高一英语人教课标必修4Unit2usinglanguage.ppt

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1、Unit2WorkingthelandUsinglanguage(Reading,&Writing)Module4Chemicalororganicfarming?Reading1.Whatisorganicfarming?Organicfarmingissimplyfarmingwithoutusinganychemicals.2.Whatproblemscanbecausedbyusingchemicalfertilizers?1.Theycandamagetheland.2.Theydamagepeople'shealthbybuildin

2、gupintheirbodiesandleadingtocancerorotherillnesses.3.Fruit,vegetablesandotherfoodwithchemicalfertilizersgrowtoofasttobefullofmuchnutrition.Fast-reading2mReadthepassagefastandanswerthefollowingquestionsOrganicFarminggreenmilkGreenfoodCanyouhelpme?Heisaproducerof“greenfood”---h

3、isfoodisfreeofchemicalfertilizersandisgrownawayfromindustrialareasanddirtywatersupplies.Itiscertaintobehealthyandsafeforpeople’shealth.Hewanttosellhis“greenfood”,buttheproblemishowtoletpeopleknowabouthisfoodandhowgooditis.DesignaposterNowpleasetrytodesignaposterforadvertising

4、thesafetyandimportanceofeatinghis“greenfood”.HowtowriteaposterMainheadingThisexplainsthatyousellgreenfood.Reasonstobuy:Reason1:Reason2:Reason3:Reason4:(Conclusions)Whyitisgoodvalue.brief,persuasive,vividnice,creativefourpartsContentLanguageDesignIfyouwanttosellsomething,yoush

5、ouldknowaboutitfirst.Inwhatconditiondoyouthinkgreenfoodgrow?(environment)cleanairgrowGreenfoodisgrowninclearair.cleanwaterirrigateGreenfoodisirrigatedwithcleanwater.awayfrompollutionGreenfoodisawayfromindustrialarea.There’slesspollutioninit.Whataretheadvantagesofgreenfood?

6、chemicalfertilizerfreeof/freefromGreenfoodisfreeof/fromchemicalfertilizers.naturalwastefertilizerGreenfoodusesnaturalwastefromanimalsasfertilizer.VitaminmineralbegoodfortastefreshInwhatconditiondoyouthinkgreenfoodgrow?clean,freshaircleanwatersuppliesawayfromindustrialareasfre

7、eofchemicalfertilizersTheadvantagesofgreenfoodFullofvitmineHealthierandfitterTastesmoredeliciousSafe,freshLet’sfindsomeusefulexpressionsfromthetextonP14.1.Organicfarmingissimplyfarming________________2.Theyfocusonkeepingtheirdiseaseandhelpscropsgrow_______and_______.3.Organic

8、farmers,therefore,oftenprefer______________________________________4