cloning-and-DNA-new.ppt

Module 5 Cloning1.Welcome to my English Welcome to my English class!class!2.Dolly(1997-2003)3.What other animals have been cloned?First cloned muleCloned monkeys4.First cloned horse First cloned cat5.6.Vocabulary and Reading Cloning and DNA 7.Revisiontechnical terms基因基因 gene酸性的酸性的 acid细菌菌 bacteria胚胎胚胎 embryo酶 enzyme 组织 tissue有机体有机体 organism干干细胞胞 stem cell基因的，基因的，遗传学的学的 genetic生物多生物多样性的性的 biodiversity8.Read the passage and find the paragraphs which describe:1.when the structure of DNA was discovered 2.how to clone something 3.four possible reasons for cloning 4.the disadvantages of cloning5.the research into DNA has helped solve crime6.Cohen and Boyer discovered a procedureP1P3P4-7P4-7P8 Fast readingP29.a transparent twisting laddermade of the fundamental components of lifeDNAIntensive reading1.Please describe the structure of DNA.2.What is the relationship between DNA and gene?P110.Gene is part of DNAthat controls how it developsrelationship11.Intensive readingP2Please describe the procedure which Cohen and Boyer discovered.use enzymesto cut outand to insert and combine12.What is a Clone?A clone is an organism which is genetically identical to another one.But rememberWe=Our genes+Our environmentIntensive readingP313.Para.1-Para.3Time Scientist Discovery186619531973Mendel Watson and CrickCohen and Boyerboth parent plants have influenced the genetic make-up of the new plantThe structure of acid DNAA procedure to use enzymes to unzipthe DNA,to cut out a sequence of genes and finally insert them into the host cell and combine with its DNA14.MendelWatson and CrickBoyerCohen15.Summary:reasons for cloningThere are many valid reasons for cloning.The first reason is cloning can be an_treatment for couples who find it _ to have children.Another reason is to reproduce the talents of _ human beings.A further reason is to obtain a _ of stem cells.A fourth reason for cloning is that some scientists and farmers think it would be_to clone a prize cow which can _ bacteria or disease,or to sow a _ crop.Finally,the _ research into DNA has helped solve _.optionaldifficultexceptionalsupply handyresistclonedlatest _P4-8crimes16.an _ treatment for couples who cant have childrenreproduce the _ of exceptional human beingsobtain stem cells in embryoswhich are very _and can develop into every other type of cellsuffer from unknown psychological _ be _to the original one many people find the wasted embryo _ be _ to clone a prize cow resisting bacteria or disease would _ the biodiversity of the breed optionalcontradictory flexibleunacceptablehandyAdvantagesDisadvantages P4-7restrictpressuretalents17.P1(DNA and gene)P3(cloning)P8(DNA in helping solve crime)P4-7(advantages and disadvantages)Structure of the passageP2(procedure)18.Choose the best answers.1.The science of genetics was discovered by _.2.A.Mendel B.Watson and Crick C.Cohen and Boyer D.Einstein A19.2.Cloning humans from their parents has the disadvantage that_.A.it is a treatment for couples who want children B.it could create an exceptional human being C.we cannot predict the psychological effects D.the clone may not lead the same life C 20.3.Stem cells can be used to _.A.develop into enzymes B.create prize winning animals C.solve crimes D.help people recover their good health D21.4.Clones of exceptional human beings _.A.would be under unknown psychological pressure B.would have different experiences and upbringing from ordinary people C.would allow us to ring Einstein back to life D.may have different characteristics from the original D22.5.If we can be sure that the embryo will not be wasted,_.A.cloning to obtain stem cells would be acceptable to many people B.stem cells could develop into every other type of cell in the body C.cloning would need to be controlled by a voluntary code of practice or government regulations D.cloning can be used to create animals and crops A23.1.解解码DNA 2.截取一段序列的基因截取一段序列的基因3.3.把它把它们插入宿主插入宿主细胞胞4.4.与与一一样Unzip the DNACut out a sequence of genesInsert them into the host cellFind the expressionsP2-3be identical to24.1.正当的理由正当的理由2.可供可供选择的治的治疗方法方法3.未知的心理未知的心理压力力 4.选择人生道路人生道路5.与与相立相立6.拥有新的缺点有新的缺点7.原有的美德原有的美德valid reasonsan optional treatment unknown psychological pressurechoose a path in lifepossess new vicesexisting virtuesP4-5be contradictory to25.但是克隆出来的但是克隆出来的爱因斯坦因斯坦选择的人生道路可的人生道路可和和“原版原版”爱因斯坦的因斯坦的选择大相径庭。大相径庭。But an Einstein clone might choose a path in life which is contradictory to the one the original Einstein chose._.Translation26.1.recover from a disease2.修复人体修复人体组织3.一只一只优选奶牛奶牛4.rely on 5.限制生物品种的限制生物品种的 多多样性性6.在犯罪在犯罪现场repair human tissuea prize cow依靠，依依靠，依赖restrict the biodiversityof the breed从疾病中康复从疾病中康复P6-8at a crime scene27.Soon afterwards Soon afterwards Anti-cloning protests took place.Anti-cloning protests took place.(反克隆抗反克隆抗反克隆抗反克隆抗议议示威示威示威示威)28.Debate cloningAre you for or against cloning?“Cloning technology is a double-edged sword.”29.赞成理由成理由1.克隆技克隆技术可挽可挽救救濒危危动物物2.可再造人体器可再造人体器官来移植，官来移植，为老人和病老人和病人人带来福音来福音3.Homework:Write a compositionHomework:Write a composition 最近国内一家英文最近国内一家英文最近国内一家英文最近国内一家英文最近国内一家英文最近国内一家英文报纸报纸报纸正在正在正在正在正在正在讨论讨论讨论人人人人人人类类类是否是否是否是否是否是否应该应该应该展开克隆研究的展开克隆研究的展开克隆研究的展开克隆研究的展开克隆研究的展开克隆研究的问题问题问题，以下是你所在班，以下是你所在班，以下是你所在班，以下是你所在班，以下是你所在班，以下是你所在班级级级的的的的的的讨论讨论讨论情况。情况。情况。情况。情况。情况。请请请你据此你据此你据此你据此你据此你据此给该报编辑给该报编辑给该报编辑写一封信，告写一封信，告写一封信，告写一封信，告写一封信，告写一封信，告诉诉诉他同学他同学他同学他同学他同学他同学们们们的的的的的的观观观点，并表达自己的看法。点，并表达自己的看法。点，并表达自己的看法。点，并表达自己的看法。点，并表达自己的看法。点，并表达自己的看法。Group 1 反反对理由理由1.克隆容易造克隆容易造成各种基因的成各种基因的不良不良变异。异。2.克隆人的出克隆人的出现会使法律、会使法律、伦理道德混乱。理道德混乱。3.Group 2Useful words1.变异异 variation2.移植移植 transplant3.道德的道德的 ethic4.器官器官 organ5.对.有利有利 be beneficial to 6.滥用用 abuse30.31.