2016新课标三维人教英语选修八unit2单元小结

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1、BeCarefulaboutCloningAfteraseriesofinitialexperimentsandcorrections,thescientist'shardworkpaidoffwhenthetwincloneturkeyswerehatchedwithnormalfeatherandclaws.Thisbreakthroughpossiblyenabledpeopletobringtheiradoredpetsbacktolife.However,itbotheredhimfromtimetotimethattheirhealthwasinpo

2、orconditionbecausetheywereunabletoresistillnesses.Thisdrawbackcasthimdown.Merely2weekslater,theclonesandtheircarrierdied,whichstruckfrustrationintohisheart.Heretiredbeforeheattainedhisambitionandbecameamemberofanoperachorustorelievehisdepression.Shortlyafterwards,themediapublishedaco

3、nservativeargumentobjectingtocloningowingtomoralproblems,andsuggestedtheconstitutionincludecompulsoryregulationstoforbidobtainingcommercialprofitsfromcloning.Wheninterviewed,thescientiststaredatthedecorationsontheceiling,thinkingforawhile,andthensaid,“I'mnotinfavourofanyarbitraryassu

4、mption,butundertakingcloningdoesdifferfromthestraightforwardprocedureofmakingloafsoutofflour.Untilweaccumulateenoughexactknowledge,anypracticeisinvainandisboundtofail.Altogether,beingmorecarefulisreasonableorwemaywalkintoasideroad.”谨慎对待克隆在最初的一系列实验和修正之后，科学家的辛苦工作终于取得成功，一对双生的克隆火鸡孵化出来，羽毛

5、和爪子都很正常。这一突破或许能使人们喜爱的宠物死而复生。然而，使他不时地烦恼的是：因为它们无法抵抗疾病，使得它们的健康状况极差。这个缺点让他很沮丧。仅仅过了两个星期，克隆体和母体都死亡了，这使他内心里充满了挫折，他在达到自己的目标前就退休了，并选择加入歌剧合唱团来减轻消沉的感觉。之后不久，媒体就因为道德问题而发表了反对克隆的保守论点，并且建议宪法应该包括强制性的法规禁止通过克隆获得商业利益。当被采访时，科学家盯着天花板上的装饰物思考了一会儿，说：“我不赞成任何任意的假设，但是从事克隆与用面粉制作面包的简单过程确实不大相同。在我们积累了足够准确的知识前，任何实际操

6、作都是徒劳无功的，注定会失败。总而言之，更加谨慎地对待克隆是合理的，否则我们或许会误入歧途。”版权所有:中国好课堂www.zghkt.cn加餐练(一)　完形阅读组合练Ⅰ.完形填空APennsylvaniapatrol(巡逻)officerrescuedaGermanshepherd(牧羊犬)fromacaraccidentinSouthLondonberry.Sincetherescue,aphotoofpatrolofficerNickAguecarryingthe__1__thathisfellowpoliceofficerspostedtoFacebook

7、hasgotnearly4,500likesandtonsof__2__comments.“Amazingpeoplestilldoexist！”oneuser__3__.TheactofheroismbeganonAug.11,whenAgueheardontheradiothattherehadbeenacar__4__nearby,andthattwodogsinvolvedinthecrashhadfledfromthe__5__.“IheardotherpeoplesaytheysawaGermanshepherd__6__，”AguetoldABCN

8、ews.com.“Bas