Unit 2 Workbook Cloning where is it leading us （ppt课件）-2022新人教版（2019）《高中英语》选择性必修第一册.pptx

1、New words:identical adentkl adj.完全相同的;同一的straightforward stretfwd adj.直截了当的;简单的complicated kmplketd adj.复杂的;难懂的nucleus njuklis n.核;原子核;细胞核somatic smtk cell adj.体细胞的;躯体的embryo embri n.胚,胚胎breed brid v.繁殖;孕育transplant trnsplnt vt.&n.移植(器官、皮肤等)ultimately ltmtli adv.最终;最后ethical ekl adj.道德的;合乎道德的;伦理的199

2、6 cloned sheep 2001 cloned cattle2002 cloned rabbits&cats 2005 cloned dogs2018 cloned monkeysWorkbook Unit 2CLONING:WHERE IS IT LEADING US?Yu Lixia Huzhou High Schoolcloning humans?BibleGod created humans on the 6th day.illegal/immoralviolate the law of nature Cloning humans should bebanned/prohibit

3、ed/forbidden.Whats the writing style of the passage?A.narration(记叙文)B.argumentation(议论文)C.exposition(说明文)Activity 1 a feature article（专题文章）from a newspaper Activity 2 Topics of each paragraphA.Possible uses of cloning in the futureB.Whether cloning is good or badC.Current uses of cloningD.What cloni

4、ng isE.How cloning a sheep worksF.Moral and ethical concerns about cloningPara 1.Para 2.Para 3.Para 4.Para 5.Para 6.DCEAFBstructuretopic sentencesintroduce the topicheated discussionsPara 6 Whether cloning is good or badCLONING:WHERE IS IT LEADING US?summarize the main idea of the passagecatch the r

5、eaders eye/capture the readers attentionarouse the readers curiosity/interestechoa catchy titleCloning is a way of making an exact copy of another animal or plant.Para 1 What cloning is When does the natural cloning happen?in plants when gardeners take cuttings from growing plants to makenew onesin

6、animals when identical twins are produced from the same eggPara 2 Current uses of cloningsignpostslinking wordscohesioncohesivePara 3 How cloning a sheep works1.母羊A提供一个卵细胞。2.在卵细胞中取出细胞核。3.卵细胞准备接受新的细胞核。4.母羊B提供一个供克隆的躯干细胞，该细胞应包含生产一头新羊所需要的全部基因。5.取出该细胞的细胞核。6.用电把母羊B的躯干细胞核和母羊甲的卵细胞连接起来。7.细胞分裂并生长成胚胎。8.把胚胎置入另外

7、一头寄生的母羊C体内，母羊C就是克隆羊的代孕。9.这头小羊羔就是母羊B所提供的细胞核克隆而成的。nucleus The cloned lamb looks the same with A?B?C?egg cell卵细胞卵细胞somatic cell体细胞体细胞embryo 胚胎胚胎carrier代孕代孕羊羊cloned lambegg cell without nucleusjoined12345678BIt is the _and _of scientists that make the human progress possible and make the earth a better

8、place to live in.Do the same thing again and again but expect different results.-Albert Einsteintheir determination and patience paid off commitment/devotion creativity/innovation/visionperseverance/persistence/unremitting effortsPara 4 Possible uses of cloning in the futuresignpostsmoral and ethica

9、l concerns about cloning possible uses of cloning in the futureit would probably _in a zooThe _of using cloning to produce human beings is an _ concern.What would happen if such knowledge ended up _?end up livingeating animal products from cloning might _our health over timebreed _ animal species or

10、 even bring back _ speciesgrow _ in animals for human organ _or medical treatmentsbreed animals that will _even _ for the animal as a source of organ _-because it will _ or even diein the wrong handsendangeredhuman organs or tissuetransplants be harmful toworsePara 5extinctprovide us withhigher qual

11、ity meat,milk or eggstransplantsbe injuredpossibilityeven biggerNot letting us clone humans is not letting us fixed our mistakes.Can human history be structured in this way?不让我们克隆人,就是不让我们修正我们的错误,人类历史难道能够这样构造吗？New York Times Book ReviewOf course we should“clone”people.If anyone who has first mastery

12、of the technology,he is my real and also the only rival.当然应该克隆人,如果谁第一个掌握了这个技术,他就是我真正的、也是唯一的竞争对手。-Bill GatesEvery generation should at least through the baptism（洗礼）of a war.Hitler:an evil leader heated discussions about human cloningFor Against Where cloning is leading us depends on human beings.Doll

13、y became seriously ill and the illnesses were more appropriate to a much older animal.A cloned animal lives shorter than the original one.The problems of DollyWhat is the authors attitude towards cloning?A.positive B.negative C.objective D subjectivecloningcurrent uses&possible future usesthe bigges

14、t concernsActivity 3 a controversial issuea better readertitle&pictures(to predict)signpoststopic sentencesread between the linesActivity 4 writing stylestructureadvantages/benefitsproblems/concerns produce large quantities of plants for salevaluable for research on new plant species and animalsbrin

15、g back endangered or extinct animalsbe used to grow human organs or tissueprovide humans with higher quality meat,milk,or eggscure serious illnesses like Parkinsons disease帕金森症 or Alzheimers disease老 年痴呆症)help infertile(不能生育的）people to have babies uA cloned animal develops serious illnesses and live

16、s shorter than the original one uA cloned extinct animal may end up living in a zoo.uIt is even worse for the animal to use it as a source of organ transplants because it will be injured or even die.uEating animal products from cloning might be harmful to our health over time.uEvil leaders might wan

17、t to clone themselves to attain their ambitions.a double-edged swordActivity 5 你校将举办英语演讲比赛，请你以Cloning:Where Is It Leading Us?为题写一篇发言稿参赛，内容包括：1.分析克隆的利弊；2.表达自己的观点。注意：1.词数 80 左右；2.可以适当增加细节，以使行文连贯。My dear fellows,Im greatly honored to stand here to deliver a speech titled Cloning:Where Is It Leading Us.

18、Cloning is a great breakthrough of technology.On one hand,it brings countless benefits to us,from helping produce large quantities of plants for sale to curing serious illnesses.On the other hand,it may result in ethical concerns.Firstly,it is immoral to let the cloned extinct animal live in a zoo.W

19、hats worse,eating animal products from cloning might be harmful to our health over time.In a word,cloning is a double-edged sword.However,where cloning is leading us depends on human beings.Thats all.Thanks for listening!Assignment1.Surf the Internet to know more about cloning.2.Finish and polish your composition.3.Practice the reading tips in the exercises.Learning without thinking is useless;thinking without learning is perilous.学而不思则罔,思而不学则殆Activity 6