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1、滦南县胡各庄镇初级中学九年级英语学教案 课题:Unit 9 When was it invented? Section A 1a2c 第 1课时 课型:展示交流课 主备:杨贵星 审核: 九年级英语组 使用时间: 年 月 日 学习目标 1 知识目标:掌握下面的单词、短语和句子。 A单词 invent calculator inventor invention scoop adjustable heel battery operate battery-operated slipper heat B句子 When was / were . invented? Who was / were . inv
2、ented by? What is / are . used for? C. 语法 学会并掌握被动语态。 2能力目标:能够熟练使用这些含有被动语态的句型结构,来谈论各种发明物的 历史。 3 情感目标:通过各种新奇发明来激发学生学习兴趣,开阔学生的思路,培养 学生的创造能力。 学习重难 点 被动语态的构成及灵活运用。 学习过程 学法指导 (一)预习展示 6分钟(教师寄语:在自主学习中培养能力。) 1.通过自主学习,你能列举哪些重要的语言点,请你和同学们分 享一下。 2.各小组PK:在日常生活中,你发现了哪些重要发明创造,并且 知道它们的发明时间。 【课程导入】生活中的这些发明创造让我们眼花缭乱,
3、让我们一 起来学习一些发明创造、时间以及它们的用途吧! (二)合作交流 20分钟(教师寄语:让我们在学习中获得乐趣) Task1: Learn 1a 写出这五个发明的单词并仿照右边的对话练习会话。Task2. 听力练习(1b)对话练习(1c) 1. 听录音并填空,然后进行对话练习。 看一下哪组同学能 快速、准确的找出 本课的语言点? 联系生活实际,看 一下哪组同学收获 最多? 听力前先熟读所给 信息,为听力做好 准备。When was the telephone invented? It was invented in . When were the cars invented? They w
4、ere invented in . When was the TV invented? It was invented in . When were the calculators invented? They were invented in . When were the computers invented? They were invented in . Task3 Learn 2a-2c 1.写出下列三项发明的名称shoes with adjustable heel _ battery -operated slippers _heated ice-cream scoop_ 2. 听录
5、音并选择填空,然后进行对话练习。 A: What are those? B: They are battery-operated slippers A: What are they used for? B: They are used for A: Who were they invented by? B: They were invented by A: look at this heated ice cream scoop. B: What is it used for? A: It is used for B: Who is it invented by? A: It is invent
6、ed by A: What are those? B: They are shoes with adjustable heels A: What are they used for? B: They are used for A: Who were they invented by? B: They were invented by (三)知识探究 10分钟 (教师寄语:学会合作,乐于合作,提高自我) 1. When was it invented? invent v. 发明,创造 拓展(1) n. 发明家,创造者,发明者 拓展(2) n. 发明(物) ,创造 例如:Do you know w
7、ho computers? 你知道谁发 明的电脑吗? Edison was a great . 爱迪生是一个伟大的发明家。 Edison had 1,093 . 爱迪生有1,093项发明。 2Theyre used for seeing in the dark.它们被用于在黑夜 小组合作完成,看 一下哪组同学完成 的又快又准确!里观看。 be used for表示“被用来做” ,介词for表示目的和用途, 后面接名词或动词-ing形式。 Wood can be used for (make) paper.木材可以被用来 造纸。 拓展含有be used的常用短语: (1)be used as表示
8、“被用作某物” English the second language in many countries. (2)be used by表示“被某人使用” ,后接动作的执行者。 These textbooks students. (3)be /get used to doing sth 表示“ ” She is used to (run) every morning. (4)used to do sth 表示“ ” Miss Li used to (dance) after work. 3.When was it invented ?它是什么时候被发明的? 这句话使用的是_语态: (1). 被
9、动语态表示主语是动作的承受者。而主动语态表示主语是 动作的执行者。 We speak English 我们讲英语。 ( 语态) English is spoken by us. 英语被我们讲。( 语态) (2).被动语态的构成: _ (3).被动语态中的be 是助动词,有人称、数和时态的变化。 (4).被动语态中动作的发出者或执行者做介词by的宾语,放在句 末,by 表示_的意思 总结划线部分的被动语态结构并填空: The classroom is cleaned every day. 一般现在时的被动语态: . The classroom was cleaned yesterday. 一般过
10、去时的被动语态: . The classroom should be cleaned every day. 含情态动词的被动语态: (教师寄语:只有不断总结与归纳,才会更系统更全面) (四)知识反馈:9分钟 1. The bridge _ by the farmers themselves in 1982.A. built B. was built C. build D. was build 2. All the books will _ to the children who live in the small village.A. be sent B. sent C. be send D.
11、 send 3. Keys _ used for _ the doors.A. is, opening B. is, opened C. are, opening D. are, opened 4. My mother told me that my homework must _ on time. 通过这节课的学习, 来试试你的身手吧! (做题时一定要细 心,一定要注意人 称、时态和语态的 变化。) A. finish B. be finish C. be finished D. finished 5. When _ the car _?A. did, invent B. was, inve
12、nted C. does, invent D. in, invented 用所给词的适当形式填空。 1. The telephone_(invent) in 1876. 2. Edison was a great _.He had 1093_ during his lifetime.(invent) 3. I _(not have) a computer when I was young. 汉译英 1.电话什么时候发明的?它是1876年发明的。 _ _ _ 2.它们是谁发明的?它们是 Tom发明的 _ 3.它们是用来干什么的?它们是用来开锁的。 _ 【课后作业】 展开你的奇思妙想,动动脑,动动手,进行一下发明创造吧!我们 将举办一个发明展览,希望能看到你的作品。 (也可将你的想象画 出来) 学后反思