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When was it invented 教学 目标知识与技能： 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. 被动语态的用法。过程与方法：训练法，熟能生巧法，通过练习巩固复习所学知识。情感态度价值观: 通过语法归纳与呈现，不同形式的练习训练，来巩固被动语态的用法，增强对英语学习的自信心。教学方法任务型教学法 讲授法学习方法Individual learning method, Cooperative learning method教学准备Textbook, PPT教 学 过 程设计意图Step 1 Grammar Focus. 1. 学生阅读Grammar Focus中的句子，然后做填空练习。1)拉链是什么时候被发明的？ _ _ the zipper _? 2)它于1893年被发明。It _ _ in 1893. 3)它是由谁发明的？ _ _ it invented _? 4)它是由惠特科姆贾得森发明的。It _ _ _ Whitb Judson. 5)茶叶什么时候被带到朝鲜去的？ _ _tea _ to Korea? 6)茶叶在六到七世纪之间被带到朝鲜。 It _ _ to Korea _the 6th and 7th centuries. 7)热冰淇淋勺用来做什么？ What _ the hot ice-cream _ _? 8)它用于挖很冷的冰淇淋。 Its _ _ _ really cold ice-cream. 9)电话机在1876年被贝尔所发明。 The telephone _ _ _ Alexander Graham Bell in 1876. 10)贝尔于1876年发明了电话机。 Alexander Graham Bell _ the telephone in 1876. 2. 学生们根据记忆，看大屏幕来完成填空练习。3. 学生们完成填空试题后，可以打开课本检查答案，对错误的句子，单独进行强化记忆。Step 2 Grammar1. 一般过去时态的被动语态的构成英语有两种语态：主动语态和被动语态。主动语态表示主语是动作的执行者，而被动语态则表示主语是动作的承受者。如：We cleaned the classroom yesterday. 我们昨天打扫了教室。(主动语态，主语we是clean这一动作的执行者)The classroom was cleaned yesterday. 教室昨天被打扫。(被动语态，主语the classroom是clean这一动作的承受者)2. 一般过去时被动语态一般过去时被动语态的结构为“主语+ was /were +及物动词的过去分词 (+by+动作的执行者).”。如：Trees were planted last spring 去年春天种了树。1）肯定句主语 + was/were +及物动词的过去分词+其他。e.g. Paper was invented by Chinese people two thousand years ago. 纸是中国人在二千多年前发明的。 2）否定句主语 + was/were not +及物动词的过去分词+其他。e.g. Women were not allowed to take part in the Olympic Games at first. 开始妇女不允许参加奥运会。 3）一般疑问句Was/Were +主语 +及物动词的过去分词+其他? e.g. Were these pictures drawn by your sister? 这些图片是由你妹妹画的吗？ Step 3 PracticeWork on 4a1. Tell students to read the sentences in 4a and rewrite the sentences using the passive voice. 2. 最后，教师与同学们一起校对答案，并对学生们有疑问的地方进行解释，或做出合理的分析点拨。Where were these photos taken? We were advised not to go out alone. The book was translated into different languages by different writers. Work on 4bplete the sentences with correct forms of the verbs in the box. 1. 让学生们阅读方框中的词汇，了解词汇及句子的意思，为填词做好准备。eat, like, invite, tell, lock, ring, break, bring2. 认真阅读每个句子，根据上下文确定空格处应填的意思。3. 逐句进行分析推敲，然后分析句子的时态及语态，用适当的形式填空。4. 最后，通读一遍所有句子，进行综合理解，看句子的意思是否通顺，合理。5. Check the answers with the students. Step 4 Practice Work on 4c: Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks. 1. 先通读小短文，了解大意。2. 逐句分析每一句话的意思，确定句子主语和谓语动词之间主动或被动关系。3. 结合句子的时态，填上正确的形式。4. 复读短文，看是否通顺。5. Check the answersStep 10 Homework 1将下列句子变为被动语态。 1）He chose six story books the other day. Six story books _ _ by him the other day. 2）Uncle Lee gave Jack a large cake for he painted the wall wonderfully. Jack _ _ a large cake for he painted the wall wonderfully. 3）A mouse ate half of the cake last night. Half of the _ _ by a mouse last night. 2将下列句子变为主动语态。 1）Were these machines invented by Edison? _ Edison _ these machines? 2）The post card was sent to Linda by Paul. Paul _ the post card _ Linda. 3）Was America discovered by Columbus? _ Columbus discovered _? Make students get involved in the this class.By presenting grammar rules and doing exercises, students can master the passive voice better.板书设计Unit 6 When was it invented?1. 被动语态 当主语为动作的执行者时, 谓语的形式为主动语态; 当主语为动作的承受者时, 谓语要用被动语态。2. 一般过去时被动语态一般过去时被动语态的结构为“主语+ was /were +及物动词的过去分词 (+by+动作的执行者).”。如：Trees were planted last spring 去年春天种了树。 教后反思
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