课件高一人教修订下Unit 19.ppt

ModernAgriculture,Unit19Reading,TeachingAims:1.Enablethestudentstolearnsth.aboutmodernagriculturefromthetext.2.Getthestudentstohavetheabilitytograspthegeneralidea.3.Improvethestudentsabilityinreadingandunderstanding.,RevisionandLeadin,Whataretherelationsbetweenthem?,Eatinghabitsaffectthechangesinagriculturalproduce,atthesametimethedevelopmentofagriculturehaseffectsonnature.,Pre-reading:Lookatthepicturesandcomparetraditionalandmodernfarming.,Twochickensarewalkingandeatingfreelyintheyard.,Thousandsofchickensareraisedinsmallcagesinalargebuilding.,animalshit-naturalfertilizer,Twobagsofchemicalfertilizer,Afarmerisusinganoxtoploughtheland.,Atractorisploughing.,Thelandissodryandpoorthatnothingcangrowthere.,Plantsgrowinabuildingmadeofglass-greenhouse.,Conclusion,Piictures1-4showuswhattraditionalagricultureislikeandPictures5-8showuswhatmodernagricultureislike.,Inthepast,farmersgrowcropsinthetraditionalway.Usingcattletoploughthefield.farmersworkmostofthedayallyeararound,buttheycouldnotproduceenoughfoodforthewholepopulation.Atpresent,theyusemoderntechniquesintheirfieldstoimproveagriculturalproductionsuchaschemicalfertilizers,greenhousesandsoon.Greatchangeshavetakenplaceinagriculture.,Reading:FastreadingReadthetextquicklyandsilentlyandanswerthefollowingquestions:,HowmuchlandcanbeusedforfarminginChina?Whatshouldfutureagriculturedependon?,Only7%ofthelandcanbeusedforfarminginChina.,Futureagricultureshoulddependonhightechnologyaswellastraditionalmethods.,Questions:,3.WhatdoesGMmean?4.Howmanyunusualwaysarementionedtodealwiththeshortageofarableland?,“G”standsfor“genetically”,“M”standsfor“modified”.,Two(Growvegetablesingreenhouses;GM),Paragraph1Sinceearly1990sscientistsstartedtodevelopnewenvironmentaltechniques.Paragraph2TraditionalagricultureinChinaonlychangedalittle.Paragraph3Manyotherplantsaregeneticallymodified.Paragraph4Manyfarmingtechniqueshavebeenmodernized.Paragraph5Greenhousesareused.Paragraph6GMisused.,Carefulreading:Findoutthemainsentenseineachparagraph.,Languagepoints:,1.It+be+强调部分+that(人物可用who/whom)+句子其他部分.ThefarmersproducefoodonthisarablelandforthewholepopulationofChina.Itisthefarmerswho/thatproducefoodonthisarablelandforthewholepopulationofChina.ItisfoodthatthefarmersproduceonthisarablelandforthewholepopulationofChina.ItisthewholepopulationofChinathatthefarmersproducefoodonthisarablelandfor.,1.Tomakeasmuchuseofthelandaspossible,twoormorecropsareplantedeachyearwherepossible.为了充分利用土地，在有条件的地方，每年种植两季以上的庄稼。,asaspossible尽可能你有必要尽可能快地把信寄出去。尽可能多喝水,对身体有好处。,Itisnecessaryforyoutosendtheletteroffassoonaspossible.,Itisgoodforyourhealthtodrinkasmuchwateraspossible.,2.where(itis)possible状语从句的省略Completethepassagewitha;an;thewherenecessary.在需要的地方填上单词。可能的时候来看看他。,Fillintheblankswithwordswherenecessary.Cometoseehimwhenpossible.,4.Futureagricultureshoulddependonhightechnologyaswellastraditionalmethods.将来的农业不但依靠传统方法，而且还要依靠高科技。dependon依靠Eg:该国家要依赖外援。健康的身体取决于好的饮食习惯aswellas也；而且Eg:Tom既聪明又健康。,Thiscountrydependsheavilyonforeignaid.,Tomiscleveraswellashealthy.,Post-readingReadthetextcarefullyandchoosethebestanswers:,InChinaonlysevenpercentofthelandisusedforfarming.Thisis_.AbecausefarmersdontneedmorelandtoproducefoodforthewholepopulationBbecauseChinaneedsmoreandmorelandtobuildcitiesCbecausetherearenotenoughfarmerstoworkonthelandDbecausetheotherlandcannotbeusedforagriculture2.Fertilisationisatechniquethatisusedto_.A.makepoorsoilbetterB.makewetlanddrierC.makedrylandwetterD.growvegetableswiththeirrootsinwaterinsteadofearth,D,A,3.Modernagriculturemeansfindingwaysto_.A.increaseirrigationandstopusingfertilisersB.stopirrigationandusingfertilisersC.increaseproductionandbefriendlytotheenvironmentD.producethesameamountwhiletakingbettercareofnature4.Inthesentence.theyareprotectedfromthewind,rainandinsects,theymeans_.A.greenhousesB.rootsC.vegetablesD.tomatoes5.InGMMstandsformodified,whichmeanschanged.Whatchangesis_.A.thewayinwhichpoorsoilismadebetterB.thewayinwhichChinesefarmersworkontheirlandC.thewayinwhichcropsdevelopfromseedD.thewayinwhichfarmerstakecareoftheenvironment,C,C,C,ConsolidationListentothetapeandfillintheblankswithproperwordsaccordingtothepassage.,Withthedevelopmentofm_agriculture,farmersarerealizingmoreandmoretheimportanceofprotectingnature.Sincetheearly1990s,scientistshavebeentryingtodevelopnewt_toincreaseagriculturalp_andprotectthee_atthesametime.Somec_canhelptoproducebettercropsbutareveryh_toourenvironment.Somehaveaverygoode_onremovingweedsbuttheydamagecropsatthesametime.Sonewtechniquesshouldnotonlyhelpincreaseproductionbutalsobef_totheenvironment.Weshoulddependonhightechnologyandt_methodsaswelltodevelopouragriculturebecausefoodproductionandtakingcareoftheenvironmentareofthesamei_.,odern,echniques,roduction,nvironment,hemicals,armful,ffect,riendly,raditional,mportance,DiscussionHowcanwedevelopmodernagriculturetomeetthechangeofpeopleseatinghabitswithoutdestroyingordamagingtheenvironment?,Modernagricultureshouldnotgoagainstnature.WecandevelopEco-agriculture.3.Uselesschemicalfertilizers,pesticide.4.Protectthesoilfrombeinglost.Improvethesoilconditions.5.Growdifferentplantsindifferentareas.,Summary,Thetexttellsussomethingaboutthesituationofagricultureofourcountry.Forexample,itspastandpresent,especial