Unit 8 Life in the future(grammar2)课件(牛津深圳版八年级下册).ppt(课件中不含音视频素材)

1、The past continuous tenseTo know the usage of the past continuous tenseTo learn to use the past continuous tense1.We were watching TV from seven to nine last night.2.What was he doing all day last Sunday?3.My brother fell while he was riding his bicycle and hurt himself.4.It was raining when they le

2、ft the station.5.When I got to the top of the mountain,the sun was shining.6.She asked him whether he was coming back for supper.7.He was cleaning his car while I was cooking.8.His mother was always working like that.9.He was always changing his mind.10.I saw him while I was walking to the station.过

3、去进过去进行时行时定义定义句式句式when/while/as1.在在过去某一时刻过去某一时刻正在正在进行进行的动作的动作(a)They were eating breakfast at 7:00 am yesterday.(b)I was writing a letter at this time yesterday.(c)Five minutes ago,Danny was looking out of the window and Suzy was reading a book.一、定义一、定义：过去进行时表示过去某时正：过去进行时表示过去某时正在进行的动作或存在的状态。在进行的动作或存在

4、的状态。过去进行时过去进行时2.在在过去某段时间过去某段时间一直在一直在进行进行的动作的动作(a)From 1983 to 1998,he was teaching at Yale.(b)They were building a dam last winter.Z,x,x,k二、句二、句 式式 (1)基本结构：肯定式基本结构：肯定式was/were+verb-ing (2)否定式：否定式：was/were not+verb-ing was not=wasnt were not=werentI was doing some shopping.People were running wildly.

5、I was not reading.People were not running wildly.(3)疑问句：将疑问句：将 was/were调到主语前调到主语前 结构为：结构为：Was/Were+主语主语+verb-ing?回答回答：Yes,主语主语+was/were.No,主语主语+was not/wasnt.were not/werent.Was he running?Yes,he was./No,he wasnt.Were they running?Yes,they were./No,they werent.While Mille was watching TV,her mum was

6、 sleeping.米莉在看电视时，妈妈在睡觉。米莉在看电视时，妈妈在睡觉。I saw a traffic accident as I was riding to school this morning.今天早晨我骑车去学校时看到一起交通今天早晨我骑车去学校时看到一起交通事故。事故。Was he doing his homework when the teacher came in?当老师进来时，他正在做作业吗？当老师进来时，他正在做作业吗？三、三、when,while和和as这三个词都有这三个词都有“当当时候时候”的意思。的意思。用法用法(1)若主句表示的是一个短暂性动作，从若主句表示的是一

7、个短暂性动作，从句表示的是一个句表示的是一个持续性动作持续性动作，三者都可用：，三者都可用：He fell asleep when while,as he was reading.他看书时睡着了。他看书时睡着了。用法用法(2)若主、从句表示两个若主、从句表示两个同时进行的同时进行的持续性持续性动作，且强调主句表示的动作动作，且强调主句表示的动作延续到从句所指的整个时间，通常要延续到从句所指的整个时间，通常要用用 while：Dont talk while youre eating.吃饭时不要说话。吃饭时不要说话。用法用法(3)若从句是一个若从句是一个短暂性短暂性动作，主句动作，主句是一个是一个

8、持续性持续性动作，可用动作，可用 as/when 但不用但不用 while：It was raining hard when as we arrived.arrive 是短暂动词是短暂动词我们到达时正下着大雨。我们到达时正下着大雨。用法用法(4)若要表示两个正在发展变化的情况，若要表示两个正在发展变化的情况，相当于汉语的相当于汉语的“随着随着”，一般用，一般用 as：Things are getting better and better as time goes on.随着时间的推移，情况越来越好随着时间的推移，情况越来越好用法用法(5)表示表示“每当每当的时候的时候”(暗示一种暗示一种规律

9、性规律性)，一般要用，一般要用 when：Its cold when it snows.下雪时天冷。下雪时天冷。He smiles when you praise him.你夸奖他时他总是笑笑。你夸奖他时他总是笑笑。用法用法(6)若主从句所表示的动作不是同时发生，若主从句所表示的动作不是同时发生，而是有而是有先后顺序先后顺序时，一般要用时，一般要用 when：I will go home when he comes back.他回来时，我就回家去。他回来时，我就回家去。特殊用法特殊用法(1)when 表示表示“这时这时(突然突然)”；(2)while 可以表示可以表示“而而”、“却却”(表示表

10、示对比对比)；但；但 as 则没有类似用法：则没有类似用法：We were about to start when it began to rain.我们正要出发，这时天开始下雨了。我们正要出发，这时天开始下雨了。He likes coffee,while she likes tea.他喜欢咖啡，而她却喜欢茶。他喜欢咖啡，而她却喜欢茶。特殊用法特殊用法（3）as 和和 when 后均可后均可直接跟一个名直接跟一个名词，词，构成省略句，但构成省略句，但 while 一般不这样一般不这样用：用：As When a boy,he lived in Japan.他小时候在日本。他小时候在日本。特殊用法

11、特殊用法（4）when 和和 while 后可接后可接现在分词、现在分词、介词短语介词短语、形容词、形容词等构成等构成省略句省略句，但，但 as 一般不这样用：一般不这样用：When While reading,he fell asleep.他看书时睡着了。他看书时睡着了。When While in trouble,ask her for help.遇到麻烦的时候你就去找她帮忙。遇到麻烦的时候你就去找她帮忙。【拓展拓展】现在进行时可以表示将来的动作，同样，现在进行时可以表示将来的动作，同样，过去进行时也可以表示从过去某时看来将过去进行时也可以表示从过去某时看来将要发生的动作。要发生的动作。Lu

12、cy arrived in Beijing last Friday,but she was leaving for Hong Kong the next morning.上周五露西到达北京，但第二天早晨就要上周五露西到达北京，但第二天早晨就要动身去香港了。动身去香港了。注注:另附另附 word word 文档。文档。点击此处链接点击此处链接.单项选择。单项选择。1.When I came back yesterday evening,my brother _ his homework.(2011长沙长沙)A.is doing B.has done C.was doing 2.-What wer

13、e you doing this time yesterday?-I _ on the grass and drawing a picture.(2011北京北京)A.sit B.sat C.am sittingD.was sitting3.-Amy,I called you yesterday evening,but nobody answered the phone.-Oh,I _ a walk with my mother at that time.(2011宁波宁波)A.take B.took C.am taking D.was taking4.He _ when the UFO ar

14、rived.He didnt wake until the UFO disappeared.(2011枣庄枣庄)A.slept B.was sleeping C.was doing homework D.was singing5.Where were you this morning?I _ in the supermarket.(2012河北河北)A.will shop B.am shopping C.was shopping D.have shopped 6.Sam,come downstairs,please.I need your help.Sorry,Mum.I _ on the p

15、hone.(2012陕西陕西)A.am talking B.talked C.was talking D.have talked 7.I phoned you at 7.00 this morning.But there was no answer.Well,maybe I _ morning exercises at that time.(2012山东烟台山东烟台)A.was doing B.did C.is doing D.would do8.Sally took a photo of her friends while they _ computer games.(2013浙江杭州浙江杭

16、州)A.play B.are playing C.have played D.were playing9.What _ you _ when the captain came in?(2013黑龙江齐齐哈尔黑龙江齐齐哈尔)A.are;doing B.did;do C.were;doing 10.I saw him in the library yesterday.He _ a book at the moment.(2013 天津，天津，31)A.reads B.is reading C.was reading D.will read1.当地震发生的时候，我正在买东西。当地震发生的时候，我正在

17、买东西。I _ _ some shopping when the earthquake _.2.当格林夫人写信的时候，她的孩子们在当格林夫人写信的时候，她的孩子们在 看电视。看电视。While Mrs Green _ _ a letter,her children _ _ TV.3.当我离开电影院的时候，雨下得很大。当我离开电影院的时候，雨下得很大。It _ _ heavily when I _ the cinema.was doing.根据中文提示完成下列句子，每空一词。根据中文提示完成下列句子，每空一词。happened was writingwas raining leftwere wa

18、tching4.我们等车的时候，一个女孩跑过来了。我们等车的时候，一个女孩跑过来了。While we _(wait)for the bus,a girl _(run)up to us.5.鲍勃进来时，我正给朋友打电话。鲍勃进来时，我正给朋友打电话。I _(telephone)a friend when Bob came in.6.就在公车移动时，吉姆跳上了车。就在公车移动时，吉姆跳上了车。Jim _(jump)on the bus as it _(move)away.were waitingranwas telephoning jumped was moving7.停电的时候我们正在测试新机器

19、。停电的时候我们正在测试新机器。We _(test)the new machine when the electricity went off.8.当其他人都在地里干活时，她不想躺在当其他人都在地里干活时，她不想躺在床上。床上。She _(not want)to stay in bed while the others _(all,work)in the fields.was testingwere all workingdidnt want9.-你们那会在干吗？你们那会在干吗？-我们正在看电视。我们正在看电视。-What _ you_(do)at that time?-We _(watch)

20、TV.10.我看见他的时候，他们正做船的我看见他的时候，他们正做船的模型。模型。They _(not make)a model ship when I saw him.were doingwere watchingwere making.翻译。翻译。1.1.昨天这个时候你们英语老师在做什么？昨天这个时候你们英语老师在做什么？她在和一些家长谈话吗？她在和一些家长谈话吗？What was you English teacher doing this time yesterday?Was she talking with some parents?.2.当我离开的时候他正在画一幅世界地当我离开的时候

21、他正在画一幅世界地图。图。When I left,he was drawing a map of the world.3.当你看见他们的时候他们在干什么？当你看见他们的时候他们在干什么？他们在打扫教室。他们在打扫教室。What were they doing when you saw them?They were cleaning the classroom.4.4.那时二班的学生没在操场上踢足球，那时二班的学生没在操场上踢足球，他他们在打篮球。们在打篮球。At that time the Class Two students were not playing football in the

22、playground.They were playing basketball.5.5.一天，母亲下班回家的时候，约翰在一天，母亲下班回家的时候，约翰在写给一个朋友写信。写给一个朋友写信。One day John was writing to one of his friends when his mothers came back from work.6.上周五一下午，学生们在干什么？他们上周五一下午，学生们在干什么？他们一直在往墙上贴海报。一直在往墙上贴海报。What were the students doing the whole afternoon last Friday?They were putting up the posters on the wall.