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选修8unit2cloning-where-is-it-leading-usPPT课件

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Para 1: The definition of cloning
It happens both in _p_l_a_n_t_s__ and in _a_n_im__a_l_s. They can be cloned by _t_h_e_m_s_e_lv_e_s_ and _h_u_m__a_n_s_.
Natural clone
Man-made clone
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Para 2: The major uses and procedures of cloning
1. How many major uses do cloning have? Firstly, …commercial… Secondly, …research…
T
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discussion Suppose human cloning
is permitted by law, would you like to clone yourself? And why?
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About Dolly the sheep
Encouraging news: Dolly developed __n_o_r_m_a_l_ly__. Disturbing news:
Dolly lived for six and a half years, half the length of the life of the original one.
True or false: 1. People feared that Cloned Hitlers would do
harm to the world. T 2. All the research into human beings will be
forbidden. F
Many governments forbade research into human beings. 3. Some countries will use cloning in a wise way.
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in 1996 cloned sheep in 2001 cloned cattle In 2002 cloned rabbits and cats
In 2005 cloned dogs
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Choose the best answer.
1). The main idea of the text is____ A. animal cloning is very valuable and can benefit the world. B. animal cloning could be misused by bad people so it must be forbidden C. animal cloning is well developed because Dolly the sheep was born. D. animal cloning raised arguments and scientists are not sure about its future.
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Para 2 The major uses and procedures of cloning
Para 5 People’s reaction to cloning Para 3 The problems of Dolly Para 4 The impact of Dolly Para 1 The definition of cloning
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Para 4: The impact of Dolly
The word “controversial” in Para 4 probably means ____B____. A. complicated B. arguable C. important
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Para 5: People’s reaction to cloning
2. How many female sheep participate in the cloning of a new sheep? 3
3. When was the cloning of Dolly the sheep born? Fra bibliotek9966
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Para 3: The problems of Dolly
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