《WelcometotheuniM5U2t云溪区一中周灿辉》由会员分享，可在线阅读，更多相关《WelcometotheuniM5U2t云溪区一中周灿辉（23页珍藏版）》请在金锄头文库上搜索。
1、By Zhou Canhui Yunxi No.1 Middle SchoolWelcome to the unitThe advanced technique in genetics(遗遗传学传学) with which scientists can createor copy things with the same DNA is called ?cloneScientific definitionScientific definitionCloning is the creation of cells or whole animals by using DNA(脱氧核糖核酸脱氧核糖核酸)
2、 from a single “parent”, bypassing(绕道而行绕道而行) the normal reproductive(生殖生殖) process. The clone has the same DNA to the “parent”.Dolly and its creatorWhat do you know about Dolly?the worlds first cloned mammalcreated by Scottish scientists in 1996died in 2003 because of lung diseasemany countries have
3、 banned human cloning since Dollys birththe cloned kittenThe kitten in the picture is called Cc. Its name is from “Copycat”. Scientists in the USA created it with a cell taken from its mother, Rainbow. It was born in December 2002.the cloned female pigs The five little pigs names are Noel, Angel, St
4、ar, Joy and Mary.the first cloned monkeyThe name of the cloned monkey is ANDi. It is from “inserted DNA” spelt backwards. It is the first genetically modified monkey. The technology is different from that used for Dolly.Do you think the cloned animals are as healthy as the natural ones?Dolly is, but
5、 scientists do not yet know whether this is the exception (例外例外) or the rule. Some early evidences suggest that clones may have health problems and that they may age prematurely(早衰的，未老先衰早衰的，未老先衰).If you are a scientist, what do you want to clone? Why? What do you think of the new kind of technology?
6、 Does it have advantages or disadvantages?Do you think governments should pass laws to prohibit human cloning? Why or why not?They shouldnt, forreasons:1.cloning can help cure many 2. diseases and save a lot of 3. people lives. 4.2. 5.3. Part AThey should, forreasons:1.cloning can lead to 2. ethical
7、(伦理伦理) problems.3.2. 4.3. Part BGiving an oral reportToday our class had a discussion about whether the governments should pass laws to prohibit human cloning.Some students think that the governments should, forHowever, some other students thinkit necessary to prohibit, forIn my opinion, Thank you for your attention!1.Find more information about clone.2.2. Review the new words.
