1、ReadingNatural clone is one that occurs in a natural form of cloning without human help.Man-made clone is one that 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.DiscussionA strawbe
2、rry plantGrowing new plantsTwinsDolly the sheepShe was cloned while the others were born naturally.Dolly was a _ sheep.clonedHow does Dolly differ from other sheep?ReadingListen to the tape and find out the main idea of each paragraph.Cloning is a way of making an exact copy of another animal and pl
3、ant.What is cloning?It happens both in _ and in_.They can be cloned by _ and _.plantsanimalsthemselveshumansNatural 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 21996Th
4、e major uses and procedures of cloningAt 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 3The
5、problems of Dollynormallyencouragingorginalthatas long as/shorter than/longer thandisturbingshorter thanThe word“controversial”in para 4 probably means _.A.complicated B.arguable C.importantPara 4The impact of DollyTrue or false:1 People feared that Cloned Hitlers would do harm to the world.2 All th
6、e research into human beings will be forbidden.3 Some countries will use cloning in a wise way.Para 5 Peoples reaction to cloningMany 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
7、in favor of it)The writers attitudetowards cloningBecause_1.Dolly the sheep_.A.looked exactly like the sheep that provides the egg.B.was the exact copy of the sheep that provides the nucleus.C.looked like the sheep that gave birth to it.D.had the characteristics of all three sheep.2.It can be inferr
8、ed 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 longer than the original one D.is usually as healthy as the original one3.Which of the following is not an advantage of cloning?A.Cloning can be used for
9、 medical purposes.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.We can use the skill of cloning to _.A.bring about global peace B.create other famous scientists C.improve the developme
10、nt of learning language D.cure some special diseases 5.What are people cloning now?_A.They are cloning trees,crops as well as animalsB.They are cloning books and machinesC.They are cloning humans and animalsD.They are cloning plants and scienceHomework1.Translate the procedure of cloning Dolly the sheep into Chinese.2.Finish Ex.1,2,3,Page12.
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