资源简介

(共23张PPT)
导
3mins
cloning
Pull out his own hair and blow on it.
What will happen What is the matter
Get to the topic
To clone or not to clone
Unit 9 Lesson 1
Natural cloning 自然克隆
take a cutting from a plant
从一个植物上截取一段插枝
place it into the soil
把它放进土壤
identical twins
同卵双胞胎
导
3mins
Dolly
the first cloned animal
in 1996
Zhong Zhong and Hua Hua
the first-ever cloned primate首次克隆的灵长类动物
in 2018
Artificial cloning人工克隆
导
3mins
Now, let's read the article to
explore more about cloning.
思
Task1. Complete [知识链接].
Task2. Find the main idea of each paragraph. 找出每段主题大意
Task3. Read the para. 1-3 and answer questions in your text
book .(P53) 读文章第1-3段，回答课本第53页问题。
Task4. Read the para. 4-6 and list the potential benefits and
moral concerns.(P54) 阅读第4-6段，列出潜在好处和道德担忧。
12mins
Read the passage, and finish the four tasks.
议
1. Find the main idea of each paragraph. 找出每段主题大意
2. Read the para. 1-3 and answer questions in your text book P53. 读文章第1-3段，回答课本第53页问题。
6mins
3. Read the para. 4-6 and list the potential benefits and moral concerns. 阅读第4-6段，列出潜在好处和道德担忧。
小组讨论：
cell
species
identical genes
to edit genes
to develop artificially
to break the technical barrier
to make an exact copy of
to produce animal models
Task1. [知识链接] Check your answer
细胞
物种
相同的基因
编辑基因
人工培育
打破技术障碍
精确复制
生产动物模型
definition & natural cloning
artificial cloning: cloned mammals
artificial cloning: cloned primates
the significance of cloning of primates
moral concerns
conclusion
Task2. Match the main idea with the paragraphs
Para 1
Para 2
Para 3
Para 4
Para 5
Para 6
展
10mins
Task3. Read and answer questions.
What is cloning
What examples of natural cloning are given
What was the first cloned mammal What happened to her
4. How has the science of cloning developed since the first cloned mammal
5. What development in cloning was announced in 2018 What was special about it
6. For how long did Dr. Sun Qiang’s team work Why did they work so hard
展
10mins
Para 1
Task3. Read and answer the questions
1. What is cloning
2.What examples of natural cloning are given
3. What was the first cloned mammal What happened to her
4. How has the science of cloning developed since the first cloned mammal
Para2
5. What development in cloning was announced in
2018
What was special about it
Para 3
6. For how long did Dr. Sun Qiang's team work
Why did they work so hard
Task4. List the potential benefits and moral concerns about cloning primates.
P54 5
Para 4
potential benefits
Para 5
moral concerns
Potential benefits
Moral concerns
A. prevent aging process
B. save research time
C. reduce the number of animals being tested on
D. producing more accurate results, better treatments
E. ethical questions
F. be treated as objects or individuals
G. clones are seen as inferior
H . some organisations may abuse the technology for unethical purpose
eg. will lead to cures for various diseases
eg. have the technical possibility of cloning other species
展
10mins
评
10mins
Well done！
All of you performed extremely well today!
Clap for yourself!
To clone or not to clone
Para.1 Definition of cloning.
Para.2-3 Successful attempts at cloning
Dolly: a cloned sheep
Zhong Zhong and Hua Hua: two cloned long-tailed monkeys
Para.4-5 Debate on cloning
Positive: Successful cloning leads to great breakthroughs.
Negative: Cloning also causes disagreements and provokes
Strong emotions.
Para6:The author’s attitudes.
A knife is useful, but it can also kill.
评
10mins
what we have learnt :
Tip1: Pay attention to the first sentence of the paragraph.
Summary
“Science is a powerful instrument. How it is used, whether it is a blessing or a curse to mankind, depends on mankind and not on the instrument. A knife is useful, but it can also kill. ”
评
the author’s attitude
Critical thinking
What’s your attitude towards cloning
Do you think cloning is a good idea
To clone or not to clone
Voice your opinion
It's a good idea:
the significance of cloning / organ transplantation: by cloning organs, countless lives can be saved.
It's a bad idea:
clones health problems / moral concerns / ethical problems
Different people have different opinions. We should weigh the pros and cons(利弊) of cloning technology, view it objectively and use it for good.
1. What is true about Dolly
A. It was the first animal that was cloned successfully.
B. It lived much longer than the sheep she was cloned from.
C. It developed a sickness the moment it was cloned.
D. It was an example of natural cloning.
答案 A
【链接高考】
检
3mins
2. What can be inferred from the third paragraph
A. The cloning of the monkeys was not that complex.
B. Chinese scientists were the first to clone primates.
C. Mammals include apes,monkeys,sheep and humans.
D. Cloning monkeys is helpful to animal protection.
答案 B
Tip2: Pay attention to the key words in the question.
Homework
Use what you have learnt today to write an article about your attitude towards cloning.

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