人教版英语八年级下册unit-5-sectiona-gf-4c-共32张课件

1、Section A GF-4cUnit 5 What were you doing when the rainstorm cameSection A Unit 5 教学目标1.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when 和while。教学目标1.能正确理解并使用过去进行时进行表达。What were you doing when I came in?I was when you came in.What were you doing when I camWhat was/were doing at.?Peterat 9:00 yesterday morningTed and

2、 Samat 2:00 yesterday afternoontalk on the phonesleep late the boys play basketballat 4:00 pm yesterdayat 11:00 last nightDavidswimRevisionWhat was/were doing at.?P1. 昨晚八点你正在做什么？ What _ you _ at eight last night?2. 我正在洗澡。 _ _ a shower.3. 在下暴风雨的时候她正在做什么？ _ was she doing _ _ _ of the rainstorm?Grammar

3、 Focuswas takingwere doing根据课本内容，完成下列句子。 What at the time1. 昨晚八点你正在做什么？Grammar Focuswas4. 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？ What _ he _ when the _ _?6. 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 readingcamecame4. 她正在做家庭作业。was do

4、ing 7. 当开始下大暴风雨的时候Ben正在做什么？ What _ Ben _ _ it began to _ _?8. 当开始下雨时，Ben正在帮他妈妈做晚饭。 When it began to rain, Ben _ _ his mom _ _. was doing when rain heavilywas helpingmake dinner7. 当开始下大暴风雨的时候Ben正在做什么？was 9. 当Linda在睡觉的时候Jenny正在做什么？ What _ Jenny _ _ Linda _ _?10.当Linda在睡觉的时候Jenny正在帮助Mary做家庭作业。 _ Linda

5、was sleeping, Jenny _ _ Mary _ her _. was doing while was sleepingwaswith homeworkWhilehelping9. 当Linda在睡觉的时候Jenny正在做什么？was 探索一：过去进行时的结构 (陈述句）He was taking photoswhen 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：主语+ wa

6、s/were + v-ing +其它 Structure探索一：过去进行时的结构 (陈述句）He was takinTheynotwereHewastaking photoswhen the rainstorm came 探索二：过去进行时的句型转换(否定句）思考 否定句在_后面加not。 notcleaning the roomat 10:00 last Sunday was或were was not = wasnt were not = werent TheynotwereHewastaking photosw探索三：过去进行时的句型转换(一般疑问句） They werecleaning

7、the roomat 10:00am last SundayHe was taking photoswhen the rainstorm came Were ? they Was ? he 思考 一般疑问句把_调到主语前面,回答时，也要使用_. was或were was或wereYes, they were. / No, they werent. Yes, he was. No, he wasnt. 探索三：过去进行时的句型转换(一般疑问句） They w1. take2. play3. clean4. shop5. sleep6. buy7. leave8. turn9. kid v.开玩笑

8、10. hittakingplayingcleaningshoppingsleepingbuyingleavingturningkiddinghittingtookplayedcleanedshoppedsleptboughtleftturnedkiddedhit预习热身写出现在分词形式写出过去分词形式1. taketakingplayingcleaningshLook at the table and write sentences with both while and when.John Mary take photosbuy a drinkplay the pianoleave the

9、 houseclean his roomturn on the radioshoptake the car to the car wash延续性动词非延续性动词Look at the table and write se1. While John was taking photos, Mary bought a drink. John was taking photos when Mary bought a drink.2._3._4._1. While John was taking photo when和while都可表示“当的时候”，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

10、不同吗？ 请仔细观察下面的例句，然后补全空格中的内容。过去进行时中的 when 和 while when和while都可表示“当的时候” 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，而从句动作是短暂性的，此时用 _ 引导时间状语从句，主句用 _ 时态，从句用一般过去时态。过去进行when I was walking to school when While I was sleeping in th

11、e bedroom, someone knocked at the door. David fell while he was riding his bike. 主句的动作是短暂性的，从句的动作是持续性的，此时用 _ 引导从句，主句用 _ 时态，从句用过去进行时态。一般过去while While I was sleeping in the 1) when可指时间点, 又可指时间段, 从句中 可用延续性动词, 也可用非延续性动词。2) while总是指一个时间段, 从句中必须用延 续性动词。Summary:1) when可指时间点, 又可指时间段, 从句中Summ1. Tom was eatin

12、g 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.Fill in the blanks with “while” and “when”.WhilewhenWhilewhen注意：当when 和while 引导的时间状语 从句放在句首，要用逗号隔开。1. Tom was eating 有时候when 和while 可以

13、进行转换eg:While John 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）有时候when 和while 可以进行转换eg:While 1. While John was tak

14、ing 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.=2.1. While John was taking photoWhile John was cleaning his room, Mary turned on the radio. John was cleaning

15、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.3.4.=While John was cleaning his roFill in the blanks with was, were, when or while.At 7:00 a.m., I woke up. _I _making my breakfast, my brother

16、_ 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 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 s

17、now from the night before.短文填空Fill in the blanks with At 7:0根据题后要求完成下列句子，每空一词。My mother washed clothes yesterday afternoon. (用at five yesterday afternoon改为过去进行时) My mother _ _ clothes at five yesterday afternoon. was washingwas washing2. We were speaking English at that time. (改为否定句) We _ _ _English

18、 at that time. 3. Mr Smith was mending his bike when they rang him up. (改为一般疑问句) _ Mr Smith _ his bike when they rang him up?were not speakingWas mending2. We were speaking English at4. She was doing her homework at three yesterday afternoon. (对划线部分提问) _ _ she _ at three yesterday afternoon?5. I was

19、 playing computer games when my mother came into my room. (同义句转换) _ I was playing computer games, my mother came into my room.What was doingWhile 4. She was doing her homework I. 根据汉语意思完成下列英语句子，每空一词。1. 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。 My mother _ _ clothes _ I _ home yesterday.was washingwas doingwhen gotI. 根据汉语意思完成下列英语句子，每空一词。was 3. 你做作业时，你妹妹在干什么？ What _ your sister _ _ you _ _ your homework?while were doingwas doing