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    2021年春人教新目标版英语八年级下册Unit 5 Section A GF-4c课件.pptx

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    2021年春人教新目标版英语八年级下册Unit 5 Section A GF-4c课件.pptx

    1、1.过去进行时态过去进行时态. 2. Learn when 和和while的用法的用法 3. Learn some new words,phrases and the basic sentence structures. What were you doing at eight last night? I was taking a shower. What was she doing at the time of the rainstorm? She was doing her homework. Grammar Focus What was he doing when the rainsto

    2、rm came? He was reading in the library when the rainstorm came. What was Ben doing when it began to rain heavily? When it began to rain, Ben was helping his mom make dinner. What was Jenny doing while Linda was sleeping? While Linda was sleeping, Jenny was helping Mary with her homework. was/were +

    3、v-ing 表示表示过去过去某一时刻或某段时间内某一时刻或某段时间内正在进行正在进行的动作。的动作。 past now is/are + v-ing at 10:00am yesterday We are learning now He was running 探索一:过去进行时的结构探索一:过去进行时的结构 (陈述句)陈述句) 基本结构:基本结构:主语主语+ was/were + v-ing +其它其它 Structure 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(否定句)否定句) 思考 否定句在否定句在_后面加后面加not。 was或或were was not = wasn

    4、t 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) 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,也要使用回答时,也要使用_. was或或were was或或were Yes, they were. / No, they werent. Yes, he was. No, he wasnt. 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不同吗? 请仔细观察下面的例句,然后补全空格 中的内容。 主句的动作是持续性的,而从句动作是 短暂性的,此时用 _

    5、 引导时间状语从 句,主句用 _ 时态,从句用一般 过去时态。 I was walking to school when I saw a cat in a tree. When Sally arrived home, her mother was cleaning the house. 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 是持续性的,此时用 _ 引导从 句,主句用

    6、_ 时态,从句 用过去进行时态。 一般过去 while While Andy was waiting for the bus, he was reading a newspaper. He was cleaning his car while I was cooking. 主句和从句的动作在过去的某时刻或某 段时间同时发生,而且动作都是持续性 的,此时用 _ 引导从句,而且主 句和从句都用 _ 时态。 过去进行 while 1) when可指时间点可指时间点, 又可指时间段又可指时间段, 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

    7、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。 Summary: John _ when Mary bought a drink. was taking photos John was taking photos , Mary bought a drink. when _ While take photos play the piano clean the room shop buy a drink leave the house turn on the radio take the car to the car wash John was shopping

    8、 when Mary took the car to the car wash. While John was shopping, Mary took the car to the car wash. John was cleaning the room when Mary turned on the radio. While John was cleaning the room, Mary turned on the radio. John Mary while when actions that can last for a long time actions that happen an

    9、d stop in a moment John was playing the piano when Mary left the house. While John was playing the piano, Mary left the house. 4a 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

    10、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. But luckily the driver _ fine. The roads _ icy because of the heavy snow from the night before. While was was While When

    11、was was were 4b What were you doing at these times last Sunday? Fill in the chart. Then ask your partner. You Your partner 9:00 a.m. sleeping doing her homework 11:30 a.m. 4:00 p.m. 9:00 p.m. 4c A: What were you doing at nine oclock last Sunday morning? B: I was sleeping. How about you? A: I was doi

    12、ng my homework. B: Youre kidding/a good boy/girl. What was he doing when the rainstorm came? He was reading in the library when the rainstorm came. What was Ben doing when it began to rain heavily? When it began to rain, Ben was helping his mom make dinner. What was Jenny doing while Linda was sleep

    13、ing? While Linda was sleeping, Jenny was helping Mary with her homework. 本课句型 过去进行时构成:过去进行时构成: was/were +doing 相关的时间状语:相关的时间状语: at this (that)time yesterday、at ten oclock last night、from 6 to 9 last Sunday、those days ,the whole day等等 肯定句:肯定句: 主语主语+was/were +doing 否定句:否定句: 主语主语+was/were +not +doing 一

    14、般疑问句问与答一般疑问句问与答: Was/Were+主语主语+doing? Yes, 主语主语 was/were. No,主语,主语 wasnt/werent. 特殊疑问句:特殊疑问句:特殊疑问词特殊疑问词+was/were+主语主语+doing? When与与while的用法:的用法: 过去进行时过去进行时(延续性动词延续性动词)+ when + 一般过去时一般过去时(非延续非延续性性动词动词) 一般过去时一般过去时+ while + 过去进行时过去进行时 过去进行时过去进行时 + while +过去进行时过去进行时 一、单项一、单项选择题选择题 1. When you _me last n

    15、ight, I _the piano. A. were calling; was playing B.were calling; played C. called; played D. called; was playing D 2. - Did you hear someone knock at the door just now? - Sorry, I_ to my friend on the phones. A. was talking B. talked C. am talking A 3. - When did the classroom have power cut? - This

    16、 morning, while we _ a physics lesson. A. have had B. were having C. are having D. will have B 4. - What is the matter, Jack? - I _ down while I _ on the ice. I got hurt badly. A. was falling, skated B. fell, was skating C. fell, skated D. was falling, was skating B . 根据各题后括号内的要求完成下列各根据各题后括号内的要求完成下列

    17、各 题,每空一词(含缩略形式)。题,每空一词(含缩略形式)。 1. I was running in the park at 7:00 yesterday morning. (改为一般疑问句并改为一般疑问句并 作肯定回答作肯定回答) _ _ _ in the park at 7:00 yesterday morning? _, _ _. Yes I was Were you running 2. I was flying kites with my friends at this time last Sunday. (对划线部分提问对划线部分提问) _ _ _ _ at this time l

    18、ast Sunday? 3. They were playing basketball from three to four yesterday. (改为否定句改为否定句) They _ _ basketball from three to four yesterday. werent playing What were you doing 用所给单词的适当形式填空用所给单词的适当形式填空 1.What_ you_ (do) when he arrived? I _(watch) TV at that time. 2.Bob _ (shop) when I _(go) to the park.

    19、 3.I saw some kids_(play) football over there. 4.She _(read )books while her mother _(cook) yesterday afternoon. 5.Its raining_(heavy) outside. were doing was watching was shopping went playing was reading was cooking heavily Read the text again and remember the language points. Make sentences using “when”and “while” Finish 4a、4b and 4c.


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