英语课件：人教新课标版必修四Unit2教材背景链接.ppt

Unit2Workingtheland教材背景链接,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。,YuanLongpingsroadtosuperhybridrice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。,YuanLongpingwasborninapoorfarmersfamilyin1930andgraduatedfromSouthwestAgriculturalCollegein1953.ThenhebeganhisteachingcareeratanagricultureschoolinAnjiang，HunanProvince.Hecameupwithanideaofhybridizingriceinthe1960s，whenaseriesofnaturaldisastersandimproperpolicieshadplunged(使陷入)Chinaintoafamine(饥荒)thatcausedmanydeaths.,Sincethen，hehasdevotedhimselftotheresearchanddevelopmentofabetterricebreed.In1964，hehappenedtofindanaturalhybridriceplantthathadobviousadvantagesoverothers.Greatlyencouraged，hebegantostudytheelementsofthisparticulartype.In1973，incooperationwithothers，hewasabletocultivate(培育)atypeofhybridricespecieswhichhadgreatadvantages.,Ityielded20percentmoreperunitthanthatofcommonones.Thenextyeartheirresearchmadeabreakthroughinseeding.Theysuccessfullydevelopedasetoftechnologiesforproducinghybridrice，puttingChinaintheleadworldwideinriceproduction.Forthisachievement，hewasnamedthe“FatherofHybridRice”,In1979，theirtechniqueforhybridricewasintroducedintotheUnitedStates，thefirstcaseofintellectualpropertyrightstransferinthehistoryofnewChina.Atpresent，asmanyas50%ofChinastotalricefieldsgrowYuanLongpingshybridricespecies，whichyield60%ofthericeproductioninChina.,DuetoYuanshardwork，Chinastotalriceoutputrosefrom50milliontonsin1950tonearly200milliontonsinrecentyears.Theannualyieldisenoughtofeed60millionpeople.YuanLongpingwasnamedawinneronMarch29,2004，oftheannualUS$250,000WorldFoodPrizeforhisworkinproducinghighproductionrice.,InthesameyearhegotWolfPrizeinagricultureinIsrael.Helovesplayingmahjongandtheviolinandswimming.Hesaidhewouldgoonworkinghardathissuperhybridriceproject.,Questions：Readthepassageandtellthefollowingsentencestrue(T)orfalse(F)1ThepassageismainlyabouthowYuanLongpingcultivatedhybridricesuccessfully.()2BeforeYuandevotedhimself