人教版九年级全册Unit 6 When was it invented？SectionA 1a-1d 教案

Unit 6 When was it invented 教案
【教材内容分析】
本单元主要围绕着“invent ( http: / / www.21cnjy.com )ions”这个核心话题，通过“Talk about inventions”，学习一般过去时被动语态的陈述句和疑问句。
【教学目标】
（一）语言目标
1、掌握一般过去时的被动语态和特殊疑问句。
2、功能句式：Talk about ( http: / / www.21cnjy.com ) inventions
When was (the telephone ...) invented
I think it was invented in ... I think (the telephone ...) was invented before / after ...
Who was it / were they invented by
It was / They were invented by ... What is it / are they used for？
It is / They are used for ...
What do you th ( http: / / www.21cnjy.com )ink is the most helpful / annoying invention
I think the most helpful / annoying invention is ...
3、语法：The Passive Voice:
1. When was / were ... invented
2. Who was / were ... invented by
3. What is / are ... used for
（二）认知目标：
弄清主动语态与被动语态的差异，通过练习和运用加以巩固。
情感目标：
1.通过本单元学习使学生懂得人类的科学发明创造了丰富的物质文明，了解中外发明者的事，增强民族自豪感，勤奋学习，立志为社会多作贡献的精神。
2.能客观的认识自己，培养学生的创造发明的能力和愿望,
（三）文化意识目标：
通过对中国发明创造及外国先进文明的了解，开阔眼界，为促进东西方文化交流打好基础。
（四）学习策略目标：
1． 认知策略：通过收集信息，相互交流的方式，了解中外发明家及其发明， 培养观察力注意力想象力及逻辑推理能力。
2． 交际策略：在谈论个人看法的过程中，学会欣赏别人，学会与人沟通。
3． 资源策略：通过谈论一些发明的背景用途等，把相关学科的信息联系起来，体现学科融合，资源共享的现代教学方法。
【教学重点】
1、To learn to use Passive voice (questions and statements)
2、To listen, talk and read about invention
【教学难点】
Train students’ listening, speaking, reading and writing skills.
【教学方式】任务型教学法，多媒体辅助教学等等。
充分利用多媒体等教学设备，设计与本课话题相 ( http: / / www.21cnjy.com )关的情景，如不同种类的发明，人物，实物等等。围绕着本单元的教学目标，设计一些贴近学生实际的教学任务，让学生谈论身边的发明如电话、电脑、汽车、茶叶、篮球以及对一些当代发明的看法;让学生根据所学知识,自己进行创新设计等等.
【课时分配及教学内容】
Period 1 (Section A 1a ---2d)
Period 2 (Section A 3a ---3c)
Period 3 (Section A Grammar focus & 4a ---4c) 【来源：21cnj*y.co*m】
Period 4 (Section B 1a --- 2e)
Period 5 (Section B 3a----3b & Self check )
Period 1 Section A 1 (1a-2d)
一、教学目标：
1. 语言知识目标：
1) 能掌握以下单词： heel, scoo ( http: / / www.21cnjy.com" \o "欢迎登陆21世纪教育网 )p, electricity, style, project, pleasure, zipper, daily, website, pioneer, list, mention www-2-1-cnjy-com
能掌握以下句型：
① —When was the telep ( http: / / www.21cnjy.com )hone invented —I think it was invented in 1876.
② —What are they used for —They are used for seeing at night.
2) 能谈论物品被发明的时间、发明者，表达某发明的用途。
2. 情感态度价值观目标：
了解一些近现代发明的时间及 ( http: / / www.21cnjy.com" \o "欢迎登陆21世纪教育网 )用途，激发自己热爱发明的情感。培养想象力，善于观察
事物面对难题，用积极的态度去解决，发挥想象力，认识世界，改造世界。
二、教学重难点
1. 教学重点：
1) 本课时的单词、词组和句型，学习运用一般过去时态的被动语态。
2) 学会询问发明时间及用途的基本句型：
—When was the t ( http: / / www.21cnjy.com )elephone invented —I think it was invented in 1876.
—What are they used for —They are used for seeing at night.
2. 教学难点：
运用一般过去时态的被动语态来讨论发明的发明时间及用途。
三、教学过程
Step 1 Warming up
1. 展示一些近代发明的图片与近代发明的发明者，让学生们将图片与发明者相连。
1. Do you know What are the Four Great Inventions in ancient China
The four great inventi ( http: / / www.21cnjy.com )ons: Printing, gunpowder, paper-making and the compass are the four great inventions of the ancient China. They were invented by Chinese. They still play an important part in the modern world.
2. Talk about other inventions in the world.
Step 2 Presentation
引导学生们学习一般过去时态的被动语态结构。
让学生们看大屏幕的如果爱和发明者的图片,并将句子改为被动语态。
如：
T: Karl Benz invented the first car in 1885.
The first car was invented (by Karl Benz) in 1885. www.21-cn-jy.com
Step 3 Talking
1. Look at the pi ( http: / / www.21cnjy.com" \o "欢迎登陆21世纪教育网 )ctures in 1a. Discuss with your group, in what order do you think they were invented Try to number them [1-4]. 【版权所有：21教育】
2. Ss discuss with their partners and number the pictures.
3. Talking about the inventions:
A: I think the TV was invented before the car.
B: Well, I think the TV was invented after the TV.
Step 4 Listening (1b)
1. T: Tell Ss look at the pictures and years on the left.
2. Play the recording for the Ss to listen.
3. Ss listen to the ( http: / / www.21cnjy.com" \o "欢迎登陆21世纪教育网 )conversation and try to match the invention with the proper year.
4. Play the recording again.
5. Check the answers.
Step 5 Pair work (1c)
1. Ss try to remember the invention and the year.
2. Student B ( http: / / www.21cnjy.com" \o "欢迎登陆21世纪教育网 ), cover the dates. Student A, ask Student B when the things in the picture in 1b were invented. Then change roles and practice again.
3. Let some pairs ask and answer in pairs.
e.g. A: When was the telephone invented
B: I think it was invented in 1876.
…
Step 6. Learning the new words & Listening
Look at the pictures then learn the new words.
Work on 2a:
T: Tell Ss they will hear some interesting inventions.
1. Look at th ( http: / / www.21cnjy.com" \o "欢迎登陆21世纪教育网 )e pictures in 2a. Discuss the things what they are used for.
2. Play the recording for the Ss to listen and number the pictures.
3. Play the recording again to check the answers. 【来源：21·世纪·教育·网】
Work on 2b:
1. Let Ss rea ( http: / / www.21cnjy.com" \o "欢迎登陆21世纪教育网 )d the chart below. Explain some main sentences for the Ss. Make sure they know what to do.
2. Play the recording for the Ss to fill in the blanks. 【版权所有：21教育】
3. Play the recording again to check the answers.
4. Listen again and fill in the blanks.
Step 7 Pair work (2c)
1. Tell Ss to make ( http: / / www.21cnjy.com" \o "欢迎登陆21世纪教育网 ) conversations using the information in 2b. Make a model for the Ss.
A: What are the shoes with special heels used for
B: They are used for changing the style of the shoes.
2. Let some Ss make conversations using the information in 2b.
3. See which group does the best.
Step 8 Role-play(2d)
1. Read the conversations and Let Ss read after the teacher.
2. Explain some new words and main points in the conversation.
3. Read the passage quickly and answer the questions.
1. What is the subject for their school project
2. What kind of invention does Roy think of
3. Why does Roy think it is a great invention
4. Who and when was the zipper invented
5. When did the zipper become popular
4. Ask Ss to role-play the conversation in groups.
Step 9 Language points
1. the style of the shoes 鞋子的款式
(1) style名词，意 ( http: / / www.21cnjy.com )为“样式；款式”。其常用短语 in style意为“时髦的”，其反义短语为out of style, 意为“过时的”。
This year's ( http: / / www.21cnjy.com )style in dresses is different from last year’s.今年的服装样式与去年的不同。
(2) style作名词，还可意为“方式”。
Our children need new learning styles.我们的孩子需要新的学习方式。
2. My pleasure! 非常愿意！
pleasure (a state of feeling or being happy)
名词，意为“高兴;愉快”。
He takes no pleasure in his work.他从工作中得不到丝毫的乐趣。
—Thanks for helping me.谢谢你帮助了我。
—My pleasure. / It s a pleasure. 别客气。
3. Think about how often it’s used in our daily lives.
想想看,在我们的日常生活中它被使用得多么频繁。
(1) daily (happening, done or produced every day)
形容词，意为“每日的；曰常的”。
Don’t you read the daily news in today’s newspaper 你没有读今天报纸上的每日新闻吗
(2)daily (every day)副词，意为“每日;每天”
The milkman comes daily to our house. 送奶人每天都到我们家来送奶。
【拓展有关think的短语】
think of 指“考虑, 记忆, 记起”
I can’t think of his name at the moment. 我一时想不起他的名字。21世纪教育网版权所有
think sth. over指“仔细想, 审慎思考, 作进一步考虑”。
Please think over what I said. 请仔细考虑我说的话。
4. Well, you do seem to have a point ...嗯，看来你说的确实有道理……
have a point固定短语，意为“有道理”
You have a point — It would be better to wait till tomorrow.2·1·c·n·j·y
你说的有道理，还是等到明天比较好。
5. The pioneers of ( http: / / www.21cnjy.com ) different inventions were listed there.各种发明的先驱者们被列到了上面。
(1) pioneer (a person who does something first)
可数名词，意为“先锋；先驱”。
China Young Pioneers意为“中国少年先锋队”。
He is a computer pioneer.他是计算机方面的先驱。
(2) list动词，意为“列表;列清单”。
List them and you will never forget把它们列出来你就不会忘记了。
list用作名词，意为“名单；清单”。
I did not see his name on the list. 我在名单上没有看到他的名字。
6. For example, it m ( http: / / www.21cnjy.com )entioned that the zipper was invented by Whitcomb Judson in 1893.
例如, 它提到拉链是在1893年由惠特科姆.贾德森发明的。
mention动词，意为“提到，说到”其后可接 that 引导的宾语从句。
He mentioned that the food was invented by a Chinese.
他提到这种食物是由一个中国人发明的。
① mention sb./sth. (to sb.) (向某人)提起某事
Don't mention it before the children.在孩子们面前提及此事。
Nobody mentioned anything to me about it.没人向我提过这事。
② mention doing sth.提到做某事
Whenever I mention having dinner together, he says he’s too busy.
无论何时我一提起 块儿吃顿饭，他就说太忙。
“Don’t mention it.”主要用来回答感谢，有时也来回答道歉。
—Thank you very much.多谢你 了。—Wont mention 不客气。
— I’m sorry to trouble you.对不起，打扰你了。
— Wont mention it.没关系。