高中英語(yǔ)-Book 4 unit 2 Working the land using language教學(xué)課件設(shè)計(jì)

高中英語(yǔ)人教版必修4第二單元UsingLanguage吃動(dòng)物怕激素；吃植物怕毒素；喝飲料怕色素；能吃什么，心里沒(méi)數(shù)。－－－全國(guó)人大代表金志國(guó)帶到兩會(huì)上的順口溜Whatisthematterweputonthesoilwhichmakescropsgrow?Itisfertilizer.chemicalfertilizers

natural

fertilizersReading

CHEMICALORORGANICFARMING?Long-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.Farmersandcustomersturntoorganicfarming.Othermethodstokeepthesoilfertile.FastreadingProblemscausedbychemicalfertilizersMainideaP1.P2.P3.P4.Whyarechemicalfertilizerssopopularinfarmingtoday?Theycanstopcropdiseaseandincreaseproduction.Long-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.CarefulreadingParagraph1Whatproblemscanbecausedbyusingchemicalfertilizers?Theycandamagethelandbykillinghelpfulbacteriaandpestsandbystayinginthegroundandundergroundwaterforalongtime.Theydamagepeople'shealthbybuildingupintheirbodiesandleadingtocancerorotherillnesses.

ProblemscausedbychemicalfertilizersParagraph2Paragraph3

Whatisorganicfarming?

Farmingwithoutusingchemicals.

Farmersandcustomersturntoorganic

farming.Findandwritedownthemethodsandadvantagesinthepassage.MethodsoforganicfarmingAdvantagesofmethodsParagraph3Farmersusenaturalwastefromanimals.Thismakesthesoilricherinmineralsandsomorefertile.MethodsoforganicfarmingAdvantagesof

methods

Farmersoftenchangethekindofcropineachfieldeveryfewyears.Changingthecropsrenewsthemineralsinthesoilandhelpsitbecomerichandhealthy.Farmersplantcropswithdifferentlengthsofroots.Thisusesdifferentlevelsofsoil.Farmerssometimesplantgrassbetweencropsandleaveitintheground.Thispreventswindorwaterfromcarryingawaysoilandactsasanaturalfertilizer.Paragraph4Othermethodstokeepthesoilfertile.Whatisthegoalofusingorganicfarmingmethods?Togrowgoodfoodandavoiddamagingtheenvironmentorpeople’shealth.Paragraph4

In______days,

scientists______________(discover

)that____(use)chemicalfertilizersforalongtimecanhurtthelandandalsopeople’shealth.Thereareseveralproblems______(cause)bychemicalfertilizers.Theyhurtthehealthoftheland,stayinthewaterforalongtimeandgetintopeople’sbodies______theirfood.Organicfarmingisbecomingmorepopularwithsomefarmersandmanycustomersafterthesediscoveriescameout.Organicfarmingdoesnotuseany__________.Therearemanyorganicfarmingmethodsformakingtheland_______(health)andproductive.Allofthesemethodstrytoproducegoodfoodand________(keep)theenvironmentandpeoplehealthy.recenthavediscoveredusingcausedthroughchemicalshealthytokeepSummaryExpressions

1.化肥2.對(duì)…造成損害3.洗掉某物4.導(dǎo)致;造成(后果);通往5.逐漸增強(qiáng),建立6.另外(還有)7.使…免受(影響);

使…不含(有害物)8.集中(注意力、精力)于9.每隔幾年10.避免做…chemicalfertilizerscause/dodamagetowashoffleadtobuildupinaddition(to)keep…freefrom/offocusoneveryfewyearsavoiddoingLanguagepoints1.Manyofthesechemicalscanleadtocancerorotherillnesses.leadto:

Toomuchworkandtoolittlerest

often

leadtoillness.過(guò)量的工作和過(guò)少的休息會(huì)引起疾病。Hismistakes________hisfailure.Allroads_______Rome.

ledto

leadto

causeresultin,bringabout導(dǎo)致；造成2.Theyfocusonkeepingtheirsoilrichand

freeofdisease.focuson:

集中(注意力，精力等）于Youshouldfocusyourattentionon

your

work.

Focusonlife.

瞄準(zhǔn)生活。Please_____yourmind___

the

followingproblem.focusonconcentrateonListentothedialogueand

decideifthe

followingstatementsaretrueorfalse,accordingtotheconversation.Giveyourreasons.1.PaulthinksthatCarrieisnottellinghimthetruth.2.Usingchemicalfertilizersalwaysmakesvegetablesemptyinside.TrueFalse3.Today’sfruitisnotashealthyforpeopleasfruitfiftyyearsago.4.Eatingmorevegetablesmightnotalwaysbegoodforus.5.Alloftoday’svegetableslookhealthybutinfactarenot.FalseTrueTrueSpeakingThefarmerispersuadingthecustomertobuyhis/her“greenfood”.

Youneedto…Theadvantagesare…I’dprefer…because…What’stheadvantageof…ShouldI/we...?It’sbetterto…It’smoreexpensivebut…Idon’tlike…because…I’drather…Thisisgoodvaluebecause…You’lltastethedifferencewhen…IfIhaveachoiceI’llchoose…It’sagreatpitythat…Sampledialogue:F=FarmerC=CustomerF:Goodmorning!Wouldyoulikesomeorganiccarrotsthismorning?C:Hmm…They’realittleexpensive!Whatistheadvantageof…？F:Theadvantageofthesevegetablesisthattheyaregreenfoodsothey’resafetoeatandgoodforyourfamily.C:Butwhat’stheadvantageofhavinggreenfood?Iknowallvegetablesaregoodforyouandthosedowntheroadlookgreentoo.AndIcanbuythemathalfthepricethere.F:Well,letmeexplain.I’dratherfeedmyfamilyongreenfoodthanothervegetablesbecausetheyaregrownwithoutchemicalfertilizers.C:Butthepriceistooexpensive!I’dprefertobuygoodfoodifIcanaffordit.F:Thisisgoodvalueformoneybecauseyou’llhavehealthierchildren.Theywon’thavetotaketimeoffwork.Inthelongrunyou’llbebenefit.C:CertainlyI’dliketobuywhatissafeandhealthy.PerhapsI’lltrysomeofyourvegetablesandi