轉基因食品的利與弊英語作文
A. 英語作文是關於轉基因食品的進口的贊同與反對最後是自己的觀點
Today there are 6 billion people on the earth. By the year 2050 there may be 12.5 billion. This is a lot of people to feed. We need more food.
One way to proce more food is by growing stronger plants. For thousands of years, farmers have made plants better. Every season, they pick the best plants for the next season. It works very slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic material(遺傳物質). Foods from plants grown in this way are called genetically modified foods(轉基因食品), or GM foods.
By changing the genetic material of a plant, it is possible to make new plants. They make plants which are strong against plant diseases. They can also help with our diseases: a kind of rice is being prepared(准備), for example, which stops people from becoming blind.
Rich countries proce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help proce more food.
GM plants are not natural. No one knows how good or bad they are. Making GM foods is only one way of feeding people in 2050. There are strong feelings against them, because they are unnatural. They may feed people, then hurt them or their children later. But, both rich and poor countries are very interested in their use, and they are not going to go away. In 2050 We may think differently about them.
B. 轉基因食品的好處與壞處,最好是英文的~
轉基因食品?當「基因」這一詞彙漸漸成為流行語時,頗有爭議的轉基因食品也走進了我們的生活,擺上了老百姓的餐桌。近年來,有關轉基因食品是否會對人體健康造成危害的爭議日趨激烈,引起了全世界公眾的高度關注。但是在我國,轉基因食品對大多數老百姓而言,似乎仍然是陌生而遙遠的。什麼是轉基因食品基因是控制生物性狀的最基本單位,記錄著生物生殖繁衍的遺傳信息。通過修改基因能改變一個有機體的部分或全部特徵。轉基因食品就是移動動植物的基因並加以改變,製造出具備新特徵的食品種類。譬如,利用生物技術將某些動物的基因轉移到其他物種上去,通過改造生物的遺傳組織,使其出現原來並不具備的特徵,這些轉變可以按照人類所需要的目標來完成。例如,人們可以用鮮魚的基因幫助西紅柿、草莓等普通植物來抵禦寒冷;把某些細菌的基因接入玉米、大豆的植株中,就可以更好地保護它們不受害蟲的侵襲。而以這些轉基因生物為原料加工生產的食品就是轉基因食品。轉基因食品安全嗎轉基因食品是從實驗室中走出來的,是人工製造出來的。在講究自然、生態、健康消費熱潮的今天,轉基因食品被不少人視為「異類」,把它打入「冷宮」,可以說,轉基因食品的安全性備受人們的質疑。從目前的情況看,轉基因產品確實有些方面還說不清楚。比如,食品安全方面有一些讓人懷疑的地方。雖然自從美國第一批轉基因西紅柿上市以來,全球約有2億多人食用過數千種轉基因食品,5年多來尚未報道過一例食品安全事件。我國進口轉基因大豆較多,據估計約有一半的大豆色拉油中含有轉基因成分,亦沒有出現任何問題,但國外的有些報道仍然值得關注。據英國媒體報道,1998年秋,英國一位研究人員在電視節目中公布了他的實驗成果:用轉基因馬鈴薯飼養大鼠,引起了大鼠器官的生長異常,體重減輕,免疫系統遭到破壞。這件事情,雖然後來被英國皇家學會組織的專門評審中定調為共有6項缺陷,但仍然引起了人們對轉基因食品的懷疑。其實,根據國際通行的生物安全評價辦法,按照轉基因生物對人類、動植物、微生態和生態環境的危害程度,農業轉基因生物可分為4個等級:即安全等級Ⅰ(尚不存在危險);安全等級Ⅱ(具有低度危險);安全等級Ⅲ(具有中度危險);安全等級Ⅳ(具有高度危險)。而在轉基因食品的製造過程中,要經過嚴格的評定審核,務必要使其達到不存在危險的程度。可見,對轉基因食品的安全措施是有的,只要堅持「預先防範」的原則,完全可以確保轉基因食品是安全的。另據介紹,轉基因食品的外表和天然食品沒有多大差別,它的味道與天然食品相似,或許更好一些。有的轉基因食品中添加了提高蛋白質、維生素含量的基因,還能給人體補充適量的營養。可以這樣說,轉基因食品並不可怕,我們早就享受了雜交水稻煮出的飯香。關鍵在於監管爭論不下,阻擋不住,轉基因食品已經擺在了消費者面前,說不定,你家的餐桌上就有。而適應這一形勢,我國《農業轉基因生物標識管理辦法》也開始實施。我國列入第一批標識管理的農業轉基因生物有大豆種子、大豆、大豆粉、大豆油、豆粕、玉米種子、玉米、玉米油、玉米粉、油菜種子、油菜子油、油菜子粕、棉花種子、鮮蕃茄、蕃茄醬。按照規定,消費者在購買轉基因食品時,可向經營者詢問商品的性能、質地、有效期限、生產廠商等問題,經營者有義務有責任向消費者說明情況。而生產廠商則要在標牌上把產品的基本情況介紹清楚。有關專家提醒,對製造商不願粘貼標識的轉基因產品,消費者不要急於購買,而一旦購買時則須多問。消費者如果「吃」進了沒有粘貼標識的轉基因食品,可以向衛生、工商等職能部門舉報,根據《農業轉基因生物安全管理條例》的要求,對違反其規定的,可以沒收非法銷售的產品和違法所得,並處以1萬元以上5萬元以下的罰款。食品是人們賴以生存的最基本必需品,對轉基因食品,消費者可要睜大眼睛啊!
C. 關於對轉基因食物的優點和缺點及自己看法的英語作文
這就是關於轉基因食品優缺點的作文:Genetically modified food is science brings us the proct, now of cultivated land area of less, genetically modified food will play more and more important role, if the use of transgenic technology can solve the world food shortage problem, it is not quite good? Genetically modified food in the world now is a kind of new things, new things, people need time to promote its accept also need some time, we cannot put new things in the cradle, a stick to it from the beginning, that cannot be eaten of genetically modified food. You think we don't of hybrid rice is a genetically modified food? But we can open it from? And if they can pass the soybeans genetically modified technique using atmospheric nitrogen inside his proces fertilizers to other crops gene transfer in the mankind, it is. Everything is both sides, especially technology, science and technology is a double-edged sword? Genetically modified food has its disadvantages, like some worry, because it will not change, will destroy genetic evolution, etc. Genetically modified food and nutrition inside it isn't like that, the propaganda of people worry is understandable, after accepting a new things take time. But we also should see the benefits of them, I think as time slowly past, genetically modified foods will be accepted by people. 希望會對你有幫助吧,謝謝!
D. 轉基因食品的優缺點英文作文
The advantages of genetically modified food: it can increase crop yield; rece proction cost; enhance the ability of crop to resist insect and virus; improve the storage resistance of agricultural procts.
For example: genetically modified food - potatoes; shorten the time of crop development; get rid of the supply of four seasons; break the boundaries of species, cultivate new species, and proce food that is concive to human health.
Disadvantages of genetically modified food: the so-called increase in proction is not affected by the environment. If there is a natural disaster of rain and snow, it may also rece proction even more severely. At the same time, in the process of cultivation, genetically modified crops may evolve into farmland weeds; other species may be affected by gene rafting; genetically modified food may cause allergies, etc
E. 寫關於轉基因食品利與弊的英語作文
這個貌似有點難度
F. 轉基因食品的利與弊(答案中英文互譯)
優點:可增加作物單位面積產量,降低生產成本;打破物種界限,培植新物種,生產專有利於人類健屬康的食品.缺點:有研究表明,轉基因食品對哺乳動物的免疫功能有損害.試驗用倉鼠食用了轉基因食品後,到其第三代就絕種了
G. 轉基因食物英語作文
您好,我看抄到您的問題很久沒有人來回答,但是問題過期無人回答會被扣分的並且你的懸賞分也會被沒收!所以我給你提幾條建議:
一,你可以選擇在正確的分類下去提問,這樣知道你問題答案的人才會多一些,回答的人也會多些。
二,您可以到與您問題相關專業網站論壇里去看看,那裡聚集了許多專業人才,一定可以為你解決問題的。
三,你可以向你的網上好友問友打聽,他們會更加真誠熱心為你尋找答案的,甚至可以到相關網站直接搜索.
四,網上很多專業論壇以及知識平台,上面也有很多資料,我遇到專業性的問題總是上論壇求解決辦法的。
五,將你的問題問的細一些,清楚一些!讓人更加容易看懂明白是什麼意思!
謝謝採納我的建議! !!
H. 跪求一篇關於轉基因食品利與弊的英文文章,要求字數350左右,懸賞分最高,回答的好還可以追加。
2、食品安全
進退兩難的境地和兩面性的特徵,基因作物在輿論界引發爭議不足為怪。但在同屬發達世界的大西洋兩岸,轉基因技術的待遇迥然不同卻是一種耐人尋味的現象。當美國40%的農田種植了經過基因改良的作物、消費者大都泰然自若地購買轉基因食品時,此類食品在歐洲何以遭遇一浪高過一浪的喊打之聲?從直接社會背景看,目前歐洲流行「轉基因恐懼症」情有可原。從1986年英國發現瘋牛病,到今年比利時污染雞查出致癌的二惡英和可口可樂在法國導致兒童溶血症,歐洲人對食品安全頗有些風聲鶴唳,關於轉基因食品可能危害人類健康的假設如條件反射一般讓他們聞而生畏。
運用基因工程技術,不但可以培養優質、高產、抗性好的農作物及畜、禽新品種,還可以培養出具有特殊用途的動、植物。
1.轉基因魚 生長快、耐不良環境、肉質好的轉基因魚(中國)。
2.轉基因牛 乳汁中含有人生長激素的轉基因牛(阿根廷)。
3.轉黃瓜抗青枯病基因的甜椒
4.轉魚抗寒基因的番茄
5.轉黃瓜抗青枯病基因的馬鈴薯
6.不會引起過敏的轉基因大豆
7.超級動物 導入貯藏蛋白基因的超級羊和超級小鼠
8.特殊動物 導入人基因具特殊用途的豬和小鼠
9.抗蟲棉 蘇雲金芽胞桿菌可合成毒蛋白殺死棉鈴蟲,把這部分基因導入棉花的離體細胞中,再組織培養就可獲得抗蟲棉。
I. 關於轉基因食品的利與弊的短篇英語作文
Genetically modified foods have more advantages: increase the crop yield per unit area; can rece proction costs; through transgenic technology can enhance crop resistance to pests, a
J. 跪求;轉基因食物的利與弊的英文版,120個字左右
轉基因,斷子絕孫,
吃他等於吃毒葯。