八年級英語下冊Unit5GrammarFocus教學ppt課件人教版

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Unit 5What were you doing when the rainstorm came?,Grammar Focus-3c,Unit 5Grammar Focus-3c,What were they doing,when it began to rain?,They,were playing,computer games when it began to rain.,They,were playing,chess when it began to rain.,They,were playing,football when it began to rain.,What were they doing when it b,While,Jake was sleeping,what did,his brother,do?,He played basketball.,When,Jake was sleeping,his brother played basketball.,While Jake was sleeping,what,While,they were dancing,the telephone rang.,When,the telephone rang,they were dancing.,While,they were dancing,what happened?,While they were dancing,the t,He was singing,when,the baby started to cry.,While,he was singing,the baby started to cry.,He was singing when the baby s,While,he was walking,a taxi came.,He was walking,when,a taxi came.,While he was walking,a taxi c,Both of them mean,Are they the same?,No,！,Both of them meanAre they the,when,when,引導的時間狀語從句可以表示一個時間點,也可以表示一個時間段。

從句中可以用短暫性動詞，也可以用延續(xù)性動詞It was snowing when we got to the airport.,我們到達機場時，,天正下著雪My key dropped on the ground when I was walking in the park.,我在公園散步時，,鑰匙掉在了地上when,and,while,“,當,的時候,”,whenwhen引導的時間狀語從句可以表示一個時間點,也可,while,引導的時間狀語從句常指一個時間段，從句中的動詞常為,延續(xù)性,的while,有時還可表示主句的動作與從句的動作同時發(fā)生While he was reading,the phone rang.,他正在看書時，電話鈴響了Some students were reading while others were writing.,一些學生在讀書，另一些學生在寫字while,while引導的時間狀語從句常指一個時間段，從句中的動詞常為,1),若從句是一個,短暫性動作,，主句是一個,持續(xù)性動作,，可用,when,但不用,while,：,It was raining hard when we arrived.,我們到達時正下著大雨。

2),表示主、從句正在進行的動作或狀態(tài)的對比時多用,while,：,While she was making a phone call,I was writing a letter.,when,和,while,的區(qū)別,3)when,可用作并列連詞，表示“這時,(,突然,),”，但,while,不可以；,while,可以用作并列連詞，表示“而、卻”,(,表示對比,),，但,when,沒有這種用法We were about to start,when,it began to rain.,He likes coffee,while,she likes tea.,1)若從句是一個短暫性動作，主句是一個持續(xù)性動作，可用 w,Practice,1.I _(watch)TV when she _(call).,2.When the phone _(ring),she _,(write)a letter.,3.While we _(have)a picnic,it _,(start)to rain.,4.While John _(sleep)last night,someone,_(steal)his car.,was watching,called,rang,was writing,were having,started,was sleeping,stole,Practice1.I _(w,5.While we _(wait)for the bus,a girl,_(run)up to us.,6.I _(telephone)a friend when Bob _,(come)in.,7.While mother _(make)the bed,the door bell,_(ring).,8.We _(test)the new machine when the,electricity _(go)off.,were waiting,was running,was phoning,came,were testing,went,was making,rang,5.While we _(wait,Translation,1.,當開始下雨的時候，我正和朋友們在操場上打籃球。

I,was playing,basketball with my friends in the playground when it,started,to rain.,2.,我當時甚至不知道我正在做什么I did not even know what I,was doing,at that time.,Translation1.當開始下雨的時候，我正和朋友們在,3.,當我媽媽在做晚飯的時候，我在臥室做作業(yè)I,was doing,my homework in the bedroom while my mother,was cooking,supper.,4.,當我今天早上看到她時，她正急匆匆地趕去上班When I,saw,her this morning,she was in a great hurry to go to work.,3.當我媽媽在做晚飯的時候，我在臥室做作業(yè)I was d,4a,Look at the table and write sentences with both,while,and,when,.,While,John was taking photos,Mary bought a drink.,John was taking photos,when,Mary bought a drink.,While,John was playing the piano,Mary left the house.,John was playing the piano,when,Mary left the house.,4aLook at the table and write,While,John was cleaning his room,Mary turned,on the radio.,John was cleaning his room,when,Mary turned on,the radio.,While,John was shopping,Mary took the car to the,car wash.,John was shopping,when,Mary took the car to the,car wash.,While John was cleaning h,4b,Fill in the blanks with,was,were,when,or,while,.,At 7:00 a.m.,I woke up._ I _ making my breakfast,my brother _ listening to the radio._ I was eating,the radio news talked about a car accident near our home.My brother and I went out right away to have a look._ we got to the place of the accident,the car _,in bad shape from hitting a tree.,while,was,was,While,When,was,But luckily,the driver _ fine.The roads _ icy because of the heavy snow from the night before.,was,were,4bFill in the blanks with was,What were you doing at 9 oclock last night?,I,was doing,some housework,.,I,was,having,dinner.,What were you doing at 9 oclo,What were you doing between 7oclock and 9 oclock yesterday?,I,was,doing,my homework.,I,was,watching,TV.,What were you doing between 7o,What was Tom doing at that time last Sunday?,Tom,was,playing,the piano.,Bob,was,riding,a bike.,How about David?,What was Tom doing at that tim,What were they doing at that time last week?,They,were,shopping,.,How about them?,They,were,having,a picnic.,What were they doing at that t,(,過去進行時,),過去進行時表示過去某一時刻或某段時間正在進行的動作。

過去進行時由“,was/were+,動詞,-ing,形式”構成Past Progressive Tense,(過去進行時)過去進行時表示過去某一時刻或某段時間正,1.,過去進行時的各種句式,:,肯定句,:,主語,+was/were+,動詞,-ing,形式,否定句,:,主語,+was/were+not+,動詞,-ing,形式,I was reading at this time yesterday.,昨天這個時候我正在看書I wasnt reading at this time yesterday.,昨天這個時候我沒在看書1.過去進行時的各種句式:肯定句:主語+was/w,疑問句,:,(1),一般疑問句,:was/were+,主語,+,動詞,-ing,形式肯定回答,:Yes,主語,+was/were.,否定回答,:No,主語,+wasnt/werent.,如：,Were you reading at this time yesterday?,昨天這個時候你在看書嗎？,Yes,I was./No,I wasnt.,是的，我在看/,不，我沒在看疑問句:(1)一般疑。

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