1、Unit 6 When was it invented?Section B 1 (1a-2e) 一、教學(xué)目標： 1. 語言知識目標：1) 能掌握以下單詞：crispy, salty, sour, by mistake, customer 2) 能掌握以下句型： Potato chips were invented by mistake. 2. 情感態(tài)度價值觀目標： 了解世界上一些對人類有著重大意義的發(fā)明的相關(guān)信息，開闊學(xué)生的眼界，養(yǎng)成勤于思考，善于發(fā)現(xiàn)的好習(xí)慣，培養(yǎng)學(xué)生的創(chuàng)造精神。二、教學(xué)重難點1. 教學(xué)重點：1) 掌握本課時出現(xiàn)的生詞及用法。2) 進行聽力訓(xùn)練，提高綜合聽說能力。 3) 看視

2、頻，獲得相關(guān)信息，提高學(xué)生們的信息獲取和總結(jié)能力。2. 教學(xué)難點1) 聽力訓(xùn)練三、教學(xué)過程. Warming upShow some pictures of food and ask the students what are their favorite food and what do they think of the food. 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 p

3、ictures 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.

4、 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 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 s

5、ure 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 e

6、nd. 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 Let the students show the reasons if the answer is false.Work on 1d1. Let Ss read the article in 1d first. Tell Ss to listen again and fill in the blanks with the right

7、words. 2. Play the recording again for the Ss to listen and write the words. The History of Potato ChipsDo 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

8、 until they were _. Finally he put lots of salt on them so they were _. Keys: were invented, 1853, thin, crispy, really salty3. Listen again 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 thin

9、k of the potato chips George cooked at first? 5) How did George cook the potatoes then?. 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. . Discussion and give the report (If time is available)1. Do you know any other inventions that was