袁隆平研究的杂交水稻单季亩产1138千克,农户小李有a亩地,去娘晚稻种常规稻,亩产只有685千克,今年晚稻改种杂交水稻,

太阳像一个火球

Yuan Longping (born September 7, 1930) is a Chinese agricultural scientist and educator, known for developing the
first hybrid rice varieties in the 1970s. His "hybrid rice" has since been grown in dozens of countries in Africa, America,
and Asia —providing a robust food source in high famine risk areas.
Mr. Yuan won the State Preeminent Science and Technology Award of China in 2000, the Wolf Prize in agriculture
and the World Food Prize in 2004. He is currently is DirectorGeneral of the China National Hybrid Rice R&D Center and
has been appointed as Professor at Hunan Agricultural University, Changsha. He is a member of the Chinese Academy
of Engineering, foreign associate of the US National Academy of Sciences (2006) and the 2006 CPPCC.
Mr. Yuan was born in Beijing, China. He loves playing Majong and the Erhu (Chinese violin), swimming and motorcycling.

Yuan Longping,China's Most Famous "Farmer"
It says every scientist cherishes a childhood dream indicating his or her future success,but for Yuan Longping,dubbed as "father of hybrid rice," the dream is that he cultivates rice as plump as peanuts,and farmers can relax in the cool shadow of big rice plants.
Yuan,71,won a 5 million yuan State Supreme Science and Technology Award today,known as the Nobel Prize in China,for his outstanding achievements in breeding high-yield hybrid rice,which has substantially increased China's grain output.
Yuan came up with the idea of hybridizing rice for the first time in the world in 1960s.Since then,50 percent of China's total rice cultivation fields have grown such rice,which added some 300 billion kilograms to the country's grain output.
Furrows grown on his sunburnt face,a slim figure and coiled-up trousers legs would confuse foreign reporters who came to interview the most famous scientist in China,who would rather be called "a farmer."
Indeed,like many Chinese farmers,Yuan in his 70s and has devoted most of his life growing rice in paddyfields,but unlike those farmers,he reaps the seed from experimental fields only for hybridizing rice.
The urbanite-turned-farmer graduated from Southwest Agriculture College in 1953 has his name related to the world's most advanced agricultural technology.Four minor planets,a listed seed company 's and a science college in China were named after him,which were the first time that a Chinese scientist's name is valued for its intellectual assets.
By lending his name to the Longping High-tech,a seed company,Yuan obtained a 5 per cent stake,or 2.5 million shares worth 2 million yuan,in the firm.
However,Yuan said his research requires the lifestyle of a farmer,or rather a migrating farmer,as he has conducted extensive research related to the cultivation of new strains of hybrid rice "Super Hybrid Rice" in some 10 provinces.
In the year 1999,more than 300 billion kilograms of grain were increased from about 240 million hectares of hybrid rice,which signified the success of his research.And this made Yuan firmly believe that China can surely feed her 1.2 billion population with her limited cultivated land.
The "Super Rice" yields are 30 percent higher than those of common rice.The record yield of 17,055 kilograms per hectare was registered in Yongsheng County in Yunnan in 1999.
But even after that achievement Yuan won't take a break.He has a dream,more realistic than that of his young age,that popularizing new strains of grain with higher yields around the world,can eliminate starvation on earth.
The UN Food and Agriculture Organization (FAO) has vowed to get involved in the work of spreading the coverage of Yuan's high- yield hybrid rice,which it considers the best way to increase the world's grain output.
The FAO's 1991 statistics show that 20 percent of the world's rice output was yielded from 10 percent of the world's rice fields,which grow hybrid rice.
"If the new strain was sown in the rest of the rice acreage,the present grain output around the world can be more than doubled.This can be a solution to the grain shortage," said the unselfish scientist.
In 1980,Yuan went to the United States at the invitation of the International Rice Research Institute to share his knowledge about the cultivation technology of hybrid rice.He was also employed in 1991 as the chief consultant of FAO to bring his research methods to other countries.
With the help of Chinese scientists,the acreage of hybrid rice in Viet Nam and India increased to 200,000 hectares and 150,000 hectares in 1999,respectively.
The rice research costs time to prove its value.At the age of 43,Yuan cultivated the world's first hybrid rice.At that time the country's grain yield was about 4,500 kilogram per hectare.
"The natural disaster and policy miscarriage further deteriorated starvation in China by then," Yuan recalled tearfully.
This is his motivation to stimulate his research.Largely due to his scientific progress,China's total rice output rose from 5.69 billion tons in 1950 to 19.47 billion tons last year.The growth rate of rice output far exceeded the population growth speed.
Some people estimate Yuan's actual fortune might amount to more than 100 million yuan (12 million U.S.dollars),making him one of the richest people in China.But he doesn't know for sure himself,for he seems not to care about his own assets than the rice harvest.
Some people asked him to move the focus of his research from improving amounts of hybrid rice to the quality and taste,which would be easier to do.But,the stubborn academician insisted that the amount of hybrid rice's per unit yield still outweighs the quality,for his foremost task is to improve the grain reserve in developing countries

A brief introduction简单介绍:Yuan Longping is known as China’s “father of hybrid rice”.It’s said that in China,we eat depending on “Two Ping” ---- Deng Xiaoping,who made the policy of System of ...

引号的作用主要有：
a．表示引语
如：妈妈说：“……”
b．表示特定称谓
如：这不愧是“东方明珠”呀!
c．表示特殊含义需要强调
d．表示否定和讽刺
如：你真像个“大队委”.

一个农民所拥有的品质,出名后仍然还保持着,所以显得独特而不同常人,不像其他人出名以后就彻底生活在了荣誉与权力的光圈里,把自己的根都忘了.

http://www.***.cn/search?complete=1&hl=zh-CN&newwindow=1&q=yuan+longping&meta=&aq=t&oq=yuan+long
Yuan Longping,China's Most Famous "Farmer"
It says every scientist cherishes a childhood dream indicating his or her future success,but for Yuan Longping,dubbed as "father of hybrid rice," the dream is that he cultivates rice as plump as peanuts,and farmers can relax in the cool shadow of big rice plants.
Yuan,71,won a 5 million yuan State Supreme Science and Technology Award today,known as the Nobel Prize in China,for his outstanding achievements in breeding high-yield hybrid rice,which has substantially increased China's grain output.
Yuan came up with the idea of hybridizing rice for the first time in the world in 1960s.Since then,50 percent of China's total rice cultivation fields have grown such rice,which added some 300 billion kilograms to the country's grain output.
Furrows grown on his sunburnt face,a slim figure and coiled-up trousers legs would confuse foreign reporters who came to interview the most famous scientist in China,who would rather be called "a farmer."
Indeed,like many Chinese farmers,Yuan in his 70s and has devoted most of his life growing rice in paddyfields,but unlike those farmers,he reaps the seed from experimental fields only for hybridizing rice.
The urbanite-turned-farmer graduated from Southwest Agriculture College in 1953 has his name related to the world's most advanced agricultural technology.Four minor planets,a listed seed company 's and a science college in China were named after him,which were the first time that a Chinese scientist's name is valued for its intellectual assets.
By lending his name to the Longping High-tech,a seed company,Yuan obtained a 5 per cent stake,or 2.5 million shares worth 2 million yuan,in the firm.
However,Yuan said his research requires the lifestyle of a farmer,or rather a migrating farmer,as he has conducted extensive research related to the cultivation of new strains of hybrid rice "Super Hybrid Rice" in some 10 provinces.
In the year 1999,more than 300 billion kilograms of grain were increased from about 240 million hectares of hybrid rice,which signified the success of his research.And this made Yuan firmly believe that China can surely feed her 1.2 billion population with her limited cultivated land.
The "Super Rice" yields are 30 percent higher than those of common rice.The record yield of 17,055 kilograms per hectare was registered in Yongsheng County in Yunnan in 1999.
But even after that achievement Yuan won't take a break.He has a dream,more realistic than that of his young age,that popularizing new strains of grain with higher yields around the world,can eliminate starvation on earth.
The UN Food and Agriculture Organization (FAO) has vowed to get involved in the work of spreading the coverage of Yuan's high- yield hybrid rice,which it considers the best way to increase the world's grain output.
The FAO's 1991 statistics show that 20 percent of the world's rice output was yielded from 10 percent of the world's rice fields,which grow hybrid rice.
"If the new strain was sown in the rest of the rice acreage,the present grain output around the world can be more than doubled.This can be a solution to the grain shortage," said the unselfish scientist.
In 1980,Yuan went to the United States at the invitation of the International Rice Research Institute to share his knowledge about the cultivation technology of hybrid rice.He was also employed in 1991 as the chief consultant of FAO to bring his research methods to other countries.
With the help of Chinese scientists,the acreage of hybrid rice in Viet Nam and India increased to 200,000 hectares and 150,000 hectares in 1999,respectively.
The rice research costs time to prove its value.At the age of 43,Yuan cultivated the world's first hybrid rice.At that time the country's grain yield was about 4,500 kilogram per hectare.
"The natural disaster and policy miscarriage further deteriorated starvation in China by then," Yuan recalled tearfully.
This is his motivation to stimulate his research.Largely due to his scientific progress,China's total rice output rose from 5.69 billion tons in 1950 to 19.47 billion tons last year.The growth rate of rice output far exceeded the population growth speed.
Some people estimate Yuan's actual fortune might amount to more than 100 million yuan (12 million U.S.dollars),making him one of the richest people in China.But he doesn't know for sure himself,for he seems not to care about his own assets than the rice harvest.
Some people asked him to move the focus of his research from improving amounts of hybrid rice to the quality and taste,which would be easier to do.But,the stubborn academician insisted that the amount of hybrid rice's per unit yield still outweighs the quality,for his foremost task is to improve the grain reserve in developing countries

这个能翻译的,同学.若是要写的话,加 Wo

Yuan Longping was born on September 7,1930.In the 1960s China experienced famined and he came up with an idea for hybridizing rice.In 1979,his technique for hybrid rice was introduced into the United States,the first case of intellectual property rights transfer in the history of new China.For his contributions,Yuan is sometimes called "The Father of Hybrid Rice" by the Chinese media.

杂交水稻是基因工程,不是细胞工程.
给你看一段历史资料,你就会明白的.
历史发展
　　袁隆平1971 年2月调到湖南省农业科学院专门从事杂交水稻研究工作.为加强和协调杂交水稻的科学研究,1984年6月成立了全国性的杂交水稻专门研究机构－－湖南杂交水稻研究中心,后又成立国家杂交水稻工程技术研究中心,均由袁隆平任中心主任至今.1995年他当选为中国工程院院士. 被称为杂交水稻之父.
　　1960年袁隆平从一些学报上获悉杂交高粱、杂交玉米、无籽西瓜等,都已广泛应用于国内外生产中.这使袁隆平认识到：遗传学家孟德尔、摩尔根及其追随者们提出的基因分离、自由组合和连锁互换等规律对作物育种有着非常重要的意义.于是,袁隆平跳出了无性杂交学说圈,开始进行水稻的有性杂交试验.
　　1960年7月,他在早稻常规品种试验田里,发现了一株与众不同的水稻植株.第二年春天,他把这株变异株的种子播到试验田里,结果证明了上年发现的那个“鹤立鸡群”的稻株,是地地道道的“天然杂交稻”.他想：既然自然界客观存在着“天然杂交稻”,只要我们能探索其中的规律与奥秘,就一定可以按照我们的要求,培育出人工杂交稻来,从而利用其杂交优势,提高水稻的产量.这样,袁隆平从实践及推理中突破了水稻为自花传粉植物而无杂种优势的传统观念的束缚.于是,袁隆平立即把精力转到培育人工杂交水稻这一崭新课题上来.
　　在1964年到1965年两年的水稻开花季节里,他和助手们每天头顶烈日,脚踩烂泥,低头弯腰,终于在稻田里找到了6株天然雄性不育的植株.经过两个春秋的观察试验,对水稻雄性不育材料有了较丰富的认识,他根据所积累的科学数据,撰写成了论文《水稻的雄性不孕性》,发表在《科学通报》上.这是国内第一次论述水稻雄性不育性的论文,不仅详尽叙述水稻雄性不育株的特点,并就当时发现的材料区分为无花粉、花粉败育和部分雄性不育三种类型.从1964年发现“天然雄性不育株” 算起,袁隆平和助手们整整花了6年时间,先后用1000多个品种,做了3000多个杂交组合,仍然没有培育出不育株率和不育度都达到100%的不育系来.袁隆平总结了6年来的经验教训,并根据自己观察到的不育现象,认识到必须跳出栽培稻的小圈子,重新选用亲本材料,提出利用“远缘的野生稻与栽培稻杂交”的新设想.在这一思想指导下,袁隆平带领助手李必湖于1970年11月23日在海南岛的普通野生稻群落中,发现一株雄花败育株,并用广场矮、京引66等品种测交,发现其对野败不育株有保持能力,这就为培育水稻不育系和随后的“三系”配套打开了突破口,给杂交稻研究带来了新的转机.
　　是将“野败”这一珍贵材料封闭起来,自己关起门来研究,还是发动更多的科技人员协作攻关呢?在这个重大的原则问题上,袁隆平毫不含糊、毫无保留地及时向全国育种专家和技术人员通报了他们的最新发现,并慷慨地把历尽艰辛才发现的“野败”奉献出来,分送给有关单位进行研究,协作攻克“三系”配套关.
　　1972年,农业部把杂交稻列为全国重点科研项目,组成了全国范围的攻关协作网.1973年,广大科技人员在突破“不育系”和“保持系”的基础上,选用1000多个品种进行测交筛选,找到了1000多个具有恢复能力的品种.张先程、袁隆平等率先找到了一批以IR24为代表的优势强、花粉量大、恢复度在90%以上的“恢复系”.
　　1973年10月,袁隆平发表了题为《利用野败选育三系的进展》的论文,正式宣告我国籼型杂交水稻“三系”配套成功.这是我国水稻育种的一个重大突破.紧接着,他和同事们又相继攻克了杂种“优势关”和“制种关”,为水稻杂种优势利用铺平了道路.
　　其实,袁隆平早有此虑.早在1986年,就在其论文《杂交水稻的育种战略》中提出将杂交稻的育种从选育方法上分为三系法、两系法和一系法三个发展阶段,即育种程序朝着由繁至简且效率越来越高的方向发展；从杂种优势水平的利用上分为品种间、亚种间和远缘杂种优势的利用三个发展阶段,即优势利用朝着越来越强的方向发展.根据这一设想,杂交水稻每进入一个新阶段都是一次新突破,都将把水稻产量推向一个更高的水平.1995年8月,袁隆平郑重宣布：我国历经9年的两系法杂交水稻研究已取得突破性进展,可以在生产上大面积推广.正如袁隆平在育种战略上所设想的,两系法杂交水稻确实表现出更好的增产效果,普遍比同期的三系杂交稻每公顷增产750－1500公斤,且米质有了较大的提高.至今,在生产示范中,全国已累计种植两系杂交水稻1800余万亩.目前,国家“863”计划已将培矮系列组合作为两系法杂交水稻先锋组合,加大力度在全国推广.
　　1998年8月,袁隆平又向新的制高点发起冲击.他向朱总理提出选育超级杂交水稻的研究课题.朱总理闻讯后非常高兴,当即划拨1000万元予以支持.袁隆平为此深受鼓舞.在海南三亚农场基地,袁隆平率领着一支由全国十多个省、区成员单位参加的协作攻关大军,日夜奋战,攻克了两系法杂交水稻难关.经过近一年的艰苦努力,超级杂交稻在小面积试种获得成功,亩产达到800公斤,并在西南农业大学等地引种成功.目前,超级杂交稻正走向大面积试种推广中.

Mr.Yuan was born in Beijing,China.He loves playing Mahjong and the Erhu (Chinese violin),swimming and motorcycling.
Born in 1930 and a graduate from the Southwest Agriculture Institute in 1953,Yuan began his teaching career at an agriculture school in Anjiang,Hunan Province.
He came up with an idea for hybridizing rice in the 1960s,when a series of natural disasters and inappropriate policies had plunged China into an unprecedented famine that caused many deaths.
Since then,he has devoted himself to the research and development of a better rice breed.
In 1964,he happened to find a natural hybrid rice plant that had obvious advantages over others.Greatly encouraged,he began to study the elements of this particular type.
In 1973,in cooperation with others,he was able to cultivate a type of hybrid rice species which had great advantages.It yielded 20 percent more per unit than that of common ones.
The next year their research made a breakthrough in seeding.They successfully developed a set of technologies for producing indica (long-grained non-glutinous) rice,putting China in the lead worldwide in rice production.For this achievement,he was dubbed the "Father of Hybrid Rice."
His contribution to the mankind is enormous.By his achievement,the Earth is able to produce extra rice equivalent to the food requirement by tens of millions of population.
At present,as much as 60 percent of China's total rice grown is Yuan Longping’s hybrid rice species.More rice so produced is enough to feed 60 million people.Worldwide,20% of rice comes from the rice species created by hybrid rice following his methodology.
The "Super Rice" Yuan is now testing yields 30 percent higher than those of common rice.
仅供参考一下吧,我也没工夫改写

直接引用别人的话.

为人类的生存提供了物质基础

21.这篇文章叙写了被人们视为“神农”的袁隆平研究杂交水稻的事迹.22．（1）睡梦中都想着寻找,形容迫切地希望着.（2）功业建立了,名声也有了.23．一个热衷于自己事业的人,他的讲话的话题永远自己的事业,讲起来当然就...

解题思路：基因（遗传）的多样性是指物种的种内个体或种群间的基因变化，不同物种之间基因组成差别很大，同种生物如野生大豆和美国栽培大豆之间基因也有差别，每个物种都是一个独特的基因库．

我国动物、植物和野生亲缘种的基因多样性十分丰富，为动植物的遗传育种提供了宝贵的遗传资源．如我国科学家袁隆平院士利用野生水稻与普通栽培水稻多次杂交，培育出产量很高的杂交稻新品种，表明生物遗传基因的多样性是培育农作物新品种的基因库．
故选：C

点评：
本题考点： 生物的多样性的内涵．

考点点评： 解答此类题目的关键是理解生物多样性的内涵．

“美丽”一次的多次出现时期强调作用.
我认为袁隆平与美丽是存在联系的.
袁隆平的三个梦想是美丽.
他为实现梦想而在期间努力的付出是美丽的.
三个梦想分别是：
1、六岁时——“将来一定要去学农”；
2、二十世纪六十年代——“所有人不再挨饿”；
3、现在——①把超级杂交水稻培育成功；
②把杂交水稻推向全世界,造福全人类.

基因的多样性

用“偏偏”表现他迎难而上的决心,“硬骨头”突出了这一任务的艰巨.

2010年,在袁隆平80岁生日晚会上致辞——怀念自己母亲.这是一篇催人泪下的美文,让我们看到了这位伟大的科学家最柔软的一面,他让我们知道了,这位科学巨人是站在谁的肩膀上,才成长的如此伟岸.
有一封信,虽然时过境迁,但其中饱含的母子深情却催人泪下,让无数读者铭记在心,永不能忘,这就是我国著名科学家、世界“杂交水稻之父”袁隆平的《稻子熟了,妈妈,我想您》.
这是袁隆平自己80岁生日晚会上的致辞,这篇致辞以书信体的形式,尽情倾诉了对母亲的思念、赞美、敬佩、感激、愧疚之情.深情满怀,声情并茂,感人肺腑.
文章通篇充满了对母亲的由衷赞美、大爱之情,为我们塑造了一位知识广博、通情达理、深明大义,全力支持儿子远离都市,扎根偏远小村搞杂交水稻的伟大母亲形象.细节的描写使母亲的音容宛在：当儿子面临大学毕业分配时,母亲陪着儿子脸贴着地图,找到安江这个小地方,并嘱咐儿子要作好吃苦的思想准备.母亲70岁时,从繁华的都市来到偏远山村,这位大家闺秀,陪伴着儿子一家在山村吃苦受累,走不惯乡间田埂,竟让小孙孙牵着手.当母亲带着未能最后见儿子一面的遗憾离去后,又安葬在儿子为之奉献青春的安江.
这样的母亲是天底下最伟大的母亲,正是因为有了母亲的无私支持,才成就了袁隆平的杂交水稻.
文章字里行间充溢着对母亲的感恩之情.“三个每当”的排比句,酣畅淋漓的叙述,书写自己取得辉煌成就时,最想感激的是母亲,对自己影响最深的是母亲；三个“无法想象”的排比小段,详述了母亲的培养教育之恩：作者衷心感谢母亲的英语启蒙,才能够用超越时代的视野,去寻访遗传学大师孟德尔和摩尔根；作者感谢母亲的执著和鼓励.在颠沛流离的岁月中,才获得了系统的现代教育,获得了在大江大河翱翔的胆识；作者感谢母亲从小就在他幼小的心中播下了理想的种子,为日后用一粒种子改变世界奠定了坚实的思想基础.细细读来,我们深切感受到：这种赞美、敬佩、感激之情,都是从作者心灵深处自然流淌出来的,情真意挚,催人泪下.
文章在往事的回忆中渗透着作者对母亲的愧疚之情.自古忠孝不能两全,当忠和孝不可兼得时,作者坚决而无奈地选择了忠于国家、献身人民.作者满怀内疚之情,叙述了那个难忘的中秋节,作者正召集全国研究杂交水稻的同行们开会,母亲正处弥留之际,尽管天不亮就往安江赶,还是没有见上妈妈最后一面.“太晚了,一切都太晚了,我真的好后悔”,两个“太晚”反复出现,愧疚之情溢于言表.“这么多年哪,为什么我就不能少下一次田,少做一次试验,少出一天差,坐下来静静地好好陪陪您,哪怕,哪怕就一次.”连用三个“少”,两个“哪怕”,极其真切地表达了内心的痛悔之情.可是这位伟大的科学家心中的大爱之情却全部献给了国家和民族.
文章通篇采用第二人称,巧用呼告式抒情,就像母子二人在面对面倾诉.文章通过夹叙夹议、抒情的手法,来诉说母子深情,抒发思念之情.作者深情叙述了在母亲支持下来到安江,高龄的母亲为儿子能安心搞研究,从大城市来到小山村、帮助带大孙子,足见母亲是一位识大体顾大局的不平凡女性.作者回忆母亲逝世时写道：“妈妈,当时您一定等了我很久,盼了我很长时间,您一定有很多话要对儿子说,有很多事要交代.”这段议论,感情逼真,动人心魄.“稻子熟了,妈妈,您能闻到吗?安江可好?哪里的田埂是不是还留着熟悉的欢笑?”设问式抒情,表达了对九泉之下母亲的无限关切,无限思念,表达了慈母与赤子情深似海————纵使阴阳相隔,时光荏苒21载也不能减损.
文章标题别具匠心,以“稻子熟了,妈妈,我想您”为行文线索,以对母亲的思念、敬佩、感激、歉疚为感情线索.这个标题既暗示作者在杂交水稻攻关中取得的新成就,又表达了对母亲的深深怀念之情.
大家都知道著名科学家袁隆平的杂交水稻对全世界人民作出了巨大贡献,也知道他会跳舞,会拉小提琴,却不知道他的文采竟然也是如此的不寻常.这是一篇不可多得的催人泪下的美文.天下怀念母亲的文章多矣,而袁氏之作让我们看到了这位了不起的科学家最柔软的一面,还让我们知道了,这位科学巨人是站在谁的肩上,才成长得如此的伟岸.天下伟大的母亲们啊,我们该怎样歌颂你们,才能淋漓地倾诉衷肠呢!

D

略

原材料传达了两层意思：第一层的含义是热爱工作、热爱生活；第二层的含义是人必须拥有美好的梦想。
原材料揭示了命题者的意图，考生可以从几个方面着手写作：（1）梦想是美好的，但必须努力去创造，才能使“梦想”变成“现实”；（2）人生必须拥有梦想，阐述梦想的重要性和必要性；（3）梦想毕竟还是梦想，不能代替现实，人不能靠梦想活着，否则就会变成“痴人说梦”；（4）信念有多高、梦想就有多大。年轻人要树立崇高的信念，才能去构建美好的理想。
考生既可以将两层意思融合起来写作，又可以有侧重地去写第一层或第二层的意思。从考生反映的情况看，只要准确把握最佳切入点，大部分考生都会有话可说，不容易偏题、离题。如果能善于发挥语言驾驭能力，写作时力求语言精妙、构思精巧和事例典型，不仅可以拿到基础分，还可以拿到发展分。

One possible version:
Yuan Longping
Born on September 7, 1937 in Chongqing, Yuan Longping was from a poor farmer’s family. Having graduated from Southwest Agriculture College in 1953, he was sent to work as a teacher in the Agriculture School in the west of Hunan. He began his research in rice in 1964 and got the First National Special Prize for Invention in 1981. He is honored as “Father of Hybrid Rice” by the international friends. Famous as he is, he cares little for money and fame.

B

不是这样的,设问句不是反问句,不要弄错了,第一个同学是正确的,应该就是"在袁隆平院士的领导下,中国的水稻研究一直居于世界先进水平吗? 是的. ”设问句的意思就是提出问题并且解答,这个才是设问句.

3.Yuan Longping experimented with different types of rice.7.Norway is at the top of the list,while the US is at number 7.8.Mencius believed|thought thst people were more important than rulers.

培育杂交之种植水稻的袁隆平被誉为"当代神农父".
我最爱读的课外书有,和.

集体主义精神.感恩社会、

解题思路：此题考查的知识点是生物的多样性．解答时可以从生物多样性的表现方面来切入．

生物多样性通常有三个层次的含义，即生物种类的多样性、基因（遗传）的多样性和生态系统的多样性．基因的多样性是指物种的种内个体或种群间的基因变化，不同物种（兔和小麦）之间基因组成差别很大，同种生物如野生水稻和栽培水稻之间基因也有差别，每个物种都是一个独特的基因库．我国动物、植物和野生亲缘种的基因多样性十分丰富，为动植物的遗传育种提供了宝贵的遗传资源．如利用野生水稻种群对草丛矮缩病具有较强的抗性的基因和栽培水稻进行杂交，从而培育出抗草丛矮缩病的水稻新品种．表明生物基因的多样性是培育农作物新品种的基因库．
故选：C．

点评：
本题考点： 生物的多样性的内涵．

考点点评： 解答此类题目的关键是理解生物多样性的内涵．

一共耗费了九年时间才真正培育出了杂交水稻

解题思路：A、根据同素异形体和同位素概念的区别来回答；
B、根据氧化还原反应的有个关知识来回答；
C、根据电解池的工作原理来判断；
D、根据电荷守恒来判断离子方程式的正误．

A、同素异形体是同种元素组成的不同单质间的互称，四种核素
13658Ce、
13858Ce、
14058Ce、
14258Ce，它们互称为同位素，故A错误；
B、Ce⁴⁺有氧化性，碘离子具有还原性，二者不能共存于一个溶液中，故B错误；
C、电解熔融状态的CeO₂时，在阴极上是Ce⁴⁺得电子生成单质铈的过程，即在阴极获得铈，故C正确；
D、根据氧化性：Ce⁴⁺＞Fe³⁺来判断反应能发生，应该为：Ce⁴⁺+Fe²⁺═Ce³⁺+Fe³⁺，故D错误．
故选C．

点评：
本题考点： 电解原理；同素异形体；氧化还原反应．

考点点评： 本题是一道信息给予题，考查学生分析和解决问题的能力，难度不大．

表示具有特殊含义的词语

袁隆平培育的杂交水稻可以养活16倍普通水稻可以养活的人

1）点‘痴’”中痴在文中的含义是：执着,认准的路—定要走到底.
2）本文第5段运用了;说明这种表达方式.这些数字不能去掉.因为：用这些数字,会使作者要表达的主题更加明确、清楚,有助于读者更好地了解文章的主题.
3）不矛盾.“现实中农村,贫瘠, 疮痍”是既是铺垫也是对比,更加突出袁隆平坚定执著的追求.
4）袁隆平：凭着他百折不挠的执着精神和坚忍不拔的毅力,不仅解决了地球上四分一之人的吃饭问题,也使贫瘠, 疮痍的农村变得更加美丽.
纯原创,请采纳,谢谢

B

解题思路：此题考查的知识点是生物多样性的价值．解答时可以从生物多样性的意义方面来分析．

生物多样性通常有三个层次的含义，即生物种类的多样性、基因（遗传）的多样性和生态系统的多样性．基因的多样性是指物种的种内个体或种群间的基因变化，不同物种（水稻和小麦）之间基因组成差别很大，同种生物如野生水稻和普通水稻之间基因也有差别，每个物种都是一个独特的基因库．我国动物、植物和野生亲缘种的基因（遗传）多样性十分丰富，为动植物的遗传育种提供了宝贵的遗传资源．如我国科学家袁隆平用野生水稻与普通水稻杂交，培育出了高产的杂交水稻，表明生物基因（遗传）的多样性是培育农作物新品种的基因库．
故选：D

点评：
本题考点： 生物的多样性的内涵．

考点点评： 解答此类题目的关键是理解基因的多样性为动植物的遗传育种提供了宝贵的遗传资源．

解题思路：生物多样性通常有三个层次的含义，即生物种类的多样性、基因的多样性和生态系统的多样性．

基因的多样性是指物种的种内个体或种群间的基因变化，不同物种（水稻和小麦）之间基因组成差别很大，同种生物如野生水稻和普通水稻之间基因也有差别，每个物种都是一个独特的基因库．我国动物、植物和野生亲缘种的基因多样性十分丰富，为动植物的遗传育种提供了宝贵的遗传资源．如我国科学家袁隆平用野生水稻与普通水稻杂交，培育出了高产的杂交水稻，表明生物基因的多样性是培育农作物新品种的基因库．
故选：A．

点评：
本题考点： 生物的多样性的内涵．

考点点评： 解答此类题目的关键是理解生物多样性的内涵，明确杂交育种是利用了基因的多样性．

解题思路：生物多样性通常有三个层次的含义，即生物种类的多样性、基因（遗传）的多样性和生态系统的多样性．基因的多样性是指物种的种内个体或种群间的基因变化，不同物种（兔和小麦）之间基因组成差别很大，同种生物如野生水稻和栽培水稻之间基因也有差别，每个物种都是一个独特的基因库．我国动物、植物和野生亲缘种的基因多样性十分丰富，为动植物的遗传育种提供了宝贵的遗传资源．如利用野生水稻种群对草丛矮缩病具有较强的抗性的基因和栽培水稻进行杂交，从而培育出抗草丛矮缩病的水稻新品种．表明生物基因的多样性是培育农作物新品种的基因库．

袁隆平利用野生水稻种群对草丛矮缩病具有较强的抗性的基因和栽培水稻进行杂交，从而培育出抗草丛矮缩病的水稻新品种．表明生物基因的多样性是培育农作物新品种的基因库．A正确．
故选：A．

点评：
本题考点： 生物的多样性的内涵．

考点点评： 解答此类题目的关键是理解生物多样性的内涵．

第一、面对饥荒,他忧国忧民,萌发培养杂交水稻,于是他勤奋学习,立志攻坚.
第二、面对西方舆论的压力,他反复研究大胆设想表现出了不畏困难、迎难而上的科学精神.
第三、整个研究历时十多年,其中单是寻找雄性不育的水稻植株就用了六年之久.
第四、“十年动乱”期间,不顾个人安危,继续实验,终于获得成功.

The great man I admire ---Yuan Longping

生物多样性通常有三个层次的含义，即生物种类的多样性、基因的多样性和生态系统的多样性．基因的多样性是指物种的种内个体或种群间的基因变化，不同物种（水稻和小麦）之间基因组成差别很大，同种生物如野生水稻和普通水稻之间基因也有差别，每个物种都是一个独特的基因库．我国动物、植物和野生亲缘种的基因多样性十分丰富，为动、植物的遗传育种提供了宝贵的遗传资源．如我国科学家袁隆平用杂交技术，培育出了高产的杂交水稻，表明生物基因的多样性是培育农作物新品种的基因库．
故选：B

成功是奇迹

A

D

Yuan Longping (born September 7,1930) is a Chinese agricultural scientist and educator,known for developing the
first hybrid rice varieties in the 1970s.His "hybrid rice" has since been grown in dozens of countries in Africa,America,
and Asia —providing a robust food source in high famine risk areas.
Mr.Yuan won the State Preeminent Science and Technology Award of China in 2000,the Wolf Prize in agriculture
and the World Food Prize in 2004.He is currently is DirectorGeneral of the China National Hybrid Rice R&D Center and
has been appointed as Professor at Hunan Agricultural University,Changsha.He is a member of the Chinese Academy
of Engineering,foreign associate of the US National Academy of Sciences (2006) and the 2006 CPPCC.
Mr.Yuan was born in Beijing,China.He loves playing Majong and the Erhu (Chinese violin),swimming and motorcycling.

研究出籼型杂交水稻,使水稻到产量大大增加.被称为第一魔稻

有两层意思,一种是在大多数人的印象中,农民都是迷信的,跟科学是背道而驰的；一种是科学家都是那种戴着眼镜,斯斯文文的,跟面朝黄土背朝天的农民不沾边.
这个标题主要表现出袁隆平这位伟大的科学家,用科学的方式农民,给国家带来的效益和影响是远大的.
也告诉所有的人,科学与农民,并不是相冲突的两个角色,而是相结合的.
共同努力,共同进步,这才是科学与农民的最终目的.

鸷禽毛翮摧,不见翔云姿.衰容蔽逸气,孑孑无人知.
寂寞草玄徒,长吟下书帷.为君发哀韵,若扣瑶林枝.

因为他成功地使用两种不同的水稻杂交出一种产量很大的水稻,叫什么忘记了,后来因为他的杂交水稻对人类贡献大,解决了世界人口粮食的问题所以被授予杂交水稻之父的称号!