1、Unit6When was it invented? Section B(1a-1e) 一、教学目标：教学目标： 1. 语言知识目标：语言知识目标： 1) 能掌握以下单词：crispy, salty, sour, by mistake, customer. 2) 能掌握以下句型： Potato chips were invented by mistake. 2. 情感态度价值观目标：情感态度价值观目标： 了解世界上一些对人类有着重大意义的发明的相关信息， 开阔学生的眼界， 养成勤于思考，善于发现的好习惯，培养学生的创造精神。 二、教学重难点教学重难点 1. 教学重点教学重点 1)掌握本课时出现
2、的生词及用法。 2)进行听力训练，提高综合听说能力。 2. 教学难点教学难点 听力训练 三、教学过程三、教学过程 . Warming up 1. Let Ss watch an interesting picture. 2.Ask some questions about them. 1. What did they eat? S1: Ice cream. 2. What did the big dog think of the ice-cream? S2: Sweet, cool, and delicious! Well lets look at some other delicious f
3、ood, please. . Talking Work on 1a 1. Tell Ss that the words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. 2. Ss work with their partners and try to write some proper words under the pictures. 3. Let some Ss read their answers. T
4、ry to remember the new words. Work on 1b 1. Let some Ss read the adjective words in the box. Make sure they all know the meaning of each word. 2. Ss discuss with their partners. Try to write the name of a different food after each word. Learn the new words together: . Listening Work on 1c 1. Tell Ss
5、 the conversation is about how the potato chips were invented. The story is very interesting. 2. First, let one Ss read the sentences in 1c. Make sure they know the meaning of each sentence. 1. Potato chips were invented by mistake. 2. They were invented in 1863. 3. The customer thought the potatoes
6、 were not thin enough. 4. The customer said they were not salty enough. 5. George wanted to make the customer happy. 6. The custom was happy in the end. 3. Play the recording for the Ss. Listen for the first time. Play the recording again and judge T or F. Keys: T, F, T, F, F, T 4. Listen and answer
7、 the questions. 1. Who invented potato chips? 2. When were they invented? 3. What did the custom order at the restaurant? 4. What did the custom think of the potato chips George cooked at first? 5. How did George cook the potatoes then? Work on 1d 1. Let Ss read the article in 1d first. Tell Ss to l
8、isten again and fill in the blanks with the right words. 2. Play the recording again for the Ss to listen and write the words. 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 re
9、ally, really _ and then cooked them for a long time until they were _. Finally he put lots of salt on them so they were _. Keys: were invented, 1853, thin, crispy, really salty . Practice 1：Mum put lots of salt on the fish . It was really(salt, salty). 2：It is said that potato chips were invented(in
10、, by). 3：He wanted(drank, to drink) that cup of tea. 4 ： The customer thought the( potatoes,potatos) were not (salty enough,enough salty). 5：The trip to my hometown made me(happily,happy). V. Pair work 1. Work in pairs. Make a conversation about the invention of potato chips. Use the information in 1c and 1d. 2.Ask some pairs to act out their conversation in front of the class. Homework 1.Act out 1e conversation. 2.Prepare new words in the passage of 2a Blackboard Design Unit6Whenwasitinvented ? New words:Language points: 1) Phrases:2) 3) 课后反思：课后反思：
