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1、cloning,Unit2 Reading,How much do you know about cloning?,Quiz:,Cloning is a way of making an exact copy of another animal or plant. It can be divided into natural clone and man-made clone. A natural clone is one that occurs in nature and a man-made clone is one that is procured through human interv
2、ention(介入，干预).,Whats clone?,Are the following clones the same? If not, what is the difference?,NO. The first two are man-made clones, the rest two are natural clones.,2001 cloning cattle,2002 cloning cats,2005 cloning dogs,Cloning: Where is it Leading us?,Reading,Skimming,_Cloning has two major uses
3、 and successful clone. _(definition) Cloning is a way of making an exact copy of another animal and plant _The effect of Dolly. _Peoples reaction to cloning human beings. _The problems of Dolly.,2,1,4,5,3,Third reading -“True“ or“ False“ 1. Cloning means making a child of another animal or plant. 2.
4、 Gardeners can make a lot of money by cloning plants. 3. Cloning animals is as complicated as cloning plants.,F,T,F,4. Dolly the sheep was the first successful clone of a mammal. 5. Natural clones happen in animals as well as in plants.,T,T,Cloning is a way of making an exact copy of another animal
5、and plant.,What is cloning ?,It happens both in _ and in_. It has two kinds:,plants,animals,Natural clone,Man-made clone,Para 1,The definition of cloning,1.How many major uses do cloning have? Firstly, commercial Secondly, research 2. When was the cloning of Dolly the sheep born?,Para 2,1996,The maj
6、or uses and procedures of cloning,At first, the fact that Dolly developed _ in a natural way was _. Later, the news _she lived for six years, half the length of the life of the _ one was _. Finally, the problem that occurred to the scientists was that a cloned animal lives _ the original one.,Para 3
7、,The problems of Dolly,normally,encouraging,orginal,that,as long as / shorter than / longer than,disturbing,shorter than,The word “controversial” in para 4 probably means _. A. complicated B. arguable C. important,Para 4,The impact of Dolly,True or false: 1 People feared that cloning evil leaders wo
8、uld do harm to the world. 2 All the research into human beings will be forbidden. 3 Some countries will use cloning in a wise way.,Para 5,Peoples reaction to cloning Human beings.,Many governments forbade reserch into human beings.,the author does not state any personal opinion about cloning.,A. Obj
9、ective (be fair) B. Negative (be against it) C. Positive (be in favor of it),The writers attitude towards cloning,Because_,Challenge yourself,1. In the second paragraph, the word “straightforward” means _. A. uncomplicated B. honest C. frank D. difficult,2.What is the writing style? Expositive （说明性的
10、） B. Descriptive (描述性的） C. Argumentative （议论性的） D. Narrative （叙述性的）,Animal clones may develop the illnesses of older animals.,Medical cloning could produce cures for serious degenerative illnesses in humans.,Animal clones may die younger than the donor animals.,Cloning plants can produce plants of s
11、imilar quality for sale.,Evil leaders may want to clone themselves.,Cloning plants can be useful for research on new plant species.,There are moral objections to cloning human beings.,Cloning can help save endangered animals.,Fill in the chart using the information from the text.,Procedure of Clonin
12、g a Sheep,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,
13、 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,Homework Read the passage again and find out all the noun clauses in the text. Write a short passage according to the following topic. Should human cloning be allowed?,
