英语人教版九年级全册Unit 6 1a-1c.doc

九年级英语Unit 9 When was it invented教案第一课时Section A （1a-1c） Teaching Aims and Demands2Ability Objects(1) Teach the students to use the new words.(2) Train the students to talk about the history of inventions.(3) Train the students listening and speaking skills with the target language.3Moral ObjectsMany important inventions have changed the world a lot. Do you know the inventors of them? And when were they invented?Teaching Difficult Points1Train the students to talk about the history of inventions.2Train the students to understand the target language in spoken conversation.Emotion & attitude goals Enable the students to be aware of different inventions around them.Teaching Methods1Listening. 2practice. 3Pairwork. 4.GroupworkTeaching AidsMultimedia.Teaching stepsStep 1. Lead-inT: Good morning / afternoon, boys and girls. This week we will begin a new unit about inventions. Talk about some inventions in China.Let the students look the pictures and know about four ancient inventions in Cpass, gun poweder, moveable type printing, paper.Then say you can see inventions all around us, from TV to car, from food to clothing. We should say nobody can live without them. we live in a world of inventions. These inventions make our life easier and more comfortable. In this unit, we will learn some inventions and their history. First, lets get to know some new words.Step 2.Presentation Present two pictures of Thomas Edison and a light bulb. T: Look at the picture on the Screen. Whats that in English?Ss: .T: (help)Its a light bulb. (Students read “light bulb” after the teacher repeatedly.)T: Who invented the light bulb? Edison invented the light bulb in 1879.Yes, The light bulb was invented by Edison Teacher write the three sentences on the Bb and explain the Passive Voice and the Active Voice. Ss read them after the teacher repeatedly.Step 3. PracticeAsk a few pairs to say the dialogues like below:A: Who were the light bulb invented by?B: They were invented by EdisonA: When was the telephone invented?B: It was invented in 1879.Step 4.Groupwork( 1a )T: We know the light bulb was invented in 1879 .Look at the inventions in the book to ask students to guess when each one was invented: the personal computer, . the car, the calculator, the telephone and the TV. Have several different students guess and write the date on the blackboard, and ask them to number the pictures in the order what they think.(According to the time when they were invented?v Lets guess who invented it 。Ss work in pairs and talk about their ideas like this:T: When was the car invented? S1: I think it was invented in 1885 S2: I think it was invented before the computer. S3: I think it was invented after the TV. Step 5.Listening( 1b) Ss listen to the tape twice and match the inventions with the dates. v.Check the answers.Step 6.GuessLets guess who invented itcomputer Steve Jobs and Steve Wozniak Telephone Edisonlight bulb Bellcar Karl Benz Step 6.Asking A:Who was the telephone /car.invented by?B:It was invented by Benz/Step 7 .Pairwork ( 1c). Ask students to use the information in 2b to make dialogue, the students practice the dialogues in pairs like below:A: When was the telephone invented?B: I think it was invented in 1876.v. Ask some groups to act the dialogues Step8.SummaryPassive Voice1.一般过去时的被动语态：结构：am/is/are动词过去分词2.一般过去时的被动语态：结构：was/were动词过去分词3.含有情态动词的被动语态：结构：情态动词be+动词过去分词Step9.Emotion & attitude goals Enable the students to be aware of different inventions around them.Step10.Aim exercises1.Thomas Edison was a great American (invent). He had more than one thousand (invent) in his life.2.Personal computers about 30 years ago. A. invented B. was invented C. were invented D. inventing3.When was umbrella ? A./;invented B. a;discovered C. an; discovered D. the; invented4The bridge over the river three years ago Ais finished Bwas finished Cwas finish Dhas finished5. A present me by my friend on my birthday. Ais giving Bwas given to Cis given for Dwill give to 6The old men and the child in our country Amust take good care Bmust be taken good care Cmust take good care Of D.must be taken good care of7A talk on English history in our school hall last week Ais given Bwas given Chas given Dwill give8.The telephone Bell many years ago. A.invented B.was invented C.was invented by D.invented by9His father bought a computer for him last month(