人教课标版高中英语选修8 Unit2 Cloning using language 课件（共31张PPT）
文档属性
| 名称 | 人教课标版高中英语选修8 Unit2 Cloning using language 课件（共31张PPT） |  | |
| 格式 | zip | ||
| 文件大小 | 1.7MB | ||
| 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 | 2020-05-11 08:22:52 | ||
图片预览
文档简介
(共31张PPT)
新课标人教版选修八
Unit2 Cloning
Period3 using language
Look at the following picture and think
which film it is from.
Have you ever seen the film Jurassic
Park? Why do people like this film?
What animals do you see in the film?
Are they real?
2. Do you think it is possible to clone dinosaurs?
Please enjoy some more pictures about dinosaurs.
霸王龙tyrannosaurus
剑龙stegosaurs
角龙 ceratopsids
雷龙 brontosaurus
翼龙pterodactyl
More animals that have extinct on the earth .
Great Auk (1844)
Auroch (1627)
Dodo bird (1755)
Quagga (1883)
Ⅱ.短语：
1．使……刻骨铭心 strike into one's heart
2．不时地；偶尔 from time to time
3 ．使复兴；使复活 bring … back to life
4．白费力气；枉费心机 in vain
5．状况良好/不好 (be)in good/poor condition
6．一定或注定(做)…… be bound to(do)
7. 意味着，可能造成… mean doing …
8. 生育；引起，产生,诞生give birth to …
Answer 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?
1. 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.
2. Why is it wrong to clone an extinct
animal if it 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.
1. 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
A
2. 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 year
推理判断
3.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
Language points
1. strike v.n struck, struck
1)撞；碰；撞击；碰撞
She fell, striking her head against the side of the boat.
她摔倒时头撞在船舷上。
2)击打，踢(球等)
He struck the ball into the back of the net.
他射出的球直入网底。
6)罢工（be on the strike）
The workers were striking because they wanted more money.
工人们在罢工，因为他们要求增加工资。
【知识拓展】
1)be struck by/on/with sb/sth 被某人(或某物)打动；迷恋某人(或某物)
I was struck by her beauty.
她的美貌给我留下了深刻的印象。
2)on the strike 罢工；处于工作停顿状态的
Most of the employees were on strike.
许多雇员在罢工。
3)strike...into one's heart 使……刻骨铭心
The ghost story struck fear into the hearts of the children.
那个鬼故事使孩子们心惊肉跳。
4)It strikes me that... 我觉得……； 我的印象是……
It suddenly struck me that we ought to make a new plan.
我突然想到， 我们应该制订一个新的方案。
5)Strike while the iron is hot. 趁热打铁
He should strike while the iron is hot.
他应该趁热打铁。
2.bring… back to life 使复生，复活
In spring, everything___________________. 春天， 万物复苏。
Among the extinct animals ,the dodo is _____________________________________.
bring … back to life 使…恢复生气
Flowers can bring a dull room back to life.
鲜花能使沉闷的房间恢复生气。
is brought back to life
the most suitable animal to bring back to life
3. initial
adj. 第一的，最初的，开始的
first ; happening at the beginning
In the initial stages
在最初阶段
____________________to decline the offer.
我的第一反应是婉言谢绝这个提议。
My initial reaction was
4. All efforts of cloning an animal will be in vain if there is not enough diversity in the group for it to overcome illnesses.
☆ in vain without success in spite of your efforts
徒劳; 白费力气
①我们的所有努力都付之东流了。
All our efforts ____________.
②我想带苏一起来，但没成功。
I _____________________ to come with us.
③我极力劝说她放弃，但是枉费口舌。
I _________________________________________.
were in vain
tried in vain to get Sue
tried in vain to persuade her to give it up
5. drawback n. 不利条件，缺点
( = a disadvantage or problem )
☆ the drawback of/ to sth(doing) sth
_______________________ is the cost.
它的主要缺点是成本高。
This ___________________________________ the new system.
这是引进新系统的一大弊端 。
The main drawback to/of it
is one major drawback of / to introducing
6. Based on what we know now, you cannot
clone animals that have been extinct longer
than 10,000 years.
Based on what we know now是过去分词短语
作状语, 意为 “根据我们现在所知”。
He made a description of the criminal
____________________.
2. Today people make choices about their eating
habits ________________________.
based on his memory
based on what they believe
Homework
1.复习with的复合结构
2.复习形容词化的过去分词做状语
新课标人教版选修八
Unit2 Cloning
Period3 using language
Look at the following picture and think
which film it is from.
Have you ever seen the film Jurassic
Park? Why do people like this film?
What animals do you see in the film?
Are they real?
2. Do you think it is possible to clone dinosaurs?
Please enjoy some more pictures about dinosaurs.
霸王龙tyrannosaurus
剑龙stegosaurs
角龙 ceratopsids
雷龙 brontosaurus
翼龙pterodactyl
More animals that have extinct on the earth .
Great Auk (1844)
Auroch (1627)
Dodo bird (1755)
Quagga (1883)
Ⅱ.短语：
1．使……刻骨铭心 strike into one's heart
2．不时地；偶尔 from time to time
3 ．使复兴；使复活 bring … back to life
4．白费力气；枉费心机 in vain
5．状况良好/不好 (be)in good/poor condition
6．一定或注定(做)…… be bound to(do)
7. 意味着，可能造成… mean doing …
8. 生育；引起，产生,诞生give birth to …
Answer 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?
1. 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.
2. Why is it wrong to clone an extinct
animal if it 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.
1. 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
A
2. 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 year
推理判断
3.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
Language points
1. strike v.n struck, struck
1)撞；碰；撞击；碰撞
She fell, striking her head against the side of the boat.
她摔倒时头撞在船舷上。
2)击打，踢(球等)
He struck the ball into the back of the net.
他射出的球直入网底。
6)罢工（be on the strike）
The workers were striking because they wanted more money.
工人们在罢工，因为他们要求增加工资。
【知识拓展】
1)be struck by/on/with sb/sth 被某人(或某物)打动；迷恋某人(或某物)
I was struck by her beauty.
她的美貌给我留下了深刻的印象。
2)on the strike 罢工；处于工作停顿状态的
Most of the employees were on strike.
许多雇员在罢工。
3)strike...into one's heart 使……刻骨铭心
The ghost story struck fear into the hearts of the children.
那个鬼故事使孩子们心惊肉跳。
4)It strikes me that... 我觉得……； 我的印象是……
It suddenly struck me that we ought to make a new plan.
我突然想到， 我们应该制订一个新的方案。
5)Strike while the iron is hot. 趁热打铁
He should strike while the iron is hot.
他应该趁热打铁。
2.bring… back to life 使复生，复活
In spring, everything___________________. 春天， 万物复苏。
Among the extinct animals ,the dodo is _____________________________________.
bring … back to life 使…恢复生气
Flowers can bring a dull room back to life.
鲜花能使沉闷的房间恢复生气。
is brought back to life
the most suitable animal to bring back to life
3. initial
adj. 第一的，最初的，开始的
first ; happening at the beginning
In the initial stages
在最初阶段
____________________to decline the offer.
我的第一反应是婉言谢绝这个提议。
My initial reaction was
4. All efforts of cloning an animal will be in vain if there is not enough diversity in the group for it to overcome illnesses.
☆ in vain without success in spite of your efforts
徒劳; 白费力气
①我们的所有努力都付之东流了。
All our efforts ____________.
②我想带苏一起来，但没成功。
I _____________________ to come with us.
③我极力劝说她放弃，但是枉费口舌。
I _________________________________________.
were in vain
tried in vain to get Sue
tried in vain to persuade her to give it up
5. drawback n. 不利条件，缺点
( = a disadvantage or problem )
☆ the drawback of/ to sth(doing) sth
_______________________ is the cost.
它的主要缺点是成本高。
This ___________________________________ the new system.
这是引进新系统的一大弊端 。
The main drawback to/of it
is one major drawback of / to introducing
6. Based on what we know now, you cannot
clone animals that have been extinct longer
than 10,000 years.
Based on what we know now是过去分词短语
作状语, 意为 “根据我们现在所知”。
He made a description of the criminal
____________________.
2. Today people make choices about their eating
habits ________________________.
based on his memory
based on what they believe
Homework
1.复习with的复合结构
2.复习形容词化的过去分词做状语