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视频标签：invented
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视频课题：人教版九年级Unit 6 When was it invented Section A 1 (1a-2d)陕西省优课
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人教版九年级Unit 6 When was it invented Section A 1 (1a-2d)陕西省优课
Unit 6 When was it invented?教学设计
Section A 1 (1a-2d) 吉春燕
一、教学目标： 1. 语言知识目标：
1) 能掌握以下单词： heel, scoop, electricity, style, project, pleasure, zipper, daily 能掌握以下句型： ① —When was the telephone 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 telephone 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 I. 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。 T: Do you know what these inventions are? S1: It’s a car. S2: It’s a telephone.
T: Do you know who these inventors are? S1: Karl Benz S2: Alexander Bell
Let Ss match the inventions and the inventors. Ⅱ. Presentation
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. Ⅲ. Talking
1. Look at the pictures in 1a. Discuss with your group, in what order do you think they were invented? Try to number them [1-4]. 2. 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. Ⅳ. 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 conversation and try to match the invention with the proper year. 4. Check the answers. Ⅴ. Pair work (1c)
1. Ss try to remember the invention and the year.
2. Student B, 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. Ⅵ. Listening Work on 2a:
T: Tell Ss they will hear some interesting inventions.
1. Look at the pictures in 2a. Discuss the things what they are used for. 2. Play the recording for the Ss to listen and number the pictures. Work on 2b:
1. Let Ss read 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. 3. Listen again and fill in the blanks. Ⅶ. Pair work (2c)
1. Tell Ss to make 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. Ⅷ. 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. Ask Ss to role-play the conversation in groups. X. Homework:
Unit 6 When was it invented ?导学案
Section A 1a—2d
【学习目标】
句型：When was the car invented?
弄清一般过去时态的主动语态与被动语态的差异，并通过练习和运用加以巩固。 【学习重点难点】
句型：When was the car invented?
弄清一般过去时态的主动语态与被动语态的差异，并通过练习和运用加以巩固。 【学法指导】
在学习中，懂得人类的科学发明创造了丰富的物质文明，激发创造发明的能力和愿望。并乐于参加学习小组活动，积极合作。 【教学过程】
一、 导入（启发探究 5分钟） 通过课件呈现中国古代的发明:
gun powder/compass/paper making/printing 然后问学生:What are they?
Help the students to say :They are four inventions of China. Get the students to repeat.
叫学生列举一些他们知道的发明,如car,telephone,computer,TV等。 Then show some inventions on the screen to the students:
Telephone, calculator, car, personal computer, TV, light bulb, alarm, clock
Teacher: There are many useful things in the world. They help us a lot in life. (Show some pictures on the screen)
When were they invented?Students: _____________________. ① The telephone was invented in 1876. ② The computer was invented in ... 二、自学（自主探究 5分钟） 翻译下列年代：
1 nineteen seventy- one____________ 2 eighteen eighty-five__________ 3. eighteen seventy-six 4.1927_______________ __ 5.1976______________________ 6. 2010____________________ 三、交流（合作探究 10分钟）
1. 要求学生翻开课本P41，迅速阅读1a部分的内容。并按要求完成课本上相应的任务: Number the pictures.（2分钟）
2. 检查答案，先要求全班一起给出答案并检查讨论。
3. 要求学生听第一遍录音，并完成课本上1b的听力任务: Listen and match the inventions with the years. Check their answers: 读出序号-读出年份-读出完整的句子（2分钟）
4. 完成教材1c的任务，要求学生模仿1a内容，进行对话练习。并邀请2-3对同学当堂进行演示。（3分钟）
5. 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。（5分钟） 用所给单词的正确形式填空：
1) When was the telephone invented (invent)? 2) The computer can help us do math problems (help).
3) In those day, the woman couldn't afford (afford)a TV because they were really expensive.
4) A friend of mine (I) came to see me last week. 5) I think you need to take (take) a history class. 四、总结（引深探究 15分钟）
1.invent (v.)发明；创造invent 指发明创造出自然界本来不存在的东西，如工具、方法、手段、汽车、电器、合成材料等。 【横向辐射】discover, find, create
1.discover是“发现”的意思，是指发现原来就有而一直没被发现，如发现电、煤、石油等矿藏及新星、星系或科学真理等。
Columbus discovered America in 1492.1492年哥伦布发现了新大陆。 2.find的意思是“寻找”，强调找的结果，并不指发现。
I've tried to find another copy but couldn't find one. 我试图再找一本，但没能弄到。 3.create指有目的地把原材料制成新产品，也指创造出原来不存在的或与众不同的事物。
Man creates himself. 人类创造了自己。
【课堂变式】根据语境提示，用invent, discover，find，create的形式填空，完成句子。
1.When _____ the stream engine（蒸汽机） ___? 2.I can’t ____ my bike, I’m looking for it.
3. Scientists are now trying to ___ if this is possible. 4. Do you know who______ the plane？
5. He ____quite a number of wonderful characters in his play. 【解析】I.1.was, invented 2.find 3.discover 4.invented 5. created 五、 单项选择5分钟
（ ）1.The kind of cup is used__________drinking.
A. to B.as C.by D.for
（ ）2.My mother and my sister kept on talking, but my father___silent all the time.
A.got B.kept C.turned D.looked
（ ）3.I think the short story_________by Lu Xun. A.is writing B.is written C.written D.was written （ ）4.--Who________the electric light lamp______? —Edison.
A.was;invented B.is;invented C.was;invented by D.did;invented by
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