1、Unit3 Science versus natureWelcome to the unitLead-inScience is developing so fast that sometimes it is beyond our imagination.Man has created many things such as Radios,TV sets and so on.What else has been created by man?Could you give us some examples?Dolly the worlds first cloned adult animal.The
2、 scientists who cloned Dolly are to stop experiments involving genetically modifying pigs for human organ transplants because of concerns that deadly new diseases could be passed on to people.Picture-talkThe worlds first cloned mule,was born on May 4.He is created from a cell of his brother.kitten R
3、ainbow The worlds first cloned cat,kitten,namedCc.It was created using a cell taken from an adult cat,Rainbow.The worlds first cloned pigs were produced from an adult female pig using a different techniquefrom the one that produced Dolly.Five cloned pigsA pair of new-born cloned calvesThey are the s
4、econd adult-animal clones research centre said the new technique would be used to breed better cattle strains with higher-quality beef or greater milk capacity.The first cloned monkey is another incremental step toward designing and perfecting new treatments for human genetic disorders.From these pi
5、ctures,can you identifythe differences between the cloned animals and normal ones?The first cloned mammalDolly Dolly and Ian WilmutcloneBrainstorming gene geneticgenetically cell embryoorgansheepmammaltissuestem cellbiology DiscussionsIn your opinion,what might be the differences between these clone
6、d animals and normal ones?Can these cloned animals lead a normal life as normal animals?For example,does the mule in Picture 2 run as fast as his brother?Do you think it would be a good ideato clone humans some day?Why or why not?Lead-inGaur is a kind of endangered Asian ox.Noah,a gaur,was the first
7、 clone of an endangered animal born on 8 January 2001.Scientists at Advanced Cell Technology succeeded in cloning the baby gaur.Unfortunately,Noah died two days later.The experiment proved that it was possible to save endangered species through cloning.Skimming and ScanningRead the article and lette
8、rs quickly and answer these questions.1.Does the article give an anti or pro-cloning point of view,or both?2.What was the name of the first cloned animal?3.Is Pauline Carter pro-or anti-cloning?BothDollyAnti-cloning1.What is cloning?2.How many scientists are mentioned in this text?Who wants to clone
9、 a human being?Speed-reading Cloning is producing an exact copy of a plant or an animal using its cells.True or False1.People all over the world are happy about the idea of cloning human beings.2.Dolly,the first cloned mammal,is exactly the same as other sheep.3.According to the article,the scientis
10、t who created Dolly does not agree with cloning human beings.FNot all peopleFTNot exactly4.Cloning can be used to cure diseases because it can produce new tissues and organs.5.Colin Jake is against cloning humans,just like Pauline Carter.6.Cloning human beings is illegal in many countries,so no scie
11、ntists want to clone human beings.TFNot likeFA few scientistsFill in the formPro-cloningAnti-cloning1.Produce valuable tissuesand organs that could be used to save human lives2.Cure diseases like cancer3.Help those who are unable to have children4.Help those who want to clone their dead children1.Ma
12、y produce a real-life Frankensteins monster2.Create more disease in the animal world3.Cloning shows norespect for humans4.Human life would no longer be unique5.Having fewer babiesto reduce population,not cloning moreMore questions1.What are the different attitudes towards the success of cloning a hu
13、man cell?2.What does Ian Wilmut,the Scottish scientist who created Dolly,intend to use cloning for?3.Who are the three persons in the article related to cloning?1.What are the different attitudes towards the success of cloning a humancell?Valuable tissues and organs can be produced and be used to sa
14、ve humanlives.Human beings may be on the way toproducing a real-life monster.Some people consider cloning humanembryos with the intention to destroy them shows no respect for human life.2.What does Iran Wilmut,the Scottish scientist who created Dolly,intend to use cloning for?He thinks research effo
15、rts should be concentrated on creating new tissues and organs that could eventually be used tocure diseases like cancer.3.Who are the three persons in the article related to cloning?Ian Wilmut,a Scottish scientist who created Dolly and was shocked when hearing some scientists were considering clonin
16、g human beings.He never intends to create copy of humans.Instead,he thinks the efforts of scientists should be directed towards creating new cells and organs that could eventually be used to cure diseases like cancer.Faye Wilson,a woman of 41 years old who cannot have a baby.She is desperate to have
17、 a baby of his own,achild that is genetically related to her.Severino Antinori,an Italian doctor,who is one of the leaders in the cloningresearch.He has declared that he wantsto be the first to clone a human being.Reading comprehension:1.The announcement of successful human embryo cloning has caused
18、 much debate because_.A.people still have no clear idea about the results of human cloningB.valuable tissues and organs can be used to save humans C.mankind is going to produce terrible monstersD.people know that nature will punish mankind for human cloningAReading strategy:Understanding scientific
19、terms1.Read the first and last paragraphs for an idea of what the article is about.2.Scan the body of the article.Circle the words you dont know.3.Read through the article a few times.2.The success of the cloned sheep Dolly has proved that_.A.cloning will create more diseases in animal worldB.cloned
20、 animals will die at a much younger age than normalC.man has been able to produce an exact copy from an adult cellD.man can interfere with nature at his willC3.According to the passage,what is the real intention of Ian Wilmuts cloning research?A.To create copies of humans in the end.B.To destroy hum
21、an embryos in the end.C.To create new tissues or organs for sale.D.To cure deadly diseases eventually.D4.How does a woman who cannot give a birth benefit from cloning?A.She can have a baby by using another womans egg.B.She can have a baby genetically related to her.C.She can adopt someone elses chil
22、d by cloning.D.She can have more children.B5.What can we infer from the whole passage?A.Cloning animals is illegal in Italy.B.Chinese scientists are trying to benefit mankind by using cloning technology.C.Chinese scientists want to be the first to clone a human baby.D.Colin Jake disagrees with the s
23、cientists who want to clone a human baby.BRead the text and find out the main idea of each paragraph.Para 1Para 2 Para 3An announcement about the first cloned human embryo caused much debate.The first cloned mammal was Dolly.Ian Wilmut is shocked that some scientists are considering cloning human be
24、ings.Para 4Para 5Para 6A woman wants to have a cloned baby.Cloning human embryos is illegal in many countries,but some scientists still want to clone human beings.Chinese scientists continue to research ways in which cloning can benefit mankind.Part D.ECheck the answersD 1 b 2 a 3 d 4 e 5 c 6 g 7 h
25、8 fE 1 cloning 2 cell 3 successfully 4 immoral 5 right 6 consequences 7 younger 8 humans 9 laws 10 Italian Post-reading Discussion1.If human cloning was successful,who would be happy apart from the parents?2.Do you think it would be easy for the cloned baby to accept his or her social identity as a
26、cloned human being?3.What would the cloned baby call the original cell owner,mother/father or sister/brother?What would the person that had the original cell feel about the cloned baby?Ex.reading p110-1111.He kept silent after the judge announced that he was the winner of the competition,which shock
27、ed everyone present.2.He decided to go abroad for further education with the intention og improving his English and finding a better job when he returns.3.Scientists pointed out that if we go on polluting the earth,it will not be fit for us to live on.4.Just a minute.The food you ordered is on the w
28、ay.5.It will take many years to bring the situation in Si Chuang back to normal.6.I decided to concentrate all my efforts on preparing for the college entrance examination.7.He has nothing for three days and now he is desperate for a piece of bread.8.The kind couple adopted the orphan,whose parents
29、death was related to the serious accident.9.The students are in desperate need of the books,which must be delivered to the school this week.10.Tom found it hard to focus his attention on homework,for he had just borrowed a novel he was desperate to read from the bookstore.11.He didnt work hard,as a
30、consequence,he ended up failing in the examination,which made his parents disappointed.12.The government should be cautious in its response to the report.13.Nowadays,the majority of people cant afford to buy an apartment because the cost is too high.14.Many years ago,Franklin conducted an experiment on electricity,using a kite.15.The report urged that all the children should be taught how to escape in a disaster.
