1、九年级英语第 12单元第 3课时教案Unit 12 Life is full of the unexpected.Section A Grammar Focus- 4c一、 【教材分析】来源:学优高考网来源:学优高考网来源:gkstk.Com知识目标1. 能听、说、读、写下列新词汇：cream, workday, pie, bean, market2. 能正确使用下列常用表达：Show up, by the end of , finish doing, become + adj., come back from 3. 能掌握并熟练用语法要点中的句型：1) When I got to schoo
2、l, I realized that I had left my backpack at home.2) By the time I got back to school, the bell had rung.3) Before I got to the bus stop, the bus had already left .能力目标能运用所掌握的词汇句型和语法进行交流。教学来源:gkstk.Com来源:gkstk.Com目标情感目标能比较流利地讲述自己曾经烦人特别的一天，养成积极看待事物的积极心态。教学重点 总结过去完成时的不同句型。教学难点 学会用过去完成时叙述自己经历的特别的一天。教学方
3、法 归纳法；任务型教学法二、 【教学流程】环节 师生活动 二次备课I. 复习热身1. 检查生词预习情况1). 通过比一比，谁最快的游戏，检查学生对新词汇的预习情况。2). 根据所给汉语提示，写出句中所缺单词。1. Mr. He lives two_(街区 )away from the park.2.Why did you put some red_(豆)into the soup?3.Would you like milk or_(奶油)in your coffee?4. The river goes through the city from _ (西) to east.5.There ar
4、e two big_(市场)near my home.6. The drop in prices was quite_ (出乎意料的).7. The _ (工人) dont like to work on weekends.8. The plane was flying _ (在上面) the clouds.Answers: 1). blocks 2). beans 3). cream4).west 5). markets 6).unexpected 7).workers 8).above2. 自由交谈以小组对话的形式复习巩固上节课所学重要句型，同时为本课学习 Grammar Focus 夯实
5、基础。II. 感知体验 1. 呈现图片和本单元的重要句型，学生根据图片练习对话，观察这些句子的结构，总结本单元的语法要点。1) When I got to school, I realized that I had left my backpack at home.2) By the time I got back to school, the bell had rung.3) Before I got to the bus stop, the bus had already left .2. 总结过去完成时的用法（1）构成：由助动词 had（用于各种人称和数）+过去分词”构成否定式：had
6、not+ 过去分词（2）用法：过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作或状态。（3）它所表示的动作发生的时间是“过去的过去”，表示过去某一时间可用 by ，before 等短语来表示，也可用when，before 等引导的时间状语从句来表示。例如: By the time I came in, Tom had written his name on the blackboard. 当我进来时，汤姆已经把他的名字写在黑板上了。When I got there, you had already eaten your meal. 当我到达那里时，你已经开始吃了。Before I
7、go to the bus stop, the bus had already left.在我到达公交车站前，公交车已经离开了。针对训练1）当我进来时，他已经写完作业了。When I came in he _(finish) his homework.2）直到去年，她已经学了五年的钢琴了。By the time of last year, she _ (learn) the piano for five years.3）在我到达电影院之前，电影已经开始了。The movie _(start) before I arrived at the cinema.3、Grammar FocusAsk s
8、tudents to read the sentences, and understand the meanings of them. Pay attention to the expressions “ by the time, before and when”. 由 by the time, before，when 等引导时间状语从句时，主句常用过去完成时表示动作发生在过去的过去。根据汉语完成句子1)当我到达学校的时候，我才意识到我把书包忘在家里了。_ I got to school, I realized that I _ _ my backpack at home. 2)到我返回学校的
9、时候，铃声已经响过了。_ _ _ I got back to school, the bell _ _.3）我到达公共汽车站之前， 汽车已经离开了。Before I _ _ the bus stop, the bus _ _ _.III. 强化巩固1. Activity 4a1)Ask students to make sentences using by the time or before on their own.2)Ask five students to write their sentences on the blackboard.(1)Tim went into the bath
10、room. Mary got up.By the time Mary got up, Tim had already gone into the bathroom.(2)The coffee became cold. I put cream in the coffee.(3)The teacher collected the math homework. I got to school.(4) I completed the work for my boss. The workday ended.(5)The movie started. I arrived at the cinema.(6)
11、My mother finished making the apple pie. I got home from my language course.3)Check their sentences together in class.Answers:(2)The coffee had already become cold before I put cream in the coffee.(3)When I got to school, the teacher had collected the math homework.(4)Before the workday ended, I had
12、 completed the work for my boss.(5)By the time I arrived at the cinema, the movie had started .(6)When I got home from my language course, my mother had finished making the apple pie.2. Activity 4b1) Let students read the words or phrases in the box and try to understand the meanings of them. Before
13、 starting, have them know the right forms of the verbs.rush-rushed- forget- forgot- forgottenarrive- arrived-arrived go- went-gone show-showed-showed find-found-found2) Fill in the blanks with the correct forms of the words in the box. Before filling in the blanks, let students go through the six se
14、ntences to understand the meanings.rush out forget arrive at go into show up find out3) Check the answers together.4) Give students some time to read the six sentences over and over again.IV. 实践应用1. SpeakingGroup work ：Activity 4c Let students think about his/her day yesterday. Use the sentences in
15、4c to say three more statements about his/her day yesterday.2. Writing practiceLet them write what they just have said about their days yesterday. Ask some students to write on the blackboard.Students check the sentences together.V.总结反馈1.结合板书和课件，盘点所学词汇和短语。Words: cream, workday, pie, bean, marketPhra
16、ses: show up, by the end of , finish doing, become + adj., come back from2. 结合板书和课件，盘点语法要点。1. 过去完成时的构成：_+_2. 过去完成时表示： _3. 过去完成时常与_等引导的时间状语连用。VI. 作业布置1. Review the new words and expressions youve learned today.2. Write down the unexpected in your daily life.3. Preview the new words and expressions.三、 【板书设计】Unit 1 How can we become good learner? Section A Grammar focus 4cWhen, by the time, before + 从句（一般过去时） ，主句（过去完成时）1. When I got to, I realized had left.2. By the time I got back to, the bell had rung.3. Before I got to, the bus had already left.四、 【教后反思】
