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Unit 2 Cloning Cloning: Where is it leading us?

SKIMMING: MATCH THE MAIN IDEA WITH EACH PARAGRAPH A. Two major uses and procedure of cloning. B. The definition of cloning. C. The effect of cloning in society. D. People’s attitude towards cloning. E. The problems of Dolly . Para.1 Para.2 Para.3 Para.4 Para.5

Skimming: The main idea of the text : 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.

1.It can be inferred from the passage that a cloned animal_____. Scanning: 1.It can be inferred from the passage that a cloned animal_____. A. usually lives as long as the original one B. usually lives longer than the original one C. usually lives shorter than the original one D. is usually as healthy as the original one . B

2. Which of the following is not an advantage of cloning? Scanning: 2. Which of the following is not an advantage of cloning? Cloning can be used for medical purposes. Large quantities of food can be produced by cloning. Cloning can help keep animals from becoming extinct. D. Famous persons who have passed away can be cloned.

Scanning: 3.In the second paragraph, the word “straightforward” means ____. A. uncomplicated B. honest C. frank D. difficult 4.What happened to Dolly the sheep? A. She is living healthily. B. She became ill and died at last. C. Her child also died at the age of six. D. All the scientists were not sad about her death.

5.The writer’ s point of view in this reading passage is ______. Scanning: 5.The writer’ s point of view in this reading passage is ______. Positive. Negative. C. Objective. (客观的) D. Indifferent.(冷漠的)

● Cloning happens both in _______and in________. plants animals Careful Reading Para 1 Read together and fill the blanks. ●What is cloning ? Cloning is a way of making an exact copy of another animal and plant. ● Cloning happens both in _______and in________. plants animals

1.How many major uses do cloning have? Para 2 Answer the following questions. 1.How many major uses do cloning have? 2. When was the cloning of Dolly the sheep born? What made scientists succeed in cloning it? Firstly, …commercial… Secondly, …research… 1996. It was their determination and patience that paid off.

产出 It’s your turn. How to produce a sheep （我也来当科学家） 无核卵细胞 有核卵细胞 用电融合细胞 体细胞 取出细胞核 代孕母羊 细胞分裂形成胚胎 It’s your turn.

Para 3-4 Fill in the chart. The problems of Dolly ●At first, the fact that Dolly developed __________ was ____________ ●Then came the disturbing news that Dolly had become _______________.She lived only ___________________ . The effect of cloning in society ●It raised a storm of __________ and had a great impact on the ______and public_____________. ● It opened everybody’s eyes to the possibility of using cloning to cure ________________ and even producing _______________. Para 3-4 Fill in the chart. normally encouraging seriously ill six and a half years objections media imagination serious illnesses human beings

Para 5 Some governments forbade research into human beings. If it is false, try to correct it. True or False: 1 Religious leaders agree to clone great people. 2 All the research into human beings will be forbidden. 3 Some countries will use cloning in a wise way. Some governments forbade research into human beings.

Cloze: Cloning is a way of ______ (make) an exact copy of another animal or plant. Cloning has two ______ (majority) uses. Firstly, it is used to produce plants. Secondly, it is _________ (value) for medical research on animals. Cloning plants is straightforward _______cloning animals is very complicated. In 1996, scientists __________(succeed) in cloning Dolly the sheep. Then came______ -_ disturbing news that Dolly was ill and then died. Dolly’s appearance raised a storm of ____________(object). ____________, scientists still wonder whether cloning will help or harm us and where it is leading us.

Look at these pictures, and discuss this question with your partner. Are you for or against cloning human beings? Give your reasons.

They have the same face. People are no longer special to each other.

恐怖分子头目本拉登

Possible sentence patterns: People’s views vary from person to person. I am for…for one thing…for another thing … I am against …on one hand…on the other hand… …hold the view that…/…in favor of … …object to (反对) to the view that… In my opinion…

HOMEWORK: Write a short passage about cloning of human beings. Read the text again after class and pick out the appositive clauses.

Thanks for your attention

Disadvantages: Advantages: Nowadays, there is a heated debate over whether huamn cloning should be allowed. Disadvantages: Group 3 and 4 Advantages: Group 1 and 2 cure serious illnesses (rare diseases, incurable diseases ) help infertile(不能生育的) people have babies of great benefit to… give rise to moral questions terrorists… make use of … contribute to/lead to the spread of new diseases

Cloze: making Cloning is a way of ______ (make) an exact copy of another animal or plant. Cloning has two ______ (majority) uses. Firstly, it is used to produce plants. Secondly, it is _________ (value) for medical research on animals. Cloning plants is straightforward _______cloning animals is very complicated. In 1996, scientists __________(succeed) in cloning Dolly the sheep. Then came______ -_ disturbing news that Dolly was ill and then died. Dolly’s appearance raised a storm of ____________(object). ____________, scientists still wonder whether cloning will help or harm us and where it is leading us. major valuable while succeeded the objections However