海南华侨中学三亚学校高中英语 unit2 using language学案(无答案)新人教版必修4unit2usinglanguageWritedownthemainidea(主要大意)foreachparagragh.P1.P2.P3.P4.1.Whatproblemsarecausedbyusingchemicalfertilizers?2.Whyarenaturalfertilizersbetter?Readthetextcarefullyandfillintheblanks.ChemicalFarmingAdvantagesStoppingcropdiseaseandincrease________...
unit2usinglanguageWritedownthemainidea(主要大意)foreachparagragh.P1.P2.P3.P4.1.Whatproblemsarecausedbyusingchemicalfertilizers?2.Whyarenaturalfertilizersbetter?Readthetextcarefullyandfillintheblanks.ChemicalFarmingAdvantagesStoppingcropdiseaseandincrease________________ChemicalFarmingDisadvantagesDamagingtheland:killingthehelpful________________Damagingpeople’shealth:◆Manychemicalsinthefoodsupplycanleadtocancerorotherillnesses.◆Foodgrowstoofasttobefullofmuch________.3.Whatspecialwaysoffarmingdoorganicfarmersuse?WhatspecialwaysorganicfarmersdoWhydoso?Usenaturalfertilizers.Changecropseveryfewyears.Growcropsthatneeddifferentlevelsofthesoil.True(T)orFalse(F).1.Organicfarmerspreferusingnaturalwastefromanimalsandchemicalfertilizers.( )2.Usingnaturalwastemakesthesoilricherinmineralsandsomorefertile.( )3.Usingorganicfarmingmethodsistogrowgoodfoodandtoavoiddamagingtheenvironmentorpeople’shealth.( )4.Usingchemicalfertilizershasbecomeverycommoninfarmingoverthepasthalfcentury.( )5.Chemicalfertilizersonlykillharmfulbacteriaandpests.( )Discussion:AdvantagesofgreenfoodTakenotes:*tastedelicious*grownin_________air*freeofp___________*_________nutrition*do_______topeople’shealthandthee___________SummaryWhatdowelearntoday?___________________________________________________________
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