unit9SectionB(教育精品).ppt
九年级人教新目标九年级人教新目标Unit 9 When was it invented?Section BHow do they taste?crispysaltycrispysweetsoursweetsweetsoftbitter sweetsoftsalty1a.Fill in the blanks with the words given.soursweet,crispy,salty,soursalty sweetsweet1b.Write the name of a different food after each word.sweet:crispy:salty:sour:banana,apple,cakepotato chips,saladpizza,french fries,olivesgrape,lemon,pickle,grapefruit2a.Listen and circle“T”or“F”.1.Potato chips were invented by mistake.2.They were invented in 1863.3.The customer thought the potatoes werent thin enough.4.The customer said they werent salty enough.5.George wanted to make the customer happy.6.The customer was happy in the end.TFTFFT The history of potato chips _ that potato chips were invented by mistake?Potato chips _ by a chef called George Crum.They were invented in _.George Crum cooked them for a long time until they _.And he sprinkled lots of salt on them so they were _.Did you know were invented1853were crispyreally salty2b.Listen again and complete the sentences.2c.Pairwork A:Did you know potato chips were invented by mistake?B:Wow,I didnt know that.Who invented them?A:it was invented by a chef called Geroge Crum.3a.Read the article and answer the questions.Who invented tea?1.What is the article about?2.When was it invented?3.Who was it invented by?4.How was it invented?It is about the invention of tea.It was invented over three thousand years.It was in invented by the Chinese emperor,Shen Nong.It was invented by accident.Match them into sentences.The teawasnt brought to the western world until 1610.Shen Nongwas boiling drinking water over an open fireSome leavesfell to the waterThe emperordecidedto taste the hot mixture3b.Write an article using the notes in the box.Who:college studentsWhat:metal pie plate,flying diskWhen:1950sWhere:bakery Bridgeport,ConnecticutHow:students eat pie,throw pie platesToday:clubs,magazines,festivalA sample version From pie plate to flying disk The flying disk was invented by college students.Flying disk is a metal pie plate.In the 1950s,several college students ate pies made by a bakery in Bridgeport,Connecticut.They found it interesting to throw the pie plates with each other.Then it became a game.Today,there are flying disk clubs,magazines and even a festival.4a.Think of something that you dont like doing.Then think of an invention that could help you.Write the details in the chart.Problem:we often get hurt by the hot water in the cup.New invention:a cup that can tell you the temperature of the water.Use:It can show the temperature of the water.Price:$50Explanation 1.Potato chips were invented by mistakes.mistake 作名词作名词“错误，误会错误，误会”。也可以作动词。也可以作动词“弄弄错，犯错错，犯错”。常见形式有：。常见形式有：make a mistake 出错出错e.g.You have made a mistake here.mistakefor 错把错把当作当作 They mistook him for his brother.by mistake 错误地错误地 e.g.They sent the letter to me by mistake.3.Did you know that teawas invented by accident?by accident “偶然地，碰巧偶然地，碰巧”。同义词组。同义词组 是是by chance，同义词是，同义词是accidentally,反义反义 词组是词组是on purpose.4.Although tea wasnt brought to the western world until 1610,(1)although 作连词作连词,意为意为“虽然虽然,尽管尽管”,引导让引导让步状语从句步状语从句,我们不能根据汉语习惯我们不能根据汉语习惯,在后在后面使用连词面使用连词but,不过它可以与不过它可以与yet,still连用连用;e.g.Although he is very busy,he always talks with us.(2)notuntil 意为意为“直到直到才才”until 引导一引导一个时间状语从句。个时间状语从句。I did not go to bed until I finished my homework.5.According to an ancient Chinese legend，the emperor Shen Nong discovered tea(1)according to 是个短语介词是个短语介词,意为意为“根据根据;依照依照”后接代词后接代词,名词或由疑问词名词或由疑问词以及以及whether引出的名词性从句。引出的名词性从句。e.g.According to the radio,it will rain tomorrow.(2)discover意为意为“发现发现”，指发现的对象是，指发现的对象是 本来存在的。本来存在的。find意为意为“找到找到”，强调结果。，强调结果。invent意为意为“发明发明”，发明的对象是以前没，发明的对象是以前没 有的东西。有的东西。用所给词的正确形式填空。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 seeingwas made was discoveredshould be cleanedHomeworkWrite an article using the notes in the box on Page 72.
