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1、湖南省株洲市天元区八年级英语Unit3 What were you doing when the UFO arrived（2） 学案（无答案） 人教新目标版一、Learning Aims and Demands.（学习目标）:掌握when和while的用法。二、Learning Contents（学习内容） P19（书19页的内容）。三、Directional Guide（定向导学）：. Check (课前抽测5). Prevision（预习导学10）1Self-reading.（独学）读18页内容并找出when和while的区别。【学法指导】：(1). 大声朗读本页内容，划记以下短语和不懂的
2、地方。着陆，降落 从出来 沿着走 起飞 (2)词语辨析。仔细观察以下例句： He was cooking supper when the phone rang. While he was cooking supper, the phone rang.While he was waiting for the bus, it rained.He was waiting for the bus when it rained. 通过以上四个例句，可以得出结论：when和 while 都是引导时间状语从句。When 和while 都有“_”的意思，但_ 通常与瞬间动词也可以与延续性动词连用，而_常延续性
3、动词连用，并且可以强调两个动作（即主句的谓语动作和从句的谓语动作）同时发生。小试身手完成P19 2b，并用when和while填空。What were your classmates doing_ you came into the classroom? _ I was walking to school yesterday,I met my old friend Jenny._ we were playing games,someone knocked at the door.My father was reading the newspaper_ my mother was watchin
4、g TV last night.2.Pairwork and groupwork.对学与群学。(1).讨论划记的短语，并且大声朗读。(2).讨论并记忆when和while的用法。.Show（展示导学20）1.表演2c 2. 将生成的对话写在练习本上。.Feedback（反馈导学10）1.Quiz(检测)完成下列情景对话：A： （1）_ was wrong yesterday? B： A UFO landed （2）_Center Street. A：What （3）_ you（4）_ when the UFO landed? B： I _（5）_(play)in Center Street （6）_it landed. A：（7） _ you see the UFO? B： Yes, I did. A： Did you （8）_(see) （9）_ alien? B： Yes. I （10）_ an alien coming (11)_ of the UFO. A：(12)_ you scared? B：Not really. A：What did the alien (13)_ ? B：He (14)_(walk) down the street and then went (15)_ a store.2.Summing-up (整理)学生将重点整理到书本上。
