Unit 9 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 Lesson 1 Grammar Focus Watch the video. What’s the main idea? Reading Revision Do you think cloning is a good idea? Use what you have learnt to try to persuade someone to accept your point of view. Views It’s a good idea: It’s a bad idea: the potential of cloning scientists’ devotion Einstein’s quote … clones’ health problems moral concerns Einstein’s quote … 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. Do you think cloning is a good idea? Observing In the last few years, China has made great achievements in environmental protection. The government has closed some heavily polluting factories down since 2012. So the air has become much cleaner to breathe so far. Chinese culture has become an interest for people all over the world since the Shanghai Expo and many foreigners are discovering the history of China. Besides, the Belt and Road Initiative has improved connection among the countries. China has become one