北师大版(2019)选择性必修 第三册Unit 9 Human Biology Lesson 1 To Clone or Not to Clone?课件(共25张PPT)

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名称 北师大版(2019)选择性必修 第三册Unit 9 Human Biology Lesson 1 To Clone or Not to Clone?课件(共25张PPT)
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版本资源 北师大版(2019)
科目 英语
更新时间 2024-04-04 21:01:09

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(共25张PPT)
Lesson 1 To Clone or Not to Clone
—Reading Comprehension
UNIT 9 HUMAN BIOLOGY
CONTENTS
Pre-reading
I
While-reading
II
Post-reading
III
Sentences analysis
IV
By the end of this period, you will be able to:
read for specific information about clone and understand words and sentences in text;
develop students’ basic reading and talking skills;
learn about the advantages and disadvantages of clone and discuss whether it is moral to clone.
Pre-reading
What do you know about cloning What is cloning
Cloning is the process of making an exact copy of a plant or animal with identical genes and developing it either naturally or artificially.
When was the first cloned animal created
Why are scientists so interested in cloning
What achievements have we made in cloning
What problems are we facing now
While-reading
Ⅰ. What is the passage mainly about
A.How to make artificial cloning.
B.Cloning will cause many problems.
C.Whether cloning should be continued.
D.The first cloning of primates was created.

Activity 1 Fast-reading for main ideas
Ⅱ. Match the main idea with each paragraph.
Para.1   A.Some successful mammals and problems with them.
Para.2 B.Moral concerns about cloning.
Para.3 C.The definition of cloning.
Para.4 D.The writer’s attitude to cloning.
Para.5 E.Potential benefits of cloning.
Para.6 F.The first-cloned primates.
Ⅰ.Read Para.1 carefully and do the following exercises.
1.What is TRUE about cloning according to paragraph 1
A.Cloning is a kind of new technology.
B.Natural cloning only happens on plants.
C.Twins are examples of artificial cloning.
D.There are two kinds of cloning.
2.What examples of natural cloning are given
One example of natural cloning is taking a cutting from a plant and putting it in soil,and another is identical twins.

Activity 2 Careful-reading for details
Ⅱ.Read Para.2 carefully and do the following exercises.
1.What can we know about Dolly
A.Dolly died early.
B.Dolly grew normally later.
C.Dolly grew abnormally at first.
D.The cloning of Dolly was natural cloning.

2.How has the science of cloning developed since the first cloned mammal
After Dolly,scientists have cloned more than 20 mammal species,including camels,cattle,deer,dogs,goats,and mice.(Scientists have been able to clone animals of other species.)
Ⅲ.Read Para.3 carefully and do the following exercises.
1.What is special about Zhong Zhong and Hua Hua
A.They were the first successful clones by Chinese animals.
B.They were the first successful cloned primates.
C.They were taken care of by scientists for more than five years.
D.They were the first mammals that were made out of non-reproductive cells.

2.What method was used by Dr.Sun Qiang to describe their efforts in cloning the monkeys
A.Listing numbers. B.Analyzing causes.
C.Citing famous sayings. D.Giving examples.
3.Why do Chinese scientists try to clone monkeys
A.To solve technical difficulties.
B.To help find effective treatments.
C.To get edited genes for further use.
D.To help medical research and people’s health.


Ⅳ.Read Paras.4-5 carefully and fill in the chart below.
Potential benefits Moral concerns
1._____ for diseases Preventing 2.______ Saving 3.________ time Reducing the 4.______ of animals being tested on Producing more 5.________ results Better 6.__________ Clones are likely to be treated as 7._______ rather than 8.___________ with their own identity.
They may be seen as 9.________.
Some organisations might 10._____ the technology for unethical purposes.
Cures
aging
research
number
accurate
treatments
objects
individuals
inferior
abuse
1. Fill in the chart below according to the text.
转折
让步
举例子
递进
递进
2. Read Para. 5 and underline the discourse markers (话语标记词).
Ⅴ.Read Para.6 carefully and do the following exercise.
What’s the writer’s attitude towards cloning
A.Subjective. B.Objective.
C.Indifferent. D.Interested.

Ⅵ.Read the whole passage again and do the following exercises.
1.In which column of a newspaper can you find this essay
A.Sports. B.Entertainment.
C.Science. D.Advertisement.

2.What is the structure of the passage

Post-reading
1.Why do researchers insist that the science of cloning should be further explored and advanced (Critical thinking)
Researchers insist on exploring cloning to continue making progress in curing diseases and developing treatments.
Activity 1 Discussion
2.After reading this passage,do you think cloning is a good idea?Why (Creative thinking)
Students’ own answer.
Natural cloning has lasted for generations. 1.____ example of this is identical twins.A sheep 2.______(call) Dolly was the first mammal to be cloned 3.____________(success) in 1996.Since Dolly,more than 20 mammal species have been cloned 4._________(include) camels and goats.In 2018,China announced that two monkeys 5._______________(clone).In comparison 6.____ other species,scientists have had to work hard to break the technical barrier to get primates with edited genes.Scientists say that this major breakthrough 7.______(offer) the potential to create monkeys with identical genes to give more accurate research results and perhaps lead to more 8._________(effect) treatments for various diseases.While scientists insist 9.___ is crucial to continue research,others raise moral 10.________(concern) and worry that the technology might be abused by some organisations.
An
called
successfully
including
had been cloned
with
offers
effective
it
concerns
Activity 2 Summary
1.She lived for six and a half years, only half the life of the sheep from which she was cloned.
[句式分析] 此句是____句。only half the life of the sheep...为six and a half years的______;from which she was cloned 为____从句,修饰先行词_____________。
[自主翻译] 
Sentences analysis
复合
同位语
定语
the sheep
多莉活了六年半,寿命只有母体绵羊的一半。
2.The reason they worked so hard to break this technical barrier was to get animals with edited genes and produce animal models that are helpful for medical research and human health.
[句式分析] 此句是____句。主句是主系表结构:___________是主句的主语,系动词was后to get animals...是____。句中they worked so hard to break this technical barrier为省略了关系副词why的____从句,修饰先行词reason;介词短语with edited gene为________,修饰animals;that引导____从句,修饰animal models。
[自主翻译]
复合
The reason
表语
定语
后置定语
定语
他们之所以如此努力地要突破这一技术壁垒,是为了
获得经过基因编辑的动物,研制动物模型,为医学研究和人类健康发展做贡献。
3.The successful cloning of primates has led to worldwide praise as a huge breakthrough that might lead to cures for various diseases and may also offer clues on how to prevent the aging process.
[句式分析] 此句是____句。that引导的是____从句,修饰a huge breakthrough,that在从句中作____;might lead to 和may also offer在从句中作并列____;how to prevent the aging process作on的____。
[自主翻译]
复合
定语
主语
谓语
宾语
灵长类动物的成功克隆获得了全世界的赞誉,被认为
是一项巨大的突破,可能会导致治愈多种疾病,也可能为如何防止衰老过程提供线索。
4.While some people believe it is crucial for scientific advancement,others raise moral concerns.
[句式分析] 此句是____句。While引导_________从句,相当于____________________;believe后面为省略了that的____从句。
[自主翻译]
复合
让步状语
Though/Although
宾语
尽管有些人认为这对于科学的进步至关重要,但也
有人提出了道德方面的担忧。
5.So far,it is still unknown what will happen to Zhong Zhong and Hua Hua as they grow up.
[句式分析] 此句是____句。it 为________,what will happen to Zhong Zhong and Hua Hua是____从句,what在从句中作____;as they grow up是________从句。
[自主翻译]
复合
形式主语
主语
主语
时间状语
到目前为止,我们仍不清楚中中和华华长大后会发生
什么。
If you had the chance to clone an animal or a person, what/who would you clone Talk about the reasons.
Homework