河南省南乐县张果屯乡中学九年级英语《Unit9Whenwasitinvented：Period2》教案人教新目标版Step1Playagame(1a,1b:P71)TolearnthewordsaboutfoodtasteAskonestudenttocometothefronttodoablindtastetest.Showabagtothestudents.T:Look,thereare4kindsoffoodinit.Iwillletoneofyoucometothefrontandtastethem.ButIwilluseapieceofclothtocoverhisorhereyes.Aftertasting,heorshehastotellhoweachfoodtastesandwhatfooditis.Areyouclear?Sophie,please.CoverSophie’seyesandgiveherthefoodonebyone.Sophietasteseachfoodandtriestoguesswhatitis.S:Itissweet.Ithinkitisanapple.Theyaresaltyandcrispy.Ithinktheyarepotatocrisps.Itissour.Ithinkitisatomato.Itissalty.ButIdon’tthinkIhaveeatenthisfoodbefore.Itisdelicious.T:Doyouenjoythefood?Nowyoucantakeoffthecloth.ThelastoneisPizza,whichispopularwithwesterners.Youcantakeitwithyouandgobacktoyourseat.Thankyou.Sophiegoesbacktoherseat.T:Hi,class.WhatarethefourdifferenttastesofthefoodSophiehad?S:Theyaresweet,crispy,saltyandsour.T:Yes.Theyarewordsusedtodescribedifferenttastesoffood.Trytousethemtodescribethefoodinthepictureof1a,SectionB.Askthestudentstoreadthepicturesof1ainSectionBanddescribehowthefoodtastes.T:Now,lookatthefourpictures.Whatarethey?Ss:Theyarepotatochips,lemon,icecreamandtea.T:Youareright.Pleaseusethewordswe’vejustlearnttodescribehowtheytaste.S1:Potatochipsarecrispy.Lemonissour.Icecreamissweet.Teaissweet.T:Howaboutyou?Doyouhaveadifferentidea?S2:Potatochipsarecrispyandsalty.Lemonissour.Icecreamissweet.Teaissweet.T:Good.IthinkS2’sanswerisbetter.Nowlet’srepeatthedescriptiontogether.Ss:...Askthestudentstowritethenameofadifferentfoodaftereachwordin1bofSectionB.T:Now,writethenamesofdifferentfoodsaftereachtasteasmanyaspossible.Ithinkthisisaneasyjobforyou.Thinkofthefoodyoueateverydayathomeorinrestaurants.Collecttheanswersandputthemdownontheblackboard.Sampleanswers:sweet:apple,orange,banana,honey,orangejuice,cakesandcandiescrispy:salad,potatochips,lettuceandcucumbersalty:pizza,Frenchfries,olivessour:grapes,pickleandvinegarStep2Listening(2a,2b:P71)Askthestudentstolistentoapassageaboutpotatochipsanddealwithsometasks.T:First,listenandjudgewhetherthestatementsin2aaretrueorfalse.Doyouknowwhatyoushoulddofirst?S:Yes.Readtheinstructionsandsentences.T:Beforelistening,graspthemainideaoflisteningmaterialaccordingtothekeywords.Whicharethekeywordsinthesesentences?S:Bymistake,1863,notthinenough,notsaltyenough,happy,intheend...T:Good.Therecordingwillbeplayedtwice.Forthefirsttime,listencarefullyandpayattentiontothekeywords.Playthetapeforthefirsttime.T:Forthesecondtime,listenandfinishthetaskof2a.Playthetapeforathirdtimeandletthestudentscompletethesentencesin2b.Thenchecktheanswers.Step3Pairwork(2c:P71)Askthestudentstoroleplaytheconversationabouttheinventionofthepotatochips.T:Afterlisteningtothetape,canyoutellmewhenandhowpotatochipswereinvented?Whoinventedthem?Nowreadtheinstructionsof2c.Discusswithyourpartnersandmakearoleplayaccordingtothesampledialogue.Afterthestudentsfinishdiscussion,asksomepairstopresenttheirdialogues.Asampledialogue:S1:Didyouknowthatpotatochipswereinventedbymistake?S2:Wow,Ididn’tknowthat.Whoinventedthem?S1:TheywereinventedbyachefcalledGeorgeCrum.S2:Whenweretheyinvented?S1:Theywereinventedin1853.S2:Whydoyousaytheywereinventedbymistake?S1:OnedayacustomerintherestaurantwhereGeorgeworkedsentbackhisplateoffriedpotatoesbecausehesaidtheywerecuttoothick.Georgewasinabadmood,sohe...
