Unit+2+Understanding+ideas+公开课课件【知识精讲精研+能力培优提升】高中英语外研版（2019）必修第三册

Unit2Makingadifference

UnderstandingideasTeachingobjectives

1，学生通过看图了解背景知识，对淡水资源匮乏问题进行初步思考;Studentscanunderstandthebackgroundknowledgebylookingatthepictureandmakepreliminarythinkingabouttheproblemoflackoffreshwaterresources;2，学生理解故事发展的时间顺序，学习并掌握与话题相关的语言知识;Studentscanunderstandthechronologyofstorydevelopment,learnandmasterlanguageknowledgerelatedtothetopic;3，学生基于文章内容联系生活，发表自己的意见和观点。Studentscanconnectwithlifeonthebasisofthecontentofthearticleandexpresstheiropinions.ReviewingLookatthesepicturesandrecallwhatyou’velearnedlastlesson.BaiFangliFlorenceNightingaleRedAdairPre-readingReadthemapandtalkaboutwaterproblemsinAfrica.Freshwaterstress(1,000to1,700m³/capita/year)Freshwatershortage(lessthan1,000m³/capita/year)Africaisfacingaseriousshortageofwaterresources.Pre-readingTalkaboutthereasonsofwaterproblemsinAfrica.Frequentdroughtsduetoglobalwarminganddeforestationhaveshrunklakesandchangedrainfallpatterns.Pre-readingGrowingpopulationhasincreasedthedomesticandindustrialwaterconsumption,whichcan’tbefullysupportedbypoorinfrastructure.Pre-readingTraditionalirrigationtechnologyandagriculturehavecausedagoodsumofwaterwaste.Pre-readingCollectandpurifyrainwaterFundwaterprojectsBuildwellsandpumpsRecyclewastewaterSetupfacilitiestopurifywaterDevelopnewwaterconservationtechnologiesDiscusswhatyouthinkarethemosteffectivesolutionstosupplyAfricawithfreshwater.Pre-readingMakeapredictionaboutthepassage.While-readingScanthepassageandpayattentiontowhatRyandidtohelpsolvetheproblemofwatershortageinAfrica.Ryancleanedwindowsanddidgardeningforhisfamilyandneighbors.Ryanaskedforhelpfromhisclassmatesandneighborsandpersuadedthemtodonatemoney.AfriendofRyan’smotherhelpedmakehisstorygopublic.Ryan

set

up

a

foundation

toattractsupportfrommoreandmorepeople.While-readingSkimthepassageandchoosethebestexplanationofthetitleandgiveyourreasonafterreading.ThewellbuiltbyRyansolvedtheproblemofworldwidewatershortage.Themorewellsyoudig,thebettertheworldwillbe.ThewellbuiltbyRyanencouragedmorepeopletohelpmaketheworldabetterplace.While-readingSkimthepassageandchoosethebestexplanationofthetitleandgiveyourreasonafterreading.ThewellbuiltbyRyansolvedtheproblemofworldwidewatershortage.Themorewellsyoudig,thebettertheworldwillbe.ThewellbuiltbyRyanencouragedmorepeopletohelpmaketheworldabetterplace.√Post-readingCompletetheRyan’sstorywithexpressionsfrompassage.1Ryancouldgetcleandrinkingwaterwithintensteps,butsomeAfricanchildrenhad

to

.SoRyandecidedtohelp.2Ryancleanedwindowsanddidgardening,andreached

.Butwhenhe

,hewastolditcost$2,000tobuildawell.3Ryanpersuadedhisclassmatesandneighborsto

.Hismother’sfriendalsohelpedhim.Afterseveralmonths,heraisedenoughmoneyandawellwasbuiltinUganda.

walktenkilometrestogetwatereverydayhisfirsttargetof$70gavethemoneytoacharitydonatemoney4RyanvisitedUganda.Hesaw

.Healsosaw___________________

whohadturnedouttowelcomehim.5Later,Ryan’sexperienceledhimto

toencouragemorepeopletohelp.

6Today,thelife-changinggiftofcleanwater_____________________________________

___________________________.thefinishedwellhundredsofdelightedstudentssetupafoundationhasbenefitedover800,000peoplein16countriesacrossAfricaMatchthegivensentenceswiththerelevantparagraphs.1RyanwasinvitedtoUgandatoacceptthechildren’swelcome.2RyansetupafoundationtocallonmorepeopletohelpAfricasolvewaterproblems.3Ryan’scourageandpersistencemadehisdreamcometrue.4RyanwasdeterminedtohelpAfricaafterhelearnedofitswatershortage.5Ryanraised$2000andbuiltawellnearaprimaryschoolinUganda.6Ryanearned$70byworkingforhisfamilyandneighbors.Post-readingRyanwasdeterminedtohelpdevelopingAfricancountries.1.Asasix-year-oldCanadianschoolboy,RyanhadtroublebelievingthewordsspokenbyhisteacherthatmanypeopleindevelopingAfricancountriescouldn’tgetenoughcleanwater.Helookedacrosstheclassroomatthedrinkingfountain.Itwasveryclose—onlytenstepsaway.So,

Ryanaskedhimself,“WhydosomeAfricanchildrenhavetowalktenkilometerstogetwatereveryday?Andwhyisthewatersodirtythatitmakesthemsick?”YoungRyanthought,“Lifeiseasyforme,buthardforthosepeople.Whydon’tIhelp?”Post-readingRyanreachedthefirsttargetof$70,butthatwasnotenough.2.Atfirst,hisplanwastoearnmoneytobuildasinglewellsomewhereinAfrica.Hecleanedwindowsanddidgardeningforhisfamilyandneighbors.Hesoonreachedhisfirsttargetof$70,butwhenhegavethemoneytoacharity,hewastoldthatitactuallycost$2,000tobuildawell.Seventydollarswasonlyenoughforahandpump.Ryanunderstoodthatahandpumpwouldn’thelpthechildren.Whattheyneededwasawelldugneartheirhomes.Post-readingRyangotmorehelpsandraisedthe$2000.3.Twothousanddollarswasalotofmoney,butRyandidn’tgiveup.Hewasdeterminedtohelpotherchildrenhavecleanwater.Hestartedtoaskforhelpfromhisclassmatesandneighborsandpersuadedthemtodonatemoney.Atthesametime,afriendofRyan’smotherhelpedmakehisstorygopublic.Afterseveralmonths,Ryanhadraisedthe$2,000,withwhichawellwasbuiltnearaprimaryschoolinUganda.Thechildrenattheschoolnolongerneededtowalkforhourstogetwater.Theyweregratefultohimandinvitedhimtovisit.Post-readingRyanwasinvitedtoUgandaandgotalongwellwiththechildrenhere.4.InUganda,Ryanatlastsawthefinishedwellwithhisowneyes.Butthatwasnotall.Healsosawhundredsofdelightedstudentswhohadturnedouttowelcomehim.Theysanganddancedhappily.Someevenofferedhimfoodandgifts.AtfirstRyanwasnervous,butsoonagreatwarmthfilledhim.Hereallyhadmadeadifferenceforthesechildren.Hebrokeintoajoyfulsmile.Post-readingRyansetupafoundationtoencouragemoreandmorepeopletohelp.5.Later,Ryan’sexperienceledhimtosetupafoundationtoencouragemorepeopletohelp.Manyinspiredpeoplegavehimtheirsupport.Ryan’sfoundationcontinuestoattractsupportfrommoreandmorepeople,sotheworkofbuildingmorewellscangoon.Today,over800,000peoplein16countriesacrossAfricahavebenefitedfromthelife-changinggiftofclean,safewater.Post-readingRyan’squestionchangedandhemadehisdreamareality.6.Now,asanadult,Ryansaysthatthequestiontoaskisnot“Whydon’tIhelp?”,but“HowcanIhelptoday?”.Thisinsightgrewfromthedeterminedattitudeofasix-year-oldboywhohadthecourageandperseverancetomakehisdreamareality.Post-reading1RyanwasinvitedtoUgandatoacceptthechildren’swelcome.2RyansetupafoundationtocallonmorepeopletohelpAfricasolvewaterproblems.3Ryan’scourageandpersistencemadehisdreamcometrue.4RyanwasdeterminedtohelpAfricaafterhelearnedofitswatershortage.5Ryanraised$2000andbuiltawellnearaprimaryschoolinUganda.6Ryanearned$70byworkingforhisfamilyandneighbors.Post-readingTrytoretellthestorywiththehelpoftheflowchart.RyandevelopingAfricancountries.Ryanreachedtheof$70.Butthat’snotenough.Ryangotmorehelpsandwasdeterminedtohelpfirsttargetraisedthe$2000.RyanwasinvitedtoUgandaandhere.Ryantoencouragemorepeopletohelp.Ryan’squestionchangedandhegotalongwellwiththechildrensetupafoundationmadehisdreamareality.Post-readingThinkandshare(1)Whatkindofpersondoy