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1、《Unit9Whenwasitinvented》（第4课时）教案课题：Unit9Whenwasitinvented?<4>讲课教师：学科：English课时：4总课时数：57教 学目标知识与技能Tolearntousepassivevoice(questionsandstatements)过程与方法Totrainstudents’reading,listeningandspeakingskills.情感态度与价值观Trainthestudentstousetheirheadsandmakesomeinventionsinlife.教材分
2、析教学重点Thenewwordsandphrasestoexpressdifferetkindsoffood.教学难点Passivevoice(questionsandstatements)教 学 过 程教师活动学生活动备注（教学目的、时间分配等）Lead-inGreetingsandDutyReaport.Talkaboutyourfavoriteinventions.Whatcanwedowiththecomputer?Yes,ofcourse.Wecanrelaxourselvesbyplayingcomputergames.But
3、playingcomputergamestoomuchwillwasteourtime,andit’salsobadforoueeyes.Justnow,wetalkedaboutsomemoderninventions.Doyouknowthehistoryofpotatochipsandtea?Thisclass,let’slearnsomethingaboutthem----Unit9SectionB.InteractionandConsoladationHaveadutyreport.Listenaskandanswer.S1：W
4、e can listen to music and do some reading.S2：We can play computer games. .5’1’1.Newwords1)crispy2)chef3)sweet--sour--bitter--hot--saltytaste~4)sprinkle5)bymistakeHaveyouevereatenpotatochips?Whocantellmethetastesofthem?1a&1b2.Listening2a&2b2aWe’vetalkedaboutthetastesofpota
5、tochips.But,whoweretheyinventedby,andwhenwerepotatochipsinvented,doyouknow?Sorry,youdon’t.Sowhydon’twelistentothetapeandtrytogettheanswer?2b1)Predictetheanswerstothelisteningtest.2)Trainthemtolistenandwritetheimportantpartofanswers.3)Checktheanswers.4)Readthepassage.usefu
6、lexpressionsbeinventedbymistake,onthebag,backin1853,oneday,send…back,aplateoffriedpotatoes,becuttoothick,inabadmood,cut…reallythin,cook…alongtime,sprinkle…on…,thinly-sliced,crispy,saltypotatochips,acoolstory2cPairworkDoyouthinkthehistoryofpotatochipsissointeresting?Nextle
7、t’sroleplaytheconversationsaboutit.2aListenandcircle,andthenlistenagainandcorrectthemistakes.Practiceusingbymistake.Listenandwrite.Practicechef ,sprinkle28’Workinpair.教师活动学生活动备注（教学目的、时间分配等）Doyouknowanyinterestinghistoryofinventions?Let’senjoyittogether.SummaryWhatdidwelea
8、rn?Exercises1.Carswereinventedin1885.(对划线部分提问)_______________________2.JulieThompsoninventedelec
