转基因食品的危害英文演讲稿300词左右
你好，朋友。
很高兴能为你解答。
Hi
Everyone
Today. I will show you something about GM foods. The full name that GM foods is Genetically Modified Foods. This is a hot topic.let’s start to the present situation of GM foods . According to researchers.People who feel intimidated by math may be less able to understand messages about genetically modified foods and other health-related information.Parrott Distinguished Professor of Communication Arts and Sciences and Health Policy and Administration. said :My goal is to help people make informed decisions and to do that, they need to understand and comprehend messages,Food policy, in particular, interests me because having enough food to feed people is a really big issue that we're facing. Scientists argue that genetically modified foods are safe for consumption and overregulated.the overregulation of GM crops actually hurts the environment, reduces global health and burdens the consumer.(switch)Farmers have witnessed the advantages of GM crops firsthand through increases in their yields and profit, and decreases in their labor, energy consumption, pesticide use and greenhouse gas emissions. Farmers growing genetically modified rice in field trials in China report higher crop yields, reduced pesticide use and fewer pesticide-related health problems, according to a study by researchers in China and at Rutgers University and the University of California, Davis.Measured on a per hectare (2.471 acres) basis, the quantity and cost of pesticides applied to the conventional rice was 8 to 10 times as high as that applied to the insect-resistant genetically modified rice. What we found was when genes for enhancing the amount of antioxidants and vitamin C in fresh produce were transferred by intragenic methods, consumers are willing to pay 25 percent more than for the plain product (with no enhancements). That is a sizable increase, said Huffman, distinguished professor of economics.（switch）The basic idea is that when consumers saw that the intragenic produce had elevated healthful attributes, they were willing to pay more for them.But ,Consumers were not willing to pay more if those enhancements were introduced through transgenic methods. In my opinion, GM food have good prospects. To eliminate the misunderstanding on GM food, scientists should strengthen communication with people. With simple and easy to understand words, tell us that GM food is not so terrible. One day, GM food will benefit mankind.
五年级转基因有什么坏处演讲稿500字
,,,请问 还招 袋里 吗OOSSYG
转基因食品是如何定义的呢
2Food security under threat: global response needed Climate change and commodity speculation are among the main factors threatening food security inside and outside the EU, according to a European Parliament resolution adopted on Thursday. MEPs call for urgent measures to combat food price manipulation and ensure that food production is maintained in the EU. Droughts, floods, fires and storms, on a greater scale than in the past, are reducing agricultural capacity all over the world, says the resolution. Soil and water management must be improved to prevent loss of farmland, and the Commission should monitor national climate change mitigation measures, believe MEPs. Tackling speculationMEPs criticise speculation in food commodities, agricultural raw materials and energy markets, all of which puts food security at risk. The G20 is urged to work for the convergence of market regulations by involving countries that are not part of the G20 in the fight against food price manipulation.Parliament asks the Commission to consider giving the new European Security and Markets Authority more power to prevent abuses in commodity markets. Dealing in food commodities should be limited to investors who have a genuine link with agricultural markets, MEPs believe.In addition, MEPs call on national governments not to impose curbs on exports, as these provoke greater uncertainty in the markets and disrupt world markets, and therefore have the potential to drive prices up further at global level. Helping EU farmersTo guarantee food security in the EU, a strong Common Agricultural Policy is needed, says the resolution. Declining farm incomes, caused by higher production costs to meet health, environmental and animal welfare standards, need to be urgently addressed to ensure there are farmers in the EU in the future. Market intervention tools, such as intervention and strategic stocks, must be part of the policy, says Parliament.Support for farmers in developing countriesSince agriculture is a key economic sector in the developing world, MEPs call for a larger proportion of the financial aid for this sector to be used to support more effective and sustainable farming practices. They add that land ownership should be promoted to reduce poverty and increase food security.The resolution was approved by show of hands. 3New threat to global food security as phosphate supplies become increasingly scarceA new report from the Soil Association reveals that supplies of phosphate rock are running out faster than previously thought and that declining supplies and higher prices of phosphate are a new threat to global food security. ‘A rock and a hard place: Peak phosphorus and the threat to our food security’ highlights the urgent need for farming to become less reliant on phosphate rock-based fertiliser. [1]Intensive agriculture is totally dependent on phosphate for the fertility needed to grow crops and grass. Worldwide 158 million tonnes of phosphate rock is mined every year, but the supply is finite. Recent analysis suggests that we may hit ‘peak’ phosphate as early as 2033, after which supplies will become increasingly scarce and more expensive. [2]This critical issue is missing from the global policy agenda - we are completely unprepared to deal with the shortages in phosphorus inputs, the drop in production and the hike in food prices that will follow. Without fertilisation from phosphorus it has been estimated that wheat yields could more then halve in coming decades, falling from nine tonnes a hectare to four tonnes a hectare. The current price of phosphate rock is approximately twice that of 2006. When demand for phosphate fertiliser outstripped supply in 2007\\\/08, the price of rock phosphate rose 800%.In Europe we are dependent on imports of rock phosphate, having no deposits of our own, but the geographical concentration of reserves adds further uncertainty to the future security of our sources. In 2009, 158 million metric tonnes of phosphaterock was mined worldwide. 67% of this resource was mined in just three countries - China (35%), the USA (17%) and Morocco and Western Sahara (15%). China has now restricted, and the USA has stopped, exports of phosphate. [3]Author of the report, Dr. Isobel Tomlinson, said: A radical rethink of how we farm, what we eat and how we deal with human excreta, so that adequate phosphorus levels can be maintained without reliance on mined phosphate, is crucial for ensuring our future food supplies.‘A rock and a hard place’ sets out the actions needed to close the loop on the phosphorus cycle. These include:Changing how we farmDifferent farming systems vary enormously in their reliance on mined phosphate. Organic farms are more resilient to the coming phosphorus rock ‘shock’, as it can only be used as a supplement to nutrient recycling (including crop rotations, green manures, and composting), and not as a replacement. Organic crops generally have a lower fertiliser requirement than non-organic crops, with a greater capacity to scavenge for nutrients through denser and deeper root systems.Changing what we eatEating less meat can reduce the demand for mined phosphate. This is because vegetable-based production is more efficient in its use of phosphorus then livestock production. Although different types of meat have different levels of mined phosphate demand depending on the farming system used to produce them. Meat from livestock grazed on grassland that has not been fertilised with artificial fertilisers, will perform much better than meat from livestock grazed on fields that have been, or livestock fed on grain grown using artificial fertilisers.Changing how we deal with human exretaThe report recommends a radical change in the way we treat human exreta and the need to abandon our current ‘flush-and-forget’ toilet systems in favour of Ecological Sanitation. The report also calls for a change to EU organic regulations to allow the use of human sewage – rich in ‘natural’ phosphate - on agricultural land to ensure phosphate levels are maintained. Globally only 10% of human waste is returned to agricultural soils. Urine alone contains more than 50% of the phosphorus excreted by humans.
食物安全运输的演讲稿
餐饮集团始终倡导健康饮食概念，也是最早提出“生命不能打折”誓言的。
自成立之日起，对所有食物的原材料和货源就有一套完善且极为严格的审查、选择和检验体系，保证了所有食物都符合绿色无公害的标准。
能够为提供原料的供货商，都由企业层层把关、筛选。
从谷类原料、禽畜、海鲜到调味料，皆要得到HACCP、国际质量体系的认证。
在食物来源的选择上，俏江南只与信誉高的知名生产商进行合作，并建立了良好的长期合作监控机制，从源头上保证了所有食物的高品质、高要求。
在食物入库过程中，俏江南有专人进行多工序严格的检验，只有符合绿色、的食物才能最终呈现给俏江南的顾客。
在食物的存放、加工等过程中，俏江南也都有严格的操作制度并有专人监督执行，保证了所有食物的新鲜性和无污染性。
在俏江南发展的历程中，没有出现过一次食物安全问题，没有一位客人对俏江南的食物品质提出过意见。
随着社会经济和生活水平的提高，人们对食品安全问题也更加关注，作为餐饮企业，如何在激烈的市场竞争中利用好食品安全这把双刃剑提升企业的价值是今后企业面临的一个重要课题。
而源于然、崇尚健康的有机食品已经日益受到人们的青睐。
俏江南因此提出“倡导安全饮食，共享”的健康新理念，俏江南认为有机食品势必成为未来食品发展的一个主流趋向，同时倡导餐饮企业以安全饮食为己任，与顾客共享健康。
有机食品解析： 当前，都市人纷纷开始向往起自然淳朴的“”方式，“有机穿衣”、“有机进食”、“有机护肤”、“有机消费”等新名词不断涌现：吃着无公害的有机食品、穿着纯棉的有机衣服、用着有机无添加的护肤品……，当然，有机食品也成为现在人们所追求的主流。
说到有机食品，可能大多数人都听说过，但是到底什么才算是有机食品呢
通俗的讲，所谓有机食品，就是那些不使用化肥、农药、 激素、抗生素等人工合成的化学物质，且不使用转基因技术的食品，是真正绿色、健康的食品。
我们都知道，化学农业保障了粮食安全，养活了更多的人口，极大的丰富了我们的餐桌。
但是也让很多不法者有机可乘，在诸多加工链条中添加对人们健康的威胁。
此外，农业中化学物质的滥用行为，也破坏了生态环境，进一步威胁人们健康和生存的环境。
因此，提倡有机生活就要从有机食品开始。
俏江南集团始终遵循将顾客需求和健康置之首位的原则，推出有机菜品，为顾客带来美食健康新选择。
选择有机食品的八大理由： 1.健康：研究显示有机食品含有较多铁质、镁质、钙质等微量元素及维生素C，而重金属及致癌的硝酸盐含量则较低。
2.味道好：有机农业提倡保持产品的天然成份，因此可保持食物的原来味道。
3.避免爆发类似禽流感一类的疾病：密集式的动物饲养方式令疾病很容易散播，而有机农业要求开放的动物饲养方式则可以令动物有空间伸展活动，增强动物的抵抗力，减低疾病散播机会。
4.含有较少化学物质：在有机生产的理念下，所有生产及加工处理过程均只允许在有限制的情况下施用化学物质。
5.生产过程不含成分：在有机生产的理念下，所有生产及加工处理过程中均不可使用任何生物及其衍生物。
6.对环境及生态有利：有机生产鼓励使用天然物料，适量施肥及灌溉，减少资源浪费，提高农场内及其周边的。
7.保护土壤：土壤退化及污染日趋严重，而土壤作为生产粮食的基本要素，人类必须对之加以保护。
有机农业要求的措施是希望恢复和维持土壤的生命力，令土壤能继续为人类提供足够而优质的食物。
8.价格实惠：有机生产规模较小，人力投资大，风险成本及运输成本也相对高昂，因此售价自然比较贵。
但是，常规农业并没有将环境成本如污染、泥土肥力下降等损害计算在内，如果将环境成本反映在价格上，常规农产品和的价格会相若。
更为重要的一点是，如果长期食用健康绿色食品，可以明显感觉免疫力增加，体质也会提升，这是体内毒素逐渐排除的正常现象。
祖国在我心中的演讲稿,不要复制的,简单点,350~400字的!急用!谢了!
当我牙牙学语时，爸爸告诉我，我是炎黄子孙、龙的传人；当我记事时，妈妈告诉我，我的祖国是一个方圆960万平方千米的大国；当我上学时，老师教我们画鲜艳的五星红旗。
“中华人民共和国”这七个字已经铭记在我心中，我是中国人。
回眸历史，“路漫漫其修远兮”……张骞出使西域，玄奘西行取经，鉴真东渡传教，郑和七下西洋。
我们的祖先曾让中国走向世界，让世界认识中国，大的开放迎来大的发展，四大发明曾一度是我们的自豪。
但是到了近代，中国的封建统治者妄自尊大、闭关锁国、思想僵化。
中国脱离了世界，世界甩落了中国。
鸦片战争、中法战争、中俄战争，《南京条约》、《北京条约》、《马关条约》，太多太多的苦难，太多太多的枷锁，东方巨人，你怎么了
东方雄狮，你为什么不怒吼
“仰天长啸待时日，巨龙腾飞平地起。
”中国共产党领导中国人民站起来了，屈辱的历史一去不复返，辉煌的前景向我们走来。
“抗美援朝''报国仇，万隆会议结朋友。
大庆石油奏凯歌，两弹一星显身手。
”自力更生，内强国力；五项原则，外接友邻。
新中国以不屈的自尊，独立自主，攻破坚冰。
以崭新的姿态，和平共处，走向世界。
鲜艳的五星红旗终于在联合国庄严升起。
展望未来，中华民族“上下而求索”……道路是曲折的，但曲折只会让中国人民更加理智。
十年内乱后，党带领中国人民改革开放，在总设计师的领导下，“改革东风送残冬，对外开放春意浓。
”经济特区、沿海明珠；863计划、一国两制；留学热潮、冰雪长城。
这一切无不在昭示着：中国的无限发展生机和活力。
“乘风破浪会有时，直挂云帆济沧海”。
坚持对外开放，与时俱进谱新篇：浦东崛起，港澳回归；北京申奥成功，“神舟”号遨游太空；上海举行APEC会议，中国经济顺利入世。
这一切无 不在昭示着：中国巨龙的飞速发展和不断强大。
你们一定看见过祖国的锦绣河山吧。
那滔滔江水，滚滚黄河，连绵不断的山峰，都属于我们伟大的祖国。
祖国的山川壮丽，祖国的河水秀逸，祖国的胸怀无比广阔。
我们都是炎黄子孙，都是龙的传人。
我们的幸福来自祖国，只有国家富裕强大，才能使我们幸福的生活之花永放光华。
中国的历史告诉我们，没有祖国，就没有家，国家不强盛，就要挨打。
只有我们团结起来，才可以使得祖国强盛。
请帮我改成一篇演讲稿
急
原稿内容：观点鲜明，事例经典，不宜改动。
原主题内容不够集中，现已集中为爱国、报国、强国。
原稿语句：句式中有制约表现力发挥的长陈述句。
已调整为递进式排比句，对提高表现力、加强冲击力有增效作用。
常怀报国之心 勇担强国之任 我们敬慕岳飞，敬慕他自幼身怀报国之心， 不忘靖康之耻，身负屈膝求全之辱，铭刻山河沦丧之痛，少年单骑入军旅。
将军独自凭栏，怒发冲冠。
历尽三十年苦征战，视功名如尘土；收拾八千里旧山河，唯与云月相伴。
我们感谢岳母，感谢她将“精忠报国”刻入了她儿子的心中，也刻在了千千万万中华儿女的脊梁上。
我们敬慕那些为国而牺牲的民族战士。
当鸦片战争的硝烟弥漫中国时，当丧权辱国的条约如雪花般飞飘在祖国上空时，当“九一八”空袭警报在中国人民头顶呜咽时,当“七七事变”大片国土沦丧时……正是他们，这些忠贞爱国之士，用青春、鲜血、身躯铸成的万里长城，力挽狂澜，保卫住了长城脚下的民族血脉。
我们敬慕这些为了民族解放事业无私奉献、永垂不朽的烈士，敬慕这些最可爱的人。
我坚信，没有爱国之心的理想不过是黄粱一梦; 我坚信，没有爱国之心的蓝图只不过是一张破乱的废纸； 我坚信，没有爱国之心的承诺只不过是一个接一个的谎言…… 我坚信，没有爱国之心的一切都只是没有灵魂的躯壳。
没有翅膀的鸟儿怎么在天空中飞翔
没有尾巴的鱼儿如何在水底游荡
林木没有根基不能在天地间生长， 小船没有征帆不能下海远航， 没有机杼就织不出锦绣， 没有报国之心如何让我祖国繁荣富强
我怎能不爱自己的祖国
我饮着黄河的水，食着长江的鱼，吃着两江流域的谷粮，领略着长城内外、大河上下的无限风光
我怎能不报自己的祖国
我有着赫赫先祖赐予我们的黑头发、黑眼睛、黄皮肤，承继着中华民族的血脉，挺起的是中国人的脊梁
（仪态特写） 我怎能不强自己的祖国
我手捧先人留给我们的诗书，写着四平八稳的方块字，脑袋里装满凝结着智慧美的唐诗、宋词、汉文章
（伴手势步态） 我怎能不强自己的祖国
立于祖先托付于我们的土地之上
头顶青天、肩负社稷，我怀抱的是建走向世界之功，立千秋大业的理想。
（加手势语） 我怎能不强自己的祖国
感念高天厚土之恩，我深深地爱着脚下这片透散着祖国母亲味道的土壤
（亮相特写） 少年进步则中国进步，少年强则中国强。
同学们，朋友们，历史长河奔流不息，英雄豪杰各领风骚。
今朝我怀报国志，我辈强则中国强
（亮相特写：力求声情并茂、动作有力，仪态威风
）
