Unit 9 When was it invented 全单元5课时学案

Unit 9 When was it invented?主备：课型：新授审核：九年级英语备课组第周年月日总第课时第一课时【教学目标】1.Knowledge Objects(1) Key Vocabulary invent(2) Target LanguageWhen was the telephone invented?I think it was invented in 1876.2.Ability 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.3.Moral ObjectsMany important inventions have changed the world a lot. Do you know the inventors of them? And when were they invented?二、教学重点1. Key Vocabulary invent2. Target LanguageTalk about the history of inventions.三、教学难点1. Train the students to talk about the history of inventions.2. Train the students to understand the target language in spoken conversation.四、教学方法1. Listening.2. Groupwork.3. Pairwork.五、教学用具1. A tape recorder.2. Some pictures or real objects of the inventions.【课前预习】基础题一、短语翻译1. be used for doing…_____________________2. the style of _____________________3. the most helpful_____________________4. battery-operated slippers_____________________5. shoes with adjustable heels_____________________二、请将下列发面归类computer, TV, car, camera, shoes with adjustable heel, umbrella, telephone, heated ice cream scoop, light bulb, hamburgers, radio, microwave oven, potato chips, pizza,tea, bicycle, alarm clock1.生活用品________________________________________2.办公用品________________________________________3.食物_____________________________________________【教学过程】Step 1 Revision1. Revise the language points in Unit 9.A sk some students to say something about Tina and the stories happened on April Fool’s Day. Encourage them to use the Past Perfect Tense.2. Check the homework by asking some students to share the sentences they made with the verbs with the class.Step 2 1aThis activity reviews vocabulary and introduces new vocabulary which can be used to talk about inventions.Read the inventions to the students.Call the students’ attention to the five pictures, Tell the students that all of these things were invented in the last 150 years.Point to each picture and let the students tell what it is.Write the names of the five inventions on the blackboard.computer, car, calculator, telephone, TV setHave several different students guess and write the dates on the board.Ask the class to repeat the questions and answers like this.T: When was the computer invented?Class repeat.SS: When was the computer invented?T: Good. Now Tom, what is your guess?S1: 1965.T: OK. Tom, repeat after me. The computer was invented in 1965.T: Class, please repeat.SS: The computer was invented in 1965.Repeat the process with several different inventions.Tell the children that they will find out the real dates after they complete the lesson.After that, ask the students the questions below:Questions:1. Which one do you think is the oldest?2. Which one is the newest?3. Which one do you think is the oldest or the first invention?4. Which one is the newest or last invention?Ask different students to answer the questions.Have the students look at the example conversation in the box. Ask two students to read this conversation to the class.A: I think the telephone was invented before the car.B: Well, I think the telephone was invented after the car.Read the instructions again to the students. Remind them to remember the inventions from first tolast.Then have the students talk about the five inventions in groups of four, using the sample conversation as a model.Ask several groups to tell the class their answers. The rest of the class listen to them and show they have different answers by raising their hands.In the next activity you will find out the real dates.Step 3 1bThis activity gives students practice in understanding the target language in spoken conversation. Get the whole class to read the instruction together.Call the students’ attention to the five inventions in the picture. Ask five students to say the names of them.Then ask them to see the five dates with a blank line in front of each.We’ll listen to a girl a nd a woman talking about the five inventions. They will talk about when they were invented. Listen carefully and match the inventions and the dates. Write the correct letter in front of each date as the sample given. Ask them to have a look at the sample answer. Tell them the answer in front of 1876 is d. That means that the telephone, which is letter d, was invented in 1876.Play the recording the first time. The students only listen and try to catch the main idea.Play the recording a second time. Let the students match the inventions and the dates.Check the answers by asking several to say the answers to the class.If some of the answers are hard to get for the children, tell them not to worry and they will make it next.Then play the recording again. Pause after each sentence and let the students repeat.For some difficult sentences, get the students to repeat several times. Be sure that they make everything clear.Answersd 1876 a 1885e 1927 c1971 b 1976Step 4 1cThis activity provides guided oral practice using the target language.Read the instructions and point to the list of dates in Activity 1b.You will be talking about the dates things were invented with a partner.Call the students’ attention to the example in the box. Ask a pair of the studen ts to read this conversation to the class.SA: When was the telephone invented?SB: I think it was invented in 1876.Write the conversation on the blackboard.Then get the students to practice in pairs, using the information in Activity 1b. Tell them to do it like this:Student A, covers the dates. Students B, asks Student A when the things in the picture above were invented. Then change roles and practice again.Ask several pairs to share their conversations with the class.Step 5 Listening and numbering (2a)Next you are going to listen to a tapescript and number the inventions in the order that you hear them. The inventions are heard in the following order.battery-operated slippers→heated ice cream scoop→shoes with adjustable heelsStep 6 Listening and matching (2b)You shall listen to the recording again and match the items in the chart on page 69.What is it/ are they used for? Invention Who was it/ were they inventedby?Shoes with adjustableChelsea Lanmon Scooping really cold ice cream heelsBattery-operated sneakers Jayce Coziar and Jamie Ellsworth Seeing in the darkHeated ice cream scoop Julie Thompson Changingthe style of the shoes Step 7 Doing pairwork (2c)Role play the conversations using the information in the chart in the middle of page 69. Pay attention to the formation of passive voice.A: What are the shoes with adjustable heels used for?B: They are used for changing the style of the shoes.A: What are the battery-operated sneakers used for?B: They are used for seeing in the dark.A: What is the heated ice cream scoop used for?B: It is used for scooping really cold ice cream.Step 8 SummaryIn this class, we’ve learned to talk about the history of inventions with passive voice. We’ve also done some listening practice in understanding the target language in spoken conversation. And we’ve done much oral practice, using the target language.Step 9 Homework1. Write out two conversations in Activity 1a. (A B C 层)2. Write out two conversations in Activity 1c. ( B C 层)Bb DesignUnit 9 When was it invented? Section A1. The names of the five inventions:computer, car, calculator, telephone, TV set2. Target language:A: When was the telephone invented?B: I think it was invented in 1876.【课堂练习】三、单项选择( )1.James didn’t come _____ the bell rang.A. untilB. atC. whenD. before( )2.This kind of TV set ________Shenzhen.A. are made inB. are made ofC. is made inD. is made of( )3. Take the plates away to the kitchen and ________ some clean ones.A. takeB. bringC. fetchD. buy( )4.---They decided that all the wood would be used _____ building.---Of course, the building needs it.A. forB. buyC. withD. to( )5. The bridge ______ by the farmers themselves in 1982.A. builtB. was builtC. buildD. was build( )6. Keys _________ used for ________ the doors.A. is, openingB. is, openedC. are, openingD. are, opened( )7. It’s used for ________ clearly in the park.A. seeingB. seeC. lookingD. look( )8. When ________ the car________?A. did, inventB. was, inventedC. does, inventD. is, invented( )9. It was invented __________ Edison.A. byB. inC. forD. to( )10.---________ was the car invented?--- It was invented in 1983.A. WhenB. WhyC. HowD. Who提高题句型转换1.Cai Lun invented paper.(改为被动语态)__________________________________________________2. The telephone was invented before the car.(改为同义句)The car was invented __________ __________ __________.3. They’re used for seeing in the dark.(改为否定句)They _______ _________ for seeing in the dark.4. Chinese people invented the abacus in the sixth century.(改为被动语态)The abacus ________ __________ in the sixth century ________ Chinese people.5. The water is used for watering the flowers.(对划线部分提问)___________ ___________the water used for?6. The students clean the room every day.(改为被动语态)The room __________ ________ by the students every day.7. The computer was bought by my father last month.(改为主动语态)My father _____________ the computer last month.【课后练习】见作业本U9第一课时【教学后记】Unit 9 When was it invented?主备：课型：新授审核：九年级英语备课组第周年月日总第课时第二课时【教学目标】1.Knowledge Objects(1) Key Vocabulary(2) Target LanguageWhat do you think is the most …invention?I think the most …invention is …Why is that?2.Ability 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’ speaking skills with the target l anguage.3.Moral ObjectsMany important inventions have changed the world a lot.二、教学重点1. Key Vocabulary2. Target LanguageTalk about the inventions around our life.三、教学难点1. Train the students to talk about the importance of inventions.2. Train the students to understand the target language in spoken conversation.四、教学方法1. Pairwork.2. Groupwork.五、教学用具1. A tape recorder.2. Some pictures or real objects of the inventions.【课前预习】第二课时Section A (3a-4)一、短语翻译1.闹钟_____________________2.灯泡_____________________3.微波炉_____________________4.the most helpful invention _____________________5.all day _____________________二、根据所给汉语完成句子1. I think _________ _________ _________ _________(最有帮助的发明) is the light bulb.2. That’s not going to _________ _________ _________ _________ _________(帮助你离开这个岛屿)3. I think it _________ _________ _________(将会是更好的) to have a mobile to connect with outside.4. It gives people more time _________ _________ _________ _________(去工作和玩耍) every day.5. _________ do you think the telephone _________ _________(什么时候发明的)6. What _________ _________ _________（你认为）is the most helpful invention?7. _________ _________(电灯泡) were invented by Edison.8. Knives _________ _________ _________ (被用于) cutting things.9. Telephone _________ _________(被发明) in 1876.10. I took your bag instead of mine_________ _________(错误地).【教学过程】Step 1 Doing pairwork (3a)There are two kinds of inventions. One is helpful invention, and the other is annoying invention. Now in pairs make a list of five helpful inventions and five annoying inventions.Helpful inventions Annoying inventionsExample: telephone Example: alarm clock1. plane 1. atomic bomb2. computer 2. missile3. bike 3. rifle4. car 4. chemical weapon5. train 5. alarm clockStep 2 Doing pairwork (3b)In pairs discuss your opinions in 3a with your partner.A: What do you think is the most helpful invention?B: I think the most helpful invention is the light bulb.A: Why is that?B: Well, it gives people more time to work and play every day.A: What do you think is the most annoying invention?B: I think the most helpful invention is the atomic bomb.A: Why is that?B: Well, it gives people more power to kill others.A: What do you think is the less helpful invention?B: I think the less helpful invention is the car.A: Why is that?B: Well, it makes it possible for people to move to distant places faster.Step 3 Doing groupwork (4)Imagine you are left alone on a small island in the sea. If you are allowed to take five inventions along with you, what would you take?I like to take the followings with me.knife flashlight handphone telescope gunStep 4 Homework:1.Copy new words five times on page 70(A B C 层)2.Copy dialogue 3b and recite it. ( B C 层)3.Finish Homework. (A B C 层)Bb DesignUnit 9 When was it invented? Section AWhat do you think is the most …invention?I think the most …invention is …Why is that?…【课堂练习】三、单项选择( )1.---Sorry, Mary. I took your notebook_______.---It doesn’t matter.A. by mistakeB. by accidentC. by handD. in hand( )2.---Leo, what do you think is the most helpful _______ in modern times?---I think it is the computer.A. inventB. inventionC. inventorD. inventive( )3. What will happen?A. do you thinkB. are you thinkingC. you thinkD. does you think ( )4.Who were the shoes with adjustable heels invented__________ ?.A. withB. ofC. forD. by( )5. Chinese brush—pens were used to __________ in the old days.---It doesn’t matter.A. writingB. writeC. to writeD. wrote( )6. What ___________ is the most helpful invention?A. do thinkB. I thinkC. you do thinkD. do you think( )7. Anna is ______ to choose her own clothes.A. allowedB. allowsC. allowingD. allow( )8.___________ is used for seeing in the dark.A. The shoes with adjustable heels.B. The battery-operated slippers.C. The heated ice cream scoopD. The flying disk( )9.---I can’t wake up in the morning. what shall I do?---Buy ___________, it may help.A. a light bulbB. a microwave ovenC. an alarm clockD. a binoculars( )10.---Your city looks beautiful!---Yes, lots of trees and grass ___________ last year.A. are plantedB. have plantedC. were plantingD. were planted【课后练习】见作业本U9 第二课时【教学后记】Unit 9 When was it invented?主备：课型：新授审核：九年级英语备课组第周年月日总第课时第三课时【教学目标】1．Knowledge Objects(1)Key Vocabularysweet, salty, crispy, sour, potato, chip, mistake, by mistake, thin, in the end, chef, sprinkle (2)Target LanguageDid you know potato chips were invented by mistake?No, I didn’t know that. Who invented them?2.Ability Objects(1)Train the. students’ reading, writing, speaking and listening skills with the Targ et language.(2)Train the students to use the new vocabulary.3.Moral ObjectsYou enjoy eating the potato chips?Have you ever thought of the history of the chips?二、教学重点1.Train the students’ reading, writing, speaking and listening skills with the target language.2.Teach the students to use the new vocabulary correctly.三、教学难点Do the listening practice.四、教学方法1.Listening2.Pairwork五、教学用具1. A tape recorder2. Some bags of potato chips.【课前预习】第三课时Section B 1a-2c一、短语翻译1.错误地__________________2.把……撒在……上__________________3.最后__________________4.make…happy__________________5.the history of potato chips__________________二、单项选择( )1. He wasn’t ___________ to lift the box.A. too strongB. enough strongC. strong enoughD. so strong( )2.He likes __________ chips but doesn’t like ice cream.A. potatoesB. potato’sC. potatoD. the potato( )3.They sprinkled some sugar___________ the cake.A. inB. atC. withD. on( )4.He tried his best to do everything to make his young sister______ again.A. laughingB. to laughC. laughD. laughed ( )5.She tried many times to pass the exam, and _______ the end she succeeded.A. byB. atC. inD. on( )6.The chef __________ some pepper on the chicken just now.A. sprinkledB. threwC. madeD. cooked【教学过程】Step 1 Revision1.Check the homework by asking some children to read their conversations to the class.2.Ask some questions about the inventions. For example, what do you think is the most helpful invention?3.Dictate the words below:bulb light, microwave oven, island.Step 2 1aThis activity introduces new vocabulary.First, show the new vocabulary on the screen by a projector.Point to each word on the screen and teach the students to read one by one. Do it several times until the children can read the new words fluently.Read the instructions to the class.Point out the four adjectives on the left.Have them read the four words together.Then ask some different students to read them. Then ask the students to try to tell the meaning of each word in English in their own words, or give some examples of foods that show what each word means.For example, help the students explain it like this:Sweet is used for describing something that tastes like sugar or honey. It’s the opposite word of sour.After that, ask the Students to tell the names of the foods in the pictures potato chips, lemon, ice cream, tea.Please choose the words in the box to describe how the food in the pictures tastes.Write them under the correct pictures.Note that some pictures have more than one word.Tell them to see the example answer before writing.After a while, check the answers by asking several students to read their answers to the class. Answers:potato chips: crispy, saltylemon: sourice cream: sweettea: sweetOptional activityBring some foods that taste sweet, crispy, salty and sour to the class. Have some students, one at a time, taste little pieces of each food. Then report how the foods taste to the class with the new adjectives, sweet, crispy, salty and sour. Students may one more than one word to describe some foods.Step 3 1bThis activity provides practice using the new vocabulary and writing familiar words.Ask the students to read the instructions together.Point out the four taste words. Then point to the sample answer given.Please write the name of a different food after each word.You can write the name of any food you know in the blank. Can you think of other sweet food now? (apple, orange, etc.)Ask the students to complete the activity on their own.After they all finish writing, ask some students to read their answers to the class.Check the answers with the whole class.Answers:Answers will vary but may include:sweet: apple, orange juice, soda, cake, honeycrispy: french fries, salad, lettucesalty: french fries, olives, pepperoni, pizza, popcornsour: pickle, grapefruitStep 4 2aThis activity gives students practice understanding the target language in spoken conversation. Let the students read the instructions together. Be sure that they all know what to do.Call the students’ attention to the six sentences in the box. Ask six different students to read them and do some explanation in their own words on each sentence.After that, get the students to guess what they will hear about.Maybe someone can answer like this, may listen to something about the potato chips. Show some bags of potato chips them or even let some children taste the chips.Yes. You’ll hear a story about the invention of the potato chips. Please look at the first sentence now. It is a sample answer given. The statement is true so the letter T is circled.Then play the recording first. Students only listen.Play the recording again. Ask the children to listen and circle T for true or F for false.Check the answers with the whole class.Answers1. T2. F3. T4. F5. F6. TStep 4 2bThis activity gives students practice in understanding and writing the target language.Get the students to read the instructions together.Point to the blanks in the sentences in the story and tell them to complete the sentences while they are listening.You’ll listen to the same recording again.Before I play the recording, please try to give the answers by memory, or just by guessing.It doesn’t matter whether your answers are right or wrong.After a while, have the students get ready to listen.Play the recording again. Ask the students to fill in the blanks with the words they hear.Get several students to share their answers with the class. Correct the answers with the whole class.Answers1. Did you know2. were invented3. 18534. were crispy5. really saltyStep 5 2cThis activity provides guided oral practice using the target language.Play the recording of the history of chips again. Pause for the students to repeat after it. Get the students to read after the tape at least twice. Tell them to try their best to copy the pronunciation of the recording.Read the instructions to the class. Tell them that they will role-play the conversation, using the information from the activities in Activity 2a and Activity 2b.Ask a pair of the students to read the model conversation in the box.SA: Did you know potato chips were invented by mistake?SB: Wow, I didn’t know that. Who invented themSA: They were invented by a chef called George Crum.Write the conversation on the black board.Then ask another pair to make a conversation or continue the model conversation.They may say like this:A: Did you know potato chips were invented by mistake?B: Wow, I didn’t know that. Who invented them?A: They were invented by a chef called George Crum.B: Why was it an accident? Can you tell me the story?A: Well , one day a customer in the restaurant where George worked sent back his plate of fried potatoes because he said they were cut too thick.B: What happened next?A: So George was unhappy, he cut the potatoes really thin, and he cooked them for a long time until they were crispy.He sprinkled lots of salt on them so they were really salty. He thought the customers would hate them.B: Go ahead, please.A: And the customer loved them and asked for more.B: What a cool story!Step 6 SummaryIn this class, we’ve learned to describe how food tastes with some new adjectives. And we’ve done much listening practice on the target language. At last, we did some oral practice by making our own conversations.Step 7 Homework1.Try to remember the new words learned today. (A B C 层)2.Write out the conversation that you made by yourselves in Activity 2c. (B C 层)Bb DesignUnit 9 When was it invented? Section BA: Did you know potato chips were invented by mistake?B: Wow, I didn’t know that. Who invented them?A: They were invented by a chef called George Crum.【课堂练习】三、选择方框内的句子补全对话A. Yes, it is.B. No, it isn’t.C. Yes, it’s happening to many people.D. Then you think of television as a great time-waster.E. It depends on how people choose what they want to see.F. In that case it seems as if you’re against TV.G. Then you think that people can live a perfect happy life if they haven’t got a television.A: Television is a great invention, isn’t it?B: 1._________________________________A: But I read somewhere that in a way television has killed people’s own creativity.B: 2. _________________________________. It makes you sit for hours after hours and stop you from doing things and thinking things.A: 3. _________________________________B: 4._________________________________. Television itself is very good.A: 5. _________________________________B: Well…yes, it seems to me that the important thing in life is to be active, but television stops this.四、根据所给汉语完成句子。