M4 U2 Using language1

《M4 U2 Using language1》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、人教课标版高一必修4Unit2英语课件ReadingonP14Whatisthesubstanceweputonthesoilwhichmakescropsgrow?Itisfertilizer.Howmanykindsoffertilizersdofarmersuse?Therearetwokinds.Theyarechemicalfertilizersandnaturalones.Whichkinddofarmersusewhentheyaredoingorganicfarming?Doyouknowaboutorganicfarming?ORGANI

2、CFARMINGOrganicfarmingissimplyfarmingwithoutusinganychemicals.1.Whyarechemicalfertilizerssopopularinfarmingtoday?I.Readthepassageandanswerthefollowingquestions.Theyareagreatwaytostopcropdiseaseandincreaseproduction.Comprehending2.Whatproblemscanbecausedbyusingchemicalfertilizers?T

3、heycandamagethelandbykillinghelpfulbacteriaandpestsandbystayinginthegroundandundergroundwaterforalongtime.Theydamagepeople’shealthbybuildingupintheirbodiesandleadingtocancerorotherillnesses.3.Whatisorganicfarming?Organicfarmingmeansgrowingcropswithoutusinganychemicals.4.Whatisthem

4、ainreasonforusingorganicfarmingmethods?Themainreasonforusingorganicfarmingmethodsistogrowgoodfoodandtoavoiddamagingtheenvironmentorpeople’shealth.II.Readthetextagainandfillintheblanks.ChemicalFarmingAdvantagesStoppingcropdiseaseandincrease__________productionChemicalFarmingDisadva

5、ntagesDamagingtheland:killingthehelpful________________Damagingpeople’shealth:◆Manychemicalsinthefoodsupplycanleadtocancerorotherillnesses.◆Foodgrowstoofasttobefullofmuch________.bacteriaandpestsnutritionOrganicfarming____Togrowgoodfoodandavoiddamagingtheenvironmentorpeople’shealt

6、hGoalOrganicfarmingMethods◆Using_______wastefromanimalsasfertilizer◆Changing______________ineachfieldeveryfewyears◆Using_____________ofsoiltoplantcrops◆Planting_____betweencropsgrassnaturalthekindofcropdifferentlevelsInwhatconditiondoyouthinkgreenfoodgrow?Theadvantagesofgreenfoodd

7、irtyairdirtywatersuppliesinindustrialareasmanychemicalfertilizersclean,freshaircleanwatersuppliesawayfromindustrialareasfreeofchemicalfertilizersMainideaofthepassageChemicalfertilizerscancausemanyproblems,soorganicfarmingisbecomingmorepopular.ORGANICFARMINGStructureofthetextIusing

8、chemicalfertilizersforalongtimeca