课件19张PPT。 ReadingThe perfect copyUnit 3Learning objectives:1.To arouse students’ interest in the unit topic
2.To help students know more about cloning technology
3.To encourage students to participate in the debate relevant to cloningA dog or a eagle? A frog or a crocodile?A tortoise or a bear?A dog or a man?Do you think they are perfect cloned animals?The perfect copyTitle understandingHow can you understand the word copy?
A. model
B. clone
C. similarity
D. imitationcloned pigsscientific term
(科学术语)Reading strategy
Go through the reading strategy about
how to understand the meaning of scientific terms. The passage is mainly about_______.
A. what cloning is
B. the advantage of cloning
C. arguments about cloning human embryos
D. the disadvantage of cloning
2. What can we learn from the last passage?
A. Cloning animals is illegal in Italy.
B. Chinese scientists are trying to benefit mankind
by using cloning technology.
C. Chinese scientists want to be the first to clone a
human baby.
D. Chinese scientists have focused their efforts on
cloning humans.
Skimming:Listening:
Listen to the tape from paragraph2 to paragraph5.
Circle the words and some questions you don’t know.Prediction(预测)
What attitude does the author hold
positive
towards cloning, negative ?
neutral (中立的)
['nju:tr?l] Answer the following questions:1. How many years did Dolly live?
2. Why were people worried about the birth of Dolly?
3. What does Ian Wilmut think cloning should be focused on?
4. What’s the problem with Faye Wilson?
5. What has an Italian doctor declared?
line10line16~18line11~12line21~22line27~28Careful reading :Let’s find out the main idea of each paragraghPara 1
Para 2
Para 3
Para 4
Para 5
Para 6An announcement about the first cloned human embryo caused much debate.The first cloned mammal was Dolly. Ian Wilmut is shocked that some scientists are considering cloning human beings.A woman wants to have a cloned baby.Cloning human embryos is illegal in many countries, but some scientists still want to clone human beings.Chinese scientists continue to research ways in which cloning can benefit mankind.What’s the author’s attitude towards cloning?neutralPauline Carter
Colin Jakepositive
negative
neutralpositive
negative
neutralPauline Carter thinks:
1. nature will pay back if we toy with nature. ( )
2. we should clone fewer babies to reduce Earth’s population. ( )
3. the lady who cannot have a baby can adopt an orphan, but not have a cloned baby. ( )TTFThe first letter :True or false ?Colin Jake thinks:
the news that the first human embryo has be cloned successfully is very terrible. ( )
2. scientists have succeeded in challenging. moral ideas. ( )
3. if she had the chance, she would clone her dead daughter . ( )FFTThe second letter :True or false ?Task-based readingcellsillegalresearchsucceededsavebirthdiedNegativenaturewrongPost reading A debate Rules to follow:
1.Think of as many reasons as possible to support
your idea.
2.Present at least three reasons.
A debate: Agreement or Disagreement
Are you for or against human cloning?foragainstYour reasons1. I am for…
2. I am in complete agreement with …
3. I support that…
4. From my point of view, it seems that …
5. On a personal note, human cloning …
6. As far as I am concerned . I (don’t) support
7. I am strongly against…
8. Personally, I agree / disagree because …
9. For one thing,… For another , …/ on the one hand…on the other hand …
10.In short (In brief /In a word), I firmly (don’t) support the view that …
Useful expressionsHomework:
1.Search the Internet for more information about cloning .
2.Write a letter to the editor and express your opinions on human cloning .
3.Preview the language points of the text.