新目标九年级英语第九单元第四课时教学设计

Unit 9 When was it invented?Period 4 Integrating skillsLanguage goals 语言目标1. Words & expressions 生词和短语electric, light bulb, microwave oven, island, mistake, by mistake, thin, in the end, sprinkle， by accident, beverage, thousand, according to, ancient, legend, emperor, boil, fire, leaf, leaves, nearby, fall into, remain, notice, produce, pleasant, smell, taste, in this way, metal, pie, flying disk, bakery, Bridgeport, Connecticut, throw, abacus, century, telescope, camera2. Key sentences重点句子 (P72)When was it invented?Who was it invented by?How was it invented? Ability goals 能力目标Enable the students to learn how potato chips and tea were invented.Strategy goals 策略目标Listen for key information.Emotion & attitude goals 情感和态度目标Tell green food from junk food.Culture awareness goals 文化意识目标Learn about the history of potato chips and tea, which represent two different cultures. Teaching important points教学重点Reading and understanding of the passage “Who invented tea?”Teaching procedures and ways 教学过程与方式Step I Warming UpT: I know that young people like eating potato chips very much. Do you know who invented potato chips? And how was it invented? Well, next well listen to some material about potato chips. Step II Listening (2a, 2b: P71)Ask the students to listen to a passage about potato chips and deal with some tasks.T: First, listen and judge whether the statements in 2a are true or false. Do you know what you should do first?S: Yes. Read the instructions and sentences. T: Before listening, grasp the main idea of listening material according to the key words. Which are the key words in these sentences?S: By mistake, 1863, not thin enough, not salty enough, happy, in the end .T: Good. The recording will be played twice. For the first time, listen carefully and pay attention to the key words. Play the tape for the first time. T: For the second time, listen and finish the task of 2a. Play the tape for a third time and let the students complete the sentences in 2b. Then check the answers.Step III Pairwork (2c: P71)Ask the students to role play the conversation about the invention of the potato chips. T: After listening to the tape, can you tell me when and how potato chips were invented? Who invented them? Now read the instructions of 2c. Discuss with your partners and make a role play according to the sample dialogue.After the students finish discussion, ask some pairs to present their dialogues.A sample dialogue:S1: Did you know that potato chips were invented by mistake?S2: Wow, I didnt know that. Who invented them?S1: They were invented by a chef called George Crum. S2: When were they invented?S1: They were invented in 1853.S2: Why do you say they were invented by mistake?S1: 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. George was in a bad mood, so he cut the potatoes really thin, and he cooked them for a long time until they were crispy. And he sprinkled lots of salt on them so they were really salty. He thought the customer would hate them. S2: And? S1: And of course the customer loved them and asked for more. S2: It is very interesting.Step IV Reading (3a: P72)Ask the students to read the passage about tea and then deal with the questions after it.T: As we all know, tea was first invented in China and Chinese tea is the most popular all around the world. Do you like drinking tea? Why?S1: I like tea very much. Because it makes me feel cool.S2: I like it because it can make me stay awake and I wont feel sleepy in class.S4: I like it because its good for our health.T: Tea is good for our health, especially green tea. Drinking green tea is helpful in a few medical conditions. Green tea can help prevent teeth decaying. Green tea can even help dieters. Ask the students to read the passage about the tea and answer the questions.T: Next, well read a passage about the tea. You will know more about it. Please read the passage on P72 carefully and then find the answers to the following questions. 5 minutes for you to read. Five minutes later. T: What is this article about?S1: I think it is about the invention of tea.T: Was it invented on purpose or by accident?S2: By accident. The first sentence tells us that.T: When was it invented?S3: Over 3,000 years before 1610.T: That was quite a long time ago. Who invented it then?S4: The emperor Shen Nong.T: Who can tell us how it was invented?S5: According to an ancient legend, once when Shen Nong was boiling drinking water over an open fire, some leaves from a nearby bush fell into the water and remained there for some time. He noticed that the leaves in the water produced a pleasant smell. Later he tasted the water and found it quite delicious. Thats how he discovered tea.Step V Writing (3b: P72)Ask the students to describe the picture in the middle of P72.T: Look at the picture in the middle of P72. What can you see in it?S1: I can see a dog with a flying disk in its mouth.T: You are right. It is a flying disk in the dogs mouth. Look, here is a real flying disk. Do you like playing it? Let me show you how to play.Show the students how to play a flying disk.T: By the way, do you know the history of the flying disk? How was it invented? Look at the left column of 3b. You may get some information from the notes.T: What can you learn from the notes?S2: I know the flying disk was invented by college students.S3: I know the flying disk was made of metal pie plate.S4: I know the flying disk was invented in 1950s.S5: I know the story happened in bakery Bridgeport, Connecticut. Ask the students to write an article using the notes.T: Very go