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1、Welcome to my English class!,Dolly (1997-2003),Module 5 Cloning and DNA (Reading and writing),Fast-reading,What is DNA? 2. What is a clone? 3. Whatre the characteristics of stem cells?,DNA is a transparent twisting ladder made of the fundamental components of life.,1. What is DNA?,2.What is a clone?
2、,A clone is an organism which is genetically identical to another one.,Stem cells are very flexible and can develop into every other type of cell in the body.,3. Whatre the characteristics of stem cells?,Mendel,Watson and Crick,Boyer,Cohen,Detailed reading,I. Para. 1 -Para. 3,Mendel,Watson and Crick
3、,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 with its DNA,Mendel,Watson and Crick,Boyer,Cohen,Cloni
4、ng humans from their parents has the disadvantage that _. 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,II. Para.4 -Para.6,2. Which sentence in the Para. 4 can be re
5、placed by the following one? If one was a clone of his father or mother, his childhood would be full of unknown psychological pressure.,A cloned Einstein will be the same with the original one. 2. Stem cells cant develop into every other type of cell in the body. 3.The unacceptable embryo would be w
6、asted.,F,F,T,True or false,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 clone might choose a path in life which is contradictory to the one the original Einstein chose.,_ _.,Translation,Normal cows,Cloned cow,Solve crimes,A fourth reason for _is that some scientists and farmers think it w
7、ould be _to clone, for example, a prize cow which can _bacteria or disease, or to sow a _crop which can resist rot or pests. But to _a few cloned animals or crops would restrict the biodiversity of the breed. Finally，the _ research into DNA has helped solve crimes by _the suspects saliva.,III. Liste
8、n to Para. 7 and Para. 8.,cloning,handy,resist,cloned,rely on,latest,analysing,Summary,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 produce the talents of _ human beings. A further reason i
9、s 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 crimes.,optional,difficult,exceptional,supply,handy,resist,clon
10、ed,latest,_,To sum up, I strongly surport the science of cloning.,Dolly (1997-2003),Soon afterwards Anti-cloning protests (反克隆抗议示威) took place.,Write a paragraph,Group 1,Group 2,S T R U C T U R E,Topic sentence,Reason two,Reason one,Reason three,Closing sentence,Proof-reading (写后检查),Group- evaluatin
11、g(互评),How many marks will you give him or her?,1.Is there a good topic sentence? 3 2.Are there enough logical(逻辑的)reasons? 10 3.Are there any connecting words (连接词)?4 4.Is there a proper closing sentence? 3,Homework,1. Find more information about cloning. 2. Perfect your writing.,Writing is building your words into a well-organized structure.,Your writing will be the clone of the classic works(经典作品).,Goodbye!,
