人教下学期高一英语Unit19 1

Changesinpeople’seatinghabitsChangesineconomicdevelopmentChangesinagriculturalproduce精选pptUsefulexpressionsInmyopinionyoushould…IfIwereyou…AsfarasIcanseethebestthingwouldbeto…Wouldn’titbebetterif…?Ithinkheisright…Wehavetomakeachoice…Wecan’tdoboth,so…Theotherideasoundsbettertome…精选pptUsefulexpressions AsfarasIamconcerned,Ithink… Don’tyouagreethat… Ican’thelpthinkingthat… Itseemstomethat… Personally,Ithink… Thepointisthat… FromwhereIstand, Frommypointofview, Iholdtheopinionthat… It’smyconsideredopinionthat…精选pptLookatthepicturesandcomparetraditionalandmodernfarming.Whataretheadvantagesanddisadvantagesofeachway?Pre-reading精选ppt精选ppt精选pptRaisingchickensSmallscaleLargescaleThefarmerscankeeponlyafewchickens.Itdoesnotcostalottokeepthechickens.Itisnotalotofworktokeepthechickens.Thechickensdon’thavemanyproblems.Thechickensarenotsofat.Theeggsandthemeattasteverygood.Thechickensarefree.Thefarmerscankeepthousandsofchickens.Itcostsalotofmoneytokeepthechickens.Itisalotofworktokeepthem:feeding,cleaning,etc.Ifthechickensgetill,manydieormustbekilled.Thechickensarebigandfat.Themeatandeggsdon’ttastesogood.Thechickensarenotfree.精选pptFertilizersNaturalfertilizermanure/dungChemicalfertilizerIt’sfreeorcanbeboughtatlowprice.Itisalotofworktomixitwiththesoil.Ithasabadsmell.Ittakesalotofplacetostore.Itisdifficulttotransport.It’sexpensive.Itisnotalotofworktomixitwithsoil.Ithasnosmell.Ittakeslittlepacetostore.Itiseasytotransport.精选pptHorsepowerAnimals(buffalo/ox)machineTheyarenotsoexpensive.Thefuelischeap.(grass/hay)Theydon’tpollutetheair.Theycanbeusedonallterrain,hillslopesorwetground.Theyneedtorestsometimes.Youcanusethemforabout10-20years.Iftheygetyoungones,yougetmoreforfree.Iftheytotallybreakdown,youcaneatthem.Theyareexpensive.Thefuelisexpensive.Theypollutetheair.Theycanonlybeusedonflatanddryterrain.Theydon’tneedtorest.精选pptClimatecontrolOpenairGreenhouseIftheweatherconditionsarebadyoucanlosethecrops.Thelandscapeismorebeautiful.Thelandmustbegoodforfarming.Weatherconditionsarecontrolled,sotheycan’tdamagethecrops.Itisexpensivetobuildandoperate(gas,water,electricity)agreenhouse.Ifthereisapowerfailure,youmaylosecrops.Thelandscapeisugly.Greenhousecanbebuiltwherethelandisnotsuitableforfarming.精选pptAgriculturehasdevelopedovertime.Whichofthefollowingtechniquesaremoretraditional?Whicharemoremodern?Startwiththemosttraditional.Chemicalfertilisers&electricpumpsb.GMtechniquec.Growingvegetablesingreenhousesd.Fertilizationandirrigation1234精选ppt1.InChina,howmuchlandcanbeusedforfarming?2.Whytwoormorecropsareplantedeachyear?Only7percentofthelandcanbeusedforfarming.Itistomakeasmuchuseofthelandaspossible.精选ppt3.What’sthepurposeofdevelopingthenewtechniques?4.WhatisthebiggestproblemofChinesefarmers?Growingnewtechniquescanincreaseagriculturalproductionwithoutharmingtheenvironment.Thebiggestproblemistheshortageofarableland.5.Whatarethetwotechniquesdevelopedtodealwiththeshortageofarablelandmentionedinparagraph4and5?GrowingvegetablesingreenhouseandGM.精选ppt6.Whataretheadvantagesofgrowingvegetablesingreenhouse?Ingreenhouse,vegetablesareprotectedfromthewind,rainandinsects.Andthetemperatureiscontrolledbycomputer,sothechangeofweatherwon’taffectthegrowthofvegetables.7.WhataretheadvantagesofGM?Itcancreateplantsthatarebigger,healthierandneedmuchlesstimetogetripe.Theplantsmaycontainmorenutritionssuchasvitamines.Someplantscangrowinpoorsoil.精选ppt8.Atthebeginningofthepassage,whydoesthewritersay“ItisonthearablelandthatthefarmersproducefoodforthewholepopulationofChina”?ThewriterwantstoemphasisthatthelandthatcanbeusedforfarminginChinaisratherlimited.精选ppt精选ppt精选ppt9、静夜四无邻，荒居旧业贫。。2022/12/62022/12/6Tuesday,December6,202210、雨中黄叶树，灯下白头人。。2022/12/62022/12/62022/12/612/6/202211:26:48AM11、以我独沈久，愧君相见频。。2022/12/62022/12/62022/12/6Dec-2206-Dec-2212、故人江海别，几度隔山川。。2022/12/62022/12/62022/12/6Tuesday,December6,202213、乍见翻疑梦，相悲各问年。。2022/12/62022/12/62022/12/62022/12/612/6/202214、他乡生白发，旧国见青山。。06十二月20222022/12/62022/12/62022/12/615、比不了得就不比，得不到的就不要。。。十二月222022/12/62022/12/62022/12/612/6/202216、行动出成果，工作出财富。。2022/12/62022/12/606December202217、做前，能够环视四周；做时，你只能或者最好沿着以脚为起点的射线向前。。2022/12/62022/12/62022/12/62022/12/69、没有失败，只有暂时停止成功！。2022/12/62022/12/6Tuesday,December6,202210、很多事情努力了未必有结果，但是不努力却什么改变也没有。。2022/12/62022/12/62022/12/612/6/202211:26:48AM11、成功就是日复一日那一点点小小努力的积累。。2022/12/62022/12/62022/12/6Dec-2206-Dec-2212、世间成事，不求其绝对圆满，留一份不足，可得无限完美。。2022/12/62022/12/62022/12/6Tuesday,December6,202213、不知香积寺，数里入云峰。。2022/12/62022/12/62022/12/62022/12/612/6/202214、意志坚强的人能把世界放在手中像泥块一样任意揉捏。06十二月20222022/12/62022/12/62022/12/615、楚塞三湘接，荆门九派通。。。十二月222022/12/62022/12/62022/12/612/6/202216、少年十五二十时，步行夺得胡马骑。。2022/12/62022/12/606December202217、空山新雨后，天气晚来秋。。2022/12/62022/12/62022/12/62022/12/69、杨柳散和风，青山澹吾虑。。2022/12/62022/12/6Tuesday,December6,202210、阅读一切好书如同和过去最杰出的人谈话。2022/12/62022/12/62022/12/612/6/202211:26:48AM11、越是没有本领的就越加自命不凡。2022/