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《Listening and vocabulary》集体备课PPT课件优质课下载
A human cell
A gene
- the part
of a cell
that control
how it
develops
Sheep A was created in a laboratory by scientists. It is a cloned sheep or clone.
Sheep B is the‘parent’of sheep A. Scientists used the genes of Sheep B to create Sheep A. Both sheep have identical genes—their genes are exactly the same.
Pre-listening 2 Word study
to be for
to be against
argument
nature
beneficial
Do you think cloning may be
beneficial /helpful to humans?
Do you think nature should be
left alone, or it is better to make
plants and animals the way we
want them?
Do you often have arguments
with people？
If you are against something, do
you think it is a good idea?