1、Unit 2 Cloning,Dolly the sheep and its baby,The following statements are about cloning and decide T or F,1.Cloning means making a copy of ananimal or a plant. 2.Gardeners can make a lot of moneyby cloning plants 3.Cloning animals is as complicatedas cloning plants. 4.Dolly the sheep was the first su
2、ccessful clone of a mammal. 5.Natural clones happen in animals well as in plants.,F,F,T,T,T,Quiz:,Main ideas of the five paragraphs?,Para 1: Whats cloning? ( It is a way of makingan exact copy of another animal and plant,Para 2: Cloning has two major uses.,Para 3: The problems of Dolly.,Para 4 :The
3、effect of Dolly.,Para 5 :It is forbidden to clone human being.,Reading comprehending,1.Dolly the sheep_ A.Looked exactly like the sheep that provides the egg. B.Was the exact copy of the sheep thatprovides the nucleus. C.Looked like the sheep that gave birth to it . D.Had the characteristics of all
4、three sheep.,Reading:,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 dies earlier than the originalone. D.Is usually as healthy as the originalone.,3.Which of the following is not an adv
5、antage of cloning? A. Cloning can be used for medical purpose. B. Large quantities of food can be produced by cloning. C. Cloning can help keep animals from becoming extinct. D. Famous persons who have passed away can be cloned.,4.Whats people fear about human cloning ? Which one is wrong? A.Cloned
6、Hitlers would do harm to the world. B.Cloned people may be killed at will for medical aid. C.A woman would have difficulty recognizing her real husband. D.Men will die out because a woman can give birth to a baby without a husband.,Carefully Reading,Finish the exercises on P12,Problems or dangers of
7、 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.,Advantages of cloning,Medical cloning could produce cures for serious il
8、lnesses 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.,Q2； the writers point of view on cloning,I think the writer is impartial because he/she doesnt state an
9、y personal opinion on cloning.,Samples of Q3:,As a coin has two sides, everything has two aspects. First, 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.,Homework: What happens next?,
