高二英語人教版選修8 unit2 Cloning Reading 課件

1、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 intervention(介入，

2、干預介入，干預).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 cattle2002 cloning cats2005 cloning dogsReadingSkimming_Cloning has two major uses and successful clone._(definition) Cloning is a way of mak

3、ing an exact copy of another animal and plant _The effect of Dolly._Peoples reaction to cloning human beings._The problems of Dolly.21453Third reading -True or“ False 1. Cloning means making a child of another animal or plant. 2. Gardeners can make a lot of money by cloning plants. 3. Cloning animal

4、s is as complicated as cloning plants. FTF4. Dolly the sheep was the first successful clone of a mammal. 5. Natural clones happen in animals as well as in plants.TTCloning is a way of making an exact copy of another animal and plant.What is cloning ?It happens both in _ and in_. It has two kinds:pla

5、ntsanimalsNatural cloneMan-made clonePara 1 The definition of cloning1.How many major uses do cloning have? Firstly, commercial Secondly, research2. When was the cloning of Dolly the sheep born?Para 21996The major uses and procedures of cloningAt first, the fact that Dolly developed _ in a natural w

6、ay 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 3The problems of Dollynormallyencouragingorginalthatas long as / shorter than / longer thandist

7、urbingshorter thanThe word “controversial” in para 4 probably means _. A. complicated B. arguable C. importantPara 4The impact of DollyTrue or false:1 People feared that cloning evil leaders would do harm to the world.2 All the research into human beings will be forbidden.3 Some countries will use c

8、loning in a wise way.Para 5Peoples reaction to cloningHuman beings.Many governments forbade reserch into human beings. the author does not state any personal opinion about cloning. A. Objective (be fair) B. Negative (be against it) C. Positive (be in favor of it)The writers attitude towards cloningB

9、ecause_Challenge yourself1. In the second paragraph, the word “straightforward” means _. A. uncomplicated B. honest C. frank D. difficultA. Expositive （說明性的）（說明性的） B. Descriptive (描述性的）描述性的）C. Argumentative （議論性的）（議論性的） D. Narrative （敘述性的）（敘述性的） Problems /dangers of cloningAdvantages of cloningAnima

10、l 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 similar quality for sale.Evil leaders may want to clone themselves.Cloning pl

11、ants 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 Cloning a SheepConsolidation Clone is a way of making an exact_ of another animal or pla

12、nt. 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. copymajorcommercialspe