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Cloning
Natural clone or
Man-made clone？
Dolly the sheep
A strawberry plant
Growing new plants
Twins
is one that occurs in nature.
A natural clone
is one that is produced through human intervention.
(人类介入）
A man-made clone
Dolly the sheep
She was while the others were born .
How does Dolly differ from other sheep?
man-made clone
cloned
naturally
Skim the passage and get the main idea of each paragraph.
Para 1
Para 2
Para 3
Para 4
Para 5
The ___________ of cloning
The two major_____ and the__________
of cloning
The __________of Dolly
The ________of cloning in society
The ____________towards cloning
uses
problems
effect
procedure
definition
attitudes
The passage tells us that animal cloning raised and scientists are not sure about its .
arguments
future
What’s the writing style?
Expositive(阐明性的)
Argumentative（议论性的）
Narrative（叙事性的）
Descriptive（描写性的）
★
What’s the main idea of the passage?
Cloning happens both in ______ and in_______.
They can be cloned by ________ and_______.
plants
animals
themselves
humans
Natural clone
Man-made clone
Para 1
The definition of cloning
word “straightforward” means ______.
uncomplicated
honest
frank
difficult
Para 2
The major uses and procedures of cloning
cloning of Dolly the sheep succeeded because____. A. its easier to clone a sheep than other animals B. the scientists were determined and worked
hard with patience
C. the scientists were rewarded and got lots of
money
D. many other attempts to clone mammals
failed
The determination and patience of the scientists paid off. (L9)