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选修8《Using LanguageⅡ》精品教案优质课下载
technology.?Then?talk?about?the??AI?and?cloning.
Step 2 Skimming
Skim the passage, find some information about Cloning and then arrange the following statements according to their time order.
a. Cow gave birth to a bison
b. Research using the embryos of mice
c.First cloning of a mammal
d. First experimental clones of cows
e. Work on embryos of sheep and mice
f. Cloning of frogs
g. China's first cloned twin calves
h. First experimental clones of mice
Step 3 Reading comprehension
First show a short video of Jurrasic World,then introduce the topic : cloning the dinosaurs.
Read para2 and choose the right answers.
1 The reasons why the returning of dinosaurs to the EARTH is impossible and unsuitable are the following except_______.
A. no perfect DNA for the growth of cells.
B. no diversity of genes arranged in different ways.
C. that there is no suitable habitat for dinosaurs.
D. that the present high technology is unable to clone extinct animals.
2 Why does cloning need perfect DNA and diversity in groups?
A. Because it can clone animals without diseases.
B.Because it can pass on its ability to resist diseases and continue the species.
C.Because it can close much more advanced generations.
D.Because it can make the cloning animals live longer and healthier.
Answer the following questions: