1、Unit 3Fit for lifeWelcome to the unit &Reading(I)Is Medicine the right major for you?President Xi said since the COVID-19 outbreak, a great number of medical workers have raced against time and fought tenaciously against the virus at the frontlines. They have made significant contributions in fighti
2、ng the epidemic, and demonstrated the noble spirit of giving priority to saving lives with total devotion and ultimate love.Medical professionals work hard to keep us healthy. Look at the pictures below and discuss the following questions in pairs.a. A surgeon performs operations.b. A physician is t
3、rained in general medicine.c.A chemist prepares and sells medicines in a shop.d. A dentist specializes in the care of peoples teeth.bdcaStep 1 Lead-in What do you know about genes?A gene is a small section of DNA which controls a particular quality in a living thing that has been passed on from its
4、parents.IntroductionPara.1: Genome editing brings many exciting possibilities.Main bodyPara.2:Para.4:Para.5:ConclusionGenes play a critical role in shaping our lives.Para.3:Genome editing can help with disease treatment and prevention.Many people are concerned about how to use genome editing appropr
5、iately.Despite the public argument, genome editing is one of the greatest inventions in the history of science.与某人分享某事L4在中起关键作用 L6取决于；依赖；依靠L7感染某种病毒L11更有可能做某事L12与.有关L14 一种有效的方式L15允许某人做某事 L16大范围的；许多各种不同的L18使.成为可能L21起到.作用L23通往的方法L24以很快的速度L25限制.的使用L26阻止某人做某事L27对感冒的抵抗力L29努力解决L34对某人有利L36失去控制L37毫无疑问的是L42与某
6、人分享某事L4在中起关键作用 L6取决于；依赖；依靠L7感染某种病毒L11更有可能做某事L12患上某种癌症L12与.有关L14 一种有效的方式L15允许某人做某事 L16大范围的；许多各种不同的L18share sth with sbplay a critical role indpend oncontract certain diseasesbe more likely to sthdevelop a particular form of cancerrelate toan effective means of.allow sb to do stha wide range of.使做某事.成
7、为可能L21起到.作用L23通往的方法L24以很快的速度L25限制.的使用L26阻止某人做某事L27对感冒的抵抗力L29努力解决L34对某人有利L36失去控制L37毫无疑问的是L42make it possible to do sthserve as.approach to sthat a fast pacerestrict (our) use of.prohibit sb from doing sthresistance to coldswrestle withwork to our advantageout of controlwithout doubtStep 2 Careful Rea
8、dingPara.2Main Idea.AspectsGenes play a critical role in shaping our lives.The of eyes and of math.Make us and . Helps determine and affects our chances of .colourour talentgrowdeveloplifespancontracting certain diseases1. What information does our personal genome carry?It carries all the informatio
9、n needed to make us grow and develop from the colour of our eyes to our talent for maths; it also contains information that helps determine our lifespan and affects the chances of contracting certain diseases.Para.23.How might genome editing make it possible to prevent diseases from developing?Para.
10、 3By correcting abnormal genes early on.2.How can geneticists make changes to the genome? By correcting, adding, deleting replacing specific parts of the genetic material.4. What is a “designer baby”?Para. 4A “ d e s i g n e r b a b y ” i s a b a b y w h o s e characteristics have been specifically
11、selected before it is born.5 .What dose the lecturer compare uncontrolled genome editing to?A car out of control.Step3 BrainstormingWhat other characteristics will you select?step4 Critical thinkingA Chinese researcher, He Jiankui, shocked the world two weeks ago when he revealed that the worlds fir
12、st genetically edited babies had been born. Jiankui claimed to have edited embryos(胚胎胚胎) before implanting(移植移植) them into the mother. Jiankui used a easy gene-editing technology to disrupt the gene for CCR5. He claimed that disruption of CCR5 would ensure that these babies would be protected from c
13、ontracting HIV infection.Since his bold announcement via YouTube, the scientific community at-large both in the United States and in China has strongly denounced this work as deeply unethical and dangerous.We should use genome editing appropriately. Without appropriate controls, genome editing could be as dangerous as a car out of control.Thank you.
