高二英语必修4 Unit2 Working the landExtensive reading (ppt).ppt

unit2workingtheland reading2 3 罗远芬2006 5 18 organicfarminglistenandthenfindoutthemainideaofeachparagraph para1 para2 para3 whatisorganicfarming farmersprefernaturalwastefromanimals farmerschangecropseverytwoorthreeyears secondreadingreadthetextagainandanswerthefollowingquestions 1 whatisorganicfarming 2 whatproblemsarecausedbyusingchemicalfertilizers 3 whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat 1 whatisorganicfarming organicfarmingmeansgrowingcropswithoutchemicalfertilizers 2 whatproblemsarecausedbyusingchemicalfertilizers therearethreeproblems first chemicalfertilizersaffectthesoilandthewatersupplybadly second theyallowfarmerstogrowthesamecropyearafteryearandexhaustthesoil third theykillbothhelpfulandharmfulpests farmersgrowpeasorsoybeansaftercornorwheatsothatpeasandbeanscanputmineralsbackintothesoil makingitrichandhealthyandreadytogrowmorewheatorcorn 3 whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat organicfarming cropsgrowingwithnaturalratherthanchemicalfertilizer naturalwastefromanimals makethesoilricherinmineralsandmorefertile ahealthysoil reducediseasesincrops helpcropsgrowstrongandhealthy chemicalfertilizer notgoodforthesoilorthewatersupply thesoilgetsexhausted killbothhelpfulandharmfulbacteriaandpests changecropseverytwoorthreeyears corn wheat peassoybeans putthemineralsbackintothesoil makingitrichandhealthy cropsthatusethesurfaceofthesoil peanuts cropsthatneedadeeperlevelofsoil rootvegetable makesurethatwhatisleftinthegroundafterharvestingbecomesanaturalfertilizerforthenextyear scrop explanations 1 refer 常与to连用 vt 提交 谈及 归诸于 指点把 提交 使求助于vi 提到 涉及 查阅 咨询 新法律与耕地无关 thenewlawdoesnotrefertofarmland 所谈到的问题 thequestionreferredto 他把他的成功归于他以前所受的良好教育 hereferredhissuccesstothegoodeducationhehadhad 2 reducevmakesthsmallerinsize number degree price etc 减少 降低e g 公司尽力通过减少花销来提高利润 thecompanytriestoincreaseprofitsby 今年我们已经减少了业务开支 we expensesthisyear reducingcosts havereduced 3 supplyvt 供给 n 供应 供求之物 supplysth to forsb providesth to forsbsupplysb withsth providesb withsth 向 为某人提供某物 inshortsupply短缺medicalsupplies医疗用品theysuppliedthechildren toys theysuppliedtoys thechildren with to for 1 whatmadejiasixiebecomeinterestedinimprovingchinesefarming hesawhowsomefarmsproducedgoodcropsandhealthyanimalsandothersdidnot readingtaskonpage51 15ms readthepassageonpage51 thenfinishtheexercisesonpage52 2 howdidhethinkhecouldhelpfarmers hethoughtthatwhenhefoundthebestagriculturalmethodshewouldwritethemdawnsoallfarmers hangseed headsuptodryallwinter knockseedsoutwhentheyaresown chooseoneswiththebestcolour 3 whatadvicedidhegivefarmers makenotesinthechart letan