人教版高中英语选修8课件：Unit2 Cloning Using Language课件(共32张PPT)
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| 名称 | 人教版高中英语选修8课件：Unit2 Cloning Using Language课件(共32张PPT) |  | |
| 格式 | zip | ||
| 文件大小 | 3.0MB | ||
| 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 | 2020-04-23 11:26:55 | ||
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课件32张PPT。Unit 2 Cloning
Using language Extensive readingThe return of the dinosaurs ?Please enjoy some pictures about dinosaurs. 霸王龙tyrannosaurus剑龙stegosaurs角龙 ceratopsids雷龙 brontosaurus翼龙pterodactylAnswer the following questions: 1. Why shouldn’t you clone an extinct animal if there isn’t enough diversity in the group?
2.Why is it wrong to clone an extinct animal if it would have to live in a zoo?
3.Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years? Reading1. Why shouldn’t you clone an extinct animal if there isn’t enough diversity in the group? Keys: There will not be enough genetic variation in the group to be able to resist new illnesses. Why is it wrong to clone an extinct animal
if it would have to live in a zoo?
It is not a good idea to clone an animal that would have to live in a zoo because it is not a suitable habitat to develop and increase its numbers. The zoo is not a natural environment for a wild animal.3. Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years?
The DNA of animals more than 10,000 years old is not suitable for cloning, for it can’t survive so long.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 earthReading comprehension2. 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 interesting3. 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 disease5. We can infer from the text that____
A. scientists are experimenting to clone dinosaurs
B. dinosaurs will never return to the earth
C. cloned animals will only live in the zoo
D. the DNA of dinosaurs can only survive 10 000 yearsTrue 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.FFF 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.Language points 1 做某事的可能性
2 使电影制作人兴奋
3使...刻骨铭心
4 离做....还很远
远远不能做...
5 用...做实验
6 正如下表所示
7 致力于
8 生下, 分娩 The possibility of doing sth.excite film makersstrike…into one’s heartbe a long way from doingexperiment withas this list showswork on give birth to9 偶尔，有时
10 通过克隆使...复活
11 据我们现在所知
12 最初的要求
13 徒劳的
14 克服疾病
15 意味着
16 基因用不同的
方式排列
from time to time
bring..back to life through cloning
with what we know now
initial requirement
in vain
overcome illnesses
mean doing
with genes arranged in different ways17 把抵抗疾病的
能力传给下一代
18 做某事的缺点
19 使物种延续
20 过自然地生活
21 基于
22 恐龙回归地球
的可能性
23 抵制做某事 pass on the ability to resist that disease to the next generation
the drawback to doing
continue the species
lead/live a natural life
be based on
the chance of dinosaurs returning to the earth
resist doing1.The popularity of the film such as Jurassic Park, in which a scientist clones several different kinds
of extinct dinosaurs, proves how ideas struck a mixture of fear and excitement into people’s hearts.
strike … into one’s heart: 使…刻骨铭心他的话使我深感恐惧。
His words strike terror into my heart.2. strike：(过去式_______;过去分词 _______)
1). He fell, striking his head on the edge of the
table. ______________
2). The area was struck by an outbreak of cholera.
____________________________
3). An awful thought has just struck me.
___________
4). They struck for better working conditions.____
5). The clock has just struck three. _____________
6) strike a match __________________struckstruck碰，撞，打（灾难，疾病等）侵袭，爆发想起，想到罢工报时，敲响划，擦火柴
3. vain: adj. 徒劳的，枉然的，无结果的；
自负的，自恃过高的 vain attempt/hope/effort
徒劳的尝试/希望/努力in vain: 枉费心机，徒劳无益，白费力气All our efforts were in vain.
They tried in vain to persuade her to go.4. resist vt. ______________抵抗；对抗resist sth. 抵制；阻挡某事
resist doing sth. 反对/抵制做某事
can’t/couldn’t resist doing sth =
can’t/couldn’t help doing sth 忍不住做某事 The bank strongly resisted cutting interest rates.
She was charged with resisting arrest.
He couldn’t resist showing off his new car.resistance：n. 抵制，抵抗
resistant: adj. 抵制的，抵抗的
Using language Extensive readingThe return of the dinosaurs ?Please enjoy some pictures about dinosaurs. 霸王龙tyrannosaurus剑龙stegosaurs角龙 ceratopsids雷龙 brontosaurus翼龙pterodactylAnswer the following questions: 1. Why shouldn’t you clone an extinct animal if there isn’t enough diversity in the group?
2.Why is it wrong to clone an extinct animal if it would have to live in a zoo?
3.Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years? Reading1. Why shouldn’t you clone an extinct animal if there isn’t enough diversity in the group? Keys: There will not be enough genetic variation in the group to be able to resist new illnesses. Why is it wrong to clone an extinct animal
if it would have to live in a zoo?
It is not a good idea to clone an animal that would have to live in a zoo because it is not a suitable habitat to develop and increase its numbers. The zoo is not a natural environment for a wild animal.3. Why can’t you clone the DNA of animals that have been extinct longer than 10,000 years?
The DNA of animals more than 10,000 years old is not suitable for cloning, for it can’t survive so long.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 earthReading comprehension2. 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 interesting3. 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 disease5. We can infer from the text that____
A. scientists are experimenting to clone dinosaurs
B. dinosaurs will never return to the earth
C. cloned animals will only live in the zoo
D. the DNA of dinosaurs can only survive 10 000 yearsTrue 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.FFF 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.Language points 1 做某事的可能性
2 使电影制作人兴奋
3使...刻骨铭心
4 离做....还很远
远远不能做...
5 用...做实验
6 正如下表所示
7 致力于
8 生下, 分娩 The possibility of doing sth.excite film makersstrike…into one’s heartbe a long way from doingexperiment withas this list showswork on give birth to9 偶尔，有时
10 通过克隆使...复活
11 据我们现在所知
12 最初的要求
13 徒劳的
14 克服疾病
15 意味着
16 基因用不同的
方式排列
from time to time
bring..back to life through cloning
with what we know now
initial requirement
in vain
overcome illnesses
mean doing
with genes arranged in different ways17 把抵抗疾病的
能力传给下一代
18 做某事的缺点
19 使物种延续
20 过自然地生活
21 基于
22 恐龙回归地球
的可能性
23 抵制做某事 pass on the ability to resist that disease to the next generation
the drawback to doing
continue the species
lead/live a natural life
be based on
the chance of dinosaurs returning to the earth
resist doing1.The popularity of the film such as Jurassic Park, in which a scientist clones several different kinds
of extinct dinosaurs, proves how ideas struck a mixture of fear and excitement into people’s hearts.
strike … into one’s heart: 使…刻骨铭心他的话使我深感恐惧。
His words strike terror into my heart.2. strike：(过去式_______;过去分词 _______)
1). He fell, striking his head on the edge of the
table. ______________
2). The area was struck by an outbreak of cholera.
____________________________
3). An awful thought has just struck me.
___________
4). They struck for better working conditions.____
5). The clock has just struck three. _____________
6) strike a match __________________struckstruck碰，撞，打（灾难，疾病等）侵袭，爆发想起，想到罢工报时，敲响划，擦火柴
3. vain: adj. 徒劳的，枉然的，无结果的；
自负的，自恃过高的 vain attempt/hope/effort
徒劳的尝试/希望/努力in vain: 枉费心机，徒劳无益，白费力气All our efforts were in vain.
They tried in vain to persuade her to go.4. resist vt. ______________抵抗；对抗resist sth. 抵制；阻挡某事
resist doing sth. 反对/抵制做某事
can’t/couldn’t resist doing sth =
can’t/couldn’t help doing sth 忍不住做某事 The bank strongly resisted cutting interest rates.
She was charged with resisting arrest.
He couldn’t resist showing off his new car.resistance：n. 抵制，抵抗
resistant: adj. 抵制的，抵抗的