九年级英语Unit6WhenwasitinventedSectionB(1a-1e)第5课时(教育精品).ppt

Unit6 When was it invented?SectionB(1a-1e)The fourth periodWarming upList some kinds of List some kinds of food and describe food and describe their tastes.their tastes.How do they taste?crispysaltyThey taste crispy.They taste salty.sour,sweetlemonsweetsourice creamsweet,coldpleasant smellpleasant smell bitter bitter苦的苦的苦的苦的 teabitter It tastes bitter.coffeesaltysoursweet salty1a The words in the box describe how food can taste.Write them under the correct pictures.Some pictures have more than one word.sweetsourPotato chips taste salty and crispy.They taste sour and sweet.Fruit salad tastes sour and sweet.Salty duck eggs taste salty.Language points 1.复合名词复数的构成potato chips是一个复合名词，其中第一个名词修饰第二个名词,第一个名词做第二个名词的定语，这样的例子有很多，又如:alarm clock,telephone number等。知识拓展复合名词变复数的规则，你一定要牢记啊！通常只把主体名词变为复数school boyschool boys(学校男生)apple treeapple trees(苹果树)vegetable sandwichvegetable sandwiches(蔬菜三明治)girl friendgirl friends（女朋友）如果没有主体名词，在最后一个名词上用复数。good-for-nothinggood-for-nothings（饭桶、无用的人）three-year-oldthree-year-olds（三岁的孩子）由man,woman和另外一个名词构成的复合名词，两个部分都要用复数。man teachermen teachers(男教师)gentleman farmergentlemen farmers（乡绅）salty sour1b.Write the name of a different food after each word.sweet crispy bananasapples oranges cakeshoneyCookies biscuitspotato chips potato chipssalty duck eggsgrapeslemonsWhat are needed?The potatoes are cut into slices.The slices are cooked in the pan.The pepper and tomatoes are sprinkled.Do you know how to make potato chips?1c.Listen and circle T for true or F for false.1.Potato chips were invented by mistakes.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.TF T F F T1d.Listen again.Complete the sentences.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 until they were .Finally he put lots of salt on them so they were .were invented 1853 thin crispyreally saltyA:Did you know potato chips were invented by mistake?B:Wow,I didnt know that.Who invented them?A:.1e.Make a conversation about the invention of potato chips.Use the information in 1c and 1d.1.by mistake 无意中，无意中，错误错误地地 =by chance mistake可数名词可数名词 make a mistake犯错犯错动词动词(mistook,mistaken)mistake A for B把把A误认为误认为BLanguage points3.custom (n.)风俗；习俗 customer(n.)顾客；客户4.not.enough to do sth不足够.做某事 =too.to(太.而不能)=so.that.如此.以至于.eg:He isnt old enough to go to school.=He is too young to go to school.=He is so young that he cant go to school.adj.enough修饰adj.时，放在adj.之后。enough 修饰名词时，可前可后。5.make+宾语+宾补 make+it+adj.+to do sth.(形式宾语）（真正的宾语）Adj./n.do sth.让某人做某事让某人做某事 eg.Mobile phones make it easier to connect with others.6.cook(v.)做饭;烹饪 (n.)厨师=chef cooker(n.)厨具7.in the end=finally=at last 最终,最后。8.Do you know how potato chips were invented?这这是是how引引导导的的宾语宾语从句，从句要用从句，从句要用陈陈述述语语序。序。9.Potato chips were invented by a cook calledGeorge Crum.called是是过过去分去分词词做定做定语语修修饰饰前面的名前面的名词词cook,译为译为“被叫作被叫作”。Exercise 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 werent .3.乔治想让顾客高兴。George wanted the customer .in the endcrispy enough to make happy 4.薯条是被一个名叫Crum的厨师发明的The potato chips _ _ 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.were invented cook put oncalled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 cleaned退出