Unit 5 Using language Reading for writing 課件 高中英語人教版（2019）選擇性必修第一冊

UsinglanguageReadingLead-inDoyouwanttohavealandofyourown?Whatwillyougrowifyouhavealand?

chemicalfertilizersnaturalfertilizersChemicalfarming

farmingusingchemicalpesticidesandartificialfertilisers.Organicfarming

simplyfarmingwithoutusinganychemicals.ChemicalVersusOrganicFarmingAWhatorganicfarmingisBWhyman-madechamicalarestillusedinfarmingCOrganicmethodsforproducingrichsoilDTheproblemswithchemicalfarminngPara1-2:()Para3:()Para5:()Para4:()ReadforstuctureDACBDTheproblemswithchemicalfarminng

Para1-2AWhatorganic

farmingisPara3COrganicmethodsforproducingrichsoilPara4BWhyman-madechamicalarestillusedinfarmingPara5ChemicalfarmingOrganicfarmingThinkingChemicalfarming

Para1-2CHEMICALVERSUSORGANICFARMINGChemicalpesticidesandartificialfertilisershavebeeninwidespreaduseinfarmingsincethemiddleofthe20thcentury.Whentheywerefirstintroduced,manyfarmerswelcomedthemasagreatwaytofightcropdiseaseandincreaseproduction.Overtime,however,whatsomescientistshavefoundisthattheirlong-termusecansometimesharmboththelandandpeople’shealth.此句中包含兩個(gè)從句，分別是what引導(dǎo)的____從句，what在此從句中充當(dāng)___語；

以及that引導(dǎo)的_____從句，that在此從句中___成分；____實(shí)際意義，但___省略Chemicalpesticidesandartificialfertilisers_________(be)inwidespreaduseinfarmingsincethemiddleofthe20thcentury.Whentheywerefirstintroduced,manyfarmerswelcomedthem_______agreatwaytofightcropdiseaseandincreaseproduction.Overtime,_________,whatsomescientistshavefoundis________theirlong-termusecansometimesharmboththeland_______people’shealth.havebeenashoweverthatandForexample,pesticidescandamagethelandbykillingnotonlyharmfulbacteriaandinsects,butalsohelpfulones.Inaddition,thesechemicalscanstayinthesoilandundergroundwatersourcesforalongtime.Thisaffectsthecropsgrownonthelandand,inturn,theanimalsandhumanswhodigestthem.Manypeopleworrythatthesechemicalsmaymakethemillandevencausecancer.Infact,somepesticideslikeDDThavebeenprohibitedinmostcountriesbecauseofthedamagetheycausetopeopleandtheenvironment.Asforchemicalfertilisers,cropsgrownwiththemusuallygrowtoofastto

berichinnutrition.Theymaylookbeautifulontheoutside,butinsidethereisusuallymorewaterthanessentialminerals,andtheyoftenhavelessflavouraswell.此句中g(shù)rownontheland是過去分詞短語做_____語；修飾_____;此句中的whodigestthem是_____從句，其先行詞是_____essential:essence本質(zhì)；實(shí)質(zhì)；inessence從本質(zhì)上講beessentialto對(duì)....很重要Itisessential(forsb)todosth(對(duì)某人來說)做某事很重要Itisessentialthat...(should)do做...很必要1.Waterandfoodareessential_____livingthings(生物)2.Itisgoodforyoutolearntoreadbodylanguage,whichisessentialto_____(develop)yoursocialskills3.Asweallknow,itisessentialforstudents______(make)carefulpreparationsfortheexam.4.每個(gè)學(xué)生都必須有充足的睡眠和規(guī)律的鍛煉Forexample,pesticidescandamagethelandby______(kill)notonlyharmfulbacteriaandinsects,_______alsohelpfulones.Inaddition,thesechemicalscanstayinthesoilandundergroundwatersourcesforalongtime.Thisaffectsthecropsgrownonthelandand,inturn,theanimalsandhumans_______digestthem.Manypeopleworrythatthesechemicalsmaymakethemillandevencausecancer.Infact,somepesticides_______DDThavebeenprohibitedinmostcountriesbecauseofthedamagetheycause____peopleandtheenvironment.Asforchemicalfertilisers,cropsgrownwiththemusuallygrowtoofast_____(be)richinnutrition.Theymaylookbeautifulontheoutside,butinsidethereisusuallymorewaterthan

essentialminerals,andtheyoftenhave______(little)flavouraswell.killingbutwholiketotobeless1.Whydidmanyfarmerswelcometheintroductionofchemicalfarming?(Para1)

Advantages:Manyfarmerswelcomedthemasagreatwaytofightcropdiseaseandincreaseproduction.2.Whatconcernsmanypeopleabouttheuseofpesticides?(Para1)

Disadvantages:Theirlong-termusecansometimesharmboththelandandpeople’shealth.3.Whatisoneproblemwiththeuseofchemicalfertilisers?(Para2)

Disadvantages:Cropsgrownwiththemusuallygrowtoofasttoberichinnutrition.OrganicfarmingPara3-4Asanalternative,somefarmershaveswitchedtoorganicfarming,andmanycustomershaveturnedtoorganicfoodwhentheyshopatthelocalgrocery.Organicfarmingissimplyfarmingwithoutusinganychemicals.Organicfarmersfocusonkeepingtheirsoilrichandfreeofdiseasethroughnaturalmeans.Forexample,manyorganicfarmersusenaturalwastefromanimalsasfertiliser.Thismakesthesoilintheirfieldsricherinminerals.Italsokeepstheair,soil,water,andcropsfreeofchemicals.analternativeto......的替代品havenoalternativetodosth別無選擇只能做某事alternativeenergy替代能源alternativelifestyle/values非傳統(tǒng)的生活方式/價(jià)值觀“不得不做某事”的其他表達(dá)：can’tbutdosth;can’tchoose/helpbutdobyallmeans當(dāng)然行；可以bynomeans絕不bymeansof借助...的手段；依靠...的方法As______alternative,somefarmershaveswitchedtoorganicfarming,andmanycustomershaveturnedtoorganicfood_____theyshopatthelocalgrocery.Organicfarmingissimplyfarming_______usinganychemicals.Organicfarmersfocusonkeepingtheirsoilrichandfree_____diseasethroughnaturalmeans.Forexample,manyorganicfarmersusenaturalwastefromanimals____fertiliser.Thismakesthesoilintheirfieldsricherinminerals.Italsokeepstheair,soil,water,____cropsfreeofchemicals.anwhenofaswithoutandOrganicfarmersalsousemanyothermethodstoproducerichsoil.Theyoftenchangethekindofcropgrownineachfieldeveryyear.Forinstance,theymaygrowcornorwheatinafieldoneyear,andthengrowbeanstherethenext.Whydifferentcropsaregrownisbecausetheyputimportantmineralsbackintotheground,makingitreadyforthenextbatchofcrops.Organicfarmersalsoplantdiversecropsthatusedifferentdepthsofsoiltohelpkeepitrich.Forexamplepeanutsgrowontheground’ssurface,butmanyothervegetablesputdowndeeproots.Thegoalofusingdifferentorganicfarmingmethodsistogrowgoodfoodwhileavoidingdamagetotheenvironmentortopeople’shealth.adj.highwidelongstrongbroadn.v.heightheightenwidthwidenlengthlengthenstrengthstrengthenbroadenroot.根；根莖;根源1.Weneedtogettotherootoftheproblembeforewecansolveit.2.Sincethatday,adreamhastakenrootinmyheart.3.Nocountry,nohappiness.Everyonemustberootedinthesoilofthemotherland.問題的根源在心里扎根植根于Whydifferentcropsaregrownisbecausetheyputimportantmineralsbackintotheground,makingitreadyforthenextbatchofcrops.此句是由why引導(dǎo)的___從句，why在此從句中___成分，____意義，意為_____;because引導(dǎo)____從句，because在此從句中___意義，意為____.making...crops做____狀語Thegoalofusingdifferentorganicfarmingmethodsistogrowgoodfoodwhileavoidingdamagetotheenvironmentortopeople’shealth.此句是的主語是______Organicfarmersalsousemanyother_____(method)toproducerichsoil.Theyoftenchangethekindofcropgrownineachfieldeveryyear._____instance,theymaygrowcorn___wheatinafieldoneyear,andthengrowbeanstherethenext.Whydifferentcropsaregrown____(be)becausetheyputimportantmineralsbackintotheground,_____(make)itreadyforthenextbatchofcrops.Organicfarmersalsoplantdiversecropsthatusedifferent____(depth)ofsoiltohelpkeepitrich.Forexamplepeanutsgrow____theground’ssurface,butmanyothervegetablesputdowndeep___(root).Thegoalofusingdifferentorganicfarmingmethods____(be)togrowgoodfoodwhileavoidingdamagetotheenvironmentor____people’shealth.methodsFororismakingdepthsonrootsisto4.Howisorganicfarmingdifferentfromchemicalfarming?(Para3)

Organicfarmingissimplyfarmingwithoutusinganychemicals.Organicfarmersfocusonkeepingtheirsoilrichandfreeofdiseasethroughnaturalmeans.5.Whataretheorganicmethodsmentionedinthetext?(Para3&4)

1.usenaturalwastefromanimalsasfertilizer.2.changethekindofcropgrownineachfieldeveryyear.3.plantdiversecropsthatusedifferentdepthofsoiltokeepitrich.6.What'sthegoalofusingorganicfarmingmethods?（Para4）

Advantages:Thegoalofusingdifferentorganicfarmingmethodsistogrowgoodfoodwhileavoidingdamagetotheenvironmentortopeople'shealth.Somepeoplewouldprefertostoptheuseofman-madechemicalsinagricultureentirely.Whatkeepsthemfromdoingsoisthefactthatchemicalfarmingservesthehighdemandforfoodaroundtheworld.Organicfarmingisnowherenearabletomeetthatneed.Therefore,thereisstillalongwaytofindasuitablesolutionthatputssufficientfoodonthedinnertablewhilekeepingpeopleandtheenvironmentashealthyaspossible.prefertodoratherthandopreferdoingtodoingprefer____(n)nowherenear完全沒有；遠(yuǎn)不及Eg.Weonlyhad$100andthatwasnowherenearenoughtobuyanewcomputer.1.Youcangetnowherewithoutanobjectiveinlife.2.Iwascrossingthestreetwhenacarappearedoutofnowhere.沒有結(jié)果；沒有進(jìn)展突然出現(xiàn)Whatkeepsthemfromdoingsoisthefactthatchemicalfarmingservesthehighdemandforfoodaroundtheworld.本句包含what引導(dǎo)的___從句，what在