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《Listening and vocabulary》最新PPT课件优质课下载
Pre-listening
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?
We get our genes from our parents.
They get their genes from their parents.
No, they are not the same.
The first parents consist of a male and female,
while the second parents consist of only a male
or female.
4. What the relationship between the clone animal and its parent?
The cloned animal is created in the______ and is a ______of its parents, so they are ________.
copy
identical
the same or exactly alike
lab
beneficial
extinct
argument
be for
be against
disagree
helpful
support
disagreement or quarrel