1、Unit 6 When was it invented?Section A（1a-1c）Teaching Aims1.语言能力：了解电话、小汽车、电视、电脑是什么时候被发明的。2.思维品质：学会谈论物品是什么时候被发明的。3学习能力：用一般过去时的被动语态谈论发明的历史。Teaching Difficulties用一般过去时的被动语态谈论发明的历史。Teaching Aidsmultimedia courseware or other realia that the T needs for teachingTeaching ProceduresTipsStep 1 Warming up1. 四
2、大发明不是重点，它只为引出后面将会出现的四个现代发明。2.老师可用发明改变生活这条线串联中国古代的四大发明和课本中出现的四个现代发明，让学生体会到，无论是古代还是现代，我们的生活因为这些发明变得更加便利。Show Ss two pictures and asks: What are the people doing?(1. He is printing. 2. He is making paper.) Show Ss the pictures of the four great inventions in ancient China and ask if they know the Engli
3、sh names of these inventions. Then, ask them which invention was invented first and which was invented last. Show Ss a video about the four great inventions in ancient China. After watching the video, T can make a conclusion that inventions change peoples lives. T can ask Ss to think about how the f
4、our great inventions have changed peoples lives in ancient China. Step 2 Presentation & PracticePre-listening Ask Ss: Do you know any modern inventions? Then show them the pictures of computer, car, telephone and TV.Ask Ss to think and answer the questions: 1. Can you guess which one of them was inv
5、ented first? 2. Which one of them was invented last? 3. Was the TV invented before the car or after the car?(Tip: T can encourage Ss to use the passive voice when answering the questions.)1a Ask Ss to open their books, look at the four pictures in 1a and discuss which invention was invented first. T
6、hen, number the pictures from 1 to 4.(Tip: Ask Ss to use the sentence structures in the box on the left when discussing.)While-listening Show the picture of 1b to Ss. Ask them to think about what these people are talking about. Ask them to guess the year in which each invention was invented.1b Show
7、the video of 1b to Ss. Ask them to finish the task in 1b.(Answers: d 1876 a 1885 c 1927 b 1971) Extension: Show PPT P17 to Ss and ask them to match the inventors with their inventions.telephone: Alexander Bell, car: Karl Benz, TV: J.L.Baird, computer: John von Neumann Ask Ss to listen again and answ
8、er the questions:1. Did the older lady have a telephone? 2. Why didnt the older lady have a TV?3. Why didnt the older lady have a personal computer?4. Can you guess when the older lady was born?Post-listening1c Ask Ss to work in pairs and finish the task in 1c.(Tip: T can show more inventions to Ss.
9、 Tell Ss that more modern inventions can be talked about in 1c.) Show Ss pictures of different inventions (PPT P23) and ask them to think about how these inventions have changed peoples lives.(Tip: T can ask Ss to choose one or two inventions and have a group discussion.)Step 3 Language points learn
10、inginvent v. “发明”，指经过认识和实践创造出前所未有的事物。invention和inventor都是名词， 前者意为“发明”，后者意为“发明家”。invent, discover和find out的区别是：invent主要指发明世界上原本不存在的东西discover指发现一种世界上原本已经存在，后来才被人们认识到的东西find out指通过观察、调查而发现事实真相Step 4 Summary & Homework Summary Ask Ss to do the exercises from PPT P27-28.Homework: Preview the conversatio
11、n in 2d. Do the exercises in students book. Teaching ReflectionThis is the period for listening and speaking practice. Before listening, students talk about the four common things and get the words ready for listening. Then students listen and make conversations. The most important thing is to learn the passive voice in the past tense and teach students past participle forms.4
