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1、 人教版高中英语选择性必修第一册Unit 5 Using Language原创课文语法填空和翻译含答案一、阅读填空（共1题）1.CHEMICALVERSUSORGANICFARMINGChemicalpesticidesandartificialfertilisers_(spread)useinfarmingsincethemiddleofthe20thcentury.Whentheywerefirstintroduced,manyfarmerswelcomedthem_agreatwaytofightcropdiseaseandincreaseproduction.Overtime,howe
2、ver,_somescientistshavefoundisthattheirlong-termusecansometimesharm_thelandandpeopleshealth.Forexample,pesticidescandamagetheland_killingnotonlyharmfulbacteriaandinsects,_alsohelpfulones.Inaddition,thesechemicalscanstayinthesoilandundergroundwatersourcesforalongtime.Thisaffectsthecrops_(grow)onthela
3、ndand,_turn,theanimalsandhumanswhodigestthem.Manypeopleworrythatthesechemicalsmaymakethemillandevencausecancer.Infact,somepesticideslikeDDT_(prohibit)inmostcountriesbecauseofthedamagetheycausetopeopleandtheenvironment._forchemicalfertilisers,crops_(grow)withthemusuallygrowtoofasttoberich_nutrition.T
4、heymaylookbeautifulontheoutside,butinsidethereisusuallymorewater_essentialminerals,andtheyoftenhavelessflavouraswell.Asanalternative,somefarmershaveswitched_organicfarming,andmanycustomershaveturnedtoorganicfoodwhentheyshopatthelocalgrocery.Organicfarmingissimplyfarming_usinganychemicals.Organicfarm
5、ersfocusonkeepingtheirsoilrichandfreeofdisease_naturalmeans.Forexample,manyorganicfarmersusenaturalwastefromanimalsasfertiliser.Thismakesthesoilintheirfields_(rich)inminerals.Italsokeepstheair,soil,water,andcropsfreeofchemicals.Organicfarmersalsousemanyothermethods_(produce)richsoil.Theyoftenchanget
6、hekindofcropgrownineachfieldeveryyear.Forinstance,theymaygrowcornorwheatinafieldoneyear,andthengrowbeanstherethenext.Whydifferentcropsaregrownisbecausetheyputimportantmineralsbackintotheground,_(make)itreadyforthenextbatchofcrops.Organicfarmersalsoplantdiversecropsthatusedifferent_(deep)ofsoiltohelp
7、keepitrich.Forexamplepeanutsgrowonthegroundssurface,butmanyothervegetablesputdowndeeproots.Thegoalofusingdifferentorganicfarmingmethodsis_(grow)goodfoodwhileavoidingdamagetotheenvironmentortopeopleshealth.Somepeoplewouldprefertostoptheuseofman-madechemicalsinagricultureentirely._keepsthemfromdoingso
8、isthefactthatchemicalfarmingservesthehighdemandforfoodaroundtheworld.Organicfarmingisnowherenearabletomeetthatneed._,thereisstillalongwaytofindasuitable_(solve)thatputssufficientfoodonthedinnertablewhile_(keep)peopleandtheenvironmentashealthyaspossible.1_2_3_4_5_6_7_8_9_10_11_12_13_14_15_16_17_18_19
9、_20_21_22_23_24_25_二、书面表达（共5题）1.Chemicalpesticidesandartificialfertilisershavebeeninwidespreaduseinfarmingsincethemiddleofthe20thcentury.Whentheywerefirstintroduced,manyfarmerswelcomedthemasagreatwaytofightcropdiseaseandincreaseproduction.Overtime,however,whatsomescientistshavefoundisthattheirlong-t
10、ermusecansometimesharmboththelandandpeopleshealth.2.Forexample,pesticidescandamagethelandbykillingnotonlyharmfulbacteriaandinsects,butalsohelpfulones.Inaddition,thesechemicalscanstayinthesoilandundergroundwatersourcesforalongtime.Thisaffectsthecropsgrownonthelandand,inturn,theanimalsandhumanswhodige
11、stthem.Manypeopleworrythatthesechemicalsmaymakethemillandevencausecancer.Infact,somepesticideslikeDDThavebeenprohibitedinmostcountriesbecauseofthedamagetheycausetopeopleandtheenvironment.Asforchemicalfertilisers,cropsgrownwiththemusuallygrowtoofasttoberichinnutrition.Theymaylookbeautifulontheoutside
12、,butinsidethereisusuallymorewaterthanessentialminerals,andtheyoftenhavelessflavouraswell.3.Asanalternative,somefarmershaveswitchedtoorganicfarming,andmanycustomershaveturnedtoorganicfoodwhentheyshopatthelocalgrocery.Organicfarmingissimplyfarmingwithoutusinganychemicals.Organicfarmersfocusonkeepingth
13、eirsoilrichandfreeofdiseasethroughnaturalmeans.Forexample,manyorganicfarmersusenaturalwastefromanimalsasfertiliser.Thismakesthesoilintheirfieldsricherinminerals.Italsokeepstheair,soil,water,andcropsfreeofchemicals.4.Organicfarmersalsousemanyothermethodstoproducerichsoil.Theyoftenchangethekindofcropgrownineachfieldeveryyear.Forinstance,theymaygrowcornorwheatinafieldoneyear,andthengrowbeanstherethenext.Whydifferentcropsaregrownisbecausetheyputimportantmineralsbackintotheground,makingitreadyforthenextbatchofcrop
