Unit 6 课时3 Section A（Grammar Focus-4c）（导学案）英语人教版2012九年级全一册

Unit 6 When was it invented ? Section A (Grammar Focus-4c) 导学案 班级： 学生姓名： 科目： 授课教师： 学习目标 1.掌握常用词汇及句型:fridge; low; somebody;all of a sudden等;能够准确地将主动语态与被动语态进行句式转换。（学习理解） 2.正确理解和使用一般过去时被动语态结构；理解并识别被动语态的特殊情况(双宾语、主动表被动等)。（运用实践） 3.通过一般过去时主动语态与被动语态的对比，能总结出转换规律和结构, 并建立相关知识之间的联系。（迁移创新） 学习 重难点 1. 掌握一般过去时主动语态变被动语态结构：was/were+ done +by+其他； 2. 区分被动语态特殊用法(双宾语、短语、主动表被动等)，能正确运用被动语态。 课前预习 一般过去时的被动语态 1.结构： 一般过去时的被动语态表示主语是过去某个动作的承受者，谓语动词由“_________________________”构成。 2.句型： (1)肯定句：主语+_____________________________+其他. 例句：_______________________________________________________________. 纸是中国人在二千多年前发明的。 (2)否定句：主语+_____________________________ +其他. 例句：_______________________________________________________________. 这些书没有按时归还。 _________________________________________________________ 课堂探究 Lead in 1.First, Greet the class 2. Let Ss watch a video about “passive voice” 3.Presents the comparison about active voice and passive voice. 4.Talk about the following inventions using the patterns: 5.Complete the sentences according to the Chinese and pictures: Grammar 1.Grammar Focus.Ask Ss to read the sentences in aloud. 2.Have Ss focus on the two sentences. 3.Lead students think about how to turn the Active Voice into a past tense. 4.Get Ss read the sentences in Grammar Focus again, observe and find out the passive voice. What’s its form?what do these sentence have in common? 5.Show some sentences and lead Ss to analysis the structure of them. 6.List some special situations about passive voice. Practice Production 1.Ask Ss to read the sentences in 4a and rewrite the sentences using the passive voice. 2.Work on 4b. Complete the sentences with correct forms of the verbs in the box. 3.Work on 4c.Decide whether active or passive forms should be used in these sentence. Write the correct forms in the blanks. 随堂练习 一、根据句意及首字母提示完成句子 1. Please put the food into the f____________to keep it fresh. 2. It was unlucky that thousands of people died in the e____________. 3. When the bell r____________, everyone rushed out of the classroom. 4. John is talented because he can play nearly every musical i____________. 5. The prices of these fruits are so l____________that they are sold out quickly. 二、用括号内单词的适当形式填空 1.The new school library ____________(not build) last Septe mber. 2.All the problems ____________(solve) by the famous engineer two days ago. 3.I __________(tell) to wait at the gate at 8 o'clock.But he didn't turn up at that time. 4.I __________(buy) the watch two months ago and it ___________(steal) just now. 5.She ___________(lose) her handbag on the bus.Luckily， it ___________(find) in the end. 三、根据汉语提示完成句子 1. 他的发明被低价出售了。 His invention was sold ________________. 2. 他的小说被翻译成了英语。 His novel was _______________ English. 3. 突然，所有灯都灭了。 _________________，all the lights went out. 4. 二胡是有名的中国乐器。 Erhu is a well­known Chinese _____________________. 5. 所有学生离开后，教室被锁上了。 The classroom ________________ after all the students left. 四、将下列各句改为被动语态 1. They planted the trees ten years ago. The trees __________ __________ ten years ago. 2. The two boys ate the biscuits just now. The biscuits __________ __________ by the two boys just now. 3. Mo Yan wrote the book three years ago. The book __________ __________ ___________ Mo Yan three years ago. 4. When did they bring the pieces of clay to Western countries? When ___________ the pieces of clay ___________ to the Western countries? 5. The terrible storm broke the windows of the houses in this area last night. The windows of the houses in this area __________ __________ by the terrible storm last night. 课后作业 必做题：掌握你在本课中学到的内容。 探究性作业：根据4c段落的内容，制作一张关于电话发明历史的概念图。 【参考答案】 课前预习 课前预习 1.was/were＋动词的过去分词 2.(1)was / were+及物动词的过去分词 Paper was invented by Chinese people two thousand years ago. (2)was/were not+及物动词的过去分词 The books were not returned on time. 课堂探究 Lead in 1.略 2.略 3.略 4.略 5. Grammar 1.略 2. 3. 4. 5.略 6. Practice 1 2. Production 1. 2. 3. 课堂练习 学科网（北京）股份有限公司2 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $$