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选修6《Reading and vocabulary》公开课PPT课件优质课下载
I Lead- in
DNA
stem cell
gene
Cloning and DNA
II Scanning
Scan the article and get to know more. P64
Tips : Slow down when reading key words.
DNA:
a clone:
enzyme[?enza?m]:
bacteria[b?k?t??ri?]:
a stem cell:
a transparent twisting ladder
made of the fundamental components of life
basic & essential parts
chemical formed in the body
an organism genetically identical to another
tiny organisms causing disease
bacterium n.
a flexible cell that can develop into every other type of cell in the body
Cloning and DNA
II Scanning
Can you tell the style of this article?
A. Comparison essay B. Narrative essay