人教版 英语选修8 unit2Cloning using language课件 （共23张PPT）
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| 名称 | 人教版 英语选修8 unit2Cloning using language课件 （共23张PPT） |  | |
| 格式 | zip | ||
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| 资源类型 | 教案 | ||
| 版本资源 | 人教版（新课程标准） | ||
| 科目 | 英语 | ||
| 更新时间 | 2019-05-23 17:33:40 | ||
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课件23张PPT。Using languageThe return of the dinosaurs ?The writer of the text_____
A. is excited by the possibility of cloning fierce and extinct animals
B. believes that extinct animals can be brought back to life by cloning
C. thinks it impossible or unsuitable to clone extinct animals like dinosaurs
D. dreams of dinosaurs returning to the earth主旨大意2. The film Jurassic Park is popular because _____.
A. people are interested in the subject
of cloning
B. all the actors are dinosaurs
C. it was directed by a scientist who
clones dinosaurs
D. it proves very interesting细枝末节A3. Which of the following is true? ____
Mice were cloned in 1981.
B. Dolly the sheep was the first cloned animal.
C. The name of the cloned cow is “Bison”
D. China was successful in cloning mammals.4. The reasons why a group of cloned animals all die of the same illness do NOT include____. A. they have the same arrangement of genes B. there isn’t enough diversity in the group for it to overcome illnesses
C. the illness is a new one
D. their arrangement of genes can not resist that new diseaseTrue or false. Scientists are still experimenting with cloning mammals because they think it can make money.
The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning.
If we can clone any extinct animals, we should let them live in a zoo.FFFThe popularity of the film Jurassic Park, in which a scientist clones several different kinds of extinct dinosaurs, proves how interested ordinary people are in the subject. 长句难句 电影《侏罗纪公园》的欢迎证实了普通人对这一话题是多么感兴趣,在该电影中一位科学家克隆了几种不同的恐龙。
in which引导定语从句, how引导宾语从句。 2. From time to time people suggest that the animals that have disappeared from the earth, like dinosaurs, can possibly be brought back to life through cloning. 人们时常设想从地球上消失的动物,例如恐龙,有可能通过克隆技术使它们复活。from time to time有时, 间或, 偶尔,
= occasionally, now and then。3. It is useless to clone an animal if there is not enough diversity in the group for it to overcome illnesses. 该群中如果没有足够的多样性使它克服疾病,克隆动物就没有用。当动词不定式、动名词或从句作主语时, 通常把它们放在谓语之后, 而用it作句子的形式主语。4. Diversity in a group means having animals with their genes arranged in different ways. 群中的多样性指的是拥有基因排列方式不同的动物。
with their genes arranged in different ways作定语, in different ways 以不同的方式。5. ...but others will survive and pass on the ability to resist that disease to their children.
......其他的将存活下来并传递给其后代抵抗这种病的能力。resist 作及物动词主要有三个义项:
抵抗, 对抗; 抵挡, 防止;
(与cannot, could not连用)
无法抗拒, 无法抵挡。base on/upon 以……为基础, 依据
其结构为: base sth. on/upon
sth. is based on/upon6. Based on what we know now, you can not clone animals that have been extinct longer than 10000 years. 据我们现在所知, 绝种一万年以上的动物不能克隆。 May the best animal win!
Which extinct animals are worth restoring by means of cloning? Choose one and use the information to help you argue why this animal should be restored to the earth.DiscussionGreat Auk (1844)Auroch (1627)Dodo bird (1755)Quagga (1883)A sample dialogue (P16)S1: I think the dodo bird should be returned to the earth. It hasn't been extinct very long. So its DNA will still be good enough for cloning.
S2: Yes and sailors in the past always described the dodo as being a very friendly animal. So it would make a good pet. It wasn't too large either. I can't see any other extinct animals becoming a pet, can you?
S1: No, indeed. 1 know it's a bird like the Great Auk but neither of them could fly. So if you kept either, it wouldn't escape from a park, a family or its home in the wild. You could also farm a dodo, unlike all the others, and produce many of them as exotic pets.S2: And what about its large nutritious eggs? Just one would feed a large family. So there's more than one reason for producing it in commercial numbers.
S1: Did you know that its meat is very tasty too! Perhaps it could be farmed like ostriches and provide a good source of protein.S2: The only problem is that it needs hot climate to survive. But that's easy to provide with all its other advantages. I don't think any of the other animals stands a chance against the dodo.
S1: So we both agree that the best extinct animal to be cloned is the dodo bird.
S2: Yes.3. A sample report(p.17)The dodo is the most suitable animal to be cloned for several reasons. First, it became extinct fairly recently so its DNA is still in good condition. Second, it was always described as being a very friendly animal and it would make a good pet. Third, it cannot fly. So it wouldn't escape from a park, a family or its home in the wild.
You could farm a dodo and sell it as an exotic pet. Fourth, it produces large nutritious eggs which could feed a large family. Fifth, its meat is very tasty too! Perhaps it could be farmed like ostriches and provide a good source of protein. Although it needs hot climate to survive, we feel that this can be easily provided. In return the dodo would provide a most useful source of pleasure and food.Finish Ex. 2, Page16;
Ex. 3-4, Page17.Homework
A. is excited by the possibility of cloning fierce and extinct animals
B. believes that extinct animals can be brought back to life by cloning
C. thinks it impossible or unsuitable to clone extinct animals like dinosaurs
D. dreams of dinosaurs returning to the earth主旨大意2. The film Jurassic Park is popular because _____.
A. people are interested in the subject
of cloning
B. all the actors are dinosaurs
C. it was directed by a scientist who
clones dinosaurs
D. it proves very interesting细枝末节A3. Which of the following is true? ____
Mice were cloned in 1981.
B. Dolly the sheep was the first cloned animal.
C. The name of the cloned cow is “Bison”
D. China was successful in cloning mammals.4. The reasons why a group of cloned animals all die of the same illness do NOT include____. A. they have the same arrangement of genes B. there isn’t enough diversity in the group for it to overcome illnesses
C. the illness is a new one
D. their arrangement of genes can not resist that new diseaseTrue or false. Scientists are still experimenting with cloning mammals because they think it can make money.
The animals that have disappeared from the earth, like dinosaurs, can be brought back to life through cloning.
If we can clone any extinct animals, we should let them live in a zoo.FFFThe popularity of the film Jurassic Park, in which a scientist clones several different kinds of extinct dinosaurs, proves how interested ordinary people are in the subject. 长句难句 电影《侏罗纪公园》的欢迎证实了普通人对这一话题是多么感兴趣,在该电影中一位科学家克隆了几种不同的恐龙。
in which引导定语从句, how引导宾语从句。 2. From time to time people suggest that the animals that have disappeared from the earth, like dinosaurs, can possibly be brought back to life through cloning. 人们时常设想从地球上消失的动物,例如恐龙,有可能通过克隆技术使它们复活。from time to time有时, 间或, 偶尔,
= occasionally, now and then。3. It is useless to clone an animal if there is not enough diversity in the group for it to overcome illnesses. 该群中如果没有足够的多样性使它克服疾病,克隆动物就没有用。当动词不定式、动名词或从句作主语时, 通常把它们放在谓语之后, 而用it作句子的形式主语。4. Diversity in a group means having animals with their genes arranged in different ways. 群中的多样性指的是拥有基因排列方式不同的动物。
with their genes arranged in different ways作定语, in different ways 以不同的方式。5. ...but others will survive and pass on the ability to resist that disease to their children.
......其他的将存活下来并传递给其后代抵抗这种病的能力。resist 作及物动词主要有三个义项:
抵抗, 对抗; 抵挡, 防止;
(与cannot, could not连用)
无法抗拒, 无法抵挡。base on/upon 以……为基础, 依据
其结构为: base sth. on/upon
sth. is based on/upon6. Based on what we know now, you can not clone animals that have been extinct longer than 10000 years. 据我们现在所知, 绝种一万年以上的动物不能克隆。 May the best animal win!
Which extinct animals are worth restoring by means of cloning? Choose one and use the information to help you argue why this animal should be restored to the earth.DiscussionGreat Auk (1844)Auroch (1627)Dodo bird (1755)Quagga (1883)A sample dialogue (P16)S1: I think the dodo bird should be returned to the earth. It hasn't been extinct very long. So its DNA will still be good enough for cloning.
S2: Yes and sailors in the past always described the dodo as being a very friendly animal. So it would make a good pet. It wasn't too large either. I can't see any other extinct animals becoming a pet, can you?
S1: No, indeed. 1 know it's a bird like the Great Auk but neither of them could fly. So if you kept either, it wouldn't escape from a park, a family or its home in the wild. You could also farm a dodo, unlike all the others, and produce many of them as exotic pets.S2: And what about its large nutritious eggs? Just one would feed a large family. So there's more than one reason for producing it in commercial numbers.
S1: Did you know that its meat is very tasty too! Perhaps it could be farmed like ostriches and provide a good source of protein.S2: The only problem is that it needs hot climate to survive. But that's easy to provide with all its other advantages. I don't think any of the other animals stands a chance against the dodo.
S1: So we both agree that the best extinct animal to be cloned is the dodo bird.
S2: Yes.3. A sample report(p.17)The dodo is the most suitable animal to be cloned for several reasons. First, it became extinct fairly recently so its DNA is still in good condition. Second, it was always described as being a very friendly animal and it would make a good pet. Third, it cannot fly. So it wouldn't escape from a park, a family or its home in the wild.
You could farm a dodo and sell it as an exotic pet. Fourth, it produces large nutritious eggs which could feed a large family. Fifth, its meat is very tasty too! Perhaps it could be farmed like ostriches and provide a good source of protein. Although it needs hot climate to survive, we feel that this can be easily provided. In return the dodo would provide a most useful source of pleasure and food.Finish Ex. 2, Page16;
Ex. 3-4, Page17.Homework