Unit 5What were you doing when the rainstorm came?人教版八年人教版八年级英英语下册下册SectionB1a-1dRevision:when vs.while 这两个词都有这两个词都有“当当的时候的时候”的意思。的意思。when既可指某一点时间，也可以指一段时间；既可指某一点时间，也可以指一段时间；while强调一段时间，所以从句的谓语动词常是延强调一段时间，所以从句的谓语动词常是延续性的。续性的。当当when表示表示“在某一段时间里在某一段时间里”的意思时的意思时,它可它可以代替以代替while,但但while不能代替不能代替when.e.g.WhenIcamehome,shewascookingdinner.当我到家时当我到家时,她正在做饭。她正在做饭。Whenyouhangwetclothesnearafire,youwillseesteamrisingfromthem.当你把湿衣服挂在火边时当你把湿衣服挂在火边时,你会看到水汽从衣你会看到水汽从衣上升起。上升起。Think of a time when you were late for or couldnt go to an event.What was the event?What was the reason why you were late or couldnt go?Tell your partner the story.1aListen and write short answers to the questions.1.Whateventhappenedattheschoolyesterday?_2.Whomissedtheevent?_3.Whichteamwonattheevent?_There was a basketball competition.Kate missed the event.Johns team won.1bListen again.Number the events 1-6 inthe order they happened._ Kate saw a dog by the side of the road._ Kate got to the bus stop._ Kate called the Animal Helpline._ Kate left the house._ Kate waited for someone to walk by._ Kate realized her bag was still at home.1234561cTalk about why Kate missed the school basketball competition.Student A begins a sentence with while or when.Student B completes the sentence.A:When the school basketball competition started.B:When the school basketball competition started,Kate was still making her way to school.1dA:Whentheschoolbasketballcompetitionstarted,whatwasKatedoingatthattime?B:Whentheschoolbasketballcompetitionstarted,Katewasstillmakingherwaytoschool.A:WhileKatewasrunningbackhome,whathappened?B:WhileKatewasrunningbackhome,Katesawadogbythesideoftheroad.I.I.单项选择。单项选择。B Exercises1.Imetafriendofmine_Iwaswalkinginthepark.A.beforeB.whenC.afterD.if2.Whenyouare_trouble,whynotphonethe_?A.at,policeB.in,policemanC.in,policeD.at,policemanC 3.MymotherwascookingwhileI_theradio.A.listenedtoB.havelistenedtoC.waslisteningtoD.islisteningto4._TVatthattime?A.DidyouwatchB.HaveyouwatchedC.WereyouwatchingD.AreyouwatchingC C 5.Theyarrived_Paris_awinterevening.A.at,inB.to,onC.in,onD.in,at6.Doyouknow_?A.whathehappenedB.whatthematteriswithhim.C.whathappenedtohimD.whatdidhehappenedC C 7.MypenislostandIcantfinditanywhere.Soyouwillhavetobuy_.A.itB.fewC.oneD.anyC Write a short passage to talk about the topic in 1a.Preview the next section.Homework