(
课件网) Unit 1 When was it invented Section B (1a—1e) Talk about the inventions. How many different kinds of inventions do you know Can you give some examples inventions Old inventions Electric stuffs Food Transportation 话题 谈论篮球的发明史。 重点 掌握本课时出现的生词及用法。 难点 进行听力训练,提高综合听说能力。 sweet甜的 crispy脆的 salty咸的 How do they taste hot辣的 bitter苦的 sour酸的 crispy sour sweet salty 1a The words in the box describe how food can taste.Write them under the correct pictures. Some pictures have more than one word. salty duck eggs fruit salad salty sour 1b Write the name of a different food after each word. sweet crispy bananas apples oranges cakes honey cookies potato chips popcorn potato chips salty duck eggs grapes lemons What are needed The potatoes are cut into slices. The slices are cooked in the pan. The pepper and tomatoes are sprinkled. potato chips Who were potato chips invented by When were potato chips invented George Crum chef 1c Listen and circle “T” (for true) or “F” (for false). Potato chips were invented by mistake. They were invented in 1863. The customer thought the potatoes were not thin enough. 4. The customer said they were not salty enough. 5. George wanted to make the customer happy. 6.The customer was happy in the end. T F T F T F T F T F T F 1d Listen again. Complete the sentences. The History of Potato Chips Do you know how potato chips were invented Potato chips _____ by a cook called George Crum. They were invented in _____. George Crum cut the potatoes really, really _____and then cooked them for a long time until they were _____. Finally he put lots of salt on them so they were _____ . thin were invented 1853 crispy really salty A: Did you know potato chips were invented by mistake B: Wow, I didn’t know that. Who invented them A: ... 1e Make a conversation about the invention of potato chips. Use the information in 1c and 1d. 掌握下面的单词、短语和句式 单词 crispy, salty, sour, by mistake, customer 短语 all of a sudden, by mistake, in the end 句式 Potato chips were invented by mistake. Choose an invention and do research on it. Make a mind map of the information you find.Then give a report to the class. Homework Nothing in the world is difficult for one who sets his mind to it. 世上无难事,只怕有心人。