(
课件网) Section B(1a—1e) UNIT 1 When was it invented 第 3 课 时 学 习 目 标 学会运用描述食物味道的单词：crispy, salty, sour, sweet； 1 3 学会用被动语态谈论薯条的发明历史。 通过听说训练，了解薯条的发明历史； 2 What are the four basic kinds of tastes sour sweet bitter salty 课 堂 导 入 [ sa (r)] [ b t (r)] potato chips salty sweet ice-cream salted duck egg salty lemons sour Can you name some food that are associated with the four tastes The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. 1a 课 堂 学 习 _____ _____ _____ _____ _____ _____ _____ _____ crispy sour salty sweet sweet crispy salty sour salty adj. 脆的；酥脆的 adj. 酸的 adj. 咸的 [ kr spi] [ sa (r)] 1.salty 咸的（教材第5页，1a) 是由名词salt(盐，食盐）加后缀－y构成的形容词。 I don't like salty food. 我不喜欢咸的食物。 He didn't have much for dinner because the dishes were too salty. 他晚餐吃得不多，因为菜太咸了。 拓展 在英语中，很多名词后加－y可以构成形容词。 cloud(云）＋－y→cloudy(多云的） wind(风）＋－y→windy(多风的） 常在“用所给词的适当形式填空”题中考查salt,salty的词形转换。 〔形容词〕 在句中作定语或表语。 rain(雨）＋－y→rainy(多雨的） sleep(睡觉）＋－y→sleepy(困倦的） [ s lti] sweet _____ crispy _____ salty _____ sour _____ Write the name of a different food after each word. banana apple Beijing Duck potato chips 1b grape candy cracker cookie salt salted fish lemon [ kr spi] Look and guess: What are they talking about Where does the story happen 1. Potato chips were invented by mistake. 2. They were invented in 1863. 3. The customer thought the potatoes were not thin enough. Listen and circle T for true or F or false. 1c T F T F T F n. 顾客 Listening 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 2.Potato chips were invented by mistake. 炸薯片是无意中被发明的。（教材第5页，1c) by mistake 是介词短语，在句中作状语。 I took your pen by mistake.我错拿了你的钢笔。 无意中；错误地 3.The customer was happy in the end.最后顾客高兴了。（教材第5页，1c) in the end They were out of danger in the end.他们最后脱险了。 拓展 ①at the end of 后接地点名词时，表示“在······的尽头”； 后接时间名词时，表示“在······结束时”。 at the end of the street 在街道的尽头 at the end of this month 在这个月底 ②by the end of... 在······底以前；到······末为止 常用于将来时态或过去完成时的句子中。 We will finish the work by the end of this year. 我们将在今年年底以前完成这项工作。 最后；最终 相当于at last,finally,其后不接of短语。 What are needed The potatoes are cut into slices[ sla s z]薄片. The slices are cooked in the pan. The pepper and tomatoes are sprinkled[ spr kld]撒. potato chips Who were potato chips invented by When were potato chips invented George Crum cook 1. Who invented potato chips They were invented by a cook called George Crum. 2. When were they i ... ...
