2022八年级英语上册 Unit 8 Natural disasters（Grammar）课件 （新版）牛津版.ppt

1、Unit 8 Natural disastersGrammarLead-in123I was sleeping when the earthquake started.People were running in all directions while pieces of glass and bricks were falling down.As I was trying to find my way out,I suddenly heard some noise above me.Lead-inWhat were people doing when the earthquake happe

2、ned?Lead-in过去进行时Lead-inThe past continuous tenseDiscoveringLook at the sentences.He was watching TV at nine yesterday.We were sleeping when you came.She was cooking dinner at that time.They were playing football that afternoon.You were reading when the telephone rang.I was washing my car at this tim

3、e yesterday.Whats the rule?DiscoveringCircle the right verb.At this time yesterday,she is reading/was reading in the study.What were you doing/did you do at nine oclock last night?I am chatting/was chatting online with my friends when he came.It was raining/were raining yesterday.They were doing/did

4、 homework from 4:00 to 5:00 that afternoon.Use the rule!DiscoveringWork out the rule!Essential Structurewas/wasnt were/werent+doingsb+DiscoveringWork out the rule!We use“was+doing”with the pronoun _,_,_ and _.We use“were+doing”with the pronoun _,_ and _.he she it Iyou they weExplainingUsageTo talk a

5、bout things that were happening at a particular time in the past.e.g.I was reading a book at 5 p.m.yesterday.She wasnt chatting online just now.Were your parents watching TV at 9 last night?What were they discussing all day last Sunday?Communication show123at this time yesterdaythe whole night yeste

6、rdayat 4 p.m.yesterdayMake sentencesCommunication showMake sentences1.The boys were playing football at 4 p.m.yesterday.2.The woman was shopping at this time yesterday.3.The girl was reading the whole night yesterday.Complete a conversationCommunication showComplete Part A on Page 97PracticeEntrance

7、 examination link1.Was Kate at the party last night?Yes,she _ a really nice dress.（2013盐城市）A.is wearingB.was wearing C.would wearD.has worn2.Millie _ a picture when Mr Green came in.（2013徐州市）A.drawB.will draw C.drewD.was drawingPracticeEntrance examination link3.Sally took a photo of her friends whi

8、le they _ computer games.（2013杭州市）A.playB.are playing C.have playedD.were playing4.Has David finished his project yet?I guess not.He _ on it at lunchtime.Do you want to confirm it?（2014无锡市）A.is workingB.was working C.has workedD.had workedPracticeEntrance examination link5.Susan and Lily _ tomatoes

9、and other vegetables on the farm this time yesterday.（2014上海市）A.pickB.are picking C.will pickD.were picking6.Alan!Why are you so late?Sorry!When I _ home,I met one of my friends.（2014威海市）A.wentB.am walking C.has goneD.was walkingComparisonSummaryPast continuous tense:sb+was/were+doingPresent continu

10、ous tense:sb+am/is/are+doingSimple past tense:sb+was/were/didExplainingDifficulty:when,while,asThey all mean“during the time that”and can be used to introduce a long action that started before a short action.e.g.When/While/As Millie was watching TV,Andy came into the sitting-room._ long action_ shor

11、t actionTip We use past We use past continuous tensecontinuous tense for for long actionslong actionsand and past tensepast tense for for short actionsshort actions.ExplainingAttention1.If the longer action is in the main clause,we often use“when”to join them.e.g.Millie was watching TV whenAndy came

12、 into the sitting-room._ longer actionExplainingAttention2.When there are two long actions,we often use“while”.e.g.While Millie was watching TV,Eddie was sleeping._ long action_ long actionExplainingAttention3.“As”can also be used to join two short actions that happen at the same time.e.g.As Millie

13、sat down on the sofa,Andy came into the sitting-room._ short action_ short actionFill in the blanksCommunication show1.It began to rain _ Linda was having supper.2.What were you doing _ Mr Jackson came into the classroom?3._ you are driving,dont use your mobile phone.4._ years go by,China is getting

14、 richer and stronger.when/while/aswhenWhen/While/AsAswhen,while,asFill in the blanksCommunication showwhen,while,as5.We were having a meeting _ the light went off.6.I was looking after the child _ Jenny was cooking lunch.7.The little girls sang _ they played.8._ I arrived at his office,he was chatti

15、ng on the phone.whenwhileasWhen/AsComplete sentencesCommunication showComplete Part B on Page 98PracticeComplete the survey with your own information.What were you doing in the _ class this morning?Chinese _ _ English _ _ Music _ _ Maths _ _Pair work:Ask a partner and write his/her answers.YouYour p

16、artnerWhat was/were doing when the doorbell rang?SandySammyfathermothertwin brothersdogPracticeA:What was the boy doing at the table at 5 p.m.yesterday?B:He was talking with a girl.A:Was the girl writing?B:No,she wasnt.Practice1.Review grammatical rules learned in this class.2.Preview Integrated skills.