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外研2003课标版《Listening and vocabulary》优质课PPT课件下载
Pre-listening:
What is the relationship between the two animals ?
What is clone ?
A clone is an organism（生物体）, an animal or a plant, that has been produced _______ (naturally/ artificially) from the genes of another animal or plant.
Gene – the part of a cell in a living thing that controls what it looks like ,how it grows and how it develops
Definition :
1. Who do we get our genes from?
2. Who do cloned animals get their genes from?
3. Are the parents in two sentences the same? Why?
Our parents.
Their parents.
No, they aren’t.
a male and a female,
4. What’s the relationship between the cloned animal and its parent?
The cloned animal that is created in the______ (place) is a ______of its parent, so they are _______(adj.).
the same or exactly alike
copy
identical
lab
Our parents consist of__________________
while cloned animals’ parents consist of only one male or female.
Are you for cloning? OR Are you against cloning?
Activity 3 on P61: Say which of the arguments below are the advantages and which are disadvantages Write A (advantage ) for D (disadvantage )
Cloning is against nature._______.
Cloning will be beneficial to humans. For example,