Unit 3 Welcome tothe unit&reading第一课时（ppt课件） (2)-2023新牛津译林版（2020）《高中英语》选择性必修第二册.pptx

1、BY ZYHW e l c o m e&R e a d i n gBY ZYHWelcomeWelcome01BY ZYHA surgeon performs operations.12A physician is trained in general medicine.3A chemist prepares and sells medicines in a shop.4A dentist specializes in the care of peoples teeth.Welcome1专攻BY ZYHWelcome1 What jobs are shown in the pictures?W

2、rite the letters in the boxes.bdcaBY ZYHWelcome1A good mecial professionaldeterminationknowledgecommunicationcompetenceself-sacrificerich experiencecarefulnessself-disciplinekindnessdevotionWhat do you think are the necessary qualities for being a good medical professional?BY ZYHWelcome1Would you li

3、ke to be a medical professional?Will you choose this kind of major in your future?(1)The sense of achievement(2)The sense of mission(3)Money(4).(1)Afraid of blood(2)Repression(3)Overworked(4).Welcome1Would you like to become a medical professional?BY ZYHWelcome1The practice of medicine is an art,not

4、 a trade;a calling,not a business;a calling in which your heart will be exercised equally with your head.William Osler行医是艺术而非交易，是使命而非生意。在这个使命中，你要如用脑般用心。BY ZYHWelcome1Can you list some medical professionals during the outbreak of COVID-19?What do you think of them?SurgeonChemistNurseRespiratory thera

5、pist（呼吸治疗师）.Nobody is born with courage.Its just because they choose to be brave.The future is in our genesLanguage Focus:ReadingHomeworkThe future is in our genesWhat do you know about genes?Lead inPrereadingWhilereadingPostreadingHomeworkLead inPrereadingWhilereadingPostreadingWhat do you know abo

6、ut genes?DNARNAgenehelical structure 螺旋结构deoxynucleotide脱氧核苷酸Base碱基 Deoxyribose脱氧核糖 Phosphoric acid磷酸ATGCHomeworkLead inPrereadingWhilereadingPostreadingPrereadingWhilereadingPostreadingHomeworkLead inSkimmingFind the appropriate topic sentence of each paragraphPara.1:Genome editing brings many exci

7、ting possibilities.Para.2:Para.3:Para.4:Para.5:Genes play a critical role in shaping our livesGenome editing can help with disease treatment and prevention.Questions arise about how to use it appropriately.There is still much to be explored and debated on the subject of genome editing.PrereadingWhil

8、ereadingPostreadingHomeworkLead inSkimmingThe future is in our genens Para.1 many possibilitiesPara.2 play a critical rolePara.3 genome editing is an effective meansPara.4 questions about how to use it appropriately.Para.5 need to be explored furtherMain bodyPara.2-4topicdiscussionsummaryIntroductio

9、nPara.1 ConclusionPara.5PrereadingWhilereadingPostreadingHomeworkLead inScanning What is the function of the first paragraph?To introduce the topic and draw forth the following context.(引出下文）The main idea of the passage is about:The possibilities that genome editing can bringPrereadingWhilereadingPo

10、streadingHomeworkLead inScanning What is a genome?The complete set of genes inside a cell or a living being What information does our personal genome carry?make us grow and developsomething to do with our lifespan and the possibilities of suffering some diseases.PrereadingWhilereadingPostreadingHome

11、workLead inScanning How can geneticists make changes to the genome?By correcting,adding,deleting or replacing specific parts of the genetic material.What health problems could this technology be used to treat?restore a blind persons vision give someone a sense of hearing How might genome editing mak

12、e it possible to prevent diseases from developing?By correcting abnormal genes early on.PrereadingWhilereadingPostreadingHomeworkLead inScanning What is a“designer baby”?A“designer baby”is a baby whose characteristics have been specifically selected before it is born.Is genome editing a good thing?W

13、ithout appropriate controls,genome editing could be as dangerous as a car out of control.PrereadingWhilereadingPostreadingHomeworkLead inScanningWhich of the following can best describe the attitude of the author towards genome editing?Find evidence from the lecture to support your opinion.A.Critica

14、l.B.Indifferent.C.Favorable.D.Unclear.Despite the public argument over this technology,its possibilities have been creating much excitement throughout the entire medical community and beyond.Without doubt,genome editing is one of the greatest innovations in the history of science.PrereadingWhileread

15、ingPostreadingHomeworkLead in PrereadingWhilereadingPostreadingHomeworkLead inScanning True or false.1.Genes play a critical role in shaping our lives.2.Genome editing will lead to a fundamental change in our approach to health care.3.Philosophers,geneticists and government officials have all starte

16、d to wrestle with the use of genome editing to the treatment and prevention of diseases.moral issues like creating what some have called“designer babies”.PrereadingWhilereadingPostreadingHomeworkLead inDiscussion What do you think of designer babies?PrereadingWhilereadingPostreadingHomeworkLead inPr

17、osperfectly healthystronger and cleverer than ordinary babies.have substantially longer lifespan.further the cause of science.(促进科学事业）.Consnot be successful all the time.cause a rift in the societal balance.(造成社会不平衡）lose individuality and become manufactured goods.(失去个性，成为制造品).PrereadingWhilereadingPostreadingHomeworkLead in Every coins has two sides.Technology is a double-edged sword.(双刃剑)A new technology or achevement has both good and bad aspects.SummaryWe should treat them correctly and make use of scientific and technological progress for the benefit of mankind.THANKS