Unit 9 Lesson 1 To Clone or Not to Clone （ppt课件）(01)-2023新北师大版（2019）《高中英语》选择性必修第三册.pptx

1、Unit 9 Human BiologyLesson 1Lead-inWhat do you know about cloning?What additional information would you like to know?Use the words and phrases to help you.cellto edit genesto develop artificially to break the technical barrierspeciesidentical genesto make an exact copy ofto produce animal modelsExam

2、pleCloning is the process of producing individual organisms with identical DNA,either by natural or artificial means.I want to know how to edit genes.克隆克隆（Clone）是指生物体通过体细胞进行的无性繁殖，以及由无性繁殖形成的基因型完全相同的后代个体组成的种群。通常是利用生物技术由无性生殖产生与原个体基因完全相同的个体或种群。Lead-inReadingRead through the article.Draw a structural map

3、 to show how the paragraphs are organised.Para.1 Definition and classificationAttemptsPara.2 DollyPara.3 Zhong Zhong and Hua HuaOpinionsPara.4 Possible benefitsPara.5 DisagreementPara.6 Conclusion克隆羊多莉（Dolly），于1996年7月5日诞生于英国爱丁堡市罗斯林研究所，是一只通过现代工程创造出来的雌性绵羊，也是世界上第一个成功克隆的人造动物。ReadingWatch the video.Whats

4、 the main idea?ReadingRead paragraphs 1-4 and make detailed notes about cloning that better illustrate the information.Then share your notes in a small group.AttemptsDollya short life,health problemsidentical twinsZhong Zhong and Hua Huafirst-ever primatesmuch harderwholly devotedReadingRead the fir

5、st four paragraphs again.Ask and answer the questions in pairs based on your notes.(1)What is cloning?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?An example of natural cloning is

6、taking a cutting from a plant and putting it in soil,and another is identical twins.(3)What was the first cloned mammal?What happened to her?The first successfully cloned mammal was a sheep named Dolly.She developed an illness that is more normally found in much older animals and lived for six and a

7、 half years.Reading(4)How has the science of cloning developed since the first cloned mammal?Scientists have been able to clone animals of other species.(5)What development in cloning was announced in 2018?What was special about it?The first two long-tailed monkeys were cloned.Cloning a primate is m

8、ore difficult than cloning other animals.(6)For how long did Dr.Sun Qiangs team work?Why did they work so hard?More than 5 years.To get animals with edited genes and produce animal models that are helpful for medical research and human health.ReadingRead paragraphs 5-6 and complete the notes.Potenti

9、al benefitsMoral concerns might lead to cures for various diseases may offer clues on how to prevent the aging process save research time reduce the number of animals required for testing produce more accurate results lead to more effective treatments.has refreshed the technical possibility of cloni

10、ng of other species if clones should be treated as objects clones may be viewed as mere copies of originals some organisations may abuse the technology for unethical purposes.ReadingRead the last paragraph.What does Einsteins quote mean?“Science is a powerful instrument.How it is used,whether it is

11、a blessing or a curse to mankind,depends on mankind and not on the instrument.A knife is useful,but it can also kill.Einsteins quote means that science itself cannot be judged as good or bad,because it can only function when it is used by humans.He also indicates that humans need to be careful with

12、the information they learn through science and to remember to use science for good.ReadingTalk about cloning using the information in the article.ReadingThink and share.(1)Why do researchers insist that the science of cloning should be further explored and advanced?Because they can continue making p

13、rogress in curing diseases and developing treatments.(2)What is the writers attitude towards cloning?Find evidence.The writer thinks that cloning can be a helpful tool in medical research but that it can also be dangerous.Evidence of this is in the writers use of Einsteins quote.ReadingRead the firs

14、t sentence of each paragraph.Are there any signal words,such as linking words or time expressions,that help to make the article coherent?Para.2:for yearsPara.3:in January 2018Para.5:howeverPara.6:so farReadingComplete the summary using the information in the article.Natural cloning has taken place f

15、or generations.An example of this is identical 1 _.A sheep called Dolly was the first mammal to be cloned 2 _.Since Dolly,more than 20 mammal 3 _ have been cloned including camels and goats.In 2018,China announced that two monkeys had been cloned.In comparison with other species,scientists have had

16、to work hard to break the technical 4 _ to get primates with 5 _ genes.PracticetwinsartificiallyspeciesbarrierseditedScientists say that this major breakthrough offers the 6 _ to create monkeys with 7 _ genes to give more 8 _ research results and perhaps lead to 9 _ for various diseases.Whilst scien

17、tists insist it is 10 _ to continue research,others raise 11 _ concerns and worry that the technology might be 12 _ by some organisations.Practicepotentialidenticalaccuratecurescrucialmoralabused1.Search online and find more information about the development of cloning.Share the information in class.2.Do you think cloning is a good idea?Use what you have learnt to try to persuade someone to accept your point of view.AssignmentGoodbye!