1、UNIT 9 HUMAN BIOLOGYLESSON 1 TO CLONE OR NOT TO CLONE目录页contentsPre-readingIPost-readingIVFast ReadingIILanguage and Grammar VIIIIntensive Reading HomeworkPre-readingCloning can create identical genes.Cloning can be used to edit genes.Cloning can make an exact copy of an animal.Scientists have broke
2、n lots of technical barriers when studying cloning.Weve cloned several species,like sheep,cattle and dogs.Scientists want to produce animal models that are helpful for medical research.Pre-readingWhat do you know about cloning?What additional information would you like to know?When was the first clo
3、ned animal created?Why are scientists so interested in cloning?What achievements have we made in cloning?What problems are we facing now?Pre-reading Fast Readingdefinition&natural cloning artificial cloning:cloned mammalsartificial cloning:cloned primatesthe significance of cloning of primatesmoral
4、concernsconclusionFast Reading:Match the headings with the paragraphsPara 1Para 2Para 3Para 4Para 5Para 6 Intensive ReadingIntensive ReadingTo clone or not to clonedefinitionnatural cloningPara 1artificial cloningPara 2-4cloned mammalsPara 2cloned primatesPara 3the significance of cloning of primate
5、sPara 4Draw a structural map to show how the paragraphs are organised.Intensive ReadingTo clone or not to clonemoral concernsPara 5conclusionPara 6Draw a structural map to show how the paragraphs are organised.Read the first four paragraphs to answer the following questions.1.What was the first clon
6、ed mammal?What happened to her?2.How has the science of cloning developed since the first cloned mammal?3.What development in cloning was announced in 2018?What was special about it?4.For how long did Dr.Sun Qiangs team work?Why did they work so hard?5.Why was it significant to clone primates?Intens
7、ive Reading1.What was the first cloned mammal?What happened to her?It was a sheep named Dolly in 1996.At first,Dolly grew normally.But later she developed an illness that is more normally found in much older animals.She lived for six and a half years,only half the life of the sheep from which she wa
8、s cloned.Intensive Reading2.How has the science of cloning developed since the first cloned mammal?After Dolly,scientists have cloned more than 20 mammal species,including camels,cattle,deer,dogs,goats,and mice.Intensive Reading3.What development in cloning was announced in 2018?What was special abo
9、ut it?In January 2018,Chinese scientists announced the cloning of two long-tailed monkeys,Zhong Zhong and Hua Hua.They were the first-ever primates to have been cloned!Cloning primates is much harder and doing so with non-reproductive cells was even more complicated.Intensive ReadingZhong Zhong and
10、Hua HuaIntensive Reading4.For how long did Dr.Sun Qiangs team work?Why did they work so hard?They worked 24 hours a day,7 days a week for more than 5 years.They wanted to get animals with edited genes and produce animal models that are helpful for medical research and human health.Intensive ReadingD
11、r.Sun Qiang and one of his team membersIntensive Reading5.Why was it significant to clone primates?It might lead to cures for various diseases.It may offer clues on how to prevent the aging process.It allows us to have the potential to raise a large number of monkeys with identical genes in a short
12、amount of time.It may allow us to change their genes to suit research needs.It could help save research time.It could reduce the number of animals required for testing.It could produce more accurate results.It could lead to more effective treatments.Intensive ReadingPotential benefits will lead to c
13、ures for various diseasesIntensive ReadingRead paragraphs 5 and 6.Finish the columns.prevent aging,save research time,reduce the number of animals being tested on,producing more accurate results,better treatmentsMoral concerns has refreshed the technical possibility of cloning of other speciesIntens
14、ive Readingclones should be treated as objects or individuals,clones are inferior,some organisations may abuse the technologyRead paragraphs 5 and 6.Finish the columns.What does Einsteins quote mean?“Science is a powerful instrument.How it is used,whether it is a blessing or a curse to mankind,depen
15、ds on mankind and not on the instrument.A knife is useful,but it can also kill.”Intensive ReadingScience itself cannot be judged as good or bad,becauseit can only function when it is used by humans.Humans need to be careful with the information they learn through science and to remember to use scien
16、ce for good.Post-reading Natural cloning has taken place for generations.An example of this is identical 1 _.A sheep called Dolly was the first mammal to be cloned 2 _.Since Dolly,more than 20 mammal 3 _ have been cloned including camels and goats.In 2018,China announced that two monkeys had been cl
17、oned.In comparison with other species,scientists have had to work hard to break the technical 4 _ to get primates with 5 _ genes.twinsartificiallyspeciesbarrierseditedComplete the summary using the information in the article.Post-readingScientists say that this major breakthrough offers the 6 _ to c
18、reate monkeys with 7 _ genes to give more 8 _ research results and perhaps lead to 9 _ for various diseases.Whilst scientists insist it is 10 _ to continue research,others raise 11 _ concerns and worry that the technology might be 12 _ by some organisations.potentialidenticalaccuratecurescrucialmora
19、labusedPost-reading1.Why do researchers insist that the science of cloning should be further explored and advanced?Post-reading:Think and shareResearchers insist on exploring cloning to continue making progress in curing diseases and developing treatments.2.What is the writers attitude towards cloni
20、ng?Find evidence.Post-reading:Think and shareThe writer feels that cloning can be a helpful tool in medical research but that it can also become dangerous.Evidence of this is in the writers use of Einsteins quote.VIHomeworkSearch online and find more information about the development of cloning.Homework
