【文章內(nèi)容簡介】 their first in appearance, but all the evidence suggests the two would have very different personalities. Twins separated at birth do sometimes share personality characteristics, but such characteristics in a cloned son or daughter would only be reminders of the child who was lost. 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 Para. 10a Even in terms of biology, a clone would not be identical to the ―master copy‖. The clone’s cells, for example, would have energyprocessing machinery that came from the egg, not from the person who was cloned. But most of the physical differences between originals and copies are so minor that detection of them would require a sophisticated laboratory. The one possible exception is bearing children. 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading Para. 10b The scientists responsible for the successful cloning are not sure that Dolly will be able to have lambs. They will try to find out once she’s old enough to breed. Para 11 What if parents decided to clone a child in order to harvest organs? Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading Para. 12 Most experts agree that it would be psychologically harmful if a child sensed he had been brought into the world simply as an organ donor. But some parents already produce second children with nonfatal transplants in mind, and many experts do not oppose this. Cloning would increase the chances for a tissue match from 25 percent to nearly 100 percent. Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading Para. 13 If cloned animals could be used as organ donors, we wouldn’t have to worry about cloning twins for transplants. Pigs, for example, have organs similar in size to humans’. But the human body attacks and destroys tissue from other species. To get around that, one pany is trying to alter the pig’s geic code to prevent pig organs from being attacked. If the pany’s technicians succeed, it may be more efficient to produce such pigs by cloning than by current methods. Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading 句型 Para. 14 How would a human clone refer to the donor of its DNA? Para. 15a ―Mom‖ is not right, because the woman who supplied the egg and gave birth to the infant would more appropriately be called Mother. ―Dad‖ isn’t right, either. A traditional father supplies only half the DNA in a child. Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading Para. 15b Judith Martin, in her writings under the name of ―Miss Manners‖, suggests the phrase, ―Most honored sir or madam‖. Why? ―One should always respect one’s ancestors,‖ she says, ―regardless of what they did to bring one into the world.‖ Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading 句型 Para. 16 That still leaves some confusion over vocabulary. The editorial director of one dictionary says that the noun ―clonee‖ may sound like a good term, but it’s not clear enough. Instead, he prefers ―original‖ and ―copy‖. Para. 17 What are the other implications of cloning for society? Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading Para. 18a The gravest concern isn’t really cloning itself, but geic engineering— the deliberate altering of genes to create human beings according to certain requirements. Specifically, some experts are concerned about the creation of a new (and disrespected) social class: ―the clones‖. One expert believes the situation could be parable to what occurred in the 16th century, Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading 句型 Para. 18b when Europeans puzzled over how to classify the unfamiliar inhabitants of the Americas, and endlessly debated whether or not they were humans. Para. 19 The list of questions could go on。 people are just beginning to wonder about the future of the world after cloning. Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 Structural Analysis? 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Text Analyzing and Reading Structural Analysis? 句型 Abridgement of Text Now that we bee more at home with the organization of the text, as shown in the tree structure above, what can we derive from the text in order to abridge it into an threeparagraph essay. Let’s see what can be derived from the text for our purpose first: Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Abridgement of Text Legal and Moral Implications of Cloning Para. 1 Word that scientists succeeded in cloning an adult mammal—an achievement long thought impossible—caught the imagination of everyone. With Dolly brought into the world, a world with human clones was suddenly within reach. In the wake of that news, therefore, governments hurried to draft guidelines for the unknown, a future filled with incredible possibilities. In effect, the birth of Dolly, Back 預(yù)習(xí) 小結(jié) 導(dǎo)入 寫作 課文閱讀 隨 筆 課文縮寫 結(jié)構(gòu)分析 Abridgement of Text like the Theory of Relativity and the first space flight, has generated a long list of difficult puzzles for scientists, p