Unit9 Human Biology Lesson 1 To Clone or not to Clone 课件-2023-2024学年高中英语北师大版（2019）选择性必修第三册

Unit 9 Human Biology Lesson1 To clone or not to clone? Period 2 What is the writer’s attitude towards cloning? Find evidence. The writer feels that cloning can be a helpful tool in medical research but that it can also become dangerous. Evidence of this is in the writer’s use of Einstein’s quote . Post-reading Think and share To clone or not to clone? Voice your opinion Debate Positive Negative 1.Improve the food supply 2.Allow pets owners to find greater comfort. 3.Bring back extinct plants or animals. 4.Save research time. --- 1.Clones’ health problems 2.Moral concerns 3.The identity of clones is also questioned. 4.Cost much money. --- Cloning is a good idea Cloning might lead to cures for various diseases and may also offer clues on how to prevent the aging process. Besides, cloning can change animals’ genes to suit research needs so as to save research time, produce more accurate results and lead to more effective treatments. At the same time, it also reduces the number of animals required for testing. So it benefits not only mankind but also animals in a way. According to Einstein, science is just a tool. So, we should regulate the way we use tools instead of giving them up. Cloning is a bad idea Clones always develop a similar pattern of health problems and die at an early age, which is an unsolved problem. Besides, cloning raises moral concerns. Some believe it is bound to lead to cloning of other species. The identity of clones is also questioned. Are they objects or individuals with identity? Will the technology be abused by some organisations? According to Einstein, used in a wrong way, useful tools can also kill. So, we should stop cloning so as to avoid the potential problems. So it is_________________that matters. 2.To raise their awareness of online information security. Technology is a double-edged sword. We should use cloning properly and correctly. There is no good or bad science but good or bad use. ? the person who