高中英语语法 ---过去完成时（39张）ppt课件

1、过去完成时过去完成时;神马是过去完成时？神马是过去完成时？表示过去发生的一个动作之前曾经完成的动作，就是过去完成时。;警察抓小偷警察抓小偷当警察赶到的时候，小偷早曾经跑了。当警察赶到的时候，小偷早曾经跑了。When the police arrived, the thieves had already run away.;在妈妈进门之前，我早就把电脑关了。在妈妈进门之前，我早就把电脑关了。偷偷玩电脑偷偷玩电脑After I had already turned off my computer, my Mom came in.Before my Mom came in, I had alread

2、y turned off my computer.;这就是过去完成时这就是过去完成时NowPastFutureAB有两个动作都发生在过去，先后发生，先发生的用过去完成时，后发生的用普经过去时。;过去的过去过去的过去NowPastFutureAB如今完成时：have/has+done过去完成时： had +done had not +done had been done;When the police arrived, the thieves had already run away.Before my Mom came in, I had already turned off my compu

3、ter.After I had already turned off my computer, my Mom came in.找标志词找标志词;by +过去：过去：by the end of +last year, by the end of last term, by the time you arrived过去完成时标志词过去完成时标志词before, after, when, by, hardlywhen(刚要刚要.就就)no sooner than我们刚要任务，天就下起雨来。我们刚要任务，天就下起雨来。1.We had hardly begun our work when it beg

4、an to rain.Hardly had we begun our work when it began to rain.We had no sooner begun our work than it began to rain.No sooner had we begun our work than it began to rain.;过去完成时还可以表示对过去的虚拟，表示过去完成时还可以表示对过去的虚拟，表示未能实现的希望、愿望等未能实现的希望、愿望等, 常用的词有常用的词有expect, hope, mean, suppose, think 等。等。过去完成时表虚拟过去完成时表虚拟我本

5、来想周末做完作业的，结果我朋友过生日。我本来想周末做完作业的，结果我朋友过生日。I had wanted to finish my homework, but my friends had a birthday party.;1. It was the first time that + had done特殊句式特殊句式那是他第一次到眉山。那是他第一次到眉山。It was the first time that he had been to Meishan.2. It was + 时间段时间段+since+ had done那时他们曾经在一同三年了。那时他们曾经在一同三年了。It was th

6、ree years since they had been together.;1. By nine oclock last night, we _ (get) 200 pictures from the spaceship.2. I _ (am) at the bus stop for 20minutes when a bus finally arrived.3. The bus_ (leave) by the time I got there. 4. By the time he_(be) 14, his grandfather had been away.5.It was the fir

7、st time that he_(talk) with foreigners.6. I had no sooner left than she _ (call).趁热打铁趁热打铁had gothad beenhad leftwashad talkedcalled;6:00(eat up) 7:00(get up) present 6:00(eat up) 7:00(get up) present Last Sunday, I had an unlucky day.By the time I _, my dog _ up all my breakfast on the table. got up

8、 had eaten An Unlucky Day Practice 1;9:159:35 presentThen I went to see the film with empty stomach.When I _at the cinema, the film _(be)on for 20 minutes.arrived had been arrivebe on ; After the film, I went to meet a friend whom I_ (not see) since we _. have not seen graduate not seegraduated; We

9、had coffee and talked happily.But when I was going to pay for it, I_(find)my wallet and cellphone _(steal).What an unlucky day ! had been stolenfoundPassive voice(被动语态被动语态):had(not)+been+donestealtalk;时间状语从句时间状语从句;when, while, as, before, after, until/till, since, ever since, whenever, as soon as, n

10、o sooner than, hardly / scarcely when 等1)常见的衔接时间状语从句的衔接词有:;When/While/As;when 意为意为这时这时(at this time)或或那时那时(at that time) 时，常用于以时，常用于以下句型：下句型：Somebody was doing something when某人正在做某人正在做 忽然忽然 Somebody was about to do something when.某人正要做某人正要做 忽然忽然 Somebody had just done something when某人刚刚干了某人刚刚干了这时这时W

11、hen;e.g. 1. I was reading English when my teacher came in.2. I was about to talk in the classroom when the teacher came in.3. I had just made the mistake when the teacher came in .;察看：察看：While they were doing homework, someone broke into the house.While he was still a teenager, he was a big star.Whi

12、le;分析：分析：while引导的从句表示引导的从句表示“在在过程中，强调某一段过程中，强调某一段时间内主句和从句的动作在同一时期发生。从句的动时间内主句和从句的动作在同一时期发生。从句的动作表示较长时间，因此常用延续性动词。作表示较长时间，因此常用延续性动词。;e.g. She is tall while I am short. while 表示剧烈的对比关系，可译成表示剧烈的对比关系，可译成“然而然而While I was studying English, he was playing football.;强调两个动作同时进展强调两个动作同时进展两种情况一同开展变化两种情况一同开展变化试

13、察看：试察看：1) As they were picking tea, the girls were singing happily.2) As he grew older, he found it difficult to compose good music.As;分析：分析：as引导的从句表示引导的从句表示“当当时；一边时；一边一一边边，主句和从句的动作同时发生，强调，主句和从句的动作同时发生，强调伴随。有时可译为伴随。有时可译为“随着。随着。;1. 他从学校回来时，他妈妈正在烧饭。他从学校回来时，他妈妈正在烧饭。2. 他在看书时，他的妻子不断在烧饭。他在看书时，他的妻子不断在烧饭。3.

14、 他一边烧饭一边唱歌。他一边烧饭一边唱歌。4. 我们正要动身，这时天忽然下雨了。我们正要动身，这时天忽然下雨了。5. 他喜欢踢足球而我喜欢弹钢琴。他喜欢踢足球而我喜欢弹钢琴。6. 随着时间的推移，我们都渐渐长大了。随着时间的推移，我们都渐渐长大了。Translate these sentences into English.;Possible answers:1. When he returned, his mother was cooking.2. While he was reading, his wife was cooking.3. As he cooked, he sang.4. W

15、e were about to start when it began to rain.5. you like playing football while I like playing the piano.6. As time went by, we all grew up. ;till / until;1.主句的谓语动词假设是延续性的应该用一定式，意主句的谓语动词假设是延续性的应该用一定式，意为为“不断到不断到2.主句的谓语动词假设是瞬间性的应该用否认式，意主句的谓语动词假设是瞬间性的应该用否认式，意为为“直到直到才才1.I waited till/until 9 o clock.2.Th

16、e little boy cried till/until his father appeared.3.I didnt go to bed till/until 9 o clock.4.Tom didnt finish his homework till/until 9 o clock.;当当not until放在句首时，主句要部分倒装。放在句首时，主句要部分倒装。Not until Mary had heard that sound did she really get frightened.在强调句中，强调在强调句中，强调until引导时间状语时，常把引导时间状语时，常把not提早，提早，

17、构成构成 it isnt/wasnt until thatIt wasnt until 11 o clock that he returned home.;before/since;当当before放于主句之后，有时候会意为放于主句之后，有时候会意为“就，才就，才The man almost knocked me down before he saw me.Before常用于这两个句型：常用于这两个句型：It was/wasnt+一段时间一段时间+before从句从句 过了多久过了多久/没过多久才没过多久才It will/wont be+一段时间一段时间+before从句从句 还得过多久还得过

18、多久/用不了多久就用不了多久就才才He rushed out of the room before I could say a word.就就;It was a long time before we met again.过了很久我们才再次见面过了很久我们才再次见面It will be three days before I come back.三天后我就回来了。三天后我就回来了。;Since引导的从句的谓语动词是瞬间动词时，那么从句表示引导的从句的谓语动词是瞬间动词时，那么从句表示的时间是的时间是“从动作开场的那一刻起从动作开场的那一刻起He has studies hard since h

19、e came to our school.自从他来到我们学校，他学习就非常努力。自从他来到我们学校，他学习就非常努力。Since引导的从句的谓语动词是延续性动词时或表示形状的引导的从句的谓语动词是延续性动词时或表示形状的动词，那么从句表示的时间是动词，那么从句表示的时间是“从动作从动作/形状终了的那一形状终了的那一刻起刻起I havent heard any noise since I slept。自从我醒来还没有听见任何声音自从我醒来还没有听见任何声音;1. I have not heard from him since I lived in Shanghai.2. It is half a month since he was a student.3. Its been quite a long time since I was in London.1. 自从我分开上海，就再也没有收到他的信。自从我分开上海，就再也没有收到他的信。2. 他曾经不是学生半个月了。他曾经不是学生半个月了。3. 我分开伦敦曾经很长时间了。我分开伦敦曾经很长时间