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Unit 9 When was it invented?授课教师：杨惠丹 授课班级：初一（7） 授课时间：2007.12.11Language goals:In this unit students learn to talk about the history of inventions.New languages:When was the car invented?It was invented in 1885.What are they used for?They are used for seeing in the darks.Who were they invented by?It was invented by Julie Thompson. Difficult points:1. In this unit, the structure: Passive voice (questions and statements) 2. How to improve the students listening, reading and writing ability.Teaching aids:computer, video, recorderTeaching periods:Period 1: Section A 1a / 1b / 1c / 2a / 2b / 2cPeriod 2: Grammar focus / Section A 3a / 3b / 4Period 3: Section B 1a / 1b / 2a / 2b / 2c / Self check 1Period 4: Section B 3a / 3b / 3c / 4 / Self check 2Teaching aims:1. Teach vocabulary words.2. Target languages:When was the car invented?It was invented in 1885.What are they used for?They are used for seeing in the darks.Who were they invented by?It was invented by Julie Thompson.3. Listen, talk and read about the inventions.4. Train the speaking and listening abilities.Teaching procedures: Step 1. Lead-inAsk students “Who has a mobile phone / bike? Does your family has a car / TV / computer?” Watch the video and tell students these things were called inventions when they were first made. They are very useful inventions. They can make our life easier. Do you know any other inventions? List them on the paper. Step 2. PresentationAsk “When was the telephone invented?” “The telephone was invented in1876.” Get the students repeat the sentences several times. While students are repeating the sentences, the teacher writes down “When was / were invented? It / They was / were invented in”Watch the video. Look at some pictures and practice the similar dialogues.Explain “be +Past Participle” express Passive voice (Show a slide)e.g. English is spoken around the world.A bridge was built last year. Step 3. Section A 1a GroupworkShow a slide. 1. Point to the pictures and ask students to say what they area computer, a car, a telephone, a TV and a calculator.2. Ask “Which one is the newest? Which one do you think is the oldest?”3. Discuss in groups and Number them 1-5.4. Check the answers. Step 4. Section A 1bThis activity gives students practice in understanding the target language in spoken conversation. Show a slide.1. Look at the pictures and the dates. You will hear a conversation between a girl and a woman.2. Listen carefully and match the inventions and the dates.3. Listen again until students can catch it. 4. Check the answers.Step 5. Section A 1c Pair workThis activity provides guided oral practice using the target language.1. Watch the video and call attention to the conversation. Ask two students to read it.2. Work in pairs. Look at 1b. Student A cover the dates. Student B, ask student A when the things in the picture were invented. Then change roles and practice again. 3. Ask students to make similar dialogues using the things around them.Step 6. Section A 2a / 2b1. Show a slide with some inventions on it. Teach the vocabulary words. Read them again and again and try to grasp them.2. Show another slide. Look at the picture. Here are the three inventions. You will hear a conversation between a girl and a boy. Listen and number the inventions in the order that you hear them.3. Listen carefully again and check up their answers.4. Ask a student say out his / her answer.5. The teacher shows the correct answers.6. Then show another slide. Look at the chart. It shows the people who invented these things and what they are used for. Listen to the recording again and match the items in column A, B and C.7. Play the tape many times until the students catch it. Then check the answers.8. Look at the tapescript and read the conversation aloud in pairs again and again.9. Explain the language points.e.g. Who was it invented?It was invented byWhat is it used for?It is used for doing Step 7. Section A 2c Pair workThis activity provides guided oral practice using the target language.1. Call attention to the sample conversation and ask two students to read it aloud. 2. Role play the conversations using the information in the chart in 2b. Watch the video and practice like this: What is it?It is a telephone.When was it invented?It was invented in 1876.Who was it invented by?It was invented by Alexander Bill.What is it used for?It is used for talking to people in other towns.Step 8. Conclusion1. Learn and master the vocabulary words.2. Master the target languages.When was the car invented?It was invented in 1885.What are they used for?They are used for seeing in the darks.Who were they invented by?It was invented by Julie Thompson.Homework:Find out an invention that you think is the most important. Write a short passage about it including the date, the people who invented it and what it is used for.3
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