1、选择性必修第三册Unit 9 Lesson 1 To clone or not to cloneStudent WorksheetI. Activate and share. Have you heard of Dolly the sheep?What do you know about her?n Dolly is the first mammal ever to be cloned artificially from another adult sheep.n It took scientists many attempts to produce Dolly.n Dolly was put
2、 to sleep in 2003 due to a growing lung disease.n She only lived six and a half years while a typical life span for a sheep is about 10 to 12 years.n Her birth was of huge excitement both to the scientific world and to the public. _II. Read and explore.1. Read through the article and summarize the m
3、ain idea of each paragraph with some key words.Para1: Definition of cloning and examples of natural cloningPara2:_Attempts to clone animals artificiallyPara3: The first cloned primatesPara4: _Potential benefits of cloningPara5: Moral concerns about cloningPara6: Attitudes towards cloning2. Read para
4、graphs 1-3 and answer the questions.1) What is cloning? (para1)Cloning is the process of making an exact copy of a plant or animal and developing it either naturally or artificially.2) What examples of natural cloning are given? (para1)An example of natural cloning is taking a cut from a plant and p
5、utting it in soil, and another is identical twins.3) What happened to Dolly? (para2)Dolly developed an illness and died when she was six and a half years old.4) What happened to other cloned mammals? (para2)The other cloned species suffered a similar pattern of health problems.5) What was special ab
6、out the first cloned monkeys? (para3)They were the first-ever primates to have been cloned. Cloning primates with non-reproductive cells was more complicated than cloning other animals.6) Why did scientists work so hard to clone primates? (para3)They wanted to break this barrier to get animals with
7、edited genes and produce animal models that are helpful for medical research and human health.3. Read paragraphs 4-5. List the potential benefits of and moral concerns about cloning primates.Potential benefitsMoral concernswill lead to cures for various diseases offer clues on how to prevent the agi
8、ng processsave research timereduce the number of animals required for testingproduce more accurate resultslead to more effective treatmentshas refreshed the technical possibility of cloning of other speciesclones should be treated as objects or as individuals with their own identityclones may be vie
9、wed as mere copies and seen as inferiorsome organizations may abuse the technology4. Read the last paragraph and answer the questions.1) What does Einsteins quote mean?Einsteins quote means that science itself cannot be judged as good or bad, because it can only function when it is used by humans. H
10、e also indicates that humans need to be careful with the information they learn through science and to remember to use science for good.2) Why do researchers insist that the science of cloning should be further explored and advanced?Researchers insist on exploring cloning to continue making progress
11、 in curing diseases and developing treatments.IV. Language Focus 知识点1.is capable of有能力做某事2.break the technical barrier突破壁垒3.make an exact copy准确地复制4.in comparison with对比5.be bound to succeed定会成功6.It is unknown whether无人知道是否7导致，引起lead to 8.证明是prove to be9全身心地投入到wholly devote to10. 有可能做have the potent
12、ial to do11. 适应研究需要suit research needs12. 12.引起强烈反对情绪provoke strong emotions13. 提出道德方面地研究raise moral concerns 14. 14.被看作be viewed as 15.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
13、 knife is useful, but it can also kill.”翻译：正如爱因斯坦所言：“科学是一种强有力的工具。怎样使用它，究竟是给人类带来幸福还是带来灾难，完全取决于人类自己，而不取决于工具。刀子是有用的，但刀子也能杀人。”V. Make a summary (P54 Exercise10)VI. Critical Thinking.1. What is the writers attitude towards cloning?The writer is quite neutral towards the technology of cloning. He feels th
14、at cloning can be a helpful tool in medical research but that it can also become dangerous. We can continue exploring and developing cloning technology, but we should be cautious in applying it and use it for the greater good of human beings.2.How do you understand the title “to clone or not to clon
15、e”? To be or not to be, that is the question is the most famous soliloquy(独白) in the works of Shakespeare. The writer of this passage may have borrowed Shakespeares pattern for the title, meaning that its a question that deserves our careful and deliberate thought.3.Do you think cloning is a good idea? Use what you have learnt to try to persuade someone to accept your point of view.