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ID:52023101
大小:1.79 MB
页数:28页
时间:2020-03-29
《高一英语人教版必修4 Unit 2 working the land usiing language.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、UsingLanguageChemicalorOrganicFarmingWorkingtheland1.出国旅行时很激动人心的。2.在这儿等也没用,咱们走回去吧。3.我记得在哪儿见过他。Travellingabroadcanbeveryexciting.It’snousewaitinghere,let’swalkback.Irememberseeinghersomewhere.5.即使最聪明的孩子,也需要指教。4.我后悔没听你的劝告。Iregretnotfollowingyouradvice.Eventhecleverestchildneedsteaching.Whatdofarm
2、ersusuallyputonthesoiltomakecropsgrowfast?Itisfertilizer.Howmanykindsoffertilizersdofarmersuse?Therearetwokinds.Theyarechemicalfertilizersandnaturalfertilizers.Whichkinddofarmersusewhentheyaredoingorganicfarming?Doyouknowaboutorganicfarming?ORGANICFARMINGOrganicfarmingissimplyfarmingwithoutusin
3、ganychemicals.ReadthepassageUnderlinethetopicsentenceofeachparagraph.HowmanywaysfarmersusetohelpcropsgrowarementionedinthepassageComprehendingLong-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.Farmersandcustomersturntoorganicfarming.Othermethodstokeepthesoilfertile.Proble
4、mscausedbychemicalfertilizers.P1.P2.P3.P4.topicsentencewaystohelpcropsgrowChemicalfertilizersusenaturalwastefromanimalsasfertilizerschangethekindofcropineachfieldeveryfewyearsplantdifferentcropswithdifferentlengthsofrootsplantgrassbetweencropsandthenleaveitinthegroundorganicfarmingchemicalferti
5、lizersadvantagedisadvantageagreatwaytostopcropdiseaseandincreaseproductionlongternuseofthesefertilizerscancausedamageto…problemsdamage__________by___________________________________________________.chemicalsstayin_________________affect_____________________________leadto________________________
6、____thelandkillingthehelpfulbacteriaandpestsandtheharmfulones.thegroundandundergroundwatercropsandanimalsandhumansThechemicals_________________________builduoinpeople’sbodiescancerorotherillessesfruit,vegetablesandotherfoodGrowtoofasttobefullofmuchnutritionorganicfarmingWhatisorganicfarming?Met
7、hodsoforganicfarmingAdvantagesofmethodsFarmersusenaturalwastefromanimals.Thismakesthesoilricherinmineralsandsomorefertile.Thisalsokeepstheair,soil,waterandcropsfreefromchemials.withoutusinganychemicals.MethodsoforganicfarmingAdvan
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