英语人教版八年级下册Unit 5 Section B (1a--2d).ppt

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1、What were you doing when the rainstorm came?Language Goals:Talk about past events and tell a storyLanguage structures:conjunctions When,While and AsStrategy:Repeating and practicinghaving a partydancingRevision:boating on the seaWhat is he doing?He is.What are they doing?They are.playing tennisplayi

2、ng soccerdoing some readingWhat are we doing now?What were you doing at this time yesterday?We are having a class.We were having a class at this time yesterday.1、构成：、构成：was/were+V-ing2、用法：、用法：1）表示在过去某一时刻或某一段时间正在进）表示在过去某一时刻或某一段时间正在进行的动作，通常与以下时间状语连用：行的动作，通常与以下时间状语连用：then,at that time,this time yesterd

3、ay,at 5 oclock last night,from 7:00 to 9:00 yesterday.2）过去进行时与一般过去时的用法区别。）过去进行时与一般过去时的用法区别。过去进行时表示一个过去正在进行而且尚未完成的过去进行时表示一个过去正在进行而且尚未完成的动作动作。I was reading a book last night.(书不一定看完)一般过去时表示一个过去已经完成的动作。一般过去时表示一个过去已经完成的动作。I read a book last night.(书已经看完)。I was studying in the library.Yesterday,there was

4、 a rainstorm.What were they doing when the rainstorm came?Here are some reports.What were you doingwhen the rainstorm came?I was on the street.Where were you when the rainstorm came?I was waiting for the bus at the bus stop.What were you doingwhen the rainstorm came?1a Where were the people at the t

5、ime of the rainstorm?Match the statements with the people in the picture.I was in the library.I was on the street.I was in my house.I was at the bus stop.2a-2b1 1、go offgo off（闹钟）闹响（闹钟）闹响The alarm clock went off at six and woke Father.The alarm clock went off at six and woke Father.走开、离开走开、离开 The gi

6、rl went off alone.The girl went off alone.食品等“变质”“病毒、电流等”“消失”（电、自来水、煤气等）切断、电灯熄灭Milk goes off guickly in hot weathen.Milk goes off guickly in hot weathen.While we were there,the electricity went off.While we were there,the electricity went off.2d Role play the conversation.Linda:Oh,I was in the kitch

7、en helping my mom.Mary:What were you doing last night,Linda?I called at seven and you didnt pick up.Mary:I see.I called again at eight and you didnt answer then either.Linda:What was I doing at eight?Oh,I know.When you called,I was taking a shower.Linda:Yeah,I was tired.Why did you call so many time

8、s?Mary:I needed help with my homework.So while you were sleeping,I called Jenny and she helped me.Mary:So early?Thats strange.Mary:But then I called again at nine.Linda:Oh,I was sleeping at that time.2d1.pick up=pick up the phone=answer the phone接电话The phone is ringing.Could you please pick it up fo

9、r me?捡起、捡起某物。He picked up his hat and went away.开车去接某人I will go to the airport and pick up my uncle.接收信号。My radio can pick up VOA.学会、得到He picked up French while he was staying in Paris.adj.陌生的，不熟悉的The place is strange to me.我对这个地方很陌生。2.strange adj.奇特的，奇怪的 I had a strange experience.stranger 陌生人Dont

10、talk with strangers.They may be bad men.小结小结when/while and aswhen/while and as的辨析的辨析若主句表示的是一个短暂性动作，从句表示是一个持续性动作若主句表示的是一个短暂性动作，从句表示是一个持续性动作,三者都三者都可用。可用。He fell asleep when/while/as he was reading.若从句是一个短暂性动作，主句是一个持续性动作，可用若从句是一个短暂性动作，主句是一个持续性动作，可用as/when,不不用用while.It was raining hard when/as we arrive

11、d.若主从句表示的是两个同时（或几乎同时）发生的短暂性动作，用若主从句表示的是两个同时（或几乎同时）发生的短暂性动作，用as/when.I thought of it just when/as you opened your mouth.当主从句动作同时进行，从句动作的时间概念淡化，而要表示主句动当主从句动作同时进行，从句动作的时间概念淡化，而要表示主句动作发生的背景或条件时只能用作发生的背景或条件时只能用as，随着，随着，一边，一边，一边，一边。As the time went on,the weather got worse.表示表示“每当每当的时候的时候”（暗示一种规律性）一般要用（暗示

12、一种规律性）一般要用when。Its cold when it snows.若主从句所表示的动作不是同时发生，而是有先后顺序性，一般要用when.Ill go home when he comes back.when 可做并列连词，这时（突然），while并列连词，当而、却。a)we were about to start when it began to rain.我们正要出发，这时天要开始下雨。b）He likes coffee while she likes tea.a)若主从句表示两个同时进行的持续性动作，且强调主句表示的动作，延续到从句所指的时间，用while.Can you loo

13、k after my dog while I am away?Dont talk while youre eating?b)如主从句动作同时进行，主从句可同时用进行时。Some students were reading while others were writing.as和when均可直接跟一个名词构成省略句，而while一般不这样用。As/When a boy,he lived in Japan.when和while后接现在分词、介词、形容词等构成省略句，但as一般不这样用。When/While reading,he fell asleep.When/While in trouble,

14、ask her for help.单项选择。单项选择。()1、I was staying at home and watching TV _the time of the rainstorm.A.for B.by C.at D.in()2、There is a ruler on the ground.Please _.A.pick up it B.pick it upC.pick up them D.pick them up()3、My alarm didnt_，so I woke up late.A.put off B.go off C.take off D.get off()4.Where

15、 were you when I called?I _on the bed.A.lied B.was lying C.lay D.was lieing.CBBB()5.It rained_and lasted for a long time.Thats terrible.Even some streets were full of water.A.hardly B.strongly C.heavily D.lightly()6.Tin look called his mother every week even while he _around the the world.A.was trav

16、eling B.is traveling C.traveled D.travels()7.Someone knocked at the door _ I was doing my homework in my bedroom.A.while B.if C.although D.because()8.She_a newspaper while her father was watching TV.A.was reading B.read C.reads D.is readingCAAA一、所给词的适当形式填空1.When my mother came home,I (take)a shower.2.We (wait)for the bus at 5:00p.m yesterday afternoon.3.Mike was doing his homework while kate_(cook)dinner.4.Kate (play)the piano when I visited her.was takingwere waitingwas cookingwas playingMake a survey about what your family were doing when you arrived home last Friday?Homework: