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雅思写作观点预料:基因工程

2017-12-28 15:42:52 来源:网络雅思资料下载

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  Positives of genetic engineering积极面

  Genetic engineering is the practice of manipulating the genes of an organism

  It is used to produce crops that are more resistant to insects and diseases

  Some genetically modified crops grow more quickly

  Some drugs and vaccines are produced by genetic engineering

  It may become possible to change human’s genetic characteristics. Scientists may use genetic engineering to cure diseases.

  Inherited illnesses would no longer exist

  Genes could be changed before a baby is born

  It could also be possible to clone human organs

  We could all have replacement body part

  Humans could live longer, healthier lives

  Negatives of genetic engineering消极面

  There are ethical concerns about human genetic engineering

  Parents might want to choose their children’s characteristics

  This would be unnatural

  It would be unacceptable in most religions

  Soldiers could be cloned from the genes of the strongest people

  Clones might be used like robots to do certain jobs

  Clones might even be developed just for organ replacements

  Society and human evolution would change completely

  Currently, human genetic engineering is prohibited

  Genetically-Modified (GM) foods: Advantages转基因食物:优势

  Farmers can produce crops that grow bigger and faster

  Some GM crops are more resistant to disease or insects

  This could be important for food production in developing countries

  Faster growing cereals, fruit and vegetables will mean more profit

  GM foods can be modified to look perfect

  They may be more attractive to customers

  Genetically-Modified (GM) Foods: Disadvantages劣势

  There may be risks involved in the genetic engineering of foods.

  GM crops might change whole ecosystems

  Food chains could be broken if crops are resistant to predators

  Organic foods are produced without chemicals or genetic modification

  Organic farming may be slower and more expensive

  However, the environment is not damaged by fertilizers or pesticides.

  相关雅思写作真题

  6月25日雅思大作文:It is known to all that the technological and scientific advances have made greater changes to the range and quality of our food. Some people regard it as an improvement while others believe that the change is harmful. Discuss both views and give your own opinion.

  随着科学技术的进步,食品的种类,质量都有了提高。有人认为这种现象是好的,也有人觉得这样是有害的。讨论双方观点,并给出你的意见。

  现代农业的好坏 Some people support development of agriculture, like factory farming and scientific creation of fruits and vegetables, while others oppose. Discuss both views and give your opinion.


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