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《Warming up、Pre-reading、Reading、Comprehending》最新PPT课件优质课下载
2.To think about the problem in a logical way.
3.Based on your gained knowledge from biology , try to describe cloning in English.
What is cloning?
4. To learn more about cloning :
What are the advantages of cloning？
What are the problems or dangers of cloning？
5.What is your opinion of cloning？
Cloning is a way of making an exact copy of another animal or plant.It can be divided into natural clone and man-made clone. A natural clone is one that occurs in nature and a man-made clone is one that is finished with the aid of people.
From this concept ,let’s decide which one is natrual and which one is man-made
A strawberry plant
The plant produces its own runners.
Take cuttings from growing plants to make new ones.
A stem
They are identical in appearance, and are produced from the same original egg.
The twins
It is the exact copy of another sheep and the first cloned mammal.
Dolly the sheep
From this we have fully understood the concept of cloning. Now we will skim
the text to learn more about it.
Main idea of each para.(skimming)
______ The development of Dolly.
______ The future of cloning. ______ The concept of cloning.
______Arguments brought by Dolly . ______ Two major uses of cloning.
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