精选高中课标8Unit2Reading公开课件.ppt-(课件无音视频)
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1、Reading Where is it leading us?Where is it leading us?Book 8 unit 2Look at the following pictures and answer the questions:1.Its the most famous sheep in the world.Do you know how Dolly is different from other sheep?She was cloned while the others were born naturally.It is the copy of another sheep.
2、2.What is cloning?Cloning is a way of making an exact copy of another animal or plant.3.Are the following clones the same?If not,what is the difference?NO.The first three are man-made clones,the rest two are natural clones._.Cloning has two major uses and the procedure of cloning._.The definition of
3、 cloning_.The impact of Dolly._.The attitudes towards cloning_.The problems of Dolly.12345 Fast-readingSkim the passage and match the main idea of each paragraph.2.Whats the writing style?Expositive(说明性的)B.Argumentative(议论性的)C.Narrative(叙事性的)D.Descriptive(描写性的)1.The main idea of the text is_ A.anima
4、l 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.Cloning happens both in _ an
5、d 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?The major uses and procedures of cloning1996Para 23.The
6、word“straightforward”means _.uncomplicated honest frank Difficult4.Do you know about:the procedure works of a sheep?How to produce a sheepthe clone of sheep Ban egg cellnucleusegg cellthe somatic cellnucleus joined cellan embryothe carrier of the clone5.True of false:Four female sheep participate in
7、 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.TFTF At first,the fact that Dolly seemed to developed _ was _.Then,came the news that Dolly became_.Altogether Dolly lived_,half the length of the li
8、fe of _.Para 3The problems of Dollynormallyencouragingthe original sheepseriously illsix and a half yearsThe sheep that donated the somatic cell most probably lived _years.A.3 B.6 C.9 D.13Problems:Cloned animals may develop the_of older animals.Cloned animals may lives _ the original one.as long as/
9、shorter than/longer thanillnessesshorter than The word“controversial”in Para 4 probably means:_.A.complicated B.arguable C.important D.traditionalPara 4The impact of DollyIts appearance raised and the media and public imagination.a storm of objectionshad a great impact onTrue or false:1 People feare
10、d that Cloned Hitlers would do harm to the world.2 All the research into human beings will be forbidden.3 Some countries continue to accumulate evidence of the abundant medical aid that cloning could provide.Para 5 Peoples reaction to cloningMany governments forbade research into human cloning.T F T
11、 We can conclude _ Cloning is good for us.Cloning has two aspects.If cloning is used in a correct way it can bring many convenience to us.If cloning is used in an evil way it can cause much trouble.We should use cloning in a wise way!DISCUSSION Choose one of the following questions to discuss in gro
12、ups.The leader of each group should write down every members opinion,then the volunteers will show your group work to the whole class:1,Is cloning good for us?2,What benefits can humans gain from cloning?3,What problems may arise when humans are cloned?4,Is cloning bad for us?These expressions may h
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