高中英语Unit2《Cloning》课件WarmingupReading新人教版选修81 3.docx

1、高中英语Unit2Cloning课件WarmingupReading新人教版选修81 3幻灯片1Period 1 Warming up& Reading 幻灯片2A strawberry plantThe plant produces its own runners.幻灯片3A stem Take cuttings from growing plants to make new ones. 幻灯片4They are identical in sex and appearance, who are produced from the same original egg. 幻灯片5Dolly th

2、e sheepdifferent fromShe was c_while the others were born naturally. It is the exact copy of another sheep and the first cloned mammal. loned幻灯片6Its name is Andi, the first genetically modified monkey.幻灯片7Dog Snuppy was created by Korean and American scientists幻灯片8Cloning is a way of making an exact

3、 _ of another animal or plant.copy幻灯片9 Clone, also called reproduce asexually (无性生殖 /繁殖), is the creation of cells or whole animals using DNA from a single “parent”, without using the normal reproductive (有性生殖) process. The clone has the exactly same DNA to the parent. It includes natural and man-ma

4、de clone.幻灯片10Prediction What do you think the article is about by reading this headline?幻灯片11What is the main idea of the passage?The passage tells us that animal cloning raised _ and scientists are not sure about its_.argumentsfuture What is the writing style? Expositive(说明文) Descriptive（记叙文） C. A

5、rgumentative（议论文）幻灯片12Skimming _.Cloning has two major uses and successful clone._.Cloning is a way of making an exact copy of another animal and plant(definition)_. The effect of Dolly._. It is forbidden to clone human beings._.The problems of Dolly.21453幻灯片13making an exact copyDefinition2 major u

6、ses of cloningCloning procedureThe first successful animal cloneIt is a way of _ of another animal and plant.1)to produce _quantities of plants . 2)It is valuable for research on new _and medical research on _. Cloning plants _while cloning of animals is _The cloning of_, a _ in cloning mercialplant

7、s speciesanimalsstraightforwardcomplicatedDolly the sheepbreakthrough幻灯片14Procedure of Cloning a Sheep幻灯片15True of false : Four female sheep participate in the cloning of a new sheep. Electricity is needed in the procedure. Sheep B provides a somatic cell for the clone. The lamb is the exact copy of

8、 sheep A.FTTF幻灯片16Which of the following statements about cloning is NOT true according to text? A. Cloning is something that has been developed quite recently. B. Twins that look exactly the same are originally from the same egg.C. Cloning is used by gardeners to make more money.D. Animal cloning i

9、s much more difficult than plant cloning.幻灯片17 The cloning of Dolly the sheep succeeded because_. A. its easier to clone a sheep than other animals B. the scientists were determined and worked hard with patience C. the scientists were rewarded and got lots of money D. many other attempts to clone ma

10、mmals failedThe determination and patience of the scientists was rewarded/ paid off. 幻灯片18The problems of Dolly the sheepThe effect of Dolly the sheep Encouraging news : It seemed to develop _ and produced _in a _way. Disturbing news:It lived for _ years, half the length of the life of the _ sheep.

11、Its appearance raised a storm of _and had a great impact on the _ and public_. It opened everybodys eyes to the possibility of using cloning to cure _and even produce _.normallynaturala lamb6originalobjectionsmediaimaginationserious illnesseshuman beings幻灯片19Arguments on cloning Evil leaders hope to

12、 clone _. Religious leaders raised _ questions. Many governments _ research into human cloning. Some countries continued to _evidence of the abundant medical aid.themselvesmoralforbadeaccumulate幻灯片20Advantages of cloningplantnew Cloning plants can be useful for research on _ _ _.speciesquantities Cl

13、oning plants can produce large _ of plants for _.salemedical Cloning is valuable for _ research on animals. cures Medical cloning could produce _for serious illnesses in humans.Problems of cloningillnesses Animal clones may develop the _ of older animals Animal clones may die _ than the original ani

14、mals.youngerEvil leaders _ _may want to clone themselves. moralobjections There are_ _to cloning human beings.幻灯片21 We can conclude _ Cloning is good for us. Cloning has two aspects. If cloning is used in a correct way it can bring many convenience to us. If cloning is used in an evil way it can cause much trouble.