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时间:2020-03-26
《英语课件:人教新课标版必修四Unit2教材背景链接.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit2Workingtheland教材背景链接名言佳句Nopains,nogains.不劳无获。Asamansows,soheshallreap.种瓜得瓜,种豆得豆。Knowledgerequiresrepeatedexplorations,andfarmlandneedsintensivecultivation.知识需要反复探索,土地需要辛勤耕耘。类文欣赏YuanLongping’sroadtosuperhybridrice袁隆平,中国工程院院士,我国当代杰出的农业科学家,享誉世界的“杂交水稻之父”。他工作50多年来所取得的科研成果使我国杂交水稻研
2、究及应用领域领先世界水平,不仅解决了中国粮食自给的难题,也为世界粮食安全做出了杰出贡献。YuanLongpingwasborninapoorfarmer’sfamilyin1930andgraduatedfromSouthwestAgriculturalCollegein1953.ThenhebeganhisteachingcareeratanagricultureschoolinAnjiang,HunanProvince.Hecameupwithanideaofhybridizingriceinthe1960s,whenaseriesofnatural
3、disastersandimproperpolicieshadplunged(使陷入……)Chinaintoafamine(饥荒)thatcausedmanydeaths.Sincethen,hehasdevotedhimselftotheresearchanddevelopmentofabetterricebreed.In1964,hehappenedtofindanaturalhybridriceplantthathadobviousadvantagesoverothers.Greatlyencouraged,hebegantostudytheele
4、mentsofthisparticulartype.In1973,incooperationwithothers,hewasabletocultivate(培育)atypeofhybridricespecieswhichhadgreatadvantages.Ityielded20percentmoreperunitthanthatofcommonones.Thenextyeartheirresearchmadeabreakthroughinseeding.Theysuccessfullydevelopedasetoftechnologiesforprod
5、ucinghybridrice,puttingChinaintheleadworldwideinriceproduction.Forthisachievement,hewasnamedthe“FatherofHybridRice”.In1979,theirtechniqueforhybridricewasintroducedintotheUnitedStates,thefirstcaseofintellectualpropertyrightstransferinthehistoryofnewChina.Atpresent,asmanyas50%ofChi
6、na’stotalricefieldsgrowYuanLongping’shybridricespecies,whichyield60%ofthericeproductioninChina.DuetoYuan’shardwork,China’stotalriceoutputrosefrom50milliontonsin1950tonearly200milliontonsinrecentyears.Theannualyieldisenoughtofeed60millionpeople.YuanLongpingwasnamedawinneronMarch29
7、,2004,oftheannualUS$250,000WorldFoodPrizeforhisworkinproducinghighproductionrice.InthesameyearhegotWolfPrizeinagricultureinIsrael.Helovesplayingmahjongandtheviolinandswimming.Hesaidhewouldgoonworkinghardathissuperhybridriceproject.Questions:Readthepassageandtellthefollowingsenten
8、cestrue(T)orfalse(F).1.Thepassageismainl
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