英语教案Unit9When was it invented

1、Unit9 When was it invented? (Section B 1-3b)Teaching aims: Using “The Passive Voice” to talk about the inventions, learn the TASTES and the history of POTATO CHIPS, do the reading task about the invention of TEA.Important points: The Passive VoiceDifficult points: Distinguish the Passive Voice and t

2、he Active VoiceStep I Lead-inClass, we talked about some very useful or annoying inventions yesterday, do you remember them? (Light bulb, alarm clock, microwave oven, TV, car, computer, telephone, cacluator) Today,we are going to talk about the tastes of food and drink. Please look at these pictures

3、, what are they? How are they? Step II PresentatonJust now, we talked aobut some tastes, now Ill ask you if we want to make potato chips, what are needed? Yeah, we need potatoes, salt and oil.Steps of making potato chips: First, the potatoes are cut into slices;Next, the slices are fried in the oil;

4、Then, some pepper and salt are sprinkled on the slices;2 / 7Finally, you can eat them.Step III Listening taskDo you know who potato chips were invented by? When were they invented? Lets try to find the answers in the listening activity 2a and 2b.Your tasks are: 1. Only listen 2. Listen and judge the

5、 sentences in 2a. 3. Listen and complete 2b, 4. Make conversations as 2b in pairs.Passage: -Did you know potato chips were invented by mistake? -Wow, I didnt know that, who invented them? -They were invented by a chef called George Crum. -When were they invented? -They were invented in 1853.Step IV

6、Reading taskClass, we have tasted so delicious potato chips just now, maybe you are thirsty now. 1. What will you do if you are really thirsty? Youd like to drink these beverages: milk, orange juice, tea, water. 2. Do you know whats the most traditoinal beverage in China? (tea) 3. And what do you th

7、ink of tea? (Smells pleasant, tastes bitter and sweet.) But do you know who invented tea? Now please read 3a and answer the following 5 questions: 1. What is this article about? (The invention of tea) 2. Was if invented on purpose of by accident? (By accident) 3. When was it invented? (Over 3,000 ye

8、ars before 1610) 4. Who invented it? (Shen Nong) 5. How was it invented? ( It was invented by accident)Step V DrillsNow please translate these Chinese into Englsh.1、偶然 2、直到才 3、根据 4、中国古代神话 5、令人愉悦的气味 6、用这种方法 7、超过三千年 8、决定做某事 9、落入，陷入 Step VI Sum up and homeworkToday we learn some tastes, the invention of potato chips and tea. Remember we can use “be done” to talk about something is done by sb. After class, please write an article about the invention of flying disk, you can use the informations in 3b.板书设计Tastes Th