1、选择性必修三 UNIT 9 HUMAN BIOLOGYLESSON 1 TO CLONE OR NOT TO CLONE （1）What do you know about cloning? Cloning can create identical genes. Cloning can be used to edit genes. Cloning can make an exact copy of an animal. Scientists have broken lots of technical barriers when studying cloning. Weve cloned sev
2、eral species, like sheep, cattle and dogs. Scientists want to produce animal models that are helpful for medical research.similar in every detailto make changes to sth.problemsclasses of plants or animalsWhat additional information would you like to know? When was the first cloned animal created? Wh
3、y are scientists so interested in cloning? What achievements have we made in cloning? What problems are we facing now? Read through the article. Draw a structural map to show how the paragraphs are organised.Follow these steps:1. Locate the key words in each paragraph.2. Find out the topics in each
4、paragraph.3. Work out the logic between the topics.4. Show it in your map.Paragraph 1 Cloning is the process of making an exact copy of a plant or animal and developing it either naturally or artificially. Natural cloning has been going on for generations. For example, gardeners have been using a fo
5、rm of cloning when they take a cutting from a plant and place it in a suitable medium, such as soil. Another example of natural cloning is identical twins, who are produced from the same egg.artificial: not real or not made of natural thingstake a cutting from a plant place it into the soilParagraph
6、 1 Cloning is the process of making an exact copy of a plant or animal and developing it either naturally or artificially. Natural cloning has been going on for generations. For example, gardeners have been using a form of cloning when they take a cutting from a plant and place it in a suitable medi
7、um, such as soil. Another example of natural cloning is identical twins, who are produced from the same egg.identical: exactly the sameParagraph 1 Key Words Cloning is the process of making an exact copy of a plant or animal and developing it either naturally or artificially. Natural cloning has bee
8、n going on for generations. For example, gardeners have been using a form of cloning when they take a cutting from a plant and place it in a suitable medium, such as soil. Another example of natural cloning is identical twins, who are produced from the same egg.Paragraph 1: Topics Cloning is the pro
9、cess of making an exact copy of a plant or animal and developing it either naturally or artificially. Natural cloning has been going on for generations. For example, gardeners have been using a form of cloning when they take a cutting from a plant and place it in a suitable medium, such as soil. Ano
10、ther example of natural cloning is identical twins, who are produced from the same egg.definitionnatural cloningStructural MapTo clone or not to clonedefinition1natural cloning1Try to work on Paragraph 2.Follow these steps:1. Locate the key words in each paragraph.2. Find out the topics in each para
11、graph.3. Work out the logic between the topics.4. Show it in your map. For years, there had been attempts to clone animals artificially. The first successfully cloned animal was a sheep named Dolly in 1996. At first, Dolly grew normally, but later she developed an illness. After Dolly, scientists ha
12、ve cloned more than 20 mammal species, including. However, they have found a similar pattern of health problemsParagraph 2: Key Words For years, there had been attempts to clone animals artificially. The first successfully cloned animal was a sheep named Dolly in 1996. At first, Dolly grew normally,
13、 but later she developed an illness. After Dolly, scientists have cloned more than 20 mammal species, including. However, they have found a similar pattern of health problemsParagraph 2: Topicsartificial cloning: cloned mammalsTo clone or not to clonedefinition1natural cloning1artificial cloning: cl
14、oned mammals2Structural MapRead the rest 4 paragraphs.Follow these steps:1. Locate the key words in each paragraph.2. Find out the topics in each paragraph.3. Work out the logic between the topics.4. Show it in your map.Paragraph 3: Key Words In January 2018, the cloning of two long tailed monkeys,
15、Zhong Zhong and Hua Hua, was announced by Chinese scientists. They were the first-ever primates to have been cloned! In comparison with other species, cloning primates has proved to be “much harder” Dr. Sun Qiang, director of the research team, said they had been wholly devoted to the research The r
16、eason they worked so hard to break this technical barrier wasParagraph 3: Topics In January 2018, the cloning of two long tailed monkeys, Zhong Zhong and Hua Hua, was announced by Chinese scientists. They were the first-ever primates to have been cloned! In comparison with other species, cloning pri
17、mates has proved to be “much harder” Dr. Sun Qiang, director of the research team, said they had been wholly devoted to the research The reason they worked so hard to break this technical barrier wasartificial cloning: cloned primatesParagraph 4: Key Words The successful cloning of primates has led
18、to worldwide praise as a huge breakthrough that might lead to cures for various diseases and may also offer clues on how to prevent the aging process. With this technology, we have the potential to raise a large number of monkeys with identical genes. This could help save research timeParagraph 4: T
19、opics The successful cloning of primates has led to worldwide praise as a huge breakthrough that might lead to cures for various diseases and may also offer clues on how to prevent the aging process. With this technology, we have the potential to raise a large number of monkeys with identical genes.
20、 This could help save research timethe significance of cloning of primatesParagraph 5: Key Words Cloning, however, continues to be an issue that causes a great deal of disagreement and provokes strong emotions. While some people believe it is crucial for scientific advancement, others raise moral co
21、ncerns. They believe it is bound to lead to. For example, they wonder if. Furthermore, clones may. Finally, they worry.provoke: to causebe bound to: be certain toParagraph 5: Topics Cloning, however, continues to be an issue that causes a great deal of disagreement and provokes strong emotions. Whil
22、e some people believe it is crucial for scientific advancement, others raise moral concerns. They believe it is bound to lead to. For example, they wonder if. Furthermore, clones may. Finally, they worry.moral concernsParagraph 6: Key Words So far, it is still unknown what will happen to Zhong Zhong
23、 and Hua Hua as they grow up. Researchers insist that the science of cloning should be further explored and advanced. As Einstein said, “Science is a powerful instrument.”Paragraph 6: Topics So far, it is still unknown what will happen to Zhong Zhong and Hua Hua as they grow up. Researchers insist t
24、hat the science of cloning should be further explored and advanced. As Einstein said, “Science is a powerful instrument.”conclusionFind out the topics in each paragraph.To clone or not to clonedefinition1natural cloning1artificial cloning: cloned mammals2artificial cloning: cloned primates3the signi
25、ficance of cloning of primates4moral concerns5conclusion6Work out the logic between the topics.To clone or not to clonedefinition1natural cloning1artificial cloning: cloned mammals2artificial cloning: cloned primates3the significance of cloning of primates4moral concerns5conclusion6Show it in your m
26、ap.To clone or not to clonedefinition1natural cloning1artificial cloning2-4cloned mammals2cloned primates3the significance of cloning of primates4moral concerns5conclusion6Read for details:Read the first four paragraphs to answer the following questions. 1. What was the first cloned mammal? What hap
27、pened to her?2. How was the science of cloning mammals developed since the first cloned mammal?3. What development in cloning was announced in 2018? What was special about it?4. For how long did Dr. Sun Qiangs team work? Why did they work so hard?5. Why was it significant to clone primates?paragraph
28、 2paragraph 2paragraph 3paragraph 3paragraph 41. What was the first cloned mammal? What happened to her?It was a sheep named Dolly in 1996.At first, Dolly grew normally.But later she developed an illness that is more normally found in much older animals.She lived for six and a half years, only half
29、the life of the sheep from which she was cloned.2. How was the science of cloning developed since the first cloned mammal?After Dolly, scientists have cloned more than 20 mammal species, including camels, cattle, deer, dogs, goats, and mice.3. What development in cloning was announced in 2018? What
30、was special about it?In January 2018, Chinese scientists announced the cloning of two long-tailed monkeys, Zhong Zhong and Hua Hua.They were the first-ever primates to have been cloned! Cloning primates is much harder and doing so with non-reproductive cells was even more complicated.produce product
31、iverenon-Zhong Zhong and Hua Hua4. For how long did Dr. Sun Qiangs team work? Why did they work so hard?They worked 24 hours a day, 7 days a week for more than 5 years.They wanted to get animals with edited genes and produce animal models that are helpful for medical research and human health.Dr. Su
32、n Qiang and one of his team members5. Why was it significant to clone primates? might lead to cures for various diseases may offer clues on how to prevent the aging process have the potential to raise a large number of monkeys with identical genes in a short amount of time change their genes to suit
33、 research needs help save research time reduce the number of animals required for testing produce more accurate results lead to more effective treatmentsinformation that helps someone solve a mystery 提示，迹象Organize the details into your map. Put down the key words.To clone or not to clonedefinition1n
34、atural cloning1artificial cloning2-4cloned mammals2cloned primates3the significance of cloning of primates4conclusion6To clone or not to clonedefinition1natural cloning1make an exact copy of a plant or animal and develop ittaking a cutting from a plant and developing it identical twinsexamplesartifi
35、cial cloning2-4cloned mammals2cloned primates3the significance of cloning of primates41st cloned: Dolly, a sheepdeveloped an illness earlierlater: 20 mammal species2018, 2 monkeys, ChinaZhong Zhong, Hua Hua5 yearsa breakthroughmight lead to cures for various diseasesoffer clues on how to prevent the
36、 aging processRead paragraphs 5 and 6. Try to understand the details in them and add key information to your map.To clone or not to clonemoral concerns5conclusion6Paragraph 5 Cloning causes a great deal of disagreement and provokes strong emotions raise moral concerns lead to cloning of other specie
37、s, and they worry about the ethical questions this raises. For example, they wonder if clones should be treated as objects or as individuals with their own identity. Furthermore, clones may be viewed as mere copies of originals thus being seen as inferior. Finally, they worry that some organisations
38、 may abuse the technology for unethical purposes.identity: the qualities and attitudes that a person or group of people have 物体还是具有独特个性的个体Paragraph 5 Cloning causes a great deal of disagreement and provokes strong emotions raise moral concerns lead to cloning of other species, and they worry about t
39、he ethical questions this raises. For example, they wonder if clones should be treated as objects or as individuals with their own identity. Furthermore, clones may be viewed as mere copies of originals thus being seen as inferior. Finally, they worry that some organisations may abuse the technology
40、 for unethical purposes.inferior: lower in rank 低级的，低等的Paragraph 5 Cloning causes a great deal of disagreement and provokes strong emotions raise moral concerns lead to cloning of other species, and they worry about the ethical questions this raises. For example, they wonder if clones should be trea
41、ted as objects or as individuals with their own identity. Furthermore, clones may be viewed as mere copies of originals thus being seen as inferior. Finally, they worry that some organisations may abuse the technology for unethical purposes.abuse: to deliberately use something for the wrong purpose
42、滥用Paragraph 5 Cloning causes a great deal of disagreement and provokes strong emotions raise moral concerns lead to cloning of other species, and they worry about the ethical questions this raises. For example, they wonder if clones should be treated as objects or as individuals with their own ident
43、ity. Furthermore, clones may be viewed as mere copies of originals thus being seen as inferior. Finally, they worry that some organisations may abuse the technology for unethical purposes.unethical: morally unacceptableParagraph 5moral concerns5 clone other species ethical questions eg. clones: obje
44、cts or individuals with identity eg. clones: copies, inferior eg. unethical purposesParagraph 6 So far, it is still unknown what will happen to Zhong Zhong and Hua Hua as they grow up. Researchers insist that the science of cloning should be further explored and advanced. As Einstein said, “Science
45、is a powerful instrument. How it is used, whether it is a blessing or a curse to mankind, depends on mankind and not on the instrument. A knife is useful, but it can also kill.”blessing: something that is good or helpful 好事 幸事Paragraph 6 So far, it is still unknown what will happen to Zhong Zhong an
46、d Hua Hua as they grow up. Researchers insist that the science of cloning should be further explored and advanced. As Einstein said, “Science is a powerful instrument. How it is used, whether it is a blessing or a curse to mankind, depends on mankind and not on the instrument. A knife is useful, but
47、 it can also kill.”curse: something that causes trouble, harm etc 祸因What does Einsteins quote mean?“Science is a powerful instrument. How it is used, whether it is a blessing or a curse to mankind, depends on mankind and not on the instrument. A knife is useful, but it can also kill.”Science itself
48、cannot be judged as good or bad, because it can only function when it is used by humans. He also indicates that humans need to be careful with the information they learn through science and to remember to use science for good.a good thing or something that causes trouble It is unknown what will happ
49、ened. Cloning should be further explored and advanced.conclusion6Paragraph 6Talk about cloning.Use the information in the article.Use the map youve drawn. Cloning is the process of making an exact copy of a plant or animal and developing it. It can be natural or artificial. Identical twins and using
50、 cuttings from plants to develop new plants are examples of natural cloning. The first artificially cloned mammal is the sheep Dolly. It was cloned in 1996. After that, more than 20 mammal species have been cloned. But they all developed a similar pattern of health problems. The first artificially c
