高中英语优质课评比获奖课件 17页

Unit2WorkingthelandUsinglanguage\nsafefoodgreenfood≈organicfoodsafeornot?\ngrowingcropswithnaturalfertilizersratherthanchemicalfertilizersSkimming:Whatis?organicfarming\nScanning（groupwork）:Whyarenaturalfertilizersbetter?Whatproblemsarecausedbyusingchemicalfertilizers?3.Whatspecialwaysoffarmingdoorganicfarmersuse?4.Whydothefarmersdoso?\nWhyarenaturalfertilizersbetter?2.Whatproblemsarecausedbyusingchemicalfertilizers?Scanning（groupwork）:\nWhatorganicfarmersdoWhydoso?Usenaturalfertilizers.Tomakethesoilricher.Changecropsevery2Topreventthesoilfromor3years.gettingexhausted.GrowcropsthatneedTopreventwindorwaterdifferentlevelsofthefromcarryingawaythesoilinbetween.soil.3.Whatspecialwaysoffarmingdoorganicfarmersuse?\nThereisabigpieceoffieldnearyourschool.Theschoolisplanningtogrowsomegreenfoodinthefield.Makeaplanwithyourgroupmembers:Whatgreenfoodtogrowandwhy?Howtodevelopthesoil?Whatspecialwaystogrowit?Whatspecialwaystotakecareofyourcrop?Suppose:\nMakeaposter（海报）:tellpeoplewhatyouaresellingmakepeoplebelieveyourfoodisgoodenoughpersuadepeopletobuyyourfoodmakeyourposterasattractiveaspossible\nHomework:1.Designyourpostersandmakethemmoreattractive.2.Sumupwhatyouhavelearnedinthisunit,includingusefulwords,expressionsandnewgrammaritem.\n\n\nOrganicfarming\n\nAsummary(概括)oforganicfarming:nouseofchemicalfertilizersawayfromindustrialareasawayfromdirtywatersupplynoairpollutionsomespecialwaysoffarmingtousethefoodshouldbehealthyandsafe\n\n吃动物怕激素；吃植物怕毒素；喝饮料怕色素；能吃什么，心里没数。－－－全国人大代表金志国带到两会上的顺口溜\nAquiz:Organicfoodjustreferstovegetablesandfruits.Greenfoodhasacolorofgreen.Greenfoodiscertaintobehealthyandsafe.Organicfoodisfreeofchemicalfertilizers.Organicfoodisgrownawayfromdirtywatersupply.Greenfoodcanbegrownaroundbigpaperfactories.