人教版九年级Unit 6 When was it invented -Section A Grammar focus 4a—4c-教案、教学设计-市级公开课-(配套课件编号：e0202).doc

1、本部分是对单元重点知识语言结构的总结、训练和巩固，主要学习一般过去时被动语态的结构和用法。包括一 般过去时被动语态的各种句型结构以及一般过去时被动语态的运用。 学情分析：学情分析： 学生在上一个单元已经学习过一般现在时被动语态的用法，对于被动语态有了一个基本的了解。但是，被动语 态的学习难点是过去分词，特别是不规则动词过去分词的的构成，建立被动语态运用意识以及区分主动语态和被动 语态的表意功能。因此，在本课时需要给学生讲解被动语态中需要强调和记忆的几点。 教学目标：教学目标： 1. 复习一般现在时被动语态 2. 重点学习和掌握一般过去时被动语态的结构和用法。 3. 了解并学习含有情态动词的被动

2、语态。 4. 掌握主动语态如何转换为被动语态句型。 教学重点：教学重点： 本课时的重点是学习一般过去时的被动语态及其句式结构。 教学难点教学难点 被动语态需强调和记忆的几点。 教学准备：教学准备： PPT，蜡烛，玻璃杯，香蕉 5 根，2 个苹果，6 个橙子，6 只碗，2 个西红柿，牛奶，矿泉水，饼干，水果刀，牙签， 胡萝卜等零食 教学过程: Step1.Warming-up / Lead-in T: Last week we have learnt the passive voice of simple present tense. Today we are going to learn th

3、e passive voice of past indefinite tense. Show a candle, and light it, saying I lighted a candle, A candle was lighted by me. Tell the active voice and the passive voice. Step2 Presentation 1.Show the pictures, talk about the activities in two voices. 1)They plant trees.The trees are planted by them

4、. 2)The girl waters the flowers.The flowers are planted by the girl. 3)Jack builds the house.The house is built by Jack. 4)The kids fly the kites.The kites are flown by the kids. 2.Explain the two voices 1)主动语态: 主语是动作的执行者 被动语态:主语是动作的承受者 2)主语+be+及物动词的过去分词+by+动作的发出者+其他 4) 复习被动语态的三种形式 一般现在时态的被动语态 一般过去时

5、态的被动语态 含有情态动词的被动语态 3.Fill in the blanks. 1)The computer(invent) in 1946. 2)The blackboard( must, clean). 3)The clothes(wash) by me every day. 4）The glass of tea(drink) just now. 5)The bridge(build) last year. 4. 主动语态变被动语态的步骤： 1)主动语态的宾语变为被动语态的主语。 2）主动句的谓语动词变为 be (is/are/am)+动词的过去分词。 3）主动句的主语变为被动句的宾语，

6、由 by引出。当不强调动作的发出者或者没有必要说出动作的 发出者时，可以省略 by +动作的发出者. 一般现在时： 主动语态主动语态：ManypeoplespeakEnglish. 主语主语谓语谓语宾语宾语 he blackbo ard beforEnglish.is spokenby manypeople 主语主语谓语谓语谓语谓语 一般过去时： 主动语态主动语态：ManypeoplespokeEnglish. 主语主语谓语谓语宾语宾语 被动语态被动语态 Englishspokenby manypeople 主语主语谓语谓语宾语宾语 含有情态动词： 主动语态主动语态：Many peopleca

7、n speakEnglish 主语主语谓语谓语宾语宾语 被动语态被动语态Englishcan be spokenby manypeople. 主语主语谓语谓语宾语宾语 Step3 Consolidation 被动语态被动语态 Have a party to review the two voices using talking aboutwhat you have had or drunk . 板书设计： Unit 6 When was it invented? Grammar Focus 1. The composition of passive voice. 主语+be + 及物动词过去分

8、词+by+动词的发出者+其他（助动词 be 有人称、数、和师太 的变化） 2. The use of the passive voice. 3. The three types of passive voice. 教学反思： 教学过程中较好地设置英语语言环境，引导学生逐渐进入教学内容，以学生为主导，通过任务驱动，调动学生 课堂学习积极性。比较成功地完成了教学任务。教学思路清晰，连贯，课堂师生互动较多，教学环节紧凑，学生学 习激情饱满，各项学习任务都能有效地完成，达到预期效果。但也有很多的不足方面：课堂设计地趣味性，教学活 动地丰富性还远远不够；英语教学语言，教师表现力还有待进一步学习和提高。英

9、语的教学智慧永无止境。 学案学案 一一把下列的主动语态句子变为被动语态的句子把下列的主动语态句子变为被动语态的句子 1.Peopleusewoodformakingtables. _ 2.They sold the fridge at a low price. _ 3.Someone stole my watch. _ 4.We should eat vegetables every day. _ 5.We use pens for writing. _ 二二Complete the sentences with the correct forms of the verbs in the bo

10、x. （用括号内动词的正确形式填空（用括号内动词的正确形式填空。 ） 【eat,like, invite, tell, lock, ring, break, bring 】 1.You _ to the party last night, werent you ? Why didnt you go ? 2.The earthquake happened all of a sudden, but luckily the villagers _ to a safe place. 3.The door _ when we arrived, so we _ the bell. 4.The studen

11、ts _ not to eat or drink in class, but Ruby _ the rule when she started eating a biscuit in science class. 5.The cookies _ by the hungry kids in less than 20 minutes, and they really _ them. Decide whether active or passive forms should be used in these sentences. （使用正确的语态填空）（使用正确的语态填空） Thetelephone

12、_(invent)byAlexanderGrahamBell.He _(born) in 1847. Mr. Bell _(work)on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell _(learn) how to send musical notes through an instrument similar to a telephone. Finally , the telephone _(invent) in 1876. The first sentence that _(say)on the telephone by Mr. Bell was “mr. Watson, come here; I want to see you.” Today the telephone _(use) around the world. 4 4 助动词 be 有人称、数和时态的变 化）