Unit5WorkingtheLandUsinglanguageReadingforwriting課件-高中英語人教版選擇性

EvaluatechemicalfarmingandorganicfarmingBook4Unit5UsinglanguageLearningobjectivesInthisperiod,wewill:understandthedifferencesbetweenchemicalandorganicfarmingandtheiradvantagesanddisadvantages;learnabouttheauthor'swritingtechniques;learnaboutthestructureofanargumentativeessay;writeanessaytoexpressourviewsononetopic.Predication1.Whatisthefarmerdoinginthepicture?Why?2.Whatisthefarmerwearing?Why?Sprayingchemicalpesticidesonthecrops.v.噴灑n.殺蟲劑Wearingamaskandhat.Itmayharmpeople’shealth.1.Whatischemicalfarming?Whatisorganicfarming?ChemicalVersusOrganicFarmingReadfortitleandtypeOrganicfarmingissimplyfarming_________________.Chemicalfarmingisfarmingwith_________,especially___________________and__________________.while2.Whattypeofwritingisthispassage?A.Description B.Expository C.ArgumentationD.NarrationchemicalschemicalpesticidesartificialfertilizerswithoutchemicalsPara.1Para.3ReadandDiscuss15minutesstructure1.Matchthemainideaswiththeparagraphsonpage56.2.Drawthestructureofthetext.details1.Whydidmanyfarmerswelcometheintroductionofchemicalfarming?2.Whataretheproblemswithchemicalfarming?3.

Whatarethebenefitsoforganicfarming?4.Whatistheproblemoforganicfarming?Requirements：1.Readthepassageindependentlyandfinishthetasksabovein10minutes.(Youcanmarktheanswersinthetextandusethescanningandskimmingreadingstrategy.)2.Discusswithyourpartnersandtrytosolveyourpuzzlesaboutthetasksaboveoraboutthetext.

takenotesdownwhilediscussingmarktheunsolvedproblemsandbereadytoputupquestionsA.Whatorganicfarmingis.B.Whyman-madechemicalsarestillusedinfarming.C.Organicmethodsforproducingrichsoil.D.TheproblemswithchemicalfarmingPara.MainideaDetail1-2Pesticidescankillhelpful__________________.Somepesticideshavebeen__________becauseofthe__________________.Cropsgrownwithchemicalfertilisersusually_____________

tobefullof______________.3Manyorganicfarmersuse_________________________asfertiliser.4Theyoften_____________________grownineachfield__________.Theyalsoplantcropsthatuse_______________

ofthesoiltohelpkeepitrich.5Organicfarmingisnowherenearabletomeetthehigh________________________________.bacteriaandinsectsprohibiteddamagetheycausegrowtoofastnutritionnaturalwastefromanimalschangethekindofcropeveryyeardifferentdepthsdemandforfoodaroundtheworldDACBReadforMainIdeaandDetailsReadforstructureChemicalVersusOrganicFarmingDrawthestructureofthetext.EvaluatechemicalfarmingandorganicfarmingFindmoreaboutthe2kindsoffarming:1.Whydidmanyfarmerswelcometheintroductionofchemicalfarming?2.Whataretheproblemswithchemicalfarming?3.

Whatarethebenefitsoforganicfarming?4.Whatistheproblemoforganicfarming?Manyfarmerswelcomedthemasagreatwayto

fightcropdiseasesandincreaseproduction.Harmboththelandandpeople’shealth.Food:lessnutrition,lessessentialminerals,andlessflavour.Itmakesthesoilricherinmineralsandalsokeepstheair,soil,waterandcropsfreeofchemicals,aimingtoavoiddamagetotheenvironmentortopeople’shealth.Organicfarmingisnowherenearabletomeetthehighdemandforfoodaroundtheworld.prosprosconsconsReadforwriting——ExpressionsUseyourownwordstoexplainthewholetextwiththefollowingmindmap.ChemicalFarmingOrganicFarmingwhatbenefitsproblemswhatbenefitsproblemsAuthor’sThinkingThereisstillalongwaytofindasuitablesolutionthat……Farmingwithchemicals,especiallychemicalpesticidesandartificialfertilizers

agreatwayto

fightcropdiseasesandincreaseproduction.Harmboththelandandpeople’shealth.Food:lessnutrition,lessessentialminerals,andlessflavour.Farmingwithoutchemicalsmakesthesoilricherinmineralskeepstheair,soil,waterandcropsfreeofchemicals,

avoiddamagetotheenvironmentortopeople’shealth.Organicfarmingisnowherenearabletomeetthehighdemandforfood

aroundtheworld.Howdidtheauthorconnectthesesupportingdetailstogetherlogically?ReadforwritingFindtheTransitionalWords(過渡詞/連接詞)

however,but,onthecontrary,instead,ononehand…ontheotherhandcontrastillustrateaddinformationcauseandeffectintroduceanewtopicforexample,forinstance,infact,suchas,take…forexampleboth…and…,notonly…butalso,inaddition,and,also,aswell,what’smore,besides,furthermore,moreover,what’sworsewhy…isbecause…,therefore,forthisreason,thus,consequently,asaressultasfor,asanalternativeReadforwritingFindtheTransitionalWords(過渡詞/連接詞)Thinking

Whatistheauthor’sattitudetowardsorganicfarming?A.NegativeB.ambiguousC.objectiveD.supportiveWhatisyouropiniononchemicalororganicfarming?Writeananrgumentativepassageinthenextperiod.Para.1stateyouropinionCurrently,thereisawidespreadconcernovertheissuethat…Asisoftenthecase,…AsfarasIamconcerned,however,…Itcanbesaidwithcertaintythat...Soinmyopinion,…Usefulexpressionsforwritinganargumentativeessay:Para.2supportingpointsanddetailsFirstofall,thereisnodenying/doubtthat...Moreover,….Foronething,…Foranother,…Ashasbeenmentionedabove,...Personally,Iwillconcludebysaying...Therefore,Ihavethereasontobelievethat...Fromwhathasbeendiscussedabove,wemaydrawtheconclusionthat…Para.3givesummary

Ending

Beginning

Body

Topicsentence:

Inmyopinion,________ispreferableto_______because____________.Argument1(Topicsentence)+detail:

Point1:Tobeginwith,___________.(Detail)_______.Point2:What’smore,____________.(Detail)_______.Point3:Finally,_________________.(Detail)_______.Conclusion:Inclosing,Iamfullyconvince