单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit2 Cloning,Period 1 Warming up&Reading,She was,c_while,the others were born,naturally,.It is the exact copy of another sheep and the first,cloned mammal,.,loned,Dolly the sheep,没爹没娘的多莉羊,The worlds first cloned cat,kitten,named,Cc.It was created using a cell taken from,an adult cat,Rainbow.,Dog,Snuppy,was created by Korean and American scientists,Its name is,Andi,the first,genetically modified,monkey.,cloned,rabbit,克隆的荧光小猪,(,左,),和,正常小猪,(,右,),克隆马及其,“母亲兼姐姐”,A strawberry plant,The plant produces its own,runners.,Not only animals but also plants can be cloned,A stem,Take,cuttings,from growing plants to make new ones.,They are,identical,in sex and appearance,who are produced from the same,original,egg.,Questions about cloning,1.What is cloning?,Cloning is,a way of,making an,exact copy,of another animal or plant.,They include natural and man-made clones.,C,lone?,Natural clone,Man-made,clone,Natural clone is one that occurs from the“parent”in a natural form of cloning without human help.,Man-made clone,is one produced,through human intervention,(,介入,).,In pairs,look at these pictures and discuss which ones are natural clones and which ones are man-made.Explain how they differ.,Warming up,natural clones,natural,clones,cloned animals,NO.The first two are man-made clones,the rest two are natural clones.,Cloning:,where is it leading us?,Reading,Fast-reading,Task 1 Read the letter,then try to find the main idea of each paragraph.,1.Cloning is _,2.Cloning has _ uses.,3.The _ of Dolly.,4.The _ of Dolly.,5.It is _ to clone human beings.,a way of making an exact copy of another animal and plant.,problems,two major,effect,forbidden,1.The main idea of the text is_,A.animal cloning is very valuable and can benefit the world.,B.animal cloning could be misused by bad people so it must be forbidden,C.animal cloning is well developed because Dolly the sheep was born.,D.animal cloning raised arguments and scientists are not sure about its future.,Choose the right answer according to the text.,2.,It can be inferred from the passage that a cloned animal_.,A.usually lives as long as the original one B.usually lives longer than the original one C.usually lives shorter than the original one D.is usually as healthy as the original one,3.Which statement is NOT true?,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 is much more difficult than plant cloning.,4.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 mammals failed,5.The sheep that donated the somatic cell most probably lived _ years.A.3 B.6 C.9 D.12,How is a clone,produced?,True 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 sheep A.,T,F,T,F,Advantages of cloning,Medical cloning could produce cures for serious illnesses in humans.,2.Cloning plants can produce plants of similar quality for sale.,3.Cloning plants can be useful for research on new plant species.,4.Cloning can help save endangered,animals,.,Problems or dangers of cloning,1.Animal clones may develop the illnesses of older animals.,2.,Animal clones may die,younger than the donor animals.,3.Evil leaders may want to clone themselves.,4.,There are moral objections to,cloning human beings.,1.What is the writing style?,Expositive,（说明性的）,Descriptive,C.Argumentative,（议论性的）,D.Narrative,2.The writers reaction towards,cloning is_,A.Positive B.Negative,C.neutral,Challenge yourself,Consolidation,Clone is a way of making an exact_ of another animal or plant.Cloning have two _ uses.Firstly,gardeners use it all the time to produce _quantities.Secondly,it is valuable for research on new plant _and for medical research on animals.But through,the _and death of Dolly,cloning has a lot of problems.On the other hand,we know cloning is controversial in some countries for _and _reasons.,copy,major,commercial,species,birth,moral,religious,Cloning people is a good thing,or a bad thing?,克隆人是福音,还是恶兆？,Thinking,Oh!My God!I was cloned!,As a coin has two sides,everything has two aspects.,On the one hand,if the cloning is used in a correct way it can bring many conveniences to us.Such,as:curing serious illnesses and being used to produce commercial qualities of plants.On the other hand,if the cloning is used in an evil way it can cause much troubles:such as moral questions.,