人教版英语八年级下册unit-5-sectiona-gf-4c-共32张课件.pptx-(课件无音视频)

1、1.能正确理解并使用过去进行时进行表达。能正确理解并使用过去进行时进行表达。2.能正确使用连词能正确使用连词when 和和while。What were you doing when I came in?I was when you came in.What was/were doing at.?Peterat 9:00 yesterday morningTed and Samat 2:00 yesterday afternoontalk on the phonesleep late the boys play basketballat 4:00 pm yesterdayat 11:00 la

2、st nightDavidswimRevision1.昨晚八点你正在做什么？昨晚八点你正在做什么？What _ you _ at eight last night?2.我正在洗澡。我正在洗澡。_ _ a shower.3.在下暴风雨的时候她正在做什么？在下暴风雨的时候她正在做什么？_ was she doing _ _ _ of the rainstorm?was takingwere doing根据课本内容，完成下列句子。根据课本内容，完成下列句子。What at the time4.她正在做家庭作业。她正在做家庭作业。She _ _ her _.5.在暴风雨来临的时候他正在做什么？在暴风雨

3、来临的时候他正在做什么？What _ he _ when the _ _?6.当暴风雨来临的时候她正在图书馆读书。当暴风雨来临的时候她正在图书馆读书。She _ _ in the library when the rainstorm _.was doing homeworkwas doing rainstormwas readingcamecame7.当开始下大暴风雨的时候当开始下大暴风雨的时候Ben正在做什么？正在做什么？What _ Ben _ _ it began to _ _?8.当开始下雨时，当开始下雨时，Ben正在帮他妈妈做晚饭。正在帮他妈妈做晚饭。When it began to

4、 rain,Ben _ _ his mom _ _.was doing when rain heavilywas helpingmake dinner9.当当Linda在睡觉的时候在睡觉的时候Jenny正在做什么？正在做什么？What _ Jenny _ _ Linda _ _?10.当当Linda在睡觉的时候在睡觉的时候Jenny正在帮助正在帮助Mary做家庭作业。做家庭作业。_ Linda was sleeping,Jenny _ _ Mary _ her _.was doing while was sleepingwaswith homeworkWhilehelping探索一：过去进行时

5、的结构探索一：过去进行时的结构(陈述句）陈述句）He was taking photos when the rainstorm came She was playing the pianoat the time of the rainstorm They were cleaning the roomat 10:00am last Sunday基本结构：基本结构：主语主语+was/were+v-ing+其它其它 StructureTheynotwereHewas taking photoswhen the rainstorm came 探索二：过去进行时的句型转换探索二：过去进行时的句型转换(否

6、定句）否定句）思考 否定句在否定句在_后面加后面加not。notcleaning the room at 10:00 last Sunday was或或were was not=wasnt were not=werent 探索三：过去进行时的句型转换探索三：过去进行时的句型转换(一般疑问句）一般疑问句）They werecleaning the roomat 10:00am last SundayHe was taking photoswhen the rainstorm came Were?they Was?he 思考 一般疑问句把一般疑问句把_调到主语前面调到主语前面,回答时，也要使用回答

7、时，也要使用_.was或或were was或或wereYes,they were./No,they werent.Yes,he was.No,he wasnt.1.take2.play3.clean4.shop5.sleep6.buy7.leave8.turn9.kid v.开玩笑开玩笑10.hittakingplayingcleaningshoppingsleepingbuyingleavingturningkiddinghittingtookplayedcleanedshoppedsleptboughtleftturnedkiddedhitLook at the table and wri

8、te sentences with both while and when.John Mary take photosbuy a drinkplay the pianoleave the houseclean his roomturn on the radioshoptake the car to the car wash延续性动词延续性动词非延续性动词非延续性动词1.While John was taking photos,Mary bought a drink.John was taking photos when Mary bought a drink.2._3._4._ when和和w

9、hile都可表示都可表示“当当的的时候时候”，引导时间状语从句。你知道两，引导时间状语从句。你知道两者在过去进行时中的用法有什么不同吗？者在过去进行时中的用法有什么不同吗？请仔细观察下面的例句，然后补全请仔细观察下面的例句，然后补全空格中的内容。空格中的内容。I was walking to school when I saw a cat in a tree.When Sally arrived home,her mother was cleaning the house.主句的动作是持续性的，而从句动作是主句的动作是持续性的，而从句动作是短暂性的，此时用短暂性的，此时用 _ 引导时间状语从引

10、导时间状语从句，主句用句，主句用 _ 时态，从句用一般时态，从句用一般过去时态。过去时态。过去进行过去进行when While I was sleeping in the bedroom,someone knocked at the door.David fell while he was riding his bike.主句的动作是短暂性的，从句的动作主句的动作是短暂性的，从句的动作是持续性的，此时用是持续性的，此时用 _ 引导从引导从句，主句用句，主句用 _ 时态，从句时态，从句用过去进行时态。用过去进行时态。一般过去一般过去while 1)when可指时间点可指时间点,又可指时间段又可指

11、时间段,从句中从句中 可用可用延续性动词延续性动词,也可用也可用非延续性动词。非延续性动词。2)while总是指一个时间段总是指一个时间段,从句中从句中必须用延必须用延 续性动词续性动词。1.Tom was eating supper,it began to rain outside.2.What were you doing,Mr.Zhou came in?3.Peter was sleeping,a thief broke into his house.4.She left her hometown she was five.有时候when 和while 可以进行转换eg:While Jo

12、hn was taking photos,Mary bought a drink=John was taking photos when Mary bought a drink.While the boy was singing in the classroom,the teacher came in.=The boy was singing in the classroom when the teacher came in（用when 来进行转换）1.While John was taking photos,Mary bought a drink.John was taking photos

13、 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.=2.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 ca

14、r wash.John was shopping when Mary took the car to the car wash.3.4.=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

15、 away to have alook._we got to the place of the accident,the car _ in bad shape from hitting a tree.But luckily,the driver _fine.The roads_ icy because of the heavy snow from the night before.短文填空短文填空根据题后要求完成下列句子，每空一词。根据题后要求完成下列句子，每空一词。1.My mother washed clothes yesterday afternoon.(用用at five yester

16、day afternoon改为过去进行时改为过去进行时)My mother _ _ clothes at five yesterday afternoon.was washing2.We were speaking English at that time.(改为否定句改为否定句)We _ _ _English at that time.3.Mr Smith was mending his bike when they rang him up.(改为一般疑问句改为一般疑问句)_ Mr Smith _ his bike when they rang him up?were not speakin

17、gWas mending4.She was doing her homework at three yesterday afternoon.(对划线部分提问对划线部分提问)_ _ she _ at three yesterday afternoon?5.I was playing computer games when my mother came into my room.(同义句转换同义句转换)_ I was playing computer games,my mother came into my room.What was doingWhile I.根据汉语意思完成下列英语句子，每空根

18、据汉语意思完成下列英语句子，每空一词。一词。1.昨天下午五点钟你哥哥在做什么？昨天下午五点钟你哥哥在做什么？What _ your brother _ at five yesterday afternoon?2.昨天我回到家时，我妈妈在洗衣服。昨天我回到家时，我妈妈在洗衣服。My mother _ _ clothes _ I _ home yesterday.was washingwas doing when got 3.你做作业时，你妹妹在干什么？你做作业时，你妹妹在干什么？What _ your sister _ _ you _ _ your homework?while were doi

19、ngwas doing1._ Jennifer was reading a magazine,her sister was listening to the pop music.A.WhileB.When C.What time2.I was trying to draw a cat on the board _ the teacher came in.A.whileB.when C.what time3.My best friend visited my house while I _ dinner in the kitchen.A.cooked B.cooking C.was cookingA B C 4.Dick gave me a note while I _ in the library.I guess he made it to say“sorry”to you.A.am reading B.was reading C.reads D.will read B After class,please make some dialogues with the phrases and sentences in 4c.