人教版九年级Unit 6 When was it invented -Section B 1a—1e-ppt课件-(含教案)-市级公开课-(编号：d1dc0).zip

人教2011课标版九年级全一册（2014年） Unit6 When was it invented？ Section B(1a-1e) Revision 1.Who was the telephone invented by? 2.When was the telephone invented? 3.What is it used for? Alexander Graham Bell. In 1876. It is used for talking with each other. 1.What is it? 2.When was tea invented? 3.Who was it invented by? 4.How was it invented? 5.When was tea brought to Korea? It is tea. About 5000 years ago. Shen Nong. By accident. During the 6th and 7th centuries. What are they called in English? How do they taste? Potato chips Salty and crispy （咸的)(脆的） What are they called in English? How do they taste? Lemons Sour （酸的） Where are they? What are they doing? In a supermarket. They are shopping. They are customers. Customer （顾客） What is it called in English? What s its taste? Ice cream Sweet （甜的） What are they? How do they taste? Salted eggs Salty （咸的） By mistake （错误地 无意中） 1.I locked him at home by mistake. 2.Yesterday I couldnt find my English book .My deskmate Tom took it home.He thought it was his. He took it by mistake (他无意中拿回家的) (我误把他锁在屋里面。) What kind of food can you see in the pictures? How do they taste? potato chipslemons ice cream salted eggs soursweetsalty salty 1b Can you think of food that tastes sweet/crispy? What food tastes salty/sour? Write the name of a different food after each word. sweet crispy watermelons apples lettuce potato chips salty sour pizza popcorn strawberries grapes were invented 1853 thin crispy really salty Answer the following questions: 1.How were potato chips invented? 2.When were potato chips invented? 3.Who were they invented by? 4.What was his job? By mistake. In 1853. George Crum. A cook. He cut the potatoes really,really thin ,put lots of salt on them and cooked them for a long time until they were crispy. 6.What did the cook do with the potatoes then? 5.Why was it a mistake? Because the customer said the potatoes were cut too thick and sent them back.The customer got angry .He cut the potatoes really thin ,put lots of salt on them and cooked them for a long time.But the customer liked them very much. lets do it Tell the story with the following phrases: The history of potato chips 1.by mistake 2.by a cook called George Crum 3.back in 1853 4.ordered fried potatoes, cut too thick, sent back 5.angry, cut really thin ,cooked a long time, a lot of salt 6.loved them , asked for more 7.loved by everyone 8.What a cool story! Homework 1.Copy the key words and phrases. 2.Revise the history of potato chips by heart. 3.Preview the next period.Try to find the story of basketball by reading the passage on P46. .Teaching Aims 1.Knowledge and skills: (1).Master the key words:crispy, salty, sour , by mistake ,customer. (2).To know the history of potato chips. (3). To improve students listening and communicative skills. 2.Procedure and method: (1).Learn some adjectives to describe the taste of food. (2).To train students listening skill by talking about the history of potato chips. 3.Emotion, attitude and value: Lead students to know the importance of inventions in daily life. . Important points: 1. Master the new words and target language. 2. Master the use of passive voice. 3. Develop students listening and speaking skills. . Difficult point. Develop students listening and speaking skills by talking about the history of food. Teaching procedure: StepStep WarmWarm upup 1. Greeting Greet students as usual. 2. Revision Ask students some questions about the inventions we learned last class. Show some questions about the telephone and tea on the screen. Ask some students to give answers. StepStep .Presentation.Presentation 1. Show the pictures of some fruit and vegetables.Lead students to think about their names and tastes. T：What are they called? How do they taste？ Teach the new words salty,crispy,sour,sweet. Teach other words like customer, by mistake. 2. Teach activities 1a and 1b. These two parts are designed to provide students with vocabulary practice. (1).Ask students to read the new words and phrases. (2).Show students the pictures of 1a on the screen . Call students attention to the picture and read the instructions to the class. Ask: What kind of food can you see? How do they taste? Ask students to think about them. Then ask students to choose the words from the box to describe them. Ask some students to give the answers. Finally, write down the words below each picture. (3).Call students attention to the box in 1b and point at the example ,then read the instructions to the class. T:Can you think of other food that tastes sweet/crispy? What food tastes salty/sour? Ask students to fill in the blanks with proper words. (4).Have students finished the task as required. StepStep PracticePractice Teach activities 1c and 1d. These two parts are designed to train students listening and writing skills by learning the history of potato chips. 1. First show the six sentences on the screen. Then ask Students to read them one by one and try to guess the meaning of each sentence. Next, play the tape for the students to listen and finish the task. Finally check the answers together, 2. Call the students attention to the history of potato chips and point to the blanks in the sentences and guess the words they will write. Play the tape again, students write down the key words in the blanks while they are listening. Then ask some students to give the answers. Check the answers together with the students. 3. Review the story of potato chips. Show some questions about the potato chips on the screen,ask students to answer them. Then check them with the whole class. StepStep ConsolidationConsolidation 1. Teach activity 1e This part is designed to train students listening and speaking skills by speaking practice. (1).Invite a pair of students to demonstrate the sample conversation,and read the instruction to the class. (2).Have students work in pairs to role-play the conversation as required. Give them enough time to do this work. As they work,move around the room checking the progress and offering language assistance as needed. Finally invite several pairs to act out for the whole class. 2. Writing practice Show some words and phrases about the fact of potato chips on the screen ,ask students to write a short passage about the invention of potato chips. Give them some time to prepare.Move around the room offering help when needed. Ask some students to show their writing. StepStep SummarySummary In this class,we have learned how to use adjectives to describe foods.We have also done much listening,speaking, writing and speaking practice by learning the history of some inventions using the target language. StepStep HomeworkHomework 1. Copy the key words and phrases. 2. Revise the history of potato chips by heart. 3. Preview the next period.Try to find the history of basketball by reading the passage on P46. DesignDesign ofof thethe blackboardblackboard Unit 6.When was it invented? Section B (1a-1e) Salty crispy sour customer Sweet by mistake the history of potato chips