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选修9《Reading and vocabulary》新课标PPT课件优质课下载
Leading in:
Father and Son
Blood Type
A
B
A/ B/ AB/ O
Questions:
1.Why are they alike?
2.Why will the parents blood type decide their children’s blood type?
What’s DNA?
DNA- the Secret of Life
Fast reading:
Read the passage quickly and find the main idea of each part.
Match the parts with the main ideas.
Part 1 A
Part 2 B
Part 3 C
Scientists can use the technology of genetic engineering to insert new genes into human beings to create new characteristics.
Scientists have found the answer to one of the most important questions of biology. That is how living things reproduce themselves.
List four examples to illustrate the application of the genes in our present and future lives.
Detailed reading
Part 1: Answer the questions
1. When and who astonished the scientific community?
On February 28,1953, two scientists named James Watson and Francis Crick astonished the scientific community.
2. What had Watson and Crick succeeded in?