上课-book8unit2CloningWarmingUp

1、1.identical 同一的；一模一样的同一的；一模一样的2.differ 不同；相异不同；相异sth. differ from sth. : 某物与某物不同某物与某物不同difference n. 不同不同 different adj. 不同的不同的3.cutting 剪枝剪枝;剪纸剪纸 4.identical 同一的；一模一样的同一的；一模一样的5.nucleus 原子核原子核6.somatic 躯体的；细胞体的躯体的；细胞体的7.embryo 胚胎；胚胚胎；胚8.carrier 携带者；搬运工携带者；搬运工10.moral 道德的；伦理的道德的；伦理的11.DNA 脱氧核糖核酸脱氧核糖

2、核酸clone英英klnn. 克隆克隆;无性繁殖；靠无性繁殖；靠营养生殖而由母体分离营养生殖而由母体分离繁殖的植物繁殖的植物 vt. 无性繁殖，复制无性繁殖，复制12.family structure 13.have a huge impact on 14.biodiversity 15.induce the new disease 16.be disadvantageous to 17.save peoples lives 18.a liver transplant 19.medical need 20.ethical 21.create one new slavery 12.家庭结构家庭结

3、构13.对对有很大的冲击有很大的冲击14.生物多样性生物多样性15.诱发新的疾病诱发新的疾病16.对对是不利的是不利的17.拯救人类的生命拯救人类的生命18.肝脏移植肝脏移植19.医疗需要医疗需要20.道德的道德的;伦理的伦理的21.创造一个新的奴隶制度创造一个新的奴隶制度Book 8Unit2 Cloning video 1997年年2月月22日，英国日，英国“Nature”刊登了爱丁堡罗斯林研刊登了爱丁堡罗斯林研究所维尔穆特的研究成果，即究所维尔穆特的研究成果，即“多莉多莉”羊的克隆成功，从此羊的克隆成功，从此震惊了世界。震惊了世界。a cloned sheepHow will you p

4、lant a rose? By sowing seeds ?Can you grow the cutting of a rose?What is a clone?Thinking and Defining It is a way of making an exact copy of another animal or plant.Clone? Natural cloneMan-made cloneNatural clone is one that occurs from the “parent” in a natural form of cloning without human help.

5、Man-made clone is one produced through human intervention (介入介入) .natural clonesnatural clonesman-made clones 第一只克隆宠物猫第一只克隆宠物猫cloned rabbit克隆的荧光小猪克隆的荧光小猪(左左)和和正常小猪正常小猪(右右)克隆马及其克隆马及其“母亲兼姐姐母亲兼姐姐”The worlds first cloned mule (驴驴), was born on May 4. He is created from a cell of his brother.The worlds f

6、irst cloned cat, kitten, namedCc. It was created using a cell taken from an adult cat, Rainbow. In pairs, look at these pictures and discuss which ones are natural clones and which ones are man-made. Think about how they differ. 1. Its the most famous sheep in the world. Do you know how Dolly is dif

7、ferent from other sheep?She was cloned while the others were born naturally. It is the copy of another sheep. 2. What can you see in the second picture?A strawberry plant produce runners in a natural form of cloning.3. Who cut off the stem of the plant?A gardener. And the gardener is going to put it

8、 into a pot to produce another plant.4. What do you know about twins?There are twins of the same sex and those of different sexes. The twins here are identical in sex and appearance and are good examples of natural clones. They carry the same genetic information.Are the following clones the same? If

9、 not, what is the difference?NO. Dolly is an example of man-made clone. The twins are natural clones.Dolly and its creatorScientific Definition Cloning is the creation of cells or whole animals by using DNA from a single “parent”, not with the normal reproductive process. The clone has the same DNA

10、to the “parent”.What is man-made cloning?How is a clone produced?Quiz 1.Snoopy was a dog cloned by _A.Chinese B German C South Korean2. Dolly the sheep died at the age of _.A.12 B.6 C.153.Dolly the sheep was cloned in_.A. the 20th century B the 21st century True or False1. Cloning means making a cop

11、y of another animal or a plant.2. Gardeners can make a lot of money by cloning plants.3. Cloning animals is as complicated as cloning plants.4. Dolly the sheep was the first successful clone of a mammal.5. Natural clones happen in animals as well as in plants.TFTTTQuiz 6.Clone is valuable for medica

12、l research on animals.T 1.What problems may arise when 1.What problems may arise when cloning technology is used ?cloning technology is used ?？on medical aspect: on ethical aspect :on physiological aspect:Thinking and Discussing 2.What benefits will clone bring to 2.What benefits will clone bring to

13、 people?people?Problems or dangers of cloningAnimal clones may develop the illnesses of older animals.Animal clones may die younger than the donor animals.Evil leaders may want to clone themselves.There are moral objections to cloning human beings.Advantages of cloningMedical cloning could produce c

14、ures for serious illnesses in humans. Cloning plants can produce plants of similar quality for sale.Cloning plants can be useful for research on new plant species.Cloning can help save endangered animals. 1.What problems may arise when 1.What problems may arise when cloning technology is used ?cloning technology is used ?Make a Report 2.What benefits will clone bring to 2.What benefits will clone bring to people?people?Someone in our team think that However , most of us belie