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重庆大学版（顺序选修）英语7二年级《Theme A Man and Disasters Natural Disasters Unit 1 Man and Natural Disasters Reading Father and Son in the Earthquake》优秀教学课件
the procedure works of the sheep?
What can you see in the picture?
I can see a strawberry plant producing runners in a natural form of cloning.
Who cut the stem off the plant?
A gardener.
The gardener is going to put it into a pot to produce another plant. He is actually making a copy of the plant.
What do you know about twins?
There are twins of the same sex and those of different sexes. The twins here are identical in sex and appearance and are good examples of natural clones.
They carry the same genetic information. The fertilized egg has split into two while inside the mother, and so produced two identical human babies.
How much do you know about Cloning?
A clone is an animal or plant produced naturally or artificially from the cells of another animal or plant and is exactly the same as it.
Reading
What is the cloning.
Two major uses of cloning.
The birth and death of Dolly.
The impact of Dolly.
The main idea of each paragraph
People’s reaction to cloning
Scanning
What is the cloning.
Two major uses of cloning.
The birth and death of Dolly.
The impact of Dolly.
The main idea of each paragraph
People’s reaction to cloning