Nowaday, the controverial iue of cloning ha been in the limelight and ha aroued wide concern in the public. It’ quite undertandable that the view of thi iue vary from peron to peron. 如今，关于颇受争议的克隆问题已经明确地引起了大众广泛关注。而人们对于这个问题的看法也各不相同，这完全可以理解。 Some people are in favour of cloning, who firmly believe that cientit can bring the extinct animal back to life by cloning. It’ indiputable that cloning i a great proceto produce quantitie of commercial plant a well a new pecie of plant. 有些人很支持克隆，他们坚定地相信科学家们可以通过克隆技术将灭绝的动物重现天日。而且无需置疑的是克隆技术能帮助大量生产经济作物和新品种。 However, the cloning of the heep Dolly attracted public’ attention but aroue a torm of objection. For intance, if heap and heap of evil leader like Hillary attempt to clone themelve, a diater will break out in the world. In addition, the objector init that cloning ha a huge impact on genetic diverity. 然而，多利羊的克隆吸引了大众的注意，同时也引起了一阵强烈的反对。例如，一大群邪-恶的领导人试图克隆他们自己，世界就要爆发大灾难了。此外，反对者还认为克隆会对基因的多样性产生很大的影响。 A for me, I ugget that cloning play an important role on improving our quality of life. Needleto ay, that cloning i an effective acceto cure eriou illnee that at preent have no cure. What’ more, not only can cloning ait u to acquire unknown knowledge about the creature, but it alo i a wonderful breakthrough. Thought now there are lot of quetion about cloning, by no mean hould we give in to the unolved problem. 至于我，我认为克隆对提高我们的生活质量还是有很重要作用的。更不用说，克隆不仅可以帮助我们了解许多关于生物的未知问题，而且它还是一项很好的突破。尽管现在克隆上还有着许多难题，但是绝不意味着我们就要为这些难题而让步。由好作网www.hAOzuowEn.com整理
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I to enumerate pro and con,let everybody comment?Leon:1) cloning technology can relieve thoe who cannot become the mother of women uffering.2) cloning experiment to promote the implementation of the genetic of development,for "create" can the animal organ tranplanted opened up a propect.3) cloning technology alo can be ued to tet fetal genetic defect.Will be fertilized,ued to detect variou genetic dieae cloned embryo and uteru,cloning and genetic characteritic of fetu develop in exactly the ame.4) cloning technology ued for treatment of the nervou ytem damage.Adult nervou tiue regeneration,but no tem cell can repair neurological damage.5) to in vitro fertilization urgery,doctor often need to connect multiple fertilized implanted in the womb,with a into pregnancy tage from creening.But many women can only provide an egg for fertiliation.Through cloning can well olve the problem.The egg can clone into multiple for fertilization,which greatly improve pregnancy rate.Diadvantage:1) cloning would reduce the genetic variation,through cloning produce the individual ha the ame genetic,the ame dieae enitivity,a dieae could detroy the generated by cloning of group.Can imagine,if one country herd will have the ame cloning product,a leevere viru could detroy the national hubandry.2) cloning technology ue will make people tend to multiply the exiting population of the mot value of the individual,rather than by natural law to promote the whole population of the muck.In thi ene,the cloning technology to interfere with the natural evolution proce.3) cloning technology i an expenive technology,need a lot of money and biological profeional participation,failure rate i very high.Dolly i 277 experiment only reult.Although now developed more advanced technology,the uccerate wa only to reach 2-3%.4) trangenic animal raied the rik of infection.For example,if a drug milk cow production infected with viru,which may be through milk infection patient 5) cloning technology applied to the human body will lead to the offpring of artificial control genetic trait.Cloning technology debate whether to allow the core i the development of early human embryo for genetic operation.Thi i many ethicit not acceptable.6) cloning technology can alo be ued to create "uperman," or have trong phyique but mental retardation.Moreover,if cloning technology can effectively ue among human,men alo lot genetic ignificance.7) cloning technology to the effect of family relationhip will alo i huge.A father' DNA cloning generated children can a father' twin brother,only delayed decade wa born jut.It i hard to imagine that,when a peron find yourelf i imply another peron' completely reproduction,he (or he) what it feel like to be?Say o,cience and technology i ometime a double-edged word,advantage and diadvantage,and don't have no tandard anwer!Jut watching people uch ue!