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視頻標(biāo)簽：Cloning
所屬欄目：高中英語優(yōu)質(zhì)課視頻
視頻課題：人教版英語選修八Unit2 Cloning Where is it leading us（Reading）廣西省級(jí)優(yōu)課
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人教版英語選修八Unit2 Cloning Where is it leading us（Reading）廣西省級(jí)優(yōu)課
教學(xué)設(shè)計(jì)：
標(biāo)題：人教版Book8
Unit2 Cloning: Where is it leading us?（Reading）
一. Teaching goals:
1. To arouse students interest in learning about cloning.
2. To learn about the procedure of animal cloning and the life of Dolly the sheep. 3. To develop student’s some basic reading skills.
2.語 言 目 標(biāo)(Language aim)
重 點(diǎn) 詞 匯 和 短 語 undertake, breakthrough, on the one hand…on the other hand ,cast down, impact…
二. 教 學(xué)重 難 點(diǎn) (Teaching important points)
1. Get the general idea of the passage.
2. Can retell the procedure of the cloning of Dolly the sheep.
三. 教 學(xué)方 法 (Teaching method)
Warming up; Fast reading; careful –reading; Task-based method & discussion
四. 教學(xué)步驟 (Teaching procedure) Step I Free talk.
1. What do you know about cloning? Do you think human beings can be cloned? Watch a video about it.
2.
Cloning is controversial, do you support the idea to clone yourselves? Why?
3.
And do you know that cloning can be divided into natural clone and
man-made clone? Step2 Reading Task1 Fast reading
1.
Skim the passage and get the main idea of each paragraph. Para 1 The ___________ of cloning
Para 2 The two major________ of cloning Para 3 The __________of Dolly
Para 4 The ______of cloning in society Para 5 People’s _________to cloning ①What’s the main idea of the passage?
The passage tells us that animal cloning raised ____________ and scientists are not sure about its _____________. ②What’s the writing style?
A. Expositive(說明性的) B. Argumentative（議論性的） C. Narrative（敘事性的） D. Descriptive（描寫性的）
Task2 Careful reading
1. Read the passage carefully and finish the exercise on 新課程P21 Step2 .
2. Watch a short video to know how Dolly was born. Task 3 Detailed reading
Para 1 The definition of cloning
Cloning happens both in ______ and in_______. They can be cloned by ________ and_______.
Para 2 The two major uses of cloning
1. The word “straightforward” means ______.
A. uncomplicated B. honest C. frank D.difficult
2. The lamb is the clone of the cell from sheep B because . A. it provides the egg cell B. it gives birth to the lamb C. it provides the nucleus D. it is a female sheep
Do you know about the procedure works of a sheep? Important words: egg cell (卵細(xì)胞)； nucleus (細(xì)胞核);
somatic cell (體細(xì)胞)；divide(分裂);embryo (胚胎); carrier (攜帶者,代孕者)
(Ask a student to retell the procedure of the cloning of Dolly the sheep.)
Para 3 The problems of Dolly
At first, the fact that Dolly seemed to developed ______ was __________. Then, came the news that Dolly became_________.
Altogether Dolly lived__________________, half the length of the life of
__________.
The sheep that donated the somatic cell most probably lived ________years.
A. 3 B. 6 C. 9 D. 12
Problems:
Cloned animals may develop the ________ of older animals. Cloned animals may live __________ the original one.
Para 4 The effect of Dolly
1. Translation On the other hand, Dolly’s appearance raised a storm of
objections and had a great impact on the media and public imagination. 2. The word “controversial” in paragraph 4 probably means____________. A. complicated B. arguable C. important
Para 5 People’s reaction to cloning
True or false:
1. People feared that Cloned Hitler would do harm to the world. 2. All the research into human beings will be forbidden.
3. Some countries to accumulate evidence of the abundant medical aid that cloning could provide.
The important events in animal cloning history Enjoy some pictures to know more about cloning. Step3 Summary
Fill in the blanks according to the text on textbook P21.
Conclusion:
We can conclude _______
A. Cloning is good for us.
B. Cloning has two aspects.
C. If cloning is used in a correct way it can bring much convenience to us. D. If cloning is used in an evil way it can cause much trouble. Therefore, we should use cloning in a wise way!
As a coin has two sides, everything has two aspects. On one hand, if
cloning is used in a correct way it can bring much convenience to us. On the other hand, if cloning is used in an evil way it can cause much trouble. Therefore, we should use cloning in a correct way.
Step4 Mini-Debate(group work)
Is cloning good or bad for us?
Advantages Disadvantages
Group 1 Group 2
Useful patterns:
Team A: I would like to suggest that ______________________ .so in my opinion, human cloning is good.
Team B: I don’t agree with you. Firstly, from the passage we know that_____________________. Secondly_____________________,
Thirdly, ___________________. So I think the research into human cloning should be forbidden.
Step5 Assignment
1. Preview language points in the Text.
2. Finish the exercise on reference book (P22—28).
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