教学课件外研版七年级上册英语（新教材）

DevelopingideasUnit6Thepowerofplants

LearningObjectivesInthislessonyouwill:1.getsomefactsaboutthecorninMexico;2.retelltheusageandculturalvaluesofthecorn;3.makeaconversationabouttheusageofaplant.

Whatplantscanyouseeinthepictures?Leadinricewheatcorn

Howdoyouusuallyeatthem?ricenoodlesbreadboiledcorn

BrainstormWhatfoodaremadefromcorns?popcorntacocornsoupcornflourbuns

While-listeningJasonisfilmingavlogaboutcorn.Listentotheopeningofthevlogandchoosethemainidea.a.ItexplainstheimportanceofcorninMexico.b.Itcomparescornindifferentcountries.c.ItdescribesafamousMexicancorndish.

HereareJason’snotesforthevlog.Readandguesswhatmaybefilledintheblanks.数词数词名词数词名词

ListenagainandcompleteJason’snotesforthevlog.409,000cooking600culture

LearningtolearnListeningfornumbersWhenlisteningfornumbers,payattentiontowordsandexpressionslikenearly,about,over,andmore/lessthan.Theyusuallycomebeforenumbers.

Whatdoyouknowaboutcornasafoodplantnow?Thebiggestonewasnearly40centimeterslong.PeoplestartedgrowingcorninMexicoabout9,000yearsago.Thereareover600corndishesnow!hugesizelonghistoryrichdishesimportantamazing

Listentotheconversationandcompletethesentences.Fromcorn1.,wecanmakefoodssuchastacosand2..Usingcornhusks,wecanmaketraditional5..seedschipsteahealthdolls

Listenagain.Thentalkabouthowpeopleaskforandgivepermission.Askingforpermission:Givingpermission:CanItrythetaco?MayItakeavideoofthem?Certainly.Sure.

LearningtolearnAskingforandgivingpermissionAskingforpermissionhelpsusgetsomethinginapoliteway.WecanusethequestionsMayI...?orCould/CanI...?PeoplecanreplyCertainly,SureorGoahead.

SummaryTrytotalkabouttheusesofcornwiththemindmap.historycornsilkcornhuskscornseedsMexica