CloningWHEREISITLEADINGUS

1、Unit 2Cloning,Lets go!,What is cloning?,Cloning?,Examples of cloning: natural clones,Examples of cloning: natural clones,strawberry,cactus,Examples of cloning: natural clones,Examples of cloning: man-made clones,CopyCat - CC 2001,Noel, Angel, Star, Joy and Mary, 2001,Conclusion: what is cloning?,We

2、can know that cloning includes _and _clones. 2. Cloning happens both in _and _. 3. _ is the first cloned mammal(哺乳动物).,natural,man-made,animals,plants,Dolly,Unit 2 Reading,CLONING: WHERE IS IT LEADING US?,Skimming to get general ideas,Whats the main idea of the text? A. Animal cloning is very valuab

3、le and can benefit the world. B. It explains how cloning works in the first successful clone Dolly the sheep. C. It illustrates peoples views about Dollys appearance and cloning people. D. Both B&C.,Skimming,Reading Comprehension I,Read the passage quickly to find the main idea of each paragraph.,_.

4、Cloning has two major uses and successful clone. _.Cloning is a way of making an exact copy of another animal and plant(definition) _. The effect of Dolly. _. It is forbidden to clone human beings. _.The problems of Dolly.,1,2,3,4,5,Dolly,Scanning to get detail information,What are the major uses of

5、 cloning?,Read Paragraph 2 and answer the following question.,Gardeners use it to produce commercial quantities of plants.,It is valuable for research on new plant species and for medical research on animal,Cloning plants can produce plants of similar quality for sale.,Cloning can help save endanger

6、ed animals.,Read Paragraph 3-4 and answer the following question.,objections,human beings,normally,natural,6,original,imagination,serious illnesses,media,a lamb,1. The sheep that donated the somatic cell most probably lived _ years. A. 3 B. 6 C. 9 D. 13,“Dollys illnesses were more appropriate to a m

7、uch more older animal” means that _. Dollys illness would make Dolly become old B. Dolly would have such illness when it become older C. Young animals like Dollys age shouldnt have such illness,Altogether Dolly lived six and a half years, half the length of the life of the original sheep,Advantages

8、of cloning(pa2,pa5),Medical cloning could produce cures for serious illnesses in humans.,2. Cloning plants can produce plants of similar quality for sale.,3. Cloning plants can be useful for research on new plant species.,4. Cloning can help save endangered animals.,problems of cloning（pa3-5),1. Animal clones may develop the illnesses of older animals.,2. Animal clones may die younger than the donor animals.,4. There are moral objections to clone human beings.,3. Evil leaders want to clone themselves,Reading,Summary,The passage tells us that what _ is, th