英语选修8人教新课标UNIT 2同步课件：阅读（28张）.ppt

1、选修8 Unit 2CloningLook at the pictures and discuss which ones arenatural clones and which ones are man-made clones.She was reported on TV and major papersCloning,where are you leading us?.1.What is cloning?It is a way of making an exact copy of another animal or plant.First reading2.Whats the style o

2、f the passage?A.narrative(记叙文)B.argumentative(议论文)C.explanatory(说明文)3.Can you put the topic sentences into paragraphs that they belong to?(Attention:one of them belongs to nowhere.)Dollys problem and death What is cloning?Two major uses of cloning The effect of Dolly The procedure for human cloning

3、Arguments brought by DollyPara 1 Para 2Para 3 Para4 Para5What is cloning?Two major uses of cloning Dollys problem and death The effect of Dolly Arguments brought by DollyThe procedure for human cloningSecond reading 1.What are the two major uses of cloning?The first use is to produce commercial quan

4、tities of plants;the second one is to research on new plant species and medical research on animals.2.Is cloning plants the same with cloning animals?A.Yes,they are the same with each other.B.No,cloning plants is straightforward but cloning animals is more complicated.3.Give a right order of cloning

5、 Dolly s procedure The cell divides and grows into an embryo.The lamb is the clone of the donated cell from Sheep B.A nucleus is taken out of Sheep Bs somatic cell.The embryo is put into female Sheep C.The egg cell from Sheep A and the nucleus from Sheep B are joined using electricity.The egg cell f

6、rom Sheep A is removed a nucleus.The order:_ _ _ _ _ _1.True or False questions.Dolly the sheep was the first successful clone of a mammal.Some countries like China didnt stop human cloning research.a cloned animal usually dies earlier than the original one.Evil leaders can clone themselves to abtai

7、n their ambitions.TFTFThird reading2.What is the writers attitude toward cloning in this passage?A.The writer is against cloning.B.The writer is in favor of cloning.C.The writer does not state any personal opinion about cloning.3.Whats the affect of cloning?On the one hand,it opened everybodys eyes

8、to the _of using cloning to cure_and even produce _;On the other hand,Its appearance raised a storm of _and had a great impact on the _ and public_.serious illnessespossibilityhuman beingsobjectionsmediaimagination4.What are the advantages and disadvantages of cloning?1.Cloning plants can produce _

9、_ of plants.2.Cloning plants can be useful for research on new _ species.3.Medical cloning could produce _ for serious illnesses.advantages commercialquantitiescuresplantdisadvantages1.Animal clones may develop the _ of older animals.2.Animal clones may _younger than the donor animals.3.Evil leaders

10、 may want to _ themselves to attain their ambitions.4.Religious leaders raised _ questions about human cloning.illnessesdieclonemoralAs one coin has two sides,everything has _ aspects(方面).Cloning has both _and _ aspects._,if cloning is used in a correct way,it can bring lots of convenience to us._,i

11、f cloning is used in an evil way,it can cause much trouble._,we should use cloning in a correct way.twogoodbadOn the one handOn the other handTherefore5.What can we learn from the passage?DiscussionLets make a discussion about whether cloning should be allowed in China?Give your reasons.Possible sen

12、tence patterns:(1)Peoples views vary from person to person.(2)hold the view that./in favor of(3)object to the view that/are against(4)I cant agree with becauseConsolidation The passage mainly tells us what c_ is,the a_ raised by Dolly the sheep and scientists are not sure about its f_.loningrgumentsutureOne coin has two sides and we should treat things in a wise way.教师寄语Write a short passage about what you discussed in class.