《Unit 3 Science versus nature-- Welcome to the unit》教学课例
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| 名称 | 《Unit 3 Science versus nature-- Welcome to the unit》教学课例 |  | |
| 格式 | zip | ||
| 文件大小 | 1.6MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 牛津译林版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2014-08-12 22:58:33 | ||
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课件22张PPT。
Welcome to the unit
The advanced technique in genetics(遗传学) with which scientists can create or copy things with the same DNA is called -?cloneCloning is the creation of cells or whole animals by using DNA(脱氧核糖核酸) from a single "parent", bypassing (绕道而行) the normal reproductive (生殖) process. The clone has the same DNA to the “parent”.
Scientific definitionDolly and its creatorcloned female pigs cloned calves from Japanthe first cloned monkeycloned chickenthe cloned deerDo you think the cloned animals are as healthy as the natural ones?Dolly is, but scientists do not yet know whether this is the exception(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).
If you are a scientist, what do you want
to clone?Why? BrainstormingMore contributions to humanMore world championsChina, a more harmonious communityJust imagine Supposing you are facing your second self who looks like you, talks like you and thinks
like you, how do you feel?Try to describe Bush’s feelings.If cloning goes wrong, what will happen?Fun picturesA dog or a man?Discussion Do you think governments should
pass laws to prohibit human cloning?
Why or why not?Part AThey shouldn’t, for…reasons:Cloning can help cure many diseases and save a lot of people lives.
2. ……
3. ……Part BThey should, for…reasons:Cloning can lead to
ethical(伦理) problems.
2. ……
3. …… 1. Try to remember the information as
possible as we learned.
2. Preview the next part: Reading.
Welcome to the unit
The advanced technique in genetics(遗传学) with which scientists can create or copy things with the same DNA is called -?cloneCloning is the creation of cells or whole animals by using DNA(脱氧核糖核酸) from a single "parent", bypassing (绕道而行) the normal reproductive (生殖) process. The clone has the same DNA to the “parent”.
Scientific definitionDolly and its creatorcloned female pigs cloned calves from Japanthe first cloned monkeycloned chickenthe cloned deerDo you think the cloned animals are as healthy as the natural ones?Dolly is, but scientists do not yet know whether this is the exception(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).
If you are a scientist, what do you want
to clone?Why? BrainstormingMore contributions to humanMore world championsChina, a more harmonious communityJust imagine Supposing you are facing your second self who looks like you, talks like you and thinks
like you, how do you feel?Try to describe Bush’s feelings.If cloning goes wrong, what will happen?Fun picturesA dog or a man?Discussion Do you think governments should
pass laws to prohibit human cloning?
Why or why not?Part AThey shouldn’t, for…reasons:Cloning can help cure many diseases and save a lot of people lives.
2. ……
3. ……Part BThey should, for…reasons:Cloning can lead to
ethical(伦理) problems.
2. ……
3. …… 1. Try to remember the information as
possible as we learned.
2. Preview the next part: Reading.