周生发公开课

Unit2Workingtheland

LeaningAims:1.Leaningsomethingaboutchemicalfarmingandorganicfarming

2.WritingapassageabouthowtoplantvegetablesforafarmerPicturesAppreciation

Whatisthesubstanceweputonthesoilwhichmakescropsgrow?

Itisfertilizer.

Howmanykindsoffertilizersdofarmersuse?

Therearetwokinds.Theyarechemicalfertilizersandnaturalones.

Whichkinddofarmersusewhentheyaredoingorganicfarming?Doyouknowaboutorganicfarming?ORGANICFARMING

Organicfarmingissimplyfarmingwithoutusinganychemicals.Mainideaofthepassage_________________cancausemanyproblems,so___________________isbecomingmorepopular.ChemicalfertilizersorganicfarmingReadingChemicalorOrganicFarming

StepⅠ

Preview

CheckingOthermethodstokeepthesoilfertile.

Farmersandcustomersturntoorganicfarming.Long-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.Problemscausedbychemicalfertilizers

StepⅡ

Skimming&ScanningMainideasP1.P2.P3.P4.

1.Whatisorganicfarming?

Itis

farmingwithoutusingchemicals.2.Whatischemicalfarming?

Itis

farmingbyusingchemicals.

3.Whatistheaimofusingorganicfarmingmethods?

Togrowgoodfoodandavoiddamagingtheenvironmentorpeople’shealth.DetailedReadingⅠStepⅢ.1.WhichstatementisWRONGaccordingtothetext?______A.Allcropsareorganic.B.Recently,theterm“organicfarming”hasgainedanothermeaning.C.Allfarmersusefertilizers.D.Scientistsbelievesomechemicalfertilizersarebetterforpeople.Choosethebestanswer.

DDetailedReadingⅡ2.Whichisnotthereasonwhyorganicfarmersprefernaturalwastefromanimals?______A.Itcankeepthefoodfreefromchemicals.B.Itcankeeptheair,soilandwaterfreefromchemicals.C.Itcankillharmfulpests.D.Itcanmakethesoilricherinmineral.C3.Whatistheadvantageofusingchemicalfertilizers?______

A.Leavingchemicalsinthegroundforalongtimeisgoodforwatersupply.B.Theycangetthesoilexhausted.C.Theycankillhelpfulbacteria.D.Theycankillharmfulpest.D

4.Theorganicfarmersdothefollowingsexcept______.A.addingfertilizerswhichisrichinmineralB.changingcropseverytwoorthreeyearsC.plantingseedsindifferentlayersofthesoilD.plantinggrassbetweencropstopreventthesoilfrombeingblownawayA

1.Haveyoueverbeentothecountryside?2.Doyouknowhowtoworkonafarm?

StepⅣ:Writing

Let’sgotothefarm!QQ-farmpeanutricecornwatermelonapplefarmingsoilfoodclimateremovesowploughharveststorekilloffselect…

sellsunnycloudyflooddroughtsnowstorm…richpoor/barrenwet…sorghumdryhardlooseFirst,buyorselecttheseedsfromthestore.Second,weneedtoploughorturnoverthesoil.Third,wesowtheseedsinthesoil.Finally,wecanharvestourgrain/sorghum/peanuts.Inordertoimprovetheoutputofthecrop,weneedtoridthesoiloftheweed,waterthecrop,fertilizethesoilandkilloffthepest.waterthecropridthesoiloftheweedfertilizethesoilkilloffthepesttoimprovetheoutputofthe

crop

Writing

请根据这节课所学到的知识，围绕HowToPlantVegetables这一话题写一小短文.开头已为你写好。

Inspring,farmersoftenplantsomevegetables,suchascabbage,tomato,potato,cucumber,radish,eggplantandsoon.Usuallytheproceduresasfollows.____________________________________________________________________________________________________________________

d

1．首先，在播种之前，农民会耕地并且从商店购买蔬菜种子。Firstly,farmers____________________________________beforerowingseeds.2．其次，农民会及时地把种子播进土壤里并浇水。Secondly,they___________________________________.3．几天之后，许多小苗从土里钻出来了。慢慢地小苗长得大了些，高了些。Severaldayslate,theseedlings_____________________________.Gradually,theseedlings_____________________________.【句式结构与思路点拨】

4．第三，农民们开始为蔬菜除草和施肥,并定期浇水。Thirdly,farmers____________________________________，andwaterthemregularly.5．在之后的日子里，蔬菜会经历风吹雨打，农民会及时地予以照顾。Inthefollowingperiod,vegetables_____________________andfarmers____________________________________.6．有时候蔬菜会生虫子，灭虫就变得很紧迫。Sometimes________________________,_____________becomesveryurgent.【句式结构与思路