高中英语优质课评比获奖课件

safefoodgreenfood≈organicfoodsafeornot?growingcropswithnaturalfertilizersratherthanchemicalfertilizersSkimming:Whatis?organicfarmingScanning（groupwork）:1.Whyarenaturalfertilizersbetter?2.Whatproblemsarecausedbyusingchemicalfertilizers?3.Whatspecialwaysoffarmingdoorganicfarmersuse?4.Whydothefarmersdoso?1.Whyarenaturalfertilizersbetter?2.Whatproblemsarecausedbyusingchemicalfertilizers?Scanning（groupwork）:WhatorganicfarmersdoWhydoso?Usenaturalfertilizers.Tomakethesoilricher.Changecropsevery2Topreventthesoilfromor3years.gettingexhausted.GrowcropsthatneedTopreventwindorwaterdifferentlevelsofthefromcarryingawaythesoilinbetween.soil.3.Whatspecialwaysoffarmingdoorganicfarmersuse?Thereisabigpieceoffieldnearyourschool.Theschoolisplanningtogrowsomegreenfoodinthefield.Makeaplanwithyourgroupmembers:Whatgreenfoodtogrowandwhy?Howtodevelopthesoil?Whatspecialwaystogrowit?Whatspecialwaystotakecareofyourcrop?Suppose:Makeaposter（海报）:tellpeoplewhatyouaresellingmakepeoplebelieveyourfoodisgoodenoughpersuadepeopletobuyyourfoodmakeyourposterasattractiveaspossibleHomework:1.Designyourpostersandmakethemmoreattractive.2.Sumupwhatyouhavelearnedinthisunit,includingusefulwords,expressionsandnewgrammaritem.Asummary(概括)oforganicfarming:nouseofchemicalfertilizersawayfromindustrialareasawayfromdirtywatersupplynoairpollutionsomespecialwaysoffarmingtousethefoodshouldbehealthyandsafe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Aquiz:1.Organicfoodjustreferstovegetablesandfruits.2.Greenfoodhasacolorofgreen.3.Greenfoodiscertaintobehealthyandsafe.4.Organicfoodisfreeofchemicalfertilizers.5.Organicfoodisgrownawayfromdirtywatersupply.6.Greenfoodcanbegrownaroundbigpaperfactories.