高中英语(m4)教学资料-u2oganicfarming.ppt

Part 3.I.DAABD ADBAD BCBAD CDDII.1.Thanks to/Because of 2.freedom 3.four times as high 4.is certain/sure to 5.Getting up early is 6.with the hope of III.1.a the 2.grow 改为改为growing 3.feed 前加前加to 4.country 改为改为countries 5.another改为改为 other 6.why改为改为that 7.kind改为改为 kinds 8.especial 改为改为 especially 9.most 前加前加the 10.in去掉去掉CHEMICALORORGANICFARMING?Unit2UsingLanguageReadingonP.14Lookatthetitleandpictureandpredictthecontent.Whatdoweputonthesoiltomakescropsgrowbetter?Itisfertilizer.Howmanykindsoffertilizersdofarmersuse?Therearetwokinds.Theyarechemicalfertilizersandnaturalones.Chemical farming is farming by using _ _to stop crop disease and increase production.Organic farming is simply farming _ _ _ _.What is chemical farming?What is organic farming?chemical fertilizerswithout using any chemicals.1.Whyarechemicalfertilizerssopopular2.infarming?3.2.Whatproblemscanbecausedbyusing4.chemicalfertilizers?3.Whatisthemainreasonforusingorganicfarmingmethods?1.Whyarechemicalfertilizerssopopularinfarmingtoday?Becausefarmerswelcomedthemas_tostopcropdiseaseandincreaseproduction.agreatwayLong-termuseofthesechemicalfertilizerscan_and_topeopleshealth.causedamagetothelandmoredangerousParagraph 1Paragraph 22.Whataretheproblemscausedbychemicalfertilizers?First,they_.Second,chemicalsalsostay_.Thesechemicalscan_.Third,fruit,vegetablesandotherfoodgrownwithchemicalfertilizersusually_.Theylook_.foralongtimeleadtocancerorgrowtoofasttobefullofmuchnutritionbeautifuldamagetheland3.Whatisthemainreasonforusingorganicfarmingmethods?Themainreasonforusingorganicfarmingmethodsisto_andto_or_.growgoodfoodavoiddamagingtheenvironmentpeopleshealthAsummaryInrecentdays,scientistshavediscoveredthat_chemicalfertilizersforalongtimecanhurtthelandandalsopeopleshealth.Thereareseveralproblems_bychemicalfertilizers.They_theland,_inthegroundandundergroundwaterforalongtimeandgetintopeoplesbodiesthroughtheir_.Organicfarmingisbecomingmorepopular_someusingcauseddamagestayfoodwithfarmersandmanycustomersafterthesediscoveriescameout.Organicfarmingdoesnotuseany_.Organicfarmersusemany_tokeepthesoilfertile.Allofthesemethodstrytoproducegoodfoodand_causingdamagetotheenvironmentorpeopleshealth.chemicalsmethodsavoidTranslation1.长期使用长期使用2.化肥化肥3.给造成损害给造成损害4.将洗掉将洗掉5.逐渐增强逐渐增强6.导致导致7.有机耕作有机耕作8.集中于集中于9.使免受使免受long-termusechemicalfertilizerscausedamagetowashoffbuildupleadto/resultinorganicfarmingfocusonkeepfreefrom10.保持土壤肥沃保持土壤肥沃11.每隔几年每隔几年 12.防止水土流失防止水土流失keepthesoilfertileeveryfewyearspreventwindorwaterfromcarryingawaythesoil1.WhatotherWhatotherwayswayscanbeusedtocanbeusedtoincreaseincreaseproductionproduction?2.Whatother2.Whatothermethodsmethodscanbeusedforcanbeusedfororganicorganicfarmingfarming?Discussioningroupsof4.Onewritesdown,andthenreports.a.Watertheplantswitha.Watertheplantswithcleancleanwater.water.b.Leavetheb.Leavetheearthearthinitsnaturalstateaftertheharvest.initsnaturalstateaftertheharvest.c.Growcropswithoutc.Growcropswithoutpesticidespesticidesd.Growd.Growawayfromawayfromindustrialareas.industrialareas.e.Keepanimalse.Keepanimalsfreeoffreeofdrugs.drugs.A.Animalwasteb.UsepesticideA.Animalwasteb.Usepesticide pestisaidn.pestisaidn.农药农药农药农药c.Irrigateintimed.Plantattherighttimec.Irrigateintimed.Plantattherighttimee.Choosethebestseedse.Choosethebestseedsf.f.GMfoods(genetically-modified)ListeningThisistheVOASpecialEnglishWhatisitabout?ListeningThisistheVOASpecialEnglishAgricultureReport.AgriculturalscientistsinSwitzerlandhavedemonstrated论证论证论证论证the_effectsoforganicfarmingmethods.Organicfarmsusenoman-made_toincreasecropsorcontrolinsectsanddisease.Thestudyshowedthat_fieldsproducedfewercrops,onaverage,thanotherfields.However,thescientistssaytheorganic_improvedthe_ofthesoilandusedhalfasmuchenergy.long-termchemicalsorganicmethodshealthUnderlineusefulphrases1.overthepasthalfcentury2.increaseproduction3.damagetheland4.buildup5.leadto6.withoutusinganychemicals7.focuson8.reducedisease9.growstrongandhealthy10.useas11.richin12.keep.freefrom13.everyfewyears14.carryawayWriteasummarychemical fertilizers popular becausescientists have discovered some problemsNow organic farming use many kinds of methods All these methods try to Homework Writethesummaryandhandthemin.Organic FarmingHowmanykindsoffertilizersdofarmersuse?Therearetwokinds.Theyarechemicalfertilizersandnaturalones.Main idea of the passageChemicalfertilizerscancausemanyproblems,soorganicfarmingisbecomingmorepopular.ORGANICFARMINGStructure of the textIusingchemicalfertilizersforalongtimecanhurtthelandandalsopeopleshealthIIProblemcausedbychemicalfertilizers1.Damage the land by killing the helpful bacteria and pests as well as the harmful ones2.Lead to cancer or other illness.3.Food grown with chemical fertilizers look beautiful,but inside there is usually more water than vitamins and minerals.Organicfarmingisbecomingmorepopularwithsomefarmersandmanycustomersafterthesediscoveriescameout.IVOthermethodstokeepthesoilfertile.Step 1:ReviewStep 1:ReviewWhatcanyousayaboutthesetopics?Working the land土地耕作土地耕作Yuan LongpingWorking the land土地耕作土地耕作80%Theirwaysoffarmingalsoimprovesalot.Chemicalfertilizers-focusonorganicfarming-prefer土鸡蛋土鸡蛋nativeeggs土猪肉土猪肉localmeatCropsSuperhybridriceCountrysidetourhousesHowmuchdoyouknowaboutYuanLongping?increaseproductionchemicalfertilizerfocuson