初中英语人教版八年级下册过去进行时ppt课件.ppt

过去进行时,1 含义：（概念） 表示过去某个时刻正在进行的动作。（或过去一段时间正在进行的动作）2. 句子结构: ： be (was/were) + doing即：主语 + was/were + doing sth. + 时间状语,3. 时间状语词:at 8 oclock last night/this time yesterday /at 5:00 yesterday afternoon/at that time, then 等连用( 或者用另一动作来表示过去的时间),过去进行时, 表示过去某个时刻正在进行的动作。例句： What were you doing at nine last night? 昨晚九点你正在干什么？,I was taking a shower at nine last night. 昨晚九点我正在洗澡.They were playing basketball at 5 oclock yesterday afternoon. 昨天下午五点他们在打篮球。 ：表示在过去某一时间内正在进行的动作。 She was writing a letter when I came in. 我进来时，她正在写信。 The barber was cutting my hair when they arrived. 他们到达时，理发师正在给我剪头发。,观看动画教学,What were they doing at 10:30Last Monday ?,They were running.,What were you doing at 10: 10 yesterday morning?,I was going shopping.,Where was she at 9:00 yesterday?I think she was in/atShe was sweeping the floor at that time.,at 9:00 last night,Tom,What _ Tom _ at 7:30 this morning?,She _ _ _ at 7:30 this morning.,was doing,was cooking breakfast,One point,What _ they _ from 8 to 9 last night?,They_from 8 to 9 last night.,were doing,were talking on the phone,One point,What was Alice doing when I got out of the shower from the bathroom?,She was playing the piano.,Talk about the pictures,What were they doing yesterday afternoon?,1,2,3,I wasWe were,cooking a meal.playing volleyball.having a PE class.watching TV.working in the chemistry lab.Sweeping the floor.making a model .feeding my dog.,What were you doing,last night?last Saturday?at ten oclock?yesterday morning?at noon yesterday?Yesterday afternoon?,Pairwork:,Patterns:A: What were you doing at nine oclock last Sunday morning?B: I was sleeping. How about you?A: I was doing my homework.B: You are kidding,when 和while的用法区别,1.when 既指时间点，也可指一段时间; while只指一段时间. 2.when 说明从句的动作和主句的动作可以是同时，也可以是先后发生； while 则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。,When the UFO landed, the boy was walking down the street.,=While the boy was walking down the street, the UFO landed,My mother was cooking dinner while my father was watching TV.,(1) “当的时候”,如后面连接的动词为进行时态,则用while多于用when。而when通常与瞬间性动词或延续性不强的动词连用。(2) 如果while前后的动词都是进行时态,while可译为“与此同时” I was reading while my brother was drawing.,A: What were you doing when the traffic accident happened?,B: We were having a party.,traffic accident,What were they doing when the plane took off?,They were swimming in the river.,take off,What was Alice doing when I got out of the shower from the bathroom?,She was playing the piano.,观看动画教学,过去进行时着重描述当时正在持续进行的动作，它的特点是：暂时，持续和未完成，强调过程；一般过去时表示发生过的动作或存在的状态，即表示动作发生过，而且已经结束了，强调结果。,过去进行时与一般过去时的区别,过去进行时侧重表示动作延长的时间长度; 一般过去时表示过去某时发生过某事，侧重说明事实。,He _ a letter last night. （过程描写，他一直写，不一定完成） He _ a letter last night and posted it this morning （只说明他写了的事实，动作已结束）,was writing,wrote,相同的过去时间可能会有不同时态,注：下列几类动词通常不用过去进行时。 表示状态的动词 be； 感官动词：feel, hear, see, smell, taste等; 表示思维或心理状态的动词：believe (认为), forget, consider, know, remember, hope, wish, want 等； 表示所属关系的动词：belong, have, own, hold (容纳)等。,Exercises,Choose “when” or “while” to fill in the blanks. (1)I was walking in the street _ the accident happened. (2)_ you have a meeting, you should turned off your mobile phone. (3)_ you have PE class, you should wear sports shoes. (4)_ I was doing my homework, the telephone rang. (5)_ it was raining, the plane took off. (6)_ the teacher was speaking to class, Nick stood up suddenly.,when,when,when,while,while,while,用所给动词的适当形式填空：1. We _ (wash) our clothes at six yesterday evening.2. While Ann _ (talk) with her desk mate, the teacher came in.3. Look! Mary _ (clean) the room.4. What _ you _ (talk) about just now?-We were talking about the movie.5. They _ (move) to Paris last month.,6. He _ (read) a novel from 8 to 12 yesterday morning.7. What _ he _ (do )at five oclock yesterday afternoon.8. He _ (watch) TV when I came in.9. She _ (do) her homework while her mother _ (cook).10. He _ (wait) for me when the train arrived.,Summary:,过去进行时的构成：,1.概念:表示过去某个时刻或过去一段时间正在进行的动作.2.公式:主语+was/were+doing sth +时间状语3.指示词:then, at that time, once, 等连用,或者用另一动作来表示过去的时间.,