辽宁省灯塔市第二初级中学九年级英语全册Unit6Whenwasitinvented第3课时导学案无答案新版人教新目标版通用
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1、When was it invented 【学习目标】 课标要求:1、熟练掌握被动语态用法。2、学会用被动语态表达对创造和发明事物的认识和看法。教学重难点:主动语态被动语态目标达成:1主动结构的宾语变为被动结构的主语;2主动结构的谓语动词由主动语态变为被动语态;3主动结构的主语变为介词by的宾语,组成介词短语,放在被动结构中谓语动词之后。在动作的执行者无须说明或不必强调时,by短语可以省略。、 学习流程: 【课前展示】情境导入: Warm up:Ask the students to practice speaking.A: When was invented ?B: It was inven
2、ted in A: Who was it invented by ?B: It was invented by A: What is it used for ?B: It is used for 【创境激趣】1) 教学helpful, annoyingAsk students to give some examples to show what each word means. For example.A vacuum cleaner is helpful. A very loud truck is annoying.2) 教学3a呈现alarm clock, light bulb, micr
3、owave over, tea, and so on的画面。Then ask the students the following questions.T: Is the light bulb useful or annoying ? ( Opinions may differ. )S1: I think its useful.T: Why is it ?S1: Well, it gives people more time to work and play every day. Then ask the students to make a list of five helpful inve
4、ntions and five annoying inventions on their own. Give the class about five minutes to do this.【自学导航】 Consolidation and ExtensionImagine that you are alone on a tiny island, Choose five inventions you would like to have on the island with you. Tell the group what you chose and why.:【合作探究】 Ask the st
5、udents to work in pair the following talk using the target language.A: What do you think is the most helpful / annoying invention?B: I think the most helpful / annoying invention is A: Why is that ?B: Well, it gives people 【展示提升】 典例分析 知识迁移句型转换1. She was seen to come out of the library by him.(变被动语态)
6、2. When are trees often planted?(变被动语态)3. The League was founded in Guangzhou in 1922(就画线部分提问)4. Did the students wear the school clothes a lot ?(变被动语态)5. Kate took god care of the baby yesterday evening.(变被动语态)6.His aunt bought him a bicycle.(变被动语态)7.His aunt bought him a bicycle.(变被动语态)【强化训练】 典型例题
7、解析:1.老人们被照顾地很好。The old _ _ after well.解析: 这个题主要考查被动语态的结构be + 动词的过去分词和应用,在本题中应该是be looked after.2.You can use the box _ the toys.A. carry B. carrying C. to carry D. carried解析:在这个题目考查一个短语的应用 use sth to do利用某物做某事,因此答案为C。【归纳总结 】本节课主要的内容是主动与被动语态的练习转换。【板书设计】 Unit 9 When was it invented ?句型转换1. She was see
8、n to come out of the library by him.(变被动语态)2. When are trees often planted?(变被动语态)3. The League was founded in Guangzhou in 1922(就画线部分提问)4. Did the students wear the school clothes a lot ?(变被动语态)5. Kate took god care of the baby yesterday evening.(变被动语态)6.His aunt bought him a bicycle.(变被动语态)7.His aunt bought him a bicycle.(变被动语态) 【教学反思】
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