克隆的利弊(The Advantages and Disadvantages of cloning)
To clone or not to clone, is that the question? Advanced technology has already pushed human being to edges,such as the production of weapons of mass destruction,the destruction of Ozone by Freon ,and the application of clone.The heated deabte over whether cloning technique should be used in human reproduc-- tion must be considered as a serious issue.
Clone, to a certain degree, is beneficial to mankind.Such disease as Parkinsons will possiblly be cured in the future in the hope of further applying of clone.However,the abuse of this technology will bring human being unthinkable destruction. Since the declaration of the death of Dolly,we are more conscious of the inefficient procedure of clone.Acorrding to "Dolly‘s false legacy",the incidence of death among fetuses and offspring produced by cloning is much higher than it is through natural reproduction--roughly 10 times as high as normal before birth and 3 times as high after birth.And even you may argue that this technology will be perfected in the future, i don‘t see there is any point in whole--being cloning. Many people consider this technology a promising one as to bring all human being to a new era in which all human reproduction will be accomplished by cloning.Thus scientists in some countries have already started their great plan to clone human.But let‘s think, what is the practical value in doing so?You may tell me that it can bring hope for those couples unable to have children because they might choose to have a copy of one of them rather than accept the gene intrusion from a doner.But imagine,if you have a child owning the same apperance as yours or your husband‘s, will you accept it without any uncomfort?
Don‘t you think it is embarrassing?Or if this kind of human reproduction is allowed,terrorists may get hold of it and reproduce lots of "American Presidents".Don‘t you agree that these presidents might bring the world much more chaoes?Besides these terrible aspects,the cloning of whole--being may destroy the diversity of people of the globe. Of course, there still remains much more disadvantages of the application of cloning reproduction of human being and animals. We should be extremely cautious of what we do and thus remember we will sure be respondible for all the results created by ourselves!!! So how do u think about it?
纯正美语发音100个秘诀:第二章 三最法突破发音
大家一起学美式英语发音:音标[uə]该怎么发
纯正美语发音100个秘诀:第七章 发音基本功 (第七节 3)
中国人学习疯狂英语的方法详解
美语发音视频教程 5
30天掌握英式英语发音视频教程 第8课 短元音 /e/
美语发音视频教程 8
学习音标[ʃ]-海伦英语音标入门视频教程第39集
30天掌握英式英语发音视频教程 第10课 长元音[i:]
美国英语音标外教发音详解视频:'ee' as in 'she' 音标[i]
纯正美语发音100个秘诀:第七章 发音基本功 顺向型同化
谈谈英语的发音
纯正美语发音100个秘诀:第七章 发音基本功 逆向型同化
英语发音真的重要吗?
纯正美语发音100个秘诀:第七章 发音基本功 (三)相互同化
汉语英语发音比较
ABC美式英语发音词典视频(英语初学者或要纠正发音者必看)
美国英语音标外教发音详解视频:'aa' ad in hat,短元音æ
编辑推荐:英语口语完美发音的十大要诀
英语音标学习教程:中元音的代表字母发音a, e, i, o, ar...
大家一起学美式英语发音:音标[e]该怎么发
练习音标/ɔ/的英语绕口令-读英语绕口令练习音标发音(23)
学习双元音音标[au]-海伦英语音标入门视频教程第16集
掌握英语发音教程:第二章 第三节
美语发音视频教程 13
美语发音视频教程 9
新东方美音纠音、透析与突破Unit 19: Rhythm节奏
英式发音or美式发音:掌握地道口音发音规则
傻瓜国际音标视频教程:第八单元 Part 8
练习音标/i:/的英语绕口令-读英语绕口令练习音标发音(27)
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |