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1、,Module 5 Cloning,Welcome to my English class!,Dolly (1997-2003),What other animals have been cloned ?,First cloned mule,Cloned monkeys,First cloned horse,First cloned cat,Vocabulary and Reading Cloning and DNA,Revision,technical terms,基因 gene 酸性的 acid 细菌 bacteria 胚胎 embryo 酶 enzyme 组织 tissue 有机体 or
2、ganism 干细胞 stem cell 基因的，遗传学的 genetic 生物多样性的 biodiversity,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 cloning 5. the research into DNA has helped solve crim
3、e 6. Cohen and Boyer discovered a procedure,P1,P3,P4-7,P4-7,P8,Fast reading,P2,a transparent twisting ladder,made of the fundamental components of life,DNA,Intensive reading,1.Please describe the structure of DNA. 2.What is the relationship between DNA and gene?,P1,Gene is part of DNA that controls
4、how it develops,relationship,Intensive reading,P2,Please describe the procedure which Cohen and Boyer discovered.,use enzymesto cut out and to insert and combine,What is a Clone?,A clone is an organism which is genetically identical to another one.,But remember We= Our genes + Our environment,Intens
5、ive reading,P3,Para. 1 -Para. 3,Mendel,Watson and Crick,Cohen and Boyer,both parent plants have influenced the genetic make-up of the new plant,The structure of acid DNA,A procedure to use enzymes to unzip the DNA, to cut out a sequence of genes and finally insert them into the host cell and combine
6、 with its DNA,Mendel,Watson and Crick,Boyer,Cohen,Summary: reasons for cloning,There 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 o
7、btain 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 _.,optional,difficult,exceptional,supply,handy,resist,cloned,latest,_
8、,P4-8,crimes,optional,contradictory,flexible,unacceptable,handy,P4-7,restrict,pressure,talents,P1 (DNA and gene),P3 (cloning),P8 (DNA in helping solve crime),P4-7 (advantages and disadvantages),Structure of the passage,P2 (procedure),Choose the best answers.,The science of genetics was discovered by
9、 _. A. Mendel B. Watson and Crick C. Cohen and Boyer D. Einstein,A,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 lea
10、d the same life,C,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,D,4. Clones of exceptional human beings _. A. would be under unknown psychological pressure B. would have different experiences and upbri
11、nging from ordinary people C. would allow us to ring Einstein back to life D. may have different characteristics from the original,D,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 o
12、ther 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,A,解码DNA 截取一段序列的基因 3. 把它们插入宿主细胞 4. 与一样,Unzip the DNA,Cut out a sequence of genes,Insert them into the host cell,Find the ex
13、pressions,P2-3,be identical to,1. 正当的理由 2.可供选择的治疗方法 3.未知的心理压力 4. 选择人生道路 5. 与相立 6.拥有新的缺点 7.原有的美德,valid reasons,an optional treatment,unknown psychological pressure,choose a path in life,possess new vices,existing virtues,P4-5,be contradictory to,但是克隆出来的爱因斯坦选择的人生道路可 和 “原版” 爱因斯坦的选择大相径庭。,But an Einstein
14、 clone might choose a path in life which is contradictory to the one the original Einstein chose.,_ _.,Translation,1.recover from a disease 2.修复人体组织 3.一只优选奶牛 4.rely on 5.限制生物品种的 多样性 6.在犯罪现场,repair human tissue,a prize cow,依靠，依赖,restrict the biodiversity of the breed,从疾病中康复,P6-8,at a crime scene,Soon afterwards Anti-cloning protests took place. (反克隆抗议示威),Debate,cloning,Are you for or against cloning?,“Cloning technology is a double-edged sword.”,Homework :Write a composition,Group 1,Group 2,Goodbye!,
