金太陽好教育云平臺Unit2Workingtheland

Usinglanguage231.Masterthefollowingnewwords,phrasesandsentences

inusinglanguageproduction,bacteria,pest,nutrition,discovery,soil,rootregret,reduce,regretbuildup,keep…freefrom,leadto,focuson,inadditionSomeorganicfarmerspreferplantinggrassbetweencropstopreventwindorwaterfromcarryingawaythesoil…2.Learntheadvantagesoforganicfarming.

本課首先觀看嘉世有機農業(yè)視頻，引出本節(jié)題目“化學耕作還是農業(yè)耕作”。進而討論化學耕作和有機耕作的概念?；瘜W耕作的弊端是什么？為什么農民轉而開始有機耕作？有機耕作通過什么方法來保持土地的肥沃？然后讓學生聽課文錄音，了解短文的主旨以及各段的大意。最后講解短文的語言點。最后通過改寫的短文加深對本文的了解。

講解農業(yè)耕作是配有相關的視頻，有助于學生理解。總結概括文章和段落大意，提高學生的理解和表達能力。聽課文錄音有助于學生聽力水平的提高。ReadingCHEMICALORORGANICFARMING?Whatcanweharvest?Nopains,nogains.嘉世有機農業(yè)Addfertilizerintothesoil

Howcanfarmersmaketheplantsgrowwell?Howmanykindsoffertilizersdofarmersuse?naturalfertilizerorganicfarmingchemicalfertilizerchemicalfarmingTwokinds.Discussion:Whichkindoffarmingisbetter?BetterLet’slearnmoreaboutchemicalandorganicfarming!Listentothetapecarefully.usinglanguagereadingorganicfarmingisbecomingmorepopular.Themainideaofthetext:FastReadingLong-termuseofchemicalfertilizerscancausedamagetothelandandpeople’shealth.Problemscausedbychemicalfertilizers.Themain

ideaofeachparagraphP1.P2.Farmersandcustomersturntoorganicfarming.Othermethodstokeepthesoilfertile.

P3.P4.CarefulReadingWhyarechemicalfertilizerssopopularinfarmingtoday?Becausetheyarecheap.Theyareagoodwaytostopcropdiseaseandincreaseproduction.Theycancausedamagetotheland.Theydogoodtopeople’shealth.ParagraphIChemical

farming

advantages

problems

cause

stopcropdisease

increase

productiondamagethelandby

killingthehelpfulbacteriaandpestsaswellastheharmfulones.affect

cropsby

stayinginthegroundandundergroundwaterforalongtimeleadtocancer/illnessesby

building

upinpeople’sbodiesovertimehave

lessnutritionbygrowingtoofastParagraph2Organicfarming

NaturalwastefromanimalsMakethesoilricherinmineralsandmorefertileAhealthysoilReducediseasesincropsHelpcropsgrowstrongandhealthyParagraph3Organic

farming

methods

advantagesusenaturalwastemake

the

soil

rich

inmineralschange

the

cropputmineralsbackintosoil,making…plantcropswithdifferentrootsusedifferentlevelsoflandplant

grassbetweencropsprevent…from…,anaturalfertilizerParagraph41.WhichstatementisWRONGaccordingtothetext?

A.Allcropsareorganic.B.Recently,theterm“organicfarming”hasgainedanothermeaning.C.Allfarmersusefertilizers.D.Scientistsbelievesomechemicalfertilizersarebetterforpeople.Readagainandchoosethebestanswer.

D2.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.Whatis“organicfarming”?Answer

thequestions.Itreferstocropsgrowingwithnaturalratherthanchemicalfertilizers.2.Whatdoorganicfarmersprefertouseasfertilizer?

Naturalwastefromanimals.Becausepeasandbeanscanputmineralsbackintothesoil,makingitrichandhealthyandreadytogrowmorewheatorcorn.3.Whydoorganicfarmersgrowpeas

orsoybeansaftercornorwheat?4.Whatisthemaingoalforusingorganicfarmingmethods?TogrowgoodfoodandtoavoiddamagingTheenvironmentorpeople’shealth.?Nouseofchemicalfertilizers?Awayfromindustrialareas?Awayfromdirtywatersupply?NoairpollutionAsummaryoforganicfarming:FillintheblanksManyfarmerswelcome______fertilizersbecausetheyaregreatwaytostopcropdiseaseandincrease_________.Butthesechemicalcan____toillnesses.Sofarmersbegantoturnto______farming.They____onkeepingtheirsoilrichand_____ofdisease.Organicfarmersoftenpreferusing______wasteofanimalsasfertilizer.Thiskeepsthesoilfree____chemicals.Therearemanymethodstokeepthesoil_____.Themethodshavethesamegoal:togrowgoodfoodandavoiddamagingthe_________orpeople’shealth.chemicalproductionfocusfreenaturalfromfertileenvironmentleadorganic1.Thesechemicalsinthefoodsupply

buildupinpeople’sbodiesovertime.LanguagePointsHardworkingconditionsbuildupcharacter.build

up

增強;建立;開發(fā)

艱苦的工作條件能磨練人的性格。2.Manyofthesechemicalscanlead

to

cancerorotherillnesses.Allroadslead

toRome.

leadto導致；造成條條大道通羅馬。3.Theyfocus

onkeepingtheirsoilrichandfreeofdisease.focus

on:集中(注意力,精力等)于Youshouldfocusyourattentiononyourwork.把注意力集中在你的工作上。

4.Thisalso

keeps

theair,soil,waterandcropsfree

fromchemicals.4.Youmusttakecaretokeepthewoundfreefromthedirt.

keeps…freefrom/of:

使…免受(影響,傷害等);使不含(有害物)你必須照顧好傷口，免受灰塵的傷害。5.

reduce

v.

減少,降低e.g.公司盡力通過減少花銷來提高利潤。Thecompanytriestoincreaseprofitsby_______________.今年我們已經減少了業(yè)務開支。We______________expensesthisyear.reducing

costshave

reducedExpressions

1.化肥2.對…造成損害3.洗掉某物4.導致;造成(后果);通往5.逐漸增強,建立6.另外(還有)7.使…免受(影響);8.集中(注意力、精力)于9.每隔幾年10.避免做…chemicalfertilizerscause/dodamagetowashoffleadtobuildupinaddition(to)keep…freefrom/offocusoneveryfewyearsavoiddoingExercises

washoff,l