人教版九年级Unit 6 When was it invented -Section A 1a—2d-ppt课件-(含教案)-市级公开课-(编号：e0cb1).zip

教学目标： 1.知识与技能：通过进一步学习语法被动语态，让学生明确被动语态所要 求掌握和理解的内容。 2.过程与方法：通过想、听、说、练等手段，掌握被动语态的构成，并能 准确运用。 3.情感、态度与价值观：通过学生积极参与被动语态练习的过程，培养学 生换位思考的能力。 教学重点：学习被动语态的构成以及用法。 教学难点：被动语态的用法。 教学方法：参与式教学法。 教学用具:搜集书中的句子以及印发的练习题。 教学过程： 一、导入：应用已学的含有情态动词的被动语态的句子导入。 二、归纳： 1. 先请同学们讨论，对被动语态进行归纳总结：被动语态 （一）主语与动词的关系：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。 （二）被动语态的基本结构：be + done（动词的过去分词） 一般现在时态的被动结构：am /is /are + done 一般过去时态的被动结构：was /were + done 一般将来时态的别动结构：will be + done 情态动词的被动结构：情态动词+ be + done （要求学生一定要记住这些结构） （三）被动语态的用法：当我们不知道谁是动作的执行者，或者没有必 要指出谁是动作的执行者时，或者只需要强调动作的承受者时，要用被动 语态。 三、例题解析：（结合习题，教师给学生讲解如何分析并解决问题） 1. They use in class。（变成被动语态） is used by them in class. told a story yesterday.(变成被动语态)(双宾语) was told a story yesterday. 四、课堂练习：（学生完成课堂练习，先个体完成，然后同座核对检查， 最后教师讲解） 1. He writes some letters to his classmate. 2.We must plant more trees next year. 3.Everyone loves him. 4.The teacher gave them some good books. 5.People cant see the stars in the daytime. 五拓展练习: 1.They are going to have an evening party tomorrow. 2.Some workers are painting the rooms now 3 Workers have built the house since two years ago. 4. They will finish the work in ten days. 5. They would have a party the next day. 6.We had received many letters by the end of last week. 7.They have been cleaned the street. 六、教学反思： 1.They make shoes in that factory. 主语主语 +及物动词及物动词 +宾语宾语 Shoes are made (by them) in that factory. 一般现在时：一般现在时： S(主语）主语） +am/is /are +过去分词过去分词 2She bought ten computers last term Ten computers were bought (by her) last term. 一般过去时：一般过去时： S+was/were +过去分过去分 词词 注意：否定及一般疑问句形式和主动语态的形式一致 常见语态转换常见语态转换 一般现在时和一般过去时的被动语态。一般现在时和一般过去时的被动语态。 请将下列主动语态变成被动语态请将下列主动语态变成被动语态 1.Lucy bought some fruit. Some fruit _ _ _ Lucy. 2.Uncle Wang waters the flowers every day. The flowers _ _ _ Uncle Wang every day. 3.Did they build the bridge last year? _ the bridge _ last year? was bought by are watered by Was built 作业布置：作业布置： 复习各种时态的被动语态结构复习各种时态的被动语态结构 ，预习被动语态的一些特殊情况，预习被动语态的一些特殊情况