Unit 9 Lesson 1 课件-2023-2024学年高二英语【精耕团队】同步精品课件（北师大版2019选择性必修第三册）

高二英语精耕团队 范冬烨 To Clone or Not To Clone Learning objectives 1. Read for specific information about clone and understand words and sentences in text； 2. Develop students’ basic reading and talking skills； 3. Learn about the advantages and disadvantages of clone and discuss whether it is moral to clone. By the end of this period, you will be able to: 1. cell 7. species 2. to edit genes 8. identical genes 3. to develop artificially 4. to make an exact copy of 5. to break the technical barrier 6. to produce animal models Pre-reading What do you know about cloning? What is cloning? Cloning is the process of making an exact copy of a plant or animal with identical genes and developing it either naturally or artificially. Underline the topic sentenceof each paragraph. Cloning is the process of making an exact copy of a plant or animal and developing it either naturally or artificially. Topic sentence of Para.1 Main idea: The definition of cloning. Para.1 Underline the topic sentenceof each paragraph. For years,there had been attempts to clone animals artificially,however, they have found a similiar pattern of health problems. Topic sentence of Para.2 Main idea: cloned mammals. Para.2 Underline the topic sentenceof each paragraph. In 2018 , the first two long-tailed monkeys were cloned.they were the first-ever primates to have been cloned. Topic sentence of Para.3 Main idea: The first cloned primates. Para.3 Underline the topic sentenceof each paragraph. 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. Topic sentence of Para.4 Main idea: the significance of cloning of primates. Para.4 Underline the topic sentenceof each paragraph. Cloning,however,continues to be an issue that causes a great deal of disagreement and provokes stronge motions. Topic sentence of Para.5 Main idea: Moral concerns.