Unit 6 Section B 1a-1e 课件 2025-2026学年人教版（2012）九年级英语全册

When was it invented? Section B 1a-1e Unit 6 Learning objects By the end of the class, you will be able to … 1. Learn the key words and phrases. 2. Understand the listening materials. 3. Use the passive voice to talk about the history of the food inventions. (　　)1. The machine is used __________ making shoes __________ the workers. A. as; for B. for; as C. by; for D. for; by (　　)2. It is said that one Greater Bay Area(大湾区) university __________ in Guangdong in the future. A. will be built B. build C. will build D. is built (　　)3. His car __________ five years ago, but it looks quite new. A. buys B. bought C. is bought D. was bought D A D Review What kind of snacks do you like to eat? How do they tastes? Can you describe them? Which taste do you like best? ice-cream sweet, cool and delicious! Warming up How do the bread and snack taste? Can you think of any other flavor (n.味)? What are the four basic kinds of tastes? sour sweet bitter hot They are crispy（脆的）. potato chips biscuits How does the food taste? Presentation lemons yogurt They are sour（酸的. watermelon cake They are sweet（甜的）. lazi chicken hot pot They are hot (辣的). Different food has different taste(味道). 不可数名词 They are salty (咸的). salted eggs 盐蛋 bitter melon苦瓜 coffee It tastes bitter. 苦的 pickled vegetable  ['pɪk(ə)ld] 腌菜 Can you think of some fruit which is sweet / sour? What food is crispy / salty? Sweet food Salty food Sour food crisp food 1a The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. sweet crispy salty sour _______ _______ ____ _______ _______ _______ ____ _______ crispy salty sour sweet salty adj. 脆的； 酥脆的 adj. 咸的 adj. 酸的 Pre-listening sweet ____________________________ crispy ____________________________ salty ____________________________ sour ____________________________ Write the name of a different food after each word. banana apple Beijing Duck potato chips grape candy cracker cookie salt salted fish lemon 1b Pre-listening First what are needed? The potatoes are cut into slices. The slices are cooked in the pan for a long time until they were crispy. The pepper and salt are sprinkled(撒，洒). Who were potato chips invented by? When were potato chips invented? Do you know how to make potato chips? A lot of salt are put on them. They should be cut really thin. Pre-listening Listen and circle T for true or F for false. 1c 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 customer was happy in the end. T F T F T F T F T F T F 错误地；无意中 最后 Listen and choose What did the customer order? A. A plate of potatoes. B. A plate of potatoes chips. C.A plate of fried potatoes. 2. How did George feel after the customer sent the potatoes back? A. Happy. B. Sad. C. Angry. Listen again. Complete the sentences. 1d 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 ___________. were invented 1853 thin crispy really salty Boy 1: Hey, did you know that potato chips were  invented by mistake?  Boy 2: Really? What do you mean?  Boy 1: Well, here on the bag it says that they were  invented by a cook called George Crum.  Boy 2: When was that?  Boy 1: Oh, it was back in 1853.  Boy 2: So, why was it an accident? Listen and repeat. Boy 1: Well, one day, a customer came into the  restaurant where George worked. He  ordered a plate of fried potatoes. When the  potatoes came, he said they were cut too  thick and sent them back to the kitchen.  Boy 2: So what happened?  Boy 1: Well, George was angry, so he cut the  potatoes really, really thin, and he cooked  them for a long time until they were crispy.  And he put lots of salt on them so they were  really salty. He thought the customer would  hate them. Boy 2: And?  Boy 1: And the customer loved them and asked for  more. He told the other customers about  them, and soon everyone was ordering thinly   cut, crispy, salty potato chips. Boy 2: And we’re still eating them today. What a  cool story!  Make a conversation about the invention of potato chips. Use the information in 1c and 1d. 1e Did you know potato chips were invented by mistake? Wow, I didn’t know that. Who invented them? It’s said that they were invented by a cook called George Crum. When was that? Oh, it was back in 1853. Why was it an accident? One day, a customer ordered a plate of fried potatoes. George cooked them for him. When the potatoes came, he said they were cut too thick and sent them back to the kitchen. Post-listening So what happened? George was angry, so he cut the potatoes really, really thin, and he cooked them for a long time until they were crispy. And he put lots of salt on them so they were really salty. He thought the customer would hate them. And then? And the customer loved them and asked for more. He told the other customers about them, and soon everyone was ordering thinly cut, crispy, salty potato chips. 1.by mistake为介词短语，意为“无意中；错误地”, 补充：by accident 偶然地；意外地 例句： ►I missed the school bus by ________ this morning. 今天早上我无意中错过了校车。 ►I took your pen ___________.我错拿了你的钢笔。 Language Points mistake by mistake 【拓展】 mistake还可以构成短语： make a mistake/make mistakes犯错误； mistake…for… 把……错认成……。例句： ►Don’t make _________ any more. 别再出错了。 ►I __________her for our English teacher. 我把她错认成我们的英语老师了。 mistook mistakes 2.The customer was happy in the end. 顾客最终高兴了。 (1) in the end 后来，最后，终于 at the end of ... 在……末 by the end of ... 到……末为止 如：①这个月月末我们将会开个会。 ►____________ this month we’ll have a meeting. ②到去年末为止我们已经做了十架飞机了。 ►_____________last year we’ve made ten planes. At the end of By the end of (2) in the end 用一个单词表达可以是finally，用一个短语表达可以用at last 。 如：最后他赢了。 He won in the end. He won finally. He won at last. Ⅰ. 用所给词的正确形式填空。 1. The TV ____________ (invent) around 1927. 2. They are used for _______ (see) in the park. 3. This kite _________ (make) by Uncle Wang. 4. Tea ______________ (discover) a long time ago. 5. Our classroom _________________ (should clean) every day. was invented seeing was made was discovered should be cleaned Exercises 4.薯条是一个名Crum的厨师发明的。 The potato chips_____ _______ by a cook _______Crum. 5. 昨天这个厨师往鱼上面撒了许多盐。 The_____ ______lots of salt _______ the fish yesterday. called cook put were invented on Ⅱ. 翻译句子。 1.顾客最后终于高兴了。 The customer was happy ________________. 2.这个顾客说这个薯条不够脆。 The customer said that the potato chips weren’t ____________. 3.乔治想让顾客高兴。 George wanted _______________the customer ____________. in the end crispy enough happy to make 选词填空 crispy sweet salty sour 1. I don’t like eating chocolate. The taste is too _______ . 2. Mom added salt but it still wasn’t ______ enough. 3. I prefer lemons to oranges. I like the ______ taste. 4. She likes _______ cookies. They are hard, dry and easily broken. sweet salty sour crispy 2. 薯片是一个名叫乔治·克拉姆的厨师发明的。 Potato chips _______ _______ _______ a cook _______ George Crum. 3. 而且他在它们上面放了很多盐。 And he _______ lots of salt _______ them. Ⅲ. 完成句子。 1. 薯片是由于失误而被发明的。 Potato chips ______ ______ ______ ______. were invented by mistake were invented by called put on 根据句意填入合适的形容词。 Candy is ______, salt is ______, vinegar (醋) is _____, and potato chips are _____. IV. 翻译下面的句子。 那个厨师错把糖放进了汤里。 The cook put sugar into the soup by mistake. sweet salty sour crispy 69092.805 $