1、Unit 12 Life is full of the unexpected.Section A (Grammar focus4c)导学案【学习目标】1学习掌握下列词汇：cream, workday, pie, show up, bean, market, by the end of2. 能比较流利地讲述自己曾经有的特别的经历。3. 巩固过去完成时的用法。4. 能比较流利地讲述自己曾经特别的一天，养成积极看待事物的积极心态。【重点难点】 【学习重点】1复习巩固Section A 部分所学的生词和词组，达到熟练运用的目标。2总结过去完成时的不同句型。【学习难点】过去完成时的用法。【自查自学】新词
2、自查根据汉语提示完成单词。1. There is a big _ (市场) near my house.2. I usually have _ (奶油) cakes for breakfast.3. These green _ (豆荚) look good. Lets buy some.4. Hector gets back from work very late on_ (工作日).5. The apple _ (果馅饼) are delicious. Would you like some?6.We are flying a the clouds. How wonderful!7.Jame
3、s lived with his parents t he was twenty-five.8.David lives three b away from here. Lets visit him now.9.Bad! Were too late. The subway had l .10. The moon was a_ the trees in the east.语法自查1.Before I repaired my bike, my mother (buy) a new one for me.2.By the time he was 26 years old, he and his par
4、tners (build) a successful fashion company.3.Mike told me that he (study) English for five years. 4.When the Kings got to the airport, the plane (take) off.5.Tom (say) he (read) the book twice by 2020. 6. I _ (memorize) 900 English words when I _ (be) ten.自主学习探究1.预习检查。2. 阅读Grammar Focus，回顾复习语法重点。3.
5、完成教材4a-4b的任务1) 参照例句用by the time或before造句。2) 用4b方框中所给单词的正确形式填空完成句子。探究一、观察并总结下列例句的句型特点。1) When he came in, the students stood up.2) When the baby saw her mother, she stopped crying.3) He was about to watch a movie when his parents knocked at the door.4) They were about to get on the bus when they hear
6、d someone shout.Have a discussion:在以上的时间状语从句中，主句和从句的动作是先后发生还是同时发生？主从句都用过去时态的时间状语从句的引导词有什么？ 二、观察下列过去完成时态的例句，了解过去完成时态的结构和用法。1) When she got to the check-out, she realized she had left her purse at home.2) Before I arrived at the airport, the plane had already taken off.3) They had already had breakfas
7、t before they got to the hotel.4) Most of the guests had left by the time he arrived at the party.5) The film had already begun by the time I got to the cinema.Have a discussion:1.过去完成时的结构： 2.过去完成时的用法： 3.一般过去时态和过去完成时态的区别： 过去完成时态1概念：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，即“过去的过去(past in the past)”。2构成：过去完成时由
8、“助动词(had)过去分词”构成，其中had通用于各种人称，否定式为“had not过去分词”，had not可缩写为hadnt。如：They had already had breakfast before we arrived at the hotel.在我们到达酒店之前，他们已经吃过早饭了。She hadnt finished writing the composition by 10：00 this morning.今天早上十点之前她还没有写完作文。3过去完成时的主要用法(1)过去完成时表示一个动作或状态在过去某一时间或动作之前已经完成或结束。如：Before she got a ch
9、ance to say goodbye, he had gone into the building.在她有机会说再见前，他已经走进了大楼。(主句的动作发生在“过去的过去”)When I got to the cinema, the movie had already begun.当我到达电影院时，电影已经开始了。By the time I got to school, the teacher had collected the math homework.当我到达学校时，老师已经收了数学作业。We had learned over two thousand English words by
10、the end of last term.在上学期期末之前我们已经学了两千多个英语单词了。(2)过去完成时是一个相对的时态，表示的是“过去的过去”，只有和过去某一时间或某一动作相比较时才使用它。如：He told me that he had written a new book.他告诉我他已写了一本新书。(written发生在told之前)She said that she had seen the film before.她说她以前看过这部电影。(seen发生在said之前)(3)过去完成时需要与一个表示过去的时间状语连用，它不能离开过去时间而独立存在。此时多与already,yet, s
11、till, just, before, never等时间副词及by (by the time),before, until等引导的短语或从句连用。如：Before she came to China, Grace had taught English in a middle school for about five years.在她来中国之前，格蕾斯在一所中学教英语已有五年了。Peter had collected more than 300 Chinese stamps by the time he was ten.到他十岁时，彼得已经收集了300多张中国邮票。She saidshe ha
12、d worked in that hospital for 20 years.她说她已在那家医院工作二十年了。(4)过去完成时表示某一动作或状态在过去某时之前已经开始，一直延续到过去的这个时间。如：By the end of last year, he had worked in the factory for twenty years.到去年年底，他在这个工厂工作已经有二十年了。I met my English teacher on the street yesterday. We hadnt seen each other since I finished school.我昨天在街上碰到了
13、我的英语老师。自从我毕业以来我们还没有见过。【达标检测】一、单项选择。1He _ foreigners in his cafe before, so he didnt know how to serve the American family.A. had rarely had B. had had rarely C. rarely had D. had rarely 2.The student told me that he _ the exam _.A. has had; yesterday B. had; the day before yesterdayC. had had; the d
14、ay before D. had had; yesterday 3. She _lived here for _ years.A. had, a few B. has, several C. had, a lot of D. has, a great deal of4.The meeting _ by the time I got there yesterday.A. was on B. has been on C. had begun D. has begun on5. By the end of last month, I _ all the CDs of Justin Bieber.A.
15、 collect B. collected C. have collected D. had collected6.Did you see Mrs. Lee in the meeting room?No. When I got there, she _ another meeting.A. had left forB. had left toC. was leaving forD. was leaving to7.You didnt watch the movie?Yes, but by the time I _ to the cinema, the movie _ for several m
16、inutes.A. got; has begunB. got; had been onC. got; had begunD. got; has been on8.By the time I up, my brother into the bathroom. I had to wait for him.A. wake; wentB. woke; has goneC. woke; had goneD. wake; has gone9.She told me that she _ a cold for three days.A. has caughtB. had hadC. has hadD. ha
17、d caught10.Two cups of milk tea, please!Sorry, but we _. How about juice?A. will sell outB. had sold outC. have sold outD. sell out参考答案：【自查自学】新词自查1.market 2.cream 3.bean 4.workday 5.pies 6.above 7.till 8.blocks 9.left 10.above 语法自查1.had bought 2.had built 3.had studied 4.had taken 5.said had read 6.had memorized was自主学习探究一同时发生；引导词：when; as探究二1.过去完成时的结构：助动词had动词的过去分词 2.过去完成时的用法：表示一个动作或状态在过去某一时间或动作之前已经完成或结束，即发生在“过去的过去”。3.一般过去时态和过去完成时态的区别：时间状语不同：过去完成时在时间上强调“过去的过去”，而一般过去时只强调过去某一特定的时间。【达标检测】一、ADACD ABCBC
