Unit 5 Reading for Writing 課件【高效課堂+備課精研】 高中英語(yǔ)人教版（2019）選擇性必修第一冊(cè)

Unit5WorkingtheLandEvaluatechemicalfarmingandorganicfarmingReadingforWritingTounderstandthedifferencesbetweenchemicalandorganicfarmingandtheiradvantagesanddisadvantages;Tolearnaboutthestructureofargumentativeessay;Towriteanessaytoexpressyourviewsonchemicalfarmingororganicfarming.LearningObjectiveStep1

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inWhatmakesplantsgrowbetter?ChemicalfertilizersNaturalwastefromanimalsdocerID:4610637Toprotectthecrops,farmershavetokillofftheharmfulpests.Farmerswillusepesticidestokillpestsorinsects.ChemicalFarmingStep1

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inOrganicFarmingOrganicfarmingissimplyfarmingwithoutusinganychemicals.Step1

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inWhichtomatoesdoyouprefer?5yuan/kg30yuan/kgNormaltomatoesOrganictomatoesStep1

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inChemicalFarmingVersusOrganicFarmingStep2

ReadingReadforstuctureSkimthepassageandmatchthemainideas(A-D)withtheparagraphs.AWhatorganicfarmingisBWhyman-madechemicalarestillusedinfarmingCOrganicmethodsforproducingrichsoilDTheproblemswithchemicalfarmingPara1-2Para3Para4Para51.Whydidmanyfarmerswelcometheintroductionofchemicalfarming?2.Whatconcernsmanypeopleabouttheuseofpesticides?3.Whatisoneproblemwiththeuseofchemicalfertilisers?4.Howisorganicfarmingdifferentfromchemicalfarming?5.Whydoorganicfarmerschangethekindofcropgrowninafieldeveryyear??6.What'sthegoalofusingorganicfarmingmethods?Doyouthinkitcanbereached?Whyorwhynot?Readforinformation1.Whydidmanyfarmerswelcometheintroductionofchemicalfarming?

Manyfarmerswelcomedthemasagreatwaytofightcropdiseaseandincreaseproduction.Advantage:2.Whatconcernsmanypeopleabouttheuseofpesticides?

Theirlong-termusecansometimesharmboththelandandpeople’shealth.Disadvantages:3.Whatisoneproblemwiththeuseofchemicalfertilisers?

Cropsgrownwiththemusuallygrowtoofasttoberichinnutrition.Disadvantage:4.Howisorganicfarmingdifferentfromchemicalfarming?

Organicfarmingissimplyfarmingwithoutusinganychemicals.Organicfarmersfocusonkeepingtheirsoilrichandfreeofdiseasethroughnaturalmeans.5.Whydoorganicfarmerschangethekindofcropgrowninafieldeveryyear?Differentcropsaregrownbecausetheyputimportantmineralsbackintotheground,makingitreadyfornextbatchofcrops.6.What'sthegoalofusingorganicfarmingmethods?Doyouthinkitcanbereached?（Para4）

Thegoalofusingdifferentorganicfarmingmethodsistogrowgoodfoodwhileavoidingdamagetotheenvironmentortopeople'shealth.Advantage:FarmingBenefit

ProblemSolutionChemicalfarming

OrganicfarmingTheauthoruses“Benefits—Problems—Solutions”tointroducechemicalfarmingandorganicfarming.Finishthetableaccordingtothepassage.fightcropdiseaseandincreaseproductionsometimesharmboththelandandpeople’shealthswitchtoorganicfarmingmakethesoilrich;keeptheair,soil,waterandcropsfreeofchemicalscannotmeettheneedstillalongwaytofindasuitablesolutionStep3

WritingWriteanargumentativeessaygivingyouropiniononchemicalororganicfarming.發(fā)表議論就是通過(guò)議論或說(shuō)理來(lái)表達(dá)作者的見(jiàn)解和主張，作者對(duì)某一問(wèn)題持有一種看法，為了使讀者同意自己的看法，提出若干理由，試圖說(shuō)服別人。發(fā)表議論時(shí)，我們要注意三個(gè)要素：論點(diǎn)、論據(jù)、論證。該類(lèi)文章一般分為三部分：第一部分：開(kāi)門(mén)見(jiàn)山，說(shuō)明