英语人教版八年级下册Unit 5 Section A 1a-2c.doc

课题Unit5: What were you doing when the rainstorm came? 课型新授授课时间学习目标1. 学习并掌握下列单词：rainstorm, alarm, go off, begin (began), heavily, suddenly, pick up (the phone), strange 2. 能正确使用以下常用表达： so that, wake up, go off, pick up, wait for, look for, at the time of 3. 能熟练掌握并使用下列重点句式：1）What was the girl doing at the time of the rainstorm? She was 2）What were you doing last night? I was . 3) While you were sleeping, I called Jenny and she helped me.4) When you called, I was taking a shower.4. 学会过去进行时态的构成和用法。重点过去进行时态的构成和用法。难点when；while引导时间状语从句主从句的时态特征。掌握句型1.But I could hear the heavy rain against my bedroom window.2.昨天的暴风雨是今年至今为止最大的一场。3.暴风雨时，人们在做什么？4.但是，我能听到大雨打我卧室窗子。5.看起来，昨天许多人被困于雨中。 教学过程一、学习单词1师友朗读2、 教师检测：二、学习对话1、师友感知Read again and fill in the blanks. What _ people_ at the time of the _? The girl was at home _.The boy_ at the library after school.The woman_ after work.The man_ from the supermarket.2、教师引领三、拓展提高1、 师友练习Read 2b;Look at the statements below. Are they true or false?1. The boy didnt wake up until seven thirty because his alarm didnt work. ( )2. He arrived at school at eight. ( )3.He still didnt catch the bus although he ran to the bus stop.( ) 4. While he was waiting for the bus, it suddenly started to rain heavily. ( ) 5. While he was busy looking for the umbrella in his schoolbag, a car came and got water all over him. ( )师友讨论 探究点一： 过去进行时的结构：肯定： 否定：疑问：过去进行时的用法：1.2.师友讨论探究点二：When ；while引导的时间状语从句的主、从句时态特征，及使用语境。三、拓展提高 2. 教师点拨 Read the dialogue in 2d, then answer the questions below. 1. What was Linda doing at seven last night? 2. What was Linda doing at eight? 3. What was Linda doing at nine? 4. Why did Mary call so many times? 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？2、教师点播请仔细观察下面的例句，然后补全空格中的内容。 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。 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 _ 时态，从句用过去进行时态。 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。四、互助巩固1、 师友巩固：1. I _ a meal when you _ me.A. cooked; were calling B. was cooking; calledC. was cooking; were calling D. cooked; called2. David _ with his mum at that time.was talking B. talkedC. talks D. is talking3. I _ the guitar at this time yesterday.playing B. playC. was playing D. played4. He _ his father on the farm the whole afternoon last Saturday.helps B. would help C. was helping D. is helping5. . He _ his father on the farm the last Saturday.helped B. would help C. was helping D. is helping2、教师强调：When既可引导过去进行时，又可引导一般过去时；while多引导过去进行时；引导一般过去时多为系表结构极少用行为动词过去式。eg: The rainstorm came while I was waiting for the bus. The rainstorm came while I