英语辩论转基因.doc

第一、 转基因食品对生命健康造成严重危害根据最新的科学研究成果：转基因技术存在巨大的不可控性，会产生不可预见的基因突变和危害，造成未知疾病；而且会产生抗生素耐药性及新的毒素，增加人体的过敏反应，并减少食品的营养价值或重要成份特别是对儿童的生长发育造成严重损害第二、 转基因作物对生态造成巨大威胁1、 连续几年种植过转基因作物后，因转基因植物及其除草剂的毒性，土壤将不能再种原有作物2、转基因作物的花粉飘移污染，将使天然种子不复存在3、转基因作物特性和毒性，会给相邻植物带来灭顶之灾，破坏生物多样性4、转基因植物的花粉会杀死蜜蜂和蝴蝶，美国曾报导过出现了大量蜜蜂消失的情况5、次生害虫大爆发，并产生无法对付的超级虫，农药用量反而增加改变环境转基因食品在种植、生长过程中，与非转基因作物还是有很多区别的，对土壤和周边的生态环境会造成一定的影响，且这种影响也不一定是正面的害虫升级转基因食品本身就还有灭杀害虫的基因，但是害虫可以依靠淘汰、进化，对这种特征产生更高的抵御性，造成农药也无法灭杀的可能减少非转基因作物转基因作物便宜、好种、产量大，因此，许多农户都乐于种植换基因作物，像传统的非转基因大豆产地东北，本地大豆逐年减少种植，取而代之的是转基因大豆，这种情况很有可能造成非转基因作物种子的停产和灭绝。

First, genetically modified food(GMF) to cause serious damage to life health.According to the latest scientific research results: there is a huge uncontrollability, transgenic technology can produce gene mutation and harm of unpredictable, unknown disease;And will produce antibiotic resistance, and the new toxins, increase the body's allergic reaction, and to reduce the nutritional value of food or important ingredients.Especially for children's growth caused serious damage.Second, poses a great threat to the ecological genetically modified (gm) crops1, for several years after planting genetically modified (gm) crops, because of transgenic plants and its toxicity of herbicide, the soil will no longer original crops.2, the pollen drift pollution of genetically modified (gm) crops, makes the natural seed cease to exist.3, the properties and toxicity of genetically modified (gm) crops, can bring destruction to the adjacent plants, destruction of biodiversity.4, the pollen of the genetically modified plants will kill bees and butterflies, the United States has reported appear a lot of bees disappear.5, secondary pests outbreak, and unable to deal with super bug, instead of increase in the amount of pesticides.A change of sceneGenetically modified food in the process of cultivation, growth, and there are a lot of difference between genetically modified (gm) crops, soil and the surrounding ecological environment will cause certain effect, and this effect also is not necessarily positive.Pests to upgradeItself and kill pests genes of genetically modified food, but can rely on eliminating pests, evolution, characteristics of the higher against sex, may cause pesticides can kill.Reduction of genetically modified cropsCheap and good kind of genetically modified (gm) crops, large output, as a result, many farmers are happy to genes in crops, like traditional non-gmo soybean producing area of northeast, local soy reduce growing year by year, instead of transgenic soybeans, this kind of situation is likely to cause the seed production and extinction of genetically modified (gm) crops.影响生育对小白鼠做过的关于转基因食品喂食的实验表明，转基因食品会对小白鼠的繁殖和生育能力产生严重的影响，一般 3-4 代以后，将出现繁育困难的可能。

因此，对人类而言，转基因食品也可能存在同一问题影响生态环境,如超级杂草问题,生物多样性的影响和破坏生态平衡更为严重,转基因作物可能扩大“基因污染”,这可能会破坏生物多样性,导致个别物种的灭绝,影响生物多样性和转基因食品的隐患还没有直接出现有害人类病例转基因食物在美国不被允许作为食物转基因食品可能对人体造成危害：1.增加积聚了食物中原有的微量毒素；2.作物中的免役或致敏物质可使人类机体产生变态或过敏反应；3.会降低食品的营养价值；4.服用了改良食物，使人体产生抗药性要清楚转基因食品的确存在这以下五大隐患：一是毒性问题一些研究学者认为，对于基因的人工提炼和添加，可能在达到某些人们想达到的效果的同时，也增加和积聚了食物中原有的微量毒素二是过敏反应问题对于一种食物过敏的人有时还会对一种以前他们不过敏的食物产生过敏三是是营养问题科学家们认为外来基因会以一种人们目前还不甚了解的方式破坏食物中的营养成分四是对抗生素的抵抗作用当科学家把一个外来基因加入到植物或细菌中去，这个基因会与别的基因连接在一起人们在服用了这种改良食物后，食物会在人体内将抗药性基因传给致病的细菌，使人体产生抗药性五是对环境的威胁在许多基因改良品种中包含有从杆菌中提取出来的细菌基因，这种基因会产生一种对昆虫和害虫有毒的蛋白质，生态学家们认为那些不在改良范围之内的其它物Influence fertilityThe experimental results on the food fed by the mice showed that the transgenic food could have a serious impact on the reproduction and fertility of mice. After the general 3-4 generation, it would be possible for the human beings to have the same problem.the possible impact of may affect the ecological environment, such as super weeds, the influence of the biological diversity and destroy the ecological balance.More serious, genetically modified (gm) crops could expand the "genetic pollution", which may destroy biodiversity, lead to the annihilation of the individual species, affecting the biodiversity.GM foods in the United States are not allowed for food, genetically modified food may cause a harm to human body: 1. Increase the accumulation of food in the original trace amounts of toxins; 2. The crops in the immune or cause sensitive materials, the human body to produce abnormal or allergic reaction; 3. Will reduce the nutritional value of food; 4. To take the improvement of food, make the body resistance.To be aware of the existence of genetically modified food is the following five major risks:One is the problem of toxicity. Some researchers believe that the artificial extraction and addition of genes may reach the effect that some people want to achieve, but also increase and accumulate the original trace toxins in food.Two is an allergic reaction problem. For a food allergic person sometimes also to a kind of before they are not allergic to food allergies.Three is a nutritional problem. Scientists believe that the foreign gene will destroy the nutrients in the food in a way that people don't understand at the presen。