Unit 6 When was it invented?
Section B 1 (1a-2e)
一、教学目标： 1. 语言知识目标：
1) 能掌握以下单词：crispy, salty, sour, by mistake, customer, the Olympics, Canadian, divide, divide…into, basket, popularity, look up to, hero, professional 2) 能掌握以下句型：
① Potato chips were invented by mistake.
② It is believed that the first basketball game in history was played on
December 21, 1891.
③ Dr. Naismith divided the men in his class into two teams and taught them to
play his new game.
④ At the same time, they need to stop the competing team from getting the ball
into their own basket.
⑤ These stars encourage young people to work hard to achieve their dreams. 2. 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 1. 教学重点：
1) 掌握本课时出现的生词及用法。 2) 进行听力训练，提高综合听说能力。
3) 阅读短文，获得相关信息，提高学生们的综合阅读能力。 2. 教学难点 1) 听力训练
2) 阅读2b部分的短文并完成相关要求。 三、教学过程 Ⅰ. 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 let’s look at some other delicious food, please. Ⅱ. 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. Try 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: Ⅲ. Listening Work on 1c
1. Tell Ss 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 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 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 listen 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 really, 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 Ⅳ. 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. Ⅴ. Discussion
Show some pictures of playing basketball. Ask Ss some questions about basketball games. Discuss the sport with your partner and share your ideas with the class. e.g.
T: Do you like basketball? (What’s your favorite sport?) S1: Sure. I like it very much. T: Do you watch basketball games?
英语人教版九年级全册Unit 6 Section B 教案
