八年级下册第三单元导学案 (人教版英语八年级) |
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八 年级导学案 授课时间: 2012年 3 月 18 日 姓名 班级 审核人签字 审核日期 课题 Unit3 What were you doing when the UFO arrived? (Section A)第一课时 课型 新授课 执笔者 参与者 Ⅰ、Teaching Aims: 1.学习过去进行时的基本结构及典型句型。 What were you doing when the UFO arrived? 2.学会简单描述过去发生的事情。 3.学会讲简单的故事。 Ⅱ、Teaching Difficulties:1.while与when的用法。2.学习过去进行时的基本结构及典型句型。 Ⅲ、Teaching key points: 1.while与when的用法。2.学习过去进行时的基本结构及典型句型。 Ⅳ、预习交流:翻译下列单词及词组 1、理发店 __________________ 2、出去,离开 __________________ 3、 起飞 __________________ 4、在图书馆前面 _________________ 5、 睡过头,起得晚 ________________ 6、做晚餐 ________________ 7、理发 __________________ 8、在电话上交谈 __________________ 9、制作牛奶奶昔 __________________ 10、吃午饭 __________________ 11、浴室__________________ 12、卧室__________________ Ⅴ、知识梳理: 一、过去进行时:表示在过去某一时间内正在进行的动作。 构成:was / were + 现在分词(其中was是am、is的过去式,were是are的过去式) e.g. I was doing my homework then . 那时,我正在做作业。 用法:1)过去进行时表现过去某一时刻正在进行的动作。 e.g. She was writing a letter when I came in .我进来时,她正在写封信。 2)过去进行时还表示过去某阶段正在进行的动作。 e.g. They were waiting for you yesterday .他们昨天一直在等你。 二、过去进行时与一般过去时的区别: 过去进行时:表示正在进行的动作。 I was reading a novel last night.昨晚我在看小说。(可能还没有看完) I read a novel last night .昨晚我看了一本小说。(已经看完了) 二、以when和while引导的时间状语从句 1)延续性动词指动作可以延续一段时间,而不是瞬间结束。如:work,study,drink,eat等。 2)非延续性动词指动作极为短暂,瞬间结束。如:start,begin,arrive,jump,go, finish,borrow,knock等。 when表示“当……的时候”。它后面既可跟延续性动词,又可跟非延续性动词. 如:Mary was having dinner when I saw her .(当我看到玛丽的时候,她正在吃饭.) while表示“在……的时候”、“在……期间”。while后面必须是表示动作或状态的延续性动词。 如:The weather was fine while we were in Beijing .(当我们在北京的时候天气很好.) 所以, 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。 while总是指一个时间段,从句中必须用延续性动词。 Ⅵ、合作探究: 1.小组合作看图1a ,讲故事。谈论图中发生的故事。 2.小组合作完成1a 。 3.听力提高,认真听录音完成1b, 复述重点句型,理解熟记词汇句型。 4.小结本节课学习的过去进行时基本结构及while与when的用法。 Ⅶ、展示分享: 小组运用while与when讲述过去发生的故事,巩固过去进行时。 Ⅷ、课堂练习:一、单项选择 ( )1. Tom was writing a letter ___________ I called him. A. while B. when C. because D. after ( )2. The plane will ___________ in a few minutes. A. take off B. put off C. take out D. get out ( )3. The man followed the boy ___________ what he wanted ___________ in the room. A. to see, to do B. to see, do C. see, to do D. see, do ( )4. The accident happened ___________ the morning of September 12. A. in B. on C. at D. for ( )5. The driver sits ___________ the car. A. in the front of B. in front of C. in front D. at the front ( )6. ___________we got home, it was 10:00. A. While B. When C. Although D. If ( )7. We find ___________ interesting to see English movies. A. it B. that C. this D. that’s 二、用所给单词的适当形式填空 1.Mary ofen ______up at six o'clock. But she _______(not get)up at this time yesterday. 2.When I came in, Alice _________(lie)in bed. 3.________(not be) late again. Please get to school on time. 4.The plane__________(take off) a five minutes ago. 三、用while或when 填空 1.The girl was shopping ________the alien got out. 2.______ the girl was shopping ,the alien got out. 3.I was doing my homework ________my mother came in. 4.______I was doing my homework ,my mother came in. 5.He called to see me _________I was looking for my bag. 6.________we were talking ,Dad got home. 7.________I was sitting in the barber's chair , my friend phoned me. 8.The Greens were having dinner ________ I visited them. 9.What did you do ________ the UFO landed? 10._______I arrived at the airport , the plane was taking off. Ⅸ、布置作业 练习册阅读理解 Ⅹ、教学反思: |
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