Unit3Scienceandnature經(jīng)典實用

1、unit 3 science and natureunit 3 science and naturewelcome to the unitunit 3 science and nature can you think of some cases in which science goes against nature?gm foodbrainstorming:unit 3 science and natureair conditionerunit 3 science and natureorgan tranplantunit 3 science and natureartificial rai

2、nfallunit 3 science and naturecloningunit 3 science and natureunit 3 science and naturecosmetic surgeryunit 3 science and naturewhat is cloning?unit 3 science and naturethe advanced technique in genetics(遺遺傳學傳學) with which scientists can createor copy things with the same dna is called -?cloneunit 3

3、 science and naturedolly the sheepunit 3 science and naturetrue or false? dolly is the worlds first cloned mammal. it looks different from a normal sheep. it has the same gene as the first sheep. it is legal to clone human beings. dolly is the only animal in the world that has been successfully clon

4、ed.unit 3 science and naturescientific definitioncloning is the creation of cells or whole animals by using dna(脫氧核糖核酸脫氧核糖核酸) from a single parent, bypassing(繞道而行繞道而行) the normal reproductive(生殖生殖) process. the clone has the same dna to the “parent”.unit 3 science and naturethe cloned kittenunit 3 s

5、cience and naturethe 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.unit 3 science and naturethe cloned female pigs unit 3 science and nature the five little pigs names are noel

6、, angel, star, joy and mary.unit 3 science and naturethe first cloned monkeyunit 3 science and naturethe 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.unit 3 science and

7、natureare cloned animals exactly the same as the “mother animals”？ they may have the same appearance but their physical qualities can be very different. many cloned animals died at a much younger age than average. unit 3 science and naturetask 1: is it a good idea to clone humans some day? if you ha

8、ppen to have a cloned cat, how would you feel? unit 3 science and nature what if another cat with the same appearance comes to you?unit 3 science and nature what if more cats with the same appearance come to you? unit 3 science and naturewhat about a cloned “you”?girls vs. boysdiscussion1unit 3 scie

9、nce and naturefun picturesif cloning goes wrong, what will happen?a dog or an eagle?unit 3 science and naturea duck or a crocodile?unit 3 science and naturea cock or a dog?unit 3 science and naturea lion or a kangaroo?unit 3 science and naturea frog or a crocodile?unit 3 science and nature what do y

10、ou think of the new kind of technology? does it have advantages or disadvantages?unit 3 science and naturedo you think governments should pass laws to prohibit human cloning? why or why not?unit 3 science and naturethey shouldnt, forreasons: cloning can help cure many diseases and save a lot of peop

11、le lives. 2. 3. part aunit 3 science and naturethey should, forreasons cloning can lead to ethical(倫理倫理) problems. 2. 3. part bunit 3 science and naturegiving 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, unit 3 science and naturethank you for your attention!unit