高中英语 B4Unit2Working the land Using language课件 新人教版必修4.ppt

unit2workingthelandusinglanguage reading chemicalororganicfarming organicfarming 吃动物怕激素 吃植物怕毒素 喝饮料怕色素 能吃什么 心里没数 全国人大代表金志国带到两会上的顺口溜 whatisthematterweputonthesoilwhichmakescropsgrow itisfertilizer chemicalfertilizersnaturalfertilizers scanning 1 whatisorganicfarming farmingwithoutusingchemicals 2 whatisthegoalofusingorganicfarmingmethods togrowgoodfoodandavoiddamagingtheenvironmentorpeople shealth long termuseofchemicalfertilizerscancausedamagetothelandandpeople shealth farmersandcustomersturntoorganicfarming othermethodstokeepthesoilfertile skimming problemscausedbychemicalfertilizers mainidea p1 p2 p3 p4 1whyarechemicalfertilizerssopopularinfarmingtoday 2whatproblemscanbecausedbyusingchemicalfertilizers 3whatisorganicfarming 4whatisthemainreasonforusingorganicfarmingmethods readthepassageandanswerthefollowingquestions 1whyarechemicalfertilizerssopopularinfarmingtoday theyareagreatwaytostopcropdiseaseandincreaseproduction 2whatproblemscanbecausedbyusingchemicalfertilizers theycandamagethelandbykillinghelpfulbacteriaandpetsandbystayinginthegroundandundergroundwaterforalongtime theydamagepeople shealthbybuildingupintheirbodiesandleadingtocancerorotherillnesses 3whatisorganicfarming 4whatisthemainreasonforusingorganicfarmingmethods organicfarmingmeansgrowingcropswithoutusinganychemicals themainreasonforusingorganicfarmingmethodsistogrowgoodfoodandtoavoiddamagingtheenvironmentorpeople shealth findandwritedownthemethodsandadvantagesinthepassage mainideaofthepassage chemicalfertilizerscancausemanyproblems soorganicfarmingisbecomingmorepopular underlineandrewordingtopicsentences para1 inrecentdays scientistshavediscoveredthatusingchemicalfertilizersforalongtimecanhurtthelandandalsopeople shealth para2 thereareseveralproblemscausedbychemicalfertilizers para3 organicfarmingisbecomingmorepopularwithsomefarmersandmanycustomersafterthesediscoveriescameout para4 therearemanyorganicfarmingmethodsformakingthelandhealthyandproductive writingasummary inrecentdays scientistshavediscoveredthatusingchemicalfertilizersforalongtimecanhurtthelandandalsopeople shealth thereareseveralproblemscausedbychemicalfertilizers theyhurtthehealthoftheland stayinthewaterforalongtimeandgetintopeople sbodiesthroughtheirfood organicfarmingisbecomingmorepopularwithsomefarmersandmanycustomersafterthesediscoveriescameout organicfarmingdoesnotuseanychemicals therearemanyorganicfarmingmethodsformakingthelandhealthyandproductive allofthesemethodstrytoproducegoodfoodandtokeeptheenvironmentandpeoplehealthy expressions 1 化肥2 对 造成损害3 洗掉某物4 导致 造成 后果 通往5 逐渐增强 建立6 另外 还有 7 使 免受 影响 使 不含 有害物 8 集中 注意力 精力 于9 每隔几年10 避免做 chemicalfertilizerscause dodamagetowashoffleadtobulidupinaddition to keep freefrom offocusoneveryfewyearsavoiddoing languagepoints 1thesechemicalsinthefoodsupplybuildupinpeople sbodiesovertime buildup增强 建立 开发hardworkingconditionsbuildupcharacter 艰苦的工作条件能磨练人的性格 2manyofthesechemicalscanleadtocancerorotherillnesses leadto 导致 造成toomuchworkandtoolittlerestoftenleadtoillness 过量的工作和过少的休息会引起疾病 allroadsleadtorome 条条大道通罗马 3theyfocusonkeepingtheirsoilrichandfreeofdisease focuson 集中 注意力 精力等 于youshouldfocusyourattentiononyourwork 把注意力集中在你的工作上 focusonlife 瞄准生活 4thisalsokeepstheair soil waterandcropsfreefromchemicals keeps freefrom of 使 免受 影响 伤害 使不含 有害物 keepfreefromemotionalreactions避免激动的反应keepfreefromrestrictions避免受到限制keepfrom 阻止 妨碍ihopeyouwillkeepfromdoinganythingrash 我希望你不要做出任何鲁莽的事情来 5 supply 1 用作名词时 a 指 供给 供应 等 其反义词为demand 需求 supplyanddemand供与求beinshortsupply供应缺乏 供应不足foodsupply食物供应watersupply供水 b 当 供应品 生活用品 补给品 等 常用复数supplies militarysupplies军需品householdsupplies家庭用品medicalsupplies医用品 2 用作动词时 指 供给 提供 备办 等 supplysb with sth supplysth to forsb theysuppliedfoodto forthem 他们供给他食物 thelibraryiswellsuppliedwithbooks 图书馆备有充足的书籍 6 cropssuchaspeasorsoybeansputimportantmineralsbackintothesoil makingitreadyforcropssuchaswheatorcornthatneedrichandfertilesoil 分析 本句结构比较复杂 其主干结构为 主句 cropsputimportantmineralsbackintothesoil 状语 makingitreadyforcrops 状语中又包含 make it 形容词 结构和由that引导的定语从句 thatneedrichandfertilesoil 7 someorganicfarmerspreferplantinggrassbetweencropstopreventwindorwaterfromcarryingawaythesoil andthenleavingitinthegroundtobecomeanaturalfertilizerforthenextyear scrop 分析 本句的主干结构是一个简单句 其结构是 主语 farmers 谓语 prefer 并列宾语 planting leaving 其中betweencrops和intheground作地点状语 两个宾语后面又分别带有一个不定式作目的状语 topreventwindorwaterfromcarryingawaythesoil和tobecomeanaturalfertilizerforthenextyear scrop pleasedon tconfuseaustraliawithaustria 别把澳大利亚和奥地利混淆了 muchtomyregret ican tacceptyourinvitation 很抱歉 我不能接受你的邀请 wemustincreaseproductionlevels 我们必须提高生产水平 manydiseasesarecausedbybacteria 许多疾病是由细菌引起的 thatchildisanabsolutepest 那孩子讨厌极了 growthisafunctionofnutrition 长身体是由营养决定的 coalisamineral 煤是一种矿物 newscientificdiscoveriesarebeingmadeeveryday 每天都有新的科学发现 thiskindofsoilcontainsmuchalkali 这种土壤含碱丰富 heistryingtoreducethefamily sexpenses 他正尽力减少家庭开支 unhappinessistherootcauseofhisillness 不开心是他生病的根源 ittookmeanhourtoskimthebook 我花了一小时把这本书浏览了一遍 pleaseunderlinetheimportantitems 请在重要事项的下面划线 pleasewritemeasummaryofthisreport 请替我写一份这份报告的摘要 hemadeseveralfavorablecommentsabouttheircandidate 他对他们的候选人发表了一些有利的评论 exercises cause dodamageto washoff leadto bulidup inaddition to keep freefrom of focuson avoiddoing 1 hismistakes hisfailure 2 thesechemicalsinthefoodsupply inpeople sbodiesovertime 3 4 please yourmind thefollowingproblem 5 childrenshould violence ledto buildup focus on allroads rome leadto bekeptfreefrom cause dodamageto washoff leadto bulidup inaddition to keep freefrom of focuson avoiddoing 6 helikesbasketball helikesfootball helikesbasketball football 7 littletomstuckto themud hisshoesbyhimselfbeforehecamein 8 itriedto meet himbecausehealwaysboresme 9 thestormonmay3 great peopleinburmasofar inaddition inadditionto washing off avoidmeeting hascaused damageto listening chemicalfertilizer cowdung 用化学肥料和有机肥料的区别 thepossiblebadeffectsofchemicalfertilizersonthefruitandvegetablesthatweeattoday asyoulistentothisdialogue keepinmindwhatyouhavejustreadaboutchemicalfertilizers whatisthemaintopicoftheconversation listentothedialogueasecondtime decideifthefollowingstatementsaretrueorfalse accordingtotheconversation giveyourreasons 1paulthinksthatcarrieisnottellinghimthetruth 2usingchemicalfertilizersalwaysmakesvegetablesemptyinside true false 3today sfruitisnotashealthyforpeopleasfruitfiftyyearsago 4eatingmorevegetablesmightnotalwaysbegoodforus 5alloftoday svegetableslookhealthybutinfactarenot false true true listeningtext what swrongwiththevegetables girl hey paul listentothis amagazinearticleaboutafarmerwhousedtoomuchchemicalfertilizeronhisfields whenhisvegetableswerepicked theywereallfoundtobeempty boy empty you rejoking carrie thatcan tbetrue girl ididn tbelieveiteither thisarticlesaysthiscanhappensometimeswithvegetableslikecucumbers carrotsandpumpkins thischemicalfertilizermakesthevegetablesgrowfasttolookbigandbeautiful butthey reemptyinside boy youknow i venoticedthatsometimesmymumbuyscarrotsfromthesupermarketthathavebigholesdownthecenter iguessthatmustbefromusingchemicalfertilizers girl yeah that swhatthemagazinesays themainpointofthearticle though isn taboutholesinourvegetables it stalkingaboutwhythefruitandvegetablesweeattodayaren tasnutritiousastheonesourgrandparentsate boy what mymumisalwaystellingmetoeatmorevegetables becausethey regoodforme girl yeah iknow mymothersaysthatsamething andit strue theyaregoodforus buttheproblemisthattheyaren thealthyenough allthesechemicalfertilizers theykilloffboththebadandthegoodthingsintheground thegrounddoesn thaveenoughvitaminsandmineralsanymoretohelpcropsgrowhealthy boy so ifourfruitandvegetablesweregrownwithchemicalfertilizers theymightlookhealthy butprobablyaren treallyhealthy iguesswe vegottostopusingsomanychemicalfertilizerstogrowourfood speaking thefarmerispersuadingthecustomertobuyhis her greenfood youneedto theadvantagesare i dprefer because what stheadvantageof shouldi we it sbetterof it smoreexpensivebut idon tlike because i drather thisisgoodvaluebecause you lltastethedifferencewhen ifihaveachoicei llchoose it sagreatpitythat sampledialogue f farmerc customer f 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 lltrysomeofyourvegetablesandiftheyareasgoodasyousay i llbebacknextweek writing s