【公开课课件】高中英语人教新课标下册必修四 Unit 2 working the land reading (共24张PPT)

Unit2WorkingthelandReadingfarmingfindthewordsthatmatchthepicturesorexplanationsoybean

peanut

fertilizersorghumcrop

pest

asubstancethatisputonthesoiltomakeplantsgrowaplantsuchaswheat,rice,orfruitthatisgrownbyfarmersandusedasfoodaninsectoranimalthatdestroysplants,food,etcHaveyoueverbeentothecountryside?Haveyoueverseenfarmersplantrice?Whatdoyouknowaboutworkingtheland?ploughing(犁田)

seeding(播种)transplanting（移栽）fertilizing(施肥)irrigating(灌溉)ThoughmostChinesepeasantsworkhard,atleasttheyhaveenoughtofeedthefamily.Butnoteveryoneissolucky.News1.Thehungerproblemisexpandingintheworld.Therefore...SomepoorpeopleinHaytihavetoeatthemudcakesastheirmainfoodnow.themudcakesNews2.

ToridtheIndiaofhunger,theIndiangovernmentdecidedtocutdowntheexportofrice.Facingtheproblem,peopleinIndiaonlyhavetwomealsoneday.Twomealsareenoughforchildren?About5millionchildrendieofhungereveryyear.HungerInthelate1990s,Brown,anAmericanscholar,wroteanarticlenamedWhowillFeedChina,whichsaysthatinthe2030s,Chinesepopulationwillgoupto1.6billion,andwewillfacetheproblemwhowillfeedthelargepopulationinChinaaswellasintheworld.YuanLongpingannoucedtotheworldthatChinacouldsolvetheproblemandandhelptosolvetheproblemfortheworld.YuanLongpingputanendtohungerFatherofhybridriceReadingAPioneerForAllPeopleAlthoughheisoneofChina'smostfamousscientists,YuanLongpingconsidershimselfafarmer,forheworksthelandtodohisresearch.Indeed,hissunburntfaceandarmsandhisslim,strongbodyarejustlikethoseofmillionsofChinesefarmers,forwhomhehasstruggledforthepastfivedecades.DrYuanLongpinggrowswhatiscalledsuperhybridrice.In1974,hebecamethefirstagriculturalpioneerintheworldtogrowricethathasahighoutput.Thisspecialstrainofricemakesitpossibletoproduceone-thirdmoreofthecropinthesamefields.Nowmorethan60%ofthericeproducedinChinaeachyearisfromthishybridstrain.Paragraph1Readparagraph1andusetwowordstodescribetwoaspectsofYuanLongPing.occupationandachievementYuanLongpingisoneofthemostfamousscientistswhosejobistoworkthelandtodoresearchtoincreasetheoutputofrice.Paragraph1Borninapoorfarmer'sfamilyin1930,DrYuangraduatedfromSouthwestAgriculturalCollegein1953.Sincethen,findingwaystogrowmorericehasbeenhislifegoal.Asayoungman,hesawthegreatneedforincreasingthericeoutput.Atthattime,hungerwasadisturbingprobleminmanypartsofthecountryside.DrYuansearchedforawaytoincreasericeharvestswithoutexpandingtheareaofthefields.In1950,Chinesefarmerscouldproduceonlyfiftymilliontonsofrice.Inarecentharvest,however,nearlytwohundredmilliontonsofricewasproduced.Theseincreasedharvestsmeanthat22%oftheworld'speoplearefedfromjust7%ofthefarmlandinChina.DrYuanisnowcirculatinghisknowledgeinIndia,Vietnamandmanyotherlessdevelopedcountriestoincreasetheirriceharvests.Thankstohisresearch,theUNhasmoretoolsinthebattletoridtheworldofhunger.Usinghishybridrice,farmersareproducingharveststwiceaslargeasbefore.Paragraph2Whatwashisambition?why?Hisambitionwastoproduceenoughricetofeedpeoplebecausehungerwasaglobalissue.Paragraph2DrYuanisquitesatisfiedwithhislife.However,hedoesn'tcareaboutbeingfamous.Hefeelsitgiveshimlessfreedomtodohisresearch.Hewouldmuchratherkeeptimeforhishobbies.Heenjoyslisteningtoviolinmusic,playingmah-jong,swimmingandreading.Spendingmoneyonhimselforleadingacomfortablelifealsomeansverylittletohim.Indeed,hebelievesthatapersonwithtoomuchmoneyhasmoreratherthanfewertroubles.Hethereforegivesmillionsofyuantoequipothersfortheirresearchinagriculture.Paragraph3WhataremainlytalkedaboutYuanLongping?hishobbiesandviewofliveParagraph3Justdreamingforthings,however,costsnothing.LongagoDryuanhadadreamaboutriceplantsastallassorghum.Eachearofricewasasbigasanearofcornandeachgrainofricewasashugeasapeanut.DrYuanawokefromhisdreamwiththehopeofproducingakindofricethatcouldfeedmorepeople.Now,manyyearslater,DrYuanhasanotherdream:toexporthisricesothatitcanbegrownaroundtheglobe.Onedreamisnotalwaysenough,especiallyforapersonwholovesandcaresforhispeople.Paragraph4WhatareYuanlongping’sdreams?Oneofhisdreamsistoproduceakindofricethatcouldfeedmorepeople.Anotheroneistoexporthisricesothatitcanbegrownaroundtheworld.Paragraph4Para.4Hisdreams▲(riceplants)Astallassorghum▲(eachear)Asbigasanearofcorn▲(eachgrain)AshugeasapeanutHisoriginaldream

toexporthisricesothatitcanbegrownaroundtheglobe.Hisanotherdreamwhatmajor?1Whatsitu