1、过去进行时：表示在过去某一时刻或某一段时间内进行或发生的动作。其形式为 was/were+V-ing。常与表示过去的时间状语连用，如：last night，last Saturday 等；或者与 when,while,as引导的过去时间状语用。 过去进行时的结构：1. 过去进行时由“主语+was/were + 现在分词”构成eg: 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“主语+was/were not +现在分词”构成eg: This time yesterday Jack was not wa
2、tching 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”组成eg: Were you playing basketball at four yesterday afternoon? 你们在干什么昨天下午的时间啊回答我啊? 过去进行时和一般过去时的区别：一、二者概念理解一般过去时叙述旧事，过去进行时描述背景。A、一般过去时1.过去状态、动作或事件 He went to Beijing the other day.（带具体时间）2.过去的习惯a would ,us
3、ed to与过去时 would 表间断性不规则的习惯，常带频率时间 used to 表一贯性有规律的习惯They used to meet and would sometimes exchange one or two words. He smoked a lot two years ago. （过去行为）bWould 用于文中不用于句首，只表过去习惯。 Used to 表今昔对比的含义，叙述习惯动作可与 would 换用。When he was a boy , he would often go there . （叙述过去） She isnt what she used to be. (今昔
4、对比)c 表示状态时一般只用 used to Tom used to be fat /There used to stand a tree there. (状态)dwas (were) used to +ving表示“合适于，适应于” He used to work at night . (“习惯”表经常) He was used to working at night. (习惯表适应)3.过去的经历，平行动作，依此事件用一般过去时。 He sat there and listened to the radio.(依此发生)4.客气委婉的语气，用于情态动词，助动词和 want , wonder
5、 , hope 等 How did you like the film? / Could you help me? 过去进行时1.在过去某阶段或某一时刻正在发生 What were you doing at 8:30 last night? (过去某时刻正在发生)2.性动词用过去进行时表示按计划、打算 During that time he was going with us.(表示打算)3.lways ,often ,usually 等连用表喜爱，讨厌等感情色彩。 He was always Changing his mind.二、区别A. 进行时表某一行为的“片断”一般时表示行为的“整体”
6、和存在的状态。 I was reading the book at that time. (未读完， “读”的片段) I read the book yesterday. (已读完，表整个“读”)B、一般持续时间状语多与进行时连用 It was raining all night.(优先用 was raining ,rained 为持续动词，故也可使用) He was writing a letter the whole of afternoon. (短暂动词与持续时间连用，表反复，连续发生，不可用一般过去时)C、while 时间状语从句中用短暂动词时只能用进行时。 例：He broke a
7、chair while he was jumping up and down.D、While 所在主从句动作大致持续相等时主从句一般都用进行时，但若是持续动词可都用一般过去时，两个动作一长一短时短的用一般时，长的用进行时。 I was cooking the dinner while he was playing the piano.(平行) I cooked the dinner while he played the piano. I saw him while I was walking to the station.过去进行时的基本用法:过去进行时的基本用法主要表示过去某一时间正在进行
8、的动作。如：He fell asleep when he was reading. 他看书时睡着了。2. 用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
9、是吵架。4. 动词be的过去进行时动词 be的进行时也可表示过去一时的表现或暂时的状态。比较：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(指当时一时的表现) 特殊用法1、当句子意思很清楚时，我们也可以把两个动词都换成一般过去时We listened carefully when the teacher read the text. 老师读课文时，我们都仔细地听着。2、表示按计划、安排过去将要发生的事。用于 come,go,leave,start,arrive等表示位置转移的动词时，也可以用过去进行时表示过去将要发
10、生的动作。如：He told me that he was going soon. 他告诉我他很快就要走了。3、表示故事发生的背景。It was snowing as the medical team made its way to the front. 那支医疗小组往前线行进时，天正下着雪。4、表示一个新的动作刚刚开始。过去进行时可用来引出一个新的动作，这种用法颇有点儿像镜头转换。Five minutes later,he stood in the doorway smoking a cigarette. 5分钟后，他已站在门口抽着烟。5、过去进行时还可和 when结构遥相呼应，含有意外之意。I was walking in the street when someone called me.我正在街上走时突然有人喊我。6、用来陈述原因或用作借口。She went to the doctor yesterday. She was having a lot of trouble with her heart.她昨天去看病了。她患了很严重的心脏病。7、与 always,constantly等词连用，表示感情色彩。The girl was always changing her mind. 这女孩老是改变主意。
