进行时一、定义过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作,常和表过去的时间状语连用。
Eg. I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
二、构成句式1.肯定形式:主语+was/were+V-ing2.否定形式:主语+was not (wasn't)/were not (weren't)+V-ing3.疑问形式:Was/Were+主语+V-ing三、基本用法、1.过去进行时表示过去某一段时间或某一时刻正在进行的动作。
常与之连用的时间状语有,at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last night / Sunday…),when sb. did sth等时间状语从句,Eg. What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么?I was cooking when she knocked at the door. 她敲门时我正在做饭。
2.当两个一长一短的动作在过去某时间同时发生时,用过去进行时表示较长的动作。
过去进行时可用于主句,也可用于从句。
Eg. It was raining hard when I left my office. 当我离开办公室时,雨下得正大。
They were watching TV when the lights went out.停电时,他们刚好在看电视。
3.过去进行时表示过去将来的动作Eg. She went to see Xiao Li. He was leaving early the next morning.她去看小李。
他第二天一早就要离开此地了。
过去进行时一、概念过去进行时表示过去某时正在进行过去进行时的动作(不强调是否完成)。
二、结构1. 过去进行时由“助动词was/were + 现在分词”构成例如: We were having supper when the phone rang. 我们正在吃晚饭时电话响了。2. 过去进行时的否定式由“was/were not +现在分词”构成。例如: This time yesterday Jack was not watching TV. He was repairing his bike. 昨天这个时候,杰克不是在看电视,而是在修理自行车。3. 过去进行时的疑问式由“was/were + 主语+ 现在分词?”构成。例如: Were you playing basketball at four yesterday afternoon? 昨天下午四点你们在打篮球吗?三、基本用法1. 过去进行时的基本用法主要表示过去某一时间正在进行的动作。
如:He fell asleep when he was reading. 他看书时睡着了。
2. 过去进行时表示现在主要是为了使语气委婉、客气。
如:I was wondering if you could give me a lift. 我不知你能否让我搭一下车。
【注】一般过去时也有类似用法,但比较而言,用过去进行时显得更客气,更不肯定。
3. 过去进行时表示感情色彩与现在进行时相似,过去进行时也可表示满意、称赞、惊讶、厌恶等感情色彩,也通常与always, forever, continually等副词连用。
如:They were always quarrelling. 他们老是吵架。
4. 动词be的过去进行时也可表示过去一时的表现或暂时的状态。
He was friendly. 他很友好。
(指过去长期如此)He was being friendly. 他当时显得很友好。
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。