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1、Unit 6 When was it invented?Section A 1 (la-2d)一、教学目标：1 .学习关于发明的单词。2 .能听懂并能简单地谈论发明史。3 .通过开展小组学习活动，能正确地使用一般过去时的被动语态，了解中美发明史的差异，更好 地理解人类发明文化中的瑰宝。4 .通过交流表达和听力训练，引入一般过去时的被动语态“was/were+done”。5 , 了解中美发明史的差异，更好地理解人类发明文化中的瑰宝。二、教学重难点.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：一When was the teleph
2、one invented?一I think it was invented in 1876.一What are they used for?一They are used for seeing at night.1 .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Presentationinvent也发明inventorn.发明家invention n.发明.Edison, a great inventor, invented many great inventions during his life.I. Warming up1.展示一些近代发明的图片与近代发明的
3、发明者，让学生们将图片与发明者相连。T: Do you know what these inventions are?51: Its a car.52: Its a telephone.53: Its a television.T: Do you know who these inventors are?51: Karl Benz52: Alexander Bell53: J. L. BairdLet Ss match the inventions and the inventors.III. Presentation通过图片引导学生们学习一般过去时态的被动语态结构。如：Karl Benz i
4、nvented the first car in 1885.The first car was invented (by Karl Benz) in 1885.IV. TalkingLook at the pictures in la. Discuss with your group, in what order do you think they were invented? Try to number them 1-4.1. Ss discuss with their partners and number the pictures.2. Talking about the inventi
5、ons:A: I think the TV was invented before the car.B: I dont agree with you. I think the TV was invented after the car.V. Listening (lb)T: Tell Ss look at the pictures and years on the left. Finish lb.1. Listen to the dialogue again and pay attention to Passive voice (past tense) in the listening tex
6、t.Unit 6 When was it invented ?Section lbAlice：Was your life very difficult whenyou were a kid?Grandma： OhF not really Why?Alice： Well, you didnt have modem inventions like a telephone, right?Grandma： Of course we did! How old do you think I am? The telephone was invented in 1876, You need to take a
7、 history class； Alice!Alice： Haha! How about cars? They werent invented yet, were they?Grandma： Yes, they were. Cars were invented in 1885. My family had a car.Alice： Well, did you have a TV?Grandma: No, we couldnt afibrd one. They were expensive in those days. The TV was invented around 1927,1 thin
8、k.Alice:Well, I know that you didnt havea computer because we learned in school that personal computers were invented in 1976.Grandma： Youre right. But I have one now!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 pictu
9、re in lb were invented.Then change roles and practice again.3. Let some students ask and answer in pairs. .A: When was the telephone invented?B: I think it was invented in 1876.VII. Listening(2a)Work on 2a:T: Tell Ss they will hear some interesting inventions.1. Look at the pictures in 2a. Discuss t
10、he 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.Work on 2b:1. Let Ss read the chart below. Explain some main sentences for the Ss.2. Play the recording then fill in the blanks.3. Play the recording a
11、gain and check the answers.4. Listen again and pay attention to the structure “be used for”.Section A, 2a, 2bAlex: Hi, Carol. Wbw, what are those?Carol： Hello, Alex. Oh, these are some of the interesting inventions that Im writing about for my English homework.Alex： I see - Whats that, then?get up a
12、t nightAlex：Oh, thats a cool idea! I always hit mytoe on something on the way to the bathroom at nightCarol： Next is a special ice-cream scoop. This is my favorite invention. It runs on electricity and becomes hot.Akx： I know what its for! It s used for serving really cold ice-cream.Carol： Yes, that
13、s right! The last invention Im going to write about is shoes with special heels. You can move the heels up and down.Alex： What are they used for?Carol： Well, you can change the style of your shoes. You can raise the heels if you are going to a party or lower them if you are just going out for shoppi
14、ng.Carol： They Ye shoes with lights. People use them for seeing in the dark when youTell 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.1. Let some Ss make conversations using the information in 2b.