人教版九年级Unit 6 When was it invented -Section B 1a—1e-ppt课件-(含教案)-市级公开课-(编号：10394).zip

KarlBenzinventedthefirstcarin1885. Thefirstcarwasinvented(byKarl Benz)in1885. Thefirsttelephonewasinvented(by Bell)in1876. Bellinventedthefirsttelephonein1876. Thefirsttelevisionwasinvented(byJ.L. Baird)in1927. J.L.Bairdinventedthefirsttelevisionin 1927. Howwasitinvented? Itwasinventedbyaccident. Didyouknowpotatochips wereinventedbymistake? Wow,Ididntknowthat. Whoinventedthem? ice-cream How about its taste? Sweet,coolanddelicious! How do the bread and snack taste? Sweetanddelicious. Can you think of any other flavor? Salty,hot,bitter,sour,fresh The words in the box describe how food can taste. Write them under the correct pictures. Some pictures have more than one word. 1a _ _ crispy sour salty sweet sweetcrispysaltysour salty adj.脆的；酥脆的adj.酸的 adj.咸的 sweet_ crispy_ salty_ sour_ Write the name of a different food after each word. banana apple BeijingDuck potatochips 1b grape candy cookie cheese saltedfish lemon 1.Potatochipswereinventedby mistake. 2.Theywereinventedin1863. 3.Thecustomerthoughtthe potatoeswerenotthinenough. Read the sentences, what are they talking about? Listen and circle T for true or F or false. 1c TF TF TF n.顾客 4.Thecustomersaidtheywere notsaltyenough. 5.Georgewantedtomakethe customerhappy. 6.Thecustomwashappyinthe end. TF TF TF The History of Potato Chips Doyouknowhowpotatochipswere invented?Potatochips_by acookcalledGeorgeCrum.Theywere inventedin_. Listen again. Complete the sentences. wereinvented 1853 1d GeorgeCrumcutthepotatoesreally, really_andthencookedthem foralongtimeuntiltheywere_. Finallyheputlotsofsaltonthemso theywere_. thin reallysalty crispy 1.Whoinventedpotatochips? Theywereinventedbyacookcalled GeorgeCrum. 2.Whenweretheyinvented? In1853. Listen and answer the questions. 3.Whatdidthecustomorderatthe restaurant? Heorderedaplateoffriedpotatoes. 5.HowdidGeorgecookthepotatoesthen? Hecutthepotatoesreally,reallythin andcookedthemforalongtimeuntil theywerecrispy.Andheputlotsof saltonthemsotheywerereallysalty. 4.Whatdidthecustomthinkofthepotato chipsGeorgecookedatfirst? Hethoughttheywerecuttoothick. Make a conversation about the invention of potato chips. Use the information in 1c and 1d. 1e Didyouknowpotatochips wereinventedbymistake? Wow,Ididntknowthat. Whoinventedthem? Itssaidthattheywereinventedby acookcalledGeorgeCrum. Whenwasthat? Oh,itwasbackin1853. Whywasitanaccident? Oneday,acustomerorderedaplate offriedpotatoes.Georgecookedthem forhim.Whenthepotatoescame,he saidtheywerecuttoothickandsent thembacktothekitchen. Sowhathappened? Georgewasangry,sohecutthepotatoes really,reallythin,andhecookedthem foralongtimeuntiltheywerecrispy. Andheputlotsofsaltonthemsothey werereallysalty.Hethoughtthe customerwouldhatethem. Andthen? Andthecustomerlovedthemand askedformore.Hetoldtheother customersaboutthem,andsoon everyonewasorderingthinlycut, crispy,saltypotatochips. I.根据汉语意思完成英语句子,每空词数不限。 1.刚才杰里错把盐放进了咖啡里。 Jerryputsaltintohiscoffee_ justnow. bymistake 2.有人错拿了我的伞。 Somebodytookmyumbrellabymistake. 3.我错拿了你的包。 Ipickedupyourbagbymistake. basketball court Whoinventedbasketballandhowisit played? Write a short passage about making potato chips. 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， 二、教学重难点教学重难点 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。 2. 教学难点 1) 听力训练 三、教学过程三、教学过程 活动一：复习旧知活动一：复习旧知 . Lead in (1) Revision (2) show learning aims . Warming up Show a picture of food and ask the students some questions about them. 活动二：新课传授活动二：新课传授 . 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: . 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 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 3. 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 think of the potato chips George cooked at first? 5) How did George cook the potatoes then? 活动三：探究活动活动三：探究活动 . Pair work 1. Work in pairs. Make a conversation about the invention of potato chips. Use the information in 1c and 1d. . Discussion work in pairs 2. Ask some pairs to act out their conversation in front of the class. . Discussion Show a picture 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? (Whats your favorite sport?) S1: T: Do you watch basketball games? S2: Yes. I like to watch the NBA and CBA. T: Do you know the history of basketball game? . Prevision Do you want to know Who invented basketball and how is it played? Next class we shall study about it. . Language points 1. Potato chips were invented by mistake. by mistake 错误地；无意中 e.g. Somebody took my umbrella by mistake. 有人错拿了我的伞。 I picked up your bag by mistake. 我错拿了你的包。 活动四：课堂练习活动四：课堂练习 . Exercises I. 根据汉语意思完成英语句子, 每空词数不限。 1. 刚才杰里错把盐放进了咖啡里。 Jerry put salt into his coffee _ just now. 2. .有人错拿了我的伞。有人错拿了我的伞。 Somebody took my umbrella by mistake. 3. 我错拿了你的包。我错拿了你的包。 I picked up your bag by mistake. Homework Write a short passage about making potato chips. 反思 这节课，谈论 the history of potato chips 的发明史。我事先准备了几包 potato chips 准备上课用，但是，紧张，忘拿了，课堂用语也单调，也结巴了。我想用物来导课，学生 一定感兴趣。并且最后作为奖励，给课堂表现好的学生。在教学过程时候，发现学生对于 potato chips 的历史不是很清楚。通过听力练习，小组活动，大多数学生了解了。今后的教 学中，要准备好课堂上的材料，充分的准备才能使课堂完美。