Unit6Whenwasitinvented？一.教学目标1.语言技能目标结合自己的生活经历，能描述食品的味道，能用英语描述薯片的发明过程。2.语言知识目标a.Wordsandphrases：crispy，salty，sour，（by）mistake，chef，sprinkle，lemonbNewspatterns:1..Ittastes…Theytaste…2.Didyouknowpotatochipswereinventedbymistake？3.Ithinkitwouldbebettertohave….3.学习策略目标通过听力技巧的训练，培养听写能力。4情感态度目标了解薯片的来历，拓展视野、丰富生活经历，对食品领域有所涉猎。二.教学重点1.学习新的词汇和短语，并能在句中听出并理解他们。2.结合自己的生活经历，能描述食品的味道，能用英语描述薯片的发明过程。。三.教学难点掌握听写的技巧。四.教具Ppt五.教学过程Step1.Revision1.Whataretheyusedfor？They’reusedfor…Shoeswithadjustableheels（heatedicecreamscoop，battery-operatedslipperslightbulbs，microwaveoven，…）Step2.Presentation1.T:Weknowsomeinventionsnow，howaboutfood？Pleaselookatthesepictures.T:Howdotheytaste?（lemons）Ss:Theytastesour.T:whatelsetastessour?Ss:vineger/…(Thesamewaytoteach:icecream---sweettea----bitterpotatochips----crispyandsalty)2.T：Differentfoodshavedifferenttastes(n.),sotheytaste(v.)different.Writethenameofdifferentfoodsaftereachword.（tastes）--1b3.Practicethenewwords-----SelfCheckFillineachblankwiththecorrectwordgiven.（P73---1）4.Forfun:Whatdoes“acouchpotato”mean?Readandguess!（PPT）smallpotato小人物,微不足道的人hotpotato难对付的人thecleanpotato最适当的事物，正派的人potato-head傻瓜potatodigger古板守旧、不受欢迎的人couchpotato吃饱饭后成天窝在沙发上看电视的人mousepotato整天坐在电脑前的电脑迷Step3.Llistening1.T：Asfood,howwaspotatochipinvented?Doyouknowthehistoryofpotatochips?TheywereinventedbyachefcalledGeorgeCrumonehundredyearsago.Butheinventedthembymistake.2.Nowlet’slisten(2a)andcircle“T”(fortrue)or“F”(forfalse).Beforelistening,youshouldreadtheinformationcarefullyandquicklyandguesstheanswer.(Listeningstrategy1)3..Listenagain.Competethesentences.(2b)Whileyouarelistening,youshouldlistenforthekeywords.(Listeningstrategy2)4..Write(填空)----Thehistoryofchips(见PPT)5.Accordingtothemessage,thentellastory.Step4.DreamIfIwereachef,Iwouldliketo….(见PPT)Step5.Homework1.WB2.Tellthestoryofpotatochips.3.Listen2a、2b4.Maketwosentences.六.BbdesignUnit9Whenwasitinvented?SectionB1a-2c七.反思crispysaltysour（by）mistake，chef[ʃef]sprinkle[`spriŋkllemon1..Ittastes…Theytaste…2.Didyouknowpotatochipswereinventedbymistake？3.Ithinkitwouldbebettertohave….
