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Unit 6 When was it invented?第三课时Section A（Grammar focus 4c）I. 知识目标类别课时要点重点单词1. low adj.低的，矮的； 2.translate v. 翻译； 3.lock v.锁上；n. 锁；4.sudden adj. 突然的； 重点词组1. at a low price 以一个很低的价格 2. take these photos 拍这些照片 3. go out alone 单独外出 4. translate the book into different language 把书翻译成不同种的语言5. all of sudden突然 6. work on 从事，进行 重点句式1. -When was the zipper invented? -It was invented in 1893.-拉链是什么时候发明的？ -它是在1893年被发明的。2. -Who was it invented by? -It was invented by Whitcomb Judson.-它是由谁发明的？-它是被惠特科姆.贾德森发明的。3. The fridge was sold at a low price. 这个冰箱被以低价卖掉了。4. The students were told not to eat or drink in class. 学生们被告知在课堂上既不吃或喝任何东西。II. 课堂环节自主学习方案【新词自查】根据汉语提示完成单词。1. The boy lost his parents during the last years earthquake (地震).2. The students were asked to translate (翻译) the story into English.3. The police found the lost boy under the destroyed house through an instrument (仪器)。4. I only have some biscuits (饼干) and a glass of milk every morning.5. If you cant eat all these fruit , you may put some into your fridge (冰箱).课堂导学方案Step 1情景导入（参考案例）本课时的主要内容是谈论发明对我们生活的影响，有好的也有不好的。在学习短文之前教师可准备几个与短文内容相关的问题，然后邀请几位同学就提出的问题给出自己的答案或见解。（4分钟）Questions:1. What invention do you like best? Why?_2. What invention do you hate a lot?_3. List as many of them as you can._环节说明：通过带着问题去学习，从而达到导入新课的目的。Step 2. 畅通Grammar Focus回顾语法重点.要求学生分角色问答并翻译表格中的句子。出说被动语态的各种句式的变化形式。并能造出相仿的句子。SA: When was the car invented ?SB: It was invented in 1885.SA: When were electric slippers invented?SB: They were invented last year.SA : Who were they invented by?SB: They were invented by Julie Thompson.SA: What were they used for?SB: They were used for seeing in the dark.简要归纳被动语态的结构及用法。Step 3完成教材4a-4c的任务1. 要求学生翻开课本P44，参照4a所提供的信息和例句，用被动语态改写句子.给出5分钟的时限，并请另4位同学在黑板上改写，全班集体核对答案。（5分钟）参考答案2. My camera was stolen from my hotel room by somebody.3. Where were these photos taken?.4. We are advised by our parents not to go out alone.5.The book was translated by different writers into different languages.2.用所给单词的正确形式完成4b句子。给出5分钟的时限，并请另个5位同学朗读句子，全班集体核对答案。1. were invited 2. were brought 3. was locked, rang 4. were told, broke 5. were eaten, liked3. 先浏览4c的短文，确定空格处的动词是用主动形式还是被动形式，然后用动词的正确形式填空完成短文。给出5分钟的时限，并请1位同学朗读短文，全班集体核对答案。1. was invented 2. was born 3. worked 4. learned. 5. was invented 6. was said 7. is used4. 小结训练。要求学生在规定的时间内完成一个小练习。并请若干学生给出自己的答案。有错误的话及时解决纠正。（2分钟）用所给词的适当形式填空。1. This instrument is used for playing (play) music in class.2. How many magazines were borrowed (borrow) from the library today?3. Edison was a great inventor. He had over 1.000 inventions in his life.(invent). 4.A picture was put (put) on the blackboard before class.5. Plates and dishes werent washed (not wash) after supper yesterday. 环节说明：将听、说、读、写的任务结合起来不仅锻炼了学生的语言综合运用能力，还巩固了学生对目标语言的学习、识记和运用。当堂评价方案（详见当堂训练部分）
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