Unit5WorkingtheLandReadingforWriting课件-高二英语人教版选择性

UsingLanguage（ReadingandWriting）Unit5WorkingtheLandEvaluatechemicalfarmingororganicfarmingLearningObjectivesUnderstand

thedifferencesbetweenchemicalandorganicfarmingandtheiradvantagesanddisadvantages;Learnaboutthestructureofanargumentativeessay；Write

anargumentativeessaytoexpressourviewsonchemicalfarmingororganicfarming.Lead-inWhatorganicmeans?Whatorganicmeans?NochemicalfertilisersorpesticidesNogeneticallymodifiedorganismsPrediction

Predictbyanalyzingthetitleandobservingthepictures.1.Whatisthefarmerinthepicturedoing?2.Whatisthefarmerwearing?Why?Spraying(喷洒)chemicalpesticidesonthecrops.Amaskandahat.Maybethechemicalpesticidesareharmfultohealth.Readforthestructure

Matchthemainideawitheachparagraph.Para

1Para

2Para

3Para

4Para

5Whatorganicfarmingis.Theproblemswithchemicalfarming.Someexamplesforthedisadvantagesofchemicalfarming.Organicmethodstoproducerichsoil.Whyman-madechemicalfertilisersarestillusedinfarming.ReadandThink(organization)Title

The_______and_________ofchemicalfarming.benefitsproblemsPart1:(Para1&2)

Whatorganicfarmingisand__________________.howitkeepthesoilrichPart2:(Para3&4)

Part3:(Para5)Conclusion

Q1.Whydidmanyfarmerswelcometheintroductionofchemicalfarming?Q2.Whatconcernsmanypeopleabouttheuseofpesticides?Q3.Howisorganicfarmingdifferentfromchemicalfarming?Q4.Whydoorganicfarmerschangethekindofcropgrowninafieldeveryyear?(para.1)Becausetheyseeitasagreatwaytofightcropdiseaseandincreaseproduction.(para.1-2)Theirlong-termusecansometimesharmboththelandandpeople'shealth.(para.3)Itdoesn'tuseanychemicals.(para.4)Toproducerichsoil--differentcropsputimportantmineralsbackintotheground,makingitreadyforthenextbatchofcrops.Readandanswerquestions

Readforthecontent--Readandfill

AdvantagesDisadvantagesOrganicFarmingfightcropdiseaseincreaseproductionkillharmfulbacteriaandinsectscropslookbeautifuloutsideproducericherfieldshealthyfood-freeofchemicalsavoiddamagetotheenvironmentortopeople'shealth......harmthelandandenvironmentharmpeople’shealth-causecancerkillhelpfelinsectscropsarelessinnutritionlessflavourcannotmeetthedemandforfood......ChemicalFarmingHowtowriteanargumentativeessay?WritingTask近年来，媒体对“农业可持续发展”“食品安全”等问题作了一些报道，引发了许多讨论，化学种植和有机种植哪种有利于农业可持续发展并解决食品安全问题呢？请用英语写一篇议论文，表达自己的观点，并说明理由。Whatotheradvantagesanddisadvantagesofchemicalandorganicfarmingtheauthordidnotlist?Pleaseaddmore.advantagesdisadvantageschemicalorganiclowercostscropslookbeautifuloutsideecologicalbalancefoodsafetyecologicaldamagefoodsafetyriskssmellygasesBrainstormmoreeffortsandhighercostStructureThehotissueP1P2Thedisadvantage(s)Theadvantage(s)P3Thewriter'sopinion——thearguments（论据）&supportingexamples（例子）——theconlusion（结论）——themainidea

（论点）一、正反对比式议论文结构EndingBeginning

BodyAnargumentativeessayTopicsentence:Inmyopinion,________farmingispreferableto_______farmingbecause____________.Argument1(Topicsentence)+detail:

Point1:Tobeginwith,______________.(Detail)_______.Point2:What’smore,_______________.(Detail)_______.Point3:Finally,_______________.(Detail)_______.Conclusion:Inclosing,Iamfullyconvincedthat__________________.Structure1.提出讨论的话题最近我们讨论了要不要发展有机耕作。看法因人而异。Recently

⁠organic

farming.

⁠.weheldadiscussionaboutwhethertodevelop

Opinionsvaryfrompersontoperson

2.介绍反方观点及理由①很明显，使用化肥有很多缺点。Itisobviousthatusingchemicalfertilisers

⁠.②最重要的是，留在作物内部的化学物质会导致癌症或其他疾病。Aboveall，thechemicalsstayinginsidethecrops

⁠

⁠.hasmanydisadvantages

canleadtocancer

orotherillnesses

3.介绍正方观点及理由①随着人们越来越富裕，他们非常重视健康。Aspeoplearebecomingricher，

⁠

⁠.②有机农产品只需使用天然肥料，使蔬菜和水果既美味又有营养。Organicproducesimplyusesnaturalfertilisers，

⁠

⁠andnutritive.theyattachgreatimportanceto

health

makingvegetables

andfruittasty

4.介绍自己的观点健康是第一财富，所以选择有机食品更明智。

Astheoldsayinggoes，healthisthefirstwealth，soitiswiserto

chooseorganicfood.

WritingTask近年来，媒体对“农业可持续发展”“食品安全”等问题作了一些报道，引发了许多讨论，化学种植和有机种植哪种有利于农业可持续发展并解决食品安全问题呢？请用英语写一篇议论文，表达自己的观点，并说明理由。

FunctionTransitionalwordsContrastIllustrate（说明）AddinformationCauseandeffect(因果)Introduceanewtopichowever,but

forexample,forinstance,infact,both…and…,notonly…butalso,inaddition,and,also,aswell,

why…isbecause…,therefore,asfor,asanalternativeonthecontrary,instead,ononehand...ontheotherhandsuchas,take…forexamplewhat’smore,besides,furthermore,moreover,what’sworse

forthisreason,thus,consequently,asaressultUsefulExpressionsexpressyouropinions:Inmyopinion,....AsfarasI’mconcerned,....Frommypointofview,…I’minfavourof....I’magainst/opposedto..Ifirmlybelievethat…makeaconclusion:Inshort,....Inaword,…Allinall,…Inconclusion,....Tosumup,…Exchangeyourdraftwithyourpartner

(1)Usethechecklisttohelpyoureviewyourpartner'sdraft.

✓Doesthewriterdoagoodjobofexpressinghis/heropinion?✓Doeseachparagraphhaveonemainidea?supportitsmainidea?✓Doesthewritersequencethepointsinalogicalorder?Arethereanyconnectivesintheessay?✓Doesthewriteruseanysubjectclauses?✓Doesthewriterdoagoodjobpersuadingyoutoaccepthis/heropinion?✓Doesthewriterusecorrectgrammar,punctuation,andspelling?Assignment

1.Polishyourownargumentativeessaygivingopiniononchemicalororganicfarming.2.Project—makeaposterofyourfavorabledish,fromfieldtoplate.(Optional)Thankyou!Inmyopinion,organicfarmingispreferableto

chemicalfarmingbecause

ithassome