Unit5UsingLanguageReadingforWriting課件高中英語人教版選擇性

ReadingforWritingEvaluatechemicalfarmingandorganicfarming01請?zhí)鎿Q文字內(nèi)容，添加相關標題，修改文字內(nèi)容，也可以直接復制你的內(nèi)容到此。請?zhí)鎿Q文字內(nèi)容，添加相關標題，修改文字內(nèi)容，也可以直接復制你的內(nèi)容到此。點擊請?zhí)鎿Q文字內(nèi)容請?zhí)鎿Q文字內(nèi)容，添加相關標題，修改文字內(nèi)容，也可以直接復制你的內(nèi)容到此。請?zhí)鎿Q文字內(nèi)容，添加相關標題，修改文字內(nèi)容，也可以直接復制你的內(nèi)容到此。點擊請?zhí)鎿Q文字內(nèi)容1.Whatkindoffertilizersdofarmersuseforfarming?ChemicalfertilizersNaturalwastefromanimalsLeadinginChemicalfarmingChemicalfarming1.Whatisthetextmainlyabout?

picturestitle3.Whattypeofwritingisthispassage?A.Description B.ExpositoryC.ArgumentationD.Narration2.Let’slearnfromthetitleandpictures:2.Whatisthefarmerdoinginthepicture?Sprayingchemicalpesticidesonthecrops.It’saboutChemicalandorganicfarming.Scanning1.Scanthetextquicklytofindout:whatischemicalfarmingandwhatisorganicfarming?Organicfarmingissimplyfarming____________________.Chemicalfarmingisfarmingwith_________,especially_________________and_______________.chemicalschemicalpesticidesartificialfertilizerswithoutusingchemicalsversusReadforthemainideas2.Readthetextfasttomatchthemainideas(A-D)belowwiththeparagraphs.ParagraphMainidea1-2345BCADA.WhatorganicfarmingisB.Whyman-madechemicalsarestillusedinfarmingC.OrganicmethodsforproducingrichsoilD.TheproblemswithchemicalfarmingDetailedReading1.Readeachparagraphtoanswerconnectedquestions.2.Whatconcernsmanypeopleabouttheuseofpesticides?Theirlong-termusecansometimesharmboththelandandpeople’shealth.P2:Forexample，pesticidescandamagethelandbykillingnotonlyharmfulbacteriaandinsects，butalsohelpfulones.Inaddition，thesechemicalscanstayinthesoilandundergroundwatersourcesforalongtime.Thisaffectsthecropsgrownonthelandand,inturn，theanimalsandhumanswhodigestthem．Manypeopleworrythatthesechemicalsmaymakethemillandevencausecancer.Infact，somepesticideslikeDDThavebeenprohibitedinmostcountriesbecauseofthedamagetheycausetopeopleandtheenvironment.Asforchemicalfertilisers，cropsgrownwiththemusuallygrowtoofasttoberichinnutrition.Theymaylookbeautifulontheoutside，butinsidethereisusuallymorewaterthanessentialminerals，andtheyoftenhavelessflavouraswell.3.Whatisoneproblemwiththeuseofchemicalfertilisers?Cropsgrownwiththemusuallygrowtoofasttoberichinnutrition.P3:Asanalternative，somefarmershaveswitchedtoorganicfarming，andmanycustomershaveturnedtoorganicfoodwhentheyshopatthelocalgrocery.Organicfarmingissimplyfarmingwithoutusinganychemicals.Organicfarmersfocusonkeepingtheirsoilrichandfreeofdiseasethroughnaturalmeans.Forexample，manyorganicfarmersusenaturalwastefromanimalsasfertiliser.Thismakesthesoilintheirfieldsricherinminerals.Italsokeepstheair，soil，water，andcropsfreeofchemicals.4.Howisorganicfarmingdifferentfromchemicalfarming?Organicfarmingissimplyfarmingwithoutusinganychemicals.Organicfarmersfocusonkeepingtheirsoilrichandfreeofdiseasesthroughnaturalmeans.P4:Organicfarmersalsousemanyothermethodstoproducerichsoil.Theyoftenchangethekindofcropgrownineachfieldeveryyear.Forinstance，theymaygrowcornorwheatinafieldoneyear，andthengrowbeanstherethenext.Whydifferentcropsaregrownisbecausetheyputimportantmineralsbackintotheground，makingitreadyforthenextbatchofcrops.Organicfarmersalsoplantdiversecropsthatusedifferentdepthsofsoiltohelpkeepitrich.Forexamplepeanutsgrowontheground'ssurface，butmanyothervegetablesputdowndeeproots.Thegoalofusingdifferentorganicfarmingmethodsistogrowgoodfoodwhileavoidingdamagetotheenvironmentortopeople'shealth．5.Whydoorganicfarmerschangethekindofcropgrowninafieldeveryyear?Differentcropsaregrownbecausetheyputimportantmineralsbackintothegroundmakingitreadyforthenextbatchofcrops.6.Whatisthegoalofusingorganicfarmingmethods?Thegoalofusingorganicfarmingmethodsistogrowgoodfoodwhileavoidingdamagetotheenvironmentortopeople'shealth.P5:Somepeoplewouldprefertostoptheuseofman-madechemicalsinagricultureentirely.Whatkeepsthemfromdoingsoisthefactthatchemicalfarmingservesthehighdemandforfoodaroundtheworld.Organicfarmingisnowherenearabletomeetthatneed.Therefore，thereisstillalongwaytofindasuitablesolutionthatputssufficientfoodonthedinnertablewhilekeepingpeopleandtheenvironmentashealthyaspossible.7.Doyouthinkthegoalofusingorganicfarmingmethodscanbereached?Whyorwhynot?Yes,Ithinkthisgoalcanbereached

becausepeopletendtoliveagreenandhealthylifeandtheyneedorganicfarmingtodevelop.ParagraphDetail1-2Pesticides?can?kill?helpful

.Some?pesticides?have?been____________becauseofthe

.Crops?grown?with?chemical?fertilisers?usually

tobefullof

.3Many?organic?farmers?use

asfertiliser.4They?often___________________grownineachfield__________.Theyalsoplantdiversecropsthatuse______________ofsoiltohelpkeepitrich5Organicfarmingisnowherenearabletomeetthehigh________________________________.bacteriaandinsectsprohibiteddamagetheycausegrowtoofastnutritionnaturalwastefromanimalsdifferentdepthsdemandforfoodaroundtheworldchangethekindofcropeveryyear

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,asanalternative3.Learntheuseofsignpostersandtransitionalexpressions.Summary1.Summarizethestructureofthepassage.The_______and_________ofchemicalfarming.

benefitsproblemsPart1:(Para1&2)Whatorganicfarmingisand__________________.howitkeepthesoilrichPart2:(Para3&4)Part3:(Para5)ConclusionFarmingBenefit

ProblemSolutionChemicalfarming

Organicfarming2.The“Benefits—Problems—Solutions”logicalpatterntointroducechemicalfarmingandorganicfarming.fightcropdiseaseandincreaseroductionsometimesharmboththelandandpeople’shealthswitchtoorganicfarmingmakethesoilrich;keeptheair,soil,waterandcropsfreeofchemicalscannotmeettheneedstillalongwaytofindasuitablesolutionWriting1.Structureofanargumentativeessay:

(Para.1)(Para.2)AnargumentativeessayYouropinionSupportingpoint2(Para.3)Supportingpoint3Supportingpoint1IntroductionBodyConclusionSummaryTitleDetailsDetailsDetailsPara.1stateyouropinionCurrently,thereisawi